From 89a41cbba6610b48e793ce6ac5bd46031c7531cc Mon Sep 17 00:00:00 2001 From: Michal Suchanek Date: Fri, 30 Oct 2015 13:34:00 -0700 Subject: mtd: ofpart: document the lock flag. The lock flag of ofpart is undocumented. Add to binding doc. Signed-off-by: Michal Suchanek Cc: Sascha Hauer Acked-by: Rob Herring Signed-off-by: Brian Norris --- Documentation/devicetree/bindings/mtd/partition.txt | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt index f1e2a02381a4..8dc4bf9dc8e5 100644 --- a/Documentation/devicetree/bindings/mtd/partition.txt +++ b/Documentation/devicetree/bindings/mtd/partition.txt @@ -30,6 +30,8 @@ Optional properties: partition should only be mounted read-only. This is usually used for flash partitions containing early-boot firmware images or data which should not be clobbered. +- lock : Do not unlock the partition at initialization time (not supported on + all devices) Examples: -- cgit v1.2.3 From a486d11f5d71b88eb235fdfc035eebca5f35f120 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 15 Oct 2015 15:08:44 +0200 Subject: mtd: afs: rename structs and functions for v1 Since we're gonna add the v2 version of flash information structure and we want to avoid confusion, rename the old functions to *v1. Cut the word "structure" from the struct name, it is pretty obvious that it is a struct already from the keyword. Cc: Ryan Harkin Cc: Liviu Dudau Signed-off-by: Linus Walleij Signed-off-by: Brian Norris --- drivers/mtd/afs.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index 96a33e3f7b00..9af00528586f 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -34,7 +34,7 @@ #include #include -struct footer_struct { +struct footer_v1 { u32 image_info_base; /* Address of first word of ImageFooter */ u32 image_start; /* Start of area reserved by this footer */ u32 signature; /* 'Magic' number proves it's a footer */ @@ -42,7 +42,7 @@ struct footer_struct { u32 checksum; /* Just this structure */ }; -struct image_info_struct { +struct image_info_v1 { u32 bootFlags; /* Boot flags, compression etc. */ u32 imageNumber; /* Unique number, selects for boot etc. */ u32 loadAddress; /* Address program should be loaded to */ @@ -67,10 +67,10 @@ static u32 word_sum(void *words, int num) } static int -afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, - u_int off, u_int mask) +afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, + u_int off, u_int mask) { - struct footer_struct fs; + struct footer_v1 fs; u_int ptr = off + mtd->erasesize - sizeof(fs); size_t sz; int ret; @@ -126,7 +126,7 @@ afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, } static int -afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr) +afs_read_iis_v1(struct mtd_info *mtd, struct image_info_v1 *iis, u_int ptr) { size_t sz; int ret, i; @@ -182,16 +182,16 @@ static int parse_afs_partitions(struct mtd_info *mtd, * the strings. */ for (idx = off = sz = 0; off < mtd->size; off += mtd->erasesize) { - struct image_info_struct iis; + struct image_info_v1 iis; u_int iis_ptr, img_ptr; - ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask); + ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask); if (ret < 0) break; if (ret == 0) continue; - ret = afs_read_iis(mtd, &iis, iis_ptr); + ret = afs_read_iis_v1(mtd, &iis, iis_ptr); if (ret < 0) break; if (ret == 0) @@ -215,18 +215,18 @@ static int parse_afs_partitions(struct mtd_info *mtd, * Identify the partitions */ for (idx = off = 0; off < mtd->size; off += mtd->erasesize) { - struct image_info_struct iis; + struct image_info_v1 iis; u_int iis_ptr, img_ptr; /* Read the footer. */ - ret = afs_read_footer(mtd, &img_ptr, &iis_ptr, off, mask); + ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask); if (ret < 0) break; if (ret == 0) continue; /* Read the image info block */ - ret = afs_read_iis(mtd, &iis, iis_ptr); + ret = afs_read_iis_v1(mtd, &iis, iis_ptr); if (ret < 0) break; if (ret == 0) -- cgit v1.2.3 From 8cf980185d2bf672a5c1d03935f1f165836bb4b0 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 15 Oct 2015 15:08:45 +0200 Subject: mtd: enable AFS selection for ARM64 ARM use their special partitions also on the ARM64 architecture reference designs, so enable this for ARM64. Cc: Ryan Harkin Cc: Liviu Dudau Signed-off-by: Linus Walleij Signed-off-by: Brian Norris --- drivers/mtd/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index a03ad2951c7b..42cc953309f1 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -112,7 +112,7 @@ config MTD_CMDLINE_PARTS config MTD_AFS_PARTS tristate "ARM Firmware Suite partition parsing" - depends on ARM + depends on (ARM || ARM64) ---help--- The ARM Firmware Suite allows the user to divide flash devices into multiple 'images'. Each such image has a header containing its name -- cgit v1.2.3 From 9498440fff21649cabe529f1d9d4e3bc668fc125 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 15 Oct 2015 15:08:46 +0200 Subject: mtd: afs: break out v1 footer magic to a define Break out the magic number to a #defined constant. Cc: Ryan Harkin Cc: Liviu Dudau Signed-off-by: Linus Walleij Signed-off-by: Brian Norris --- drivers/mtd/afs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index 9af00528586f..d09280ae12bd 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -34,6 +34,8 @@ #include #include +#define AFSV1_FOOTER_MAGIC 0xA0FFFF9F + struct footer_v1 { u32 image_info_base; /* Address of first word of ImageFooter */ u32 image_start; /* Start of area reserved by this footer */ @@ -90,7 +92,7 @@ afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, /* * Does it contain the magic number? */ - if (fs.signature != 0xa0ffff9f) + if (fs.signature != AFSV1_FOOTER_MAGIC) ret = 0; /* -- cgit v1.2.3 From d2fd05bb6769d53ab98a11b080b3fb889276049d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 15 Oct 2015 15:08:47 +0200 Subject: mtd: afs: refactor v1 partition parsing Return immediately if we are not finding a valid v1 partition in afs_read_footer_v1(), invert scanning logic so we continue to read image information on v1 if we found a footer. This is needed for the logic we introduce to parse v2 footers. Cc: Ryan Harkin Cc: Liviu Dudau Signed-off-by: Linus Walleij Signed-off-by: Brian Norris --- drivers/mtd/afs.c | 37 +++++++++++++++++-------------------- 1 file changed, 17 insertions(+), 20 deletions(-) diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index d09280ae12bd..a1eea50ce180 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -87,25 +87,23 @@ afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, return ret; } - ret = 1; - /* * Does it contain the magic number? */ if (fs.signature != AFSV1_FOOTER_MAGIC) - ret = 0; + return 0; /* * Check the checksum. */ if (word_sum(&fs, sizeof(fs) / sizeof(u32)) != 0xffffffff) - ret = 0; + return 0; /* * Don't touch the SIB. */ if (fs.type == 2) - ret = 0; + return 0; *iis_start = fs.image_info_base & mask; *img_start = fs.image_start & mask; @@ -115,16 +113,16 @@ afs_read_footer_v1(struct mtd_info *mtd, u_int *img_start, u_int *iis_start, * be located after the footer structure. */ if (*iis_start >= ptr) - ret = 0; + return 0; /* * Check the start of this image. The image * data can not be located after this block. */ if (*img_start > off) - ret = 0; + return 0; - return ret; + return 1; } static int @@ -190,18 +188,17 @@ static int parse_afs_partitions(struct mtd_info *mtd, ret = afs_read_footer_v1(mtd, &img_ptr, &iis_ptr, off, mask); if (ret < 0) break; - if (ret == 0) - continue; - - ret = afs_read_iis_v1(mtd, &iis, iis_ptr); - if (ret < 0) - break; - if (ret == 0) - continue; - - sz += sizeof(struct mtd_partition); - sz += strlen(iis.name) + 1; - idx += 1; + if (ret) { + ret = afs_read_iis_v1(mtd, &iis, iis_ptr); + if (ret < 0) + break; + if (ret == 0) + continue; + + sz += sizeof(struct mtd_partition); + sz += strlen(iis.name) + 1; + idx += 1; + } } if (!sz) -- cgit v1.2.3 From bf9c37cb627a3f690e246d9326a4a94913771bbf Mon Sep 17 00:00:00 2001 From: Bayi Cheng Date: Fri, 6 Nov 2015 23:48:07 +0800 Subject: doc: dt: mtd: add documentation for Mediatek spi-nor controller Add device tree binding documentation for serial flash with Mediatek serial flash controller Signed-off-by: Bayi Cheng Acked-by: Rob Herring [Brian: fixed up language] Signed-off-by: Brian Norris --- .../devicetree/bindings/mtd/mtk-quadspi.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mtk-quadspi.txt diff --git a/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt new file mode 100644 index 000000000000..fb314f09861b --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mtk-quadspi.txt @@ -0,0 +1,41 @@ +* Serial NOR flash controller for MTK MT81xx (and similar) + +Required properties: +- compatible: should be "mediatek,mt8173-nor"; +- reg: physical base address and length of the controller's register +- clocks: the phandle of the clocks needed by the nor controller +- clock-names: the names of the clocks + the clocks should be named "spi" and "sf". "spi" is used for spi bus, + and "sf" is used for controller, these are the clocks witch + hardware needs to enabling nor flash and nor flash controller. + See Documentation/devicetree/bindings/clock/clock-bindings.txt for details. +- #address-cells: should be <1> +- #size-cells: should be <0> + +The SPI flash must be a child of the nor_flash node and must have a +compatible property. Also see jedec,spi-nor.txt. + +Required properties: +- compatible: May include a device-specific string consisting of the manufacturer + and name of the chip. Must also include "jedec,spi-nor" for any + SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F). +- reg : Chip-Select number + +Example: + +nor_flash: spi@1100d000 { + compatible = "mediatek,mt8173-nor"; + reg = <0 0x1100d000 0 0xe0>; + clocks = <&pericfg CLK_PERI_SPI>, + <&topckgen CLK_TOP_SPINFI_IFR_SEL>; + clock-names = "spi", "sf"; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + }; +}; + -- cgit v1.2.3 From 28b8b26b308e656edfa9467867d5f79212da2ec3 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:20 -0700 Subject: mtd: add get/set of_node/flash_node helpers We are going to begin using the mtd->dev.of_node field for MTD device nodes, so let's add helpers for it. Also, we'll be making some conversions on spi_nor (and nand_chip eventually) too, so get that ready with their own helpers. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- include/linux/mtd/mtd.h | 11 +++++++++++ include/linux/mtd/nand.h | 11 +++++++++++ include/linux/mtd/spi-nor.h | 11 +++++++++++ 3 files changed, 33 insertions(+) diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index f17fa75809aa..cc84923011c0 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -254,6 +254,17 @@ struct mtd_info { int usecount; }; +static inline void mtd_set_of_node(struct mtd_info *mtd, + struct device_node *np) +{ + mtd->dev.of_node = np; +} + +static inline struct device_node *mtd_get_of_node(struct mtd_info *mtd) +{ + return mtd->dev.of_node; +} + int mtd_erase(struct mtd_info *mtd, struct erase_info *instr); int mtd_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, void **virt, resource_size_t *phys); diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 5a9d1d4c2487..4f7c9b97982f 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -719,6 +719,17 @@ struct nand_chip { void *priv; }; +static inline void nand_set_flash_node(struct nand_chip *chip, + struct device_node *np) +{ + chip->flash_node = np; +} + +static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) +{ + return chip->flash_node; +} + /* * NAND Flash Manufacturer ID Codes */ diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index c8723b62c4cd..6d991df8f986 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -185,6 +185,17 @@ struct spi_nor { void *priv; }; +static inline void spi_nor_set_flash_node(struct spi_nor *nor, + struct device_node *np) +{ + nor->flash_node = np; +} + +static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor) +{ + return nor->flash_node; +} + /** * spi_nor_scan() - scan the SPI NOR * @nor: the spi_nor structure -- cgit v1.2.3 From 3b6521eab0386a4854d47b1a01947d7dc46ec98d Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:21 -0700 Subject: mtd: ofpart: grab device tree node directly from master device node It seems more logical to use a device node directly associated with the MTD master device (i.e., mtd->dev.of_node field) rather than requiring auxiliary partition parser information to be passed in by the driver in a separate struct. This patch supports the mtd->dev.of_node field and deprecates the parser data 'of_node' field Driver conversions may now follow. Additional side benefit to assigning mtd->dev.of_node rather than using parser data: the driver core will automatically create a device -> node symlink for us. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/ofpart.c | 18 ++++++++++-------- include/linux/mtd/partitions.h | 4 +++- 2 files changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 669c3452f278..7bf996a4cf5e 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -37,10 +37,11 @@ static int parse_ofpart_partitions(struct mtd_info *master, bool dedicated = true; - if (!data) - return 0; - - mtd_node = data->of_node; + /* + * of_node can be provided through auxiliary parser data or (preferred) + * by assigning the master device node + */ + mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master); if (!mtd_node) return 0; @@ -149,10 +150,11 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, } *part; const char *names; - if (!data) - return 0; - - dp = data->of_node; + /* + * of_node can be provided through auxiliary parser data or (preferred) + * by assigning the master device node + */ + dp = data && data->of_node ? data->of_node : mtd_get_of_node(master); if (!dp) return 0; diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 6a35e6de5da1..e742f34b67eb 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -56,7 +56,9 @@ struct device_node; /** * struct mtd_part_parser_data - used to pass data to MTD partition parsers. * @origin: for RedBoot, start address of MTD device - * @of_node: for OF parsers, device node containing partitioning information + * @of_node: for OF parsers, device node containing partitioning information. + * This field is deprecated, as the device node should simply be + * assigned to the master struct device. */ struct mtd_part_parser_data { unsigned long origin; -- cgit v1.2.3 From 3e63b26bdd4069c3df2cd7ce7217a21d06801b41 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:22 -0700 Subject: mtd: {nand,spi-nor}: assign MTD of_node We should pass along our flash DT node to the MTD layer, so it can set up ofpart for us. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/nand/nand_base.c | 3 +++ drivers/mtd/spi-nor/spi-nor.c | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index cc74142938b0..939ab3d5acc2 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3990,6 +3990,9 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, int ret; if (chip->flash_node) { + /* MTD can automatically handle DT partitions, etc. */ + mtd_set_of_node(mtd, chip->flash_node); + ret = nand_dt_init(mtd, chip, chip->flash_node); if (ret) return ret; diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 49883905a434..1d3107ccee61 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1258,6 +1258,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) mtd->flags |= MTD_NO_ERASE; mtd->dev.parent = dev; + mtd_set_of_node(mtd, np); nor->page_size = info->page_size; mtd->writebufsize = nor->page_size; -- cgit v1.2.3 From 6375219951a66047805ed977b674615d152001ee Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:23 -0700 Subject: mtd: nand: convert to nand_set_flash_node() Used semantic patch with 'make coccicheck MODE=patch COCCI=script.cocci': ---8<---- virtual patch @@ struct nand_chip *c; struct device_node *d; @@ -(c)->flash_node = (d) +nand_set_flash_node(c, d) ---8<---- Signed-off-by: Brian Norris Reviewed-by: Marek Vasut Reviewed-by: Boris Brezillon --- drivers/mtd/nand/brcmnand/brcmnand.c | 2 +- drivers/mtd/nand/fsmc_nand.c | 2 +- drivers/mtd/nand/sunxi_nand.c | 2 +- drivers/mtd/nand/vf610_nfc.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 12c6190c6e33..7bd4102fde42 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1925,7 +1925,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host) mtd = &host->mtd; chip = &host->chip; - chip->flash_node = dn; + nand_set_flash_node(chip, dn); chip->priv = host; mtd->priv = chip; mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "brcmnand.%d", diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 07af3dc7a4d2..6f9e422e947e 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -1033,7 +1033,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) nand->options = pdata->options; nand->select_chip = fsmc_select_chip; nand->badblockbits = 7; - nand->flash_node = np; + nand_set_flash_node(nand, np); if (pdata->width == FSMC_NAND_BW16) nand->options |= NAND_BUSWIDTH_16; diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 824711845c44..0775ae4cf676 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1330,7 +1330,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, * in the DT. */ nand->ecc.mode = NAND_ECC_HW; - nand->flash_node = np; + nand_set_flash_node(nand, np); nand->select_chip = sunxi_nfc_select_chip; nand->cmd_ctrl = sunxi_nfc_cmd_ctrl; nand->read_buf = sunxi_nfc_read_buf; diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index 8805d6325579..7b952abf4722 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -714,7 +714,7 @@ static int vf610_nfc_probe(struct platform_device *pdev) goto error; } - chip->flash_node = child; + nand_set_flash_node(chip, child); } } -- cgit v1.2.3 From 9c7d787508be6d68a6ec66de3c3466b24e820c71 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:24 -0700 Subject: mtd: spi-nor: convert to spi_nor_{get, set}_flash_node() Used semantic patch with 'make coccicheck MODE=patch COCCI=script.cocci': ---8<---- virtual patch @@ struct spi_nor b; struct spi_nor *c; expression d; @@ ( -(b).flash_node = (d) +spi_nor_set_flash_node(&b, d) | -(c)->flash_node = (d) +spi_nor_set_flash_node(c, d) ) ---8<---- And a manual conversion for the one use of spi_nor_get_flash_node(). Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/devices/m25p80.c | 2 +- drivers/mtd/spi-nor/fsl-quadspi.c | 2 +- drivers/mtd/spi-nor/nxp-spifi.c | 2 +- drivers/mtd/spi-nor/spi-nor.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 4b5d7a4655fd..556b4554007f 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -199,7 +199,7 @@ static int m25p_probe(struct spi_device *spi) nor->read_reg = m25p80_read_reg; nor->dev = &spi->dev; - nor->flash_node = spi->dev.of_node; + spi_nor_set_flash_node(nor, spi->dev.of_node); nor->priv = flash; spi_set_drvdata(spi, flash); diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 7b10ed413983..8f4d9204d2b2 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -1013,7 +1013,7 @@ static int fsl_qspi_probe(struct platform_device *pdev) mtd = &nor->mtd; nor->dev = dev; - nor->flash_node = np; + spi_nor_set_flash_node(nor, np); nor->priv = q; /* fill the hooks */ diff --git a/drivers/mtd/spi-nor/nxp-spifi.c b/drivers/mtd/spi-nor/nxp-spifi.c index 9e82098ae644..4524b2886946 100644 --- a/drivers/mtd/spi-nor/nxp-spifi.c +++ b/drivers/mtd/spi-nor/nxp-spifi.c @@ -330,7 +330,7 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi, writel(ctrl, spifi->io_base + SPIFI_CTRL); spifi->nor.dev = spifi->dev; - spifi->nor.flash_node = np; + spi_nor_set_flash_node(&spifi->nor, np); spifi->nor.priv = spifi; spifi->nor.read = nxp_spifi_read; spifi->nor.write = nxp_spifi_write; diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 1d3107ccee61..924d455dadb5 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1151,7 +1151,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) const struct flash_info *info = NULL; struct device *dev = nor->dev; struct mtd_info *mtd = &nor->mtd; - struct device_node *np = nor->flash_node; + struct device_node *np = spi_nor_get_flash_node(nor); int ret; int i; -- cgit v1.2.3 From a61ae81a1907af1987ad4c77300508327bc48b23 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:25 -0700 Subject: mtd: nand: drop unnecessary partition parser data All of these drivers set up a parser data struct just to communicate DT partition data. This field has been deprecated and is instead supported by telling nand_scan_ident() about the 'flash_node'. This patch: * sets chip->flash_node for those drivers that didn't already (but used OF partitioning) * drops the parser data * switches to the simpler mtd_device_register() where possible, now that we've eliminated one of the auxiliary parameters Now that we've assigned chip->flash_node for these drivers, we can probably rely on nand_dt_init() to do more of the DT parsing for us, but for now, I don't want to fiddle with each of these drivers. The parsing is done in duplicate for now on some drivers. I don't think this should break things. (Famous last words.) (Rolled in some changes by Boris Brezillon) Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/nand/atmel_nand.c | 7 +++---- drivers/mtd/nand/brcmnand/brcmnand.c | 3 +-- drivers/mtd/nand/davinci_nand.c | 10 +++------- drivers/mtd/nand/fsl_elbc_nand.c | 5 ++--- drivers/mtd/nand/fsl_ifc_nand.c | 5 ++--- drivers/mtd/nand/fsl_upm.c | 5 ++--- drivers/mtd/nand/fsmc_nand.c | 7 +++---- drivers/mtd/nand/gpio.c | 8 +++----- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 5 ++--- drivers/mtd/nand/hisi504_nand.c | 5 ++--- drivers/mtd/nand/lpc32xx_mlc.c | 7 +++---- drivers/mtd/nand/lpc32xx_slc.c | 7 +++---- drivers/mtd/nand/mpc5121_nfc.c | 5 ++--- drivers/mtd/nand/mxc_nand.c | 5 ++--- drivers/mtd/nand/ndfc.c | 5 ++--- drivers/mtd/nand/omap2.c | 6 ++---- drivers/mtd/nand/orion_nand.c | 6 ++---- drivers/mtd/nand/plat_nand.c | 5 ++--- drivers/mtd/nand/pxa3xx_nand.c | 10 +++++----- drivers/mtd/nand/sh_flctl.c | 6 ++---- drivers/mtd/nand/socrates_nand.c | 5 ++--- drivers/mtd/nand/sunxi_nand.c | 4 +--- drivers/mtd/nand/vf610_nfc.c | 6 +----- drivers/staging/mt29f_spinand/mt29f_spinand.c | 5 ++--- 24 files changed, 54 insertions(+), 88 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 583cdd9bb971..6ecc1c1ab437 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -2093,7 +2093,6 @@ static int atmel_nand_probe(struct platform_device *pdev) struct mtd_info *mtd; struct nand_chip *nand_chip; struct resource *mem; - struct mtd_part_parser_data ppdata = {}; int res, irq; /* Allocate memory for the device structure (and zero it) */ @@ -2117,6 +2116,7 @@ static int atmel_nand_probe(struct platform_device *pdev) nand_chip = &host->nand_chip; host->dev = &pdev->dev; if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { + nand_set_flash_node(nand_chip, pdev->dev.of_node); /* Only when CONFIG_OF is enabled of_node can be parsed */ res = atmel_of_init_port(host, pdev->dev.of_node); if (res) @@ -2259,9 +2259,8 @@ static int atmel_nand_probe(struct platform_device *pdev) } mtd->name = "atmel_nand"; - ppdata.of_node = pdev->dev.of_node; - res = mtd_device_parse_register(mtd, NULL, &ppdata, - host->board.parts, host->board.num_parts); + res = mtd_device_register(mtd, host->board.parts, + host->board.num_parts); if (!res) return res; diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 7bd4102fde42..a37659de025c 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1914,7 +1914,6 @@ static int brcmnand_init_cs(struct brcmnand_host *host) struct nand_chip *chip; int ret; u16 cfg_offs; - struct mtd_part_parser_data ppdata = { .of_node = dn }; ret = of_property_read_u32(dn, "reg", &host->cs); if (ret) { @@ -1993,7 +1992,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host) if (nand_scan_tail(mtd)) return -ENXIO; - return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + return mtd_device_register(mtd, NULL, 0); } static void brcmnand_save_restore_cs_config(struct brcmnand_host *host, diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index c72313d66cf6..8e351af31e53 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -684,6 +684,7 @@ static int nand_davinci_probe(struct platform_device *pdev) info->mtd.priv = &info->chip; info->mtd.dev.parent = &pdev->dev; + nand_set_flash_node(&info->chip, pdev->dev.of_node); info->chip.IO_ADDR_R = vaddr; info->chip.IO_ADDR_W = vaddr; @@ -839,13 +840,8 @@ syndrome_done: if (pdata->parts) ret = mtd_device_parse_register(&info->mtd, NULL, NULL, pdata->parts, pdata->nr_parts); - else { - struct mtd_part_parser_data ppdata; - - ppdata.of_node = pdev->dev.of_node; - ret = mtd_device_parse_register(&info->mtd, NULL, &ppdata, - NULL, 0); - } + else + ret = mtd_device_register(&info->mtd, NULL, 0); if (ret < 0) goto err; diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index dcb1f7f4873f..bd6d49376382 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -748,6 +748,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) /* Fill in fsl_elbc_mtd structure */ priv->mtd.priv = chip; priv->mtd.dev.parent = priv->dev; + nand_set_flash_node(chip, priv->dev->of_node); /* set timeout to maximum */ priv->fmr = 15 << FMR_CWTO_SHIFT; @@ -823,9 +824,7 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) int bank; struct device *dev; struct device_node *node = pdev->dev.of_node; - struct mtd_part_parser_data ppdata; - ppdata.of_node = pdev->dev.of_node; if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs) return -ENODEV; lbc = fsl_lbc_ctrl_dev->regs; @@ -911,7 +910,7 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata, + mtd_device_parse_register(&priv->mtd, part_probe_types, NULL, NULL, 0); printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n", diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 7f4ac8c19001..f2608315774a 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -883,6 +883,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) /* Fill in fsl_ifc_mtd structure */ priv->mtd.priv = chip; priv->mtd.dev.parent = priv->dev; + nand_set_flash_node(chip, priv->dev->of_node); /* fill in nand_chip structure */ /* set up function call table */ @@ -1030,9 +1031,7 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) int ret; int bank; struct device_node *node = dev->dev.of_node; - struct mtd_part_parser_data ppdata; - ppdata.of_node = dev->dev.of_node; if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs) return -ENODEV; ifc = fsl_ifc_ctrl_dev->regs; @@ -1128,7 +1127,7 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata, + mtd_device_parse_register(&priv->mtd, part_probe_types, NULL, NULL, 0); dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n", diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index d326369980c4..b3f4a01621c1 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -159,7 +159,6 @@ static int fun_chip_init(struct fsl_upm_nand *fun, { int ret; struct device_node *flash_np; - struct mtd_part_parser_data ppdata; fun->chip.IO_ADDR_R = fun->io_base; fun->chip.IO_ADDR_W = fun->io_base; @@ -182,6 +181,7 @@ static int fun_chip_init(struct fsl_upm_nand *fun, if (!flash_np) return -ENODEV; + nand_set_flash_node(&fun->chip, flash_np); fun->mtd.name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start, flash_np->name); if (!fun->mtd.name) { @@ -193,8 +193,7 @@ static int fun_chip_init(struct fsl_upm_nand *fun, if (ret) goto err; - ppdata.of_node = flash_np; - ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(&fun->mtd, NULL, 0); err: of_node_put(flash_np); if (ret) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 6f9e422e947e..59fc6d0c3910 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -926,7 +926,6 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) { struct fsmc_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); struct device_node __maybe_unused *np = pdev->dev.of_node; - struct mtd_part_parser_data ppdata = {}; struct fsmc_nand_data *host; struct mtd_info *mtd; struct nand_chip *nand; @@ -1016,6 +1015,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) nand = &host->nand; mtd->priv = nand; nand->priv = host; + nand_set_flash_node(nand, np); host->mtd.dev.parent = &pdev->dev; nand->IO_ADDR_R = host->data_va; @@ -1175,9 +1175,8 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) * Check for partition info passed */ host->mtd.name = "nand"; - ppdata.of_node = np; - ret = mtd_device_parse_register(&host->mtd, NULL, &ppdata, - host->partitions, host->nr_partitions); + ret = mtd_device_register(&host->mtd, host->partitions, + host->nr_partitions); if (ret) goto err_probe; diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index 9ab97f934c37..d57a07a597be 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -209,7 +209,6 @@ static int gpio_nand_probe(struct platform_device *pdev) struct gpiomtd *gpiomtd; struct nand_chip *chip; struct resource *res; - struct mtd_part_parser_data ppdata = {}; int ret = 0; if (!pdev->dev.of_node && !dev_get_platdata(&pdev->dev)) @@ -268,6 +267,7 @@ static int gpio_nand_probe(struct platform_device *pdev) chip->dev_ready = gpio_nand_devready; } + nand_set_flash_node(chip, pdev->dev.of_node); chip->IO_ADDR_W = chip->IO_ADDR_R; chip->ecc.mode = NAND_ECC_SOFT; chip->options = gpiomtd->plat.options; @@ -291,10 +291,8 @@ static int gpio_nand_probe(struct platform_device *pdev) gpiomtd->plat.adjust_parts(&gpiomtd->plat, gpiomtd->mtd_info.size); - ppdata.of_node = pdev->dev.of_node; - ret = mtd_device_parse_register(&gpiomtd->mtd_info, NULL, &ppdata, - gpiomtd->plat.parts, - gpiomtd->plat.num_parts); + ret = mtd_device_register(&gpiomtd->mtd_info, gpiomtd->plat.parts, + gpiomtd->plat.num_parts); if (!ret) return 0; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 2064adac1d17..5a9b6966e97c 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1888,7 +1888,6 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) { struct mtd_info *mtd = &this->mtd; struct nand_chip *chip = &this->nand; - struct mtd_part_parser_data ppdata = {}; int ret; /* init current chip */ @@ -1901,6 +1900,7 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) /* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */ chip->priv = this; + nand_set_flash_node(chip, this->pdev->dev.of_node); chip->select_chip = gpmi_select_chip; chip->cmd_ctrl = gpmi_cmd_ctrl; chip->dev_ready = gpmi_dev_ready; @@ -1954,8 +1954,7 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) if (ret) goto err_out; - ppdata.of_node = this->pdev->dev.of_node; - ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret) goto err_out; return 0; diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index 0cb2e886937d..0aad4acab9d6 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -704,7 +704,6 @@ static int hisi_nfc_probe(struct platform_device *pdev) struct mtd_info *mtd; struct resource *res; struct device_node *np = dev->of_node; - struct mtd_part_parser_data ppdata; host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); if (!host) @@ -742,6 +741,7 @@ static int hisi_nfc_probe(struct platform_device *pdev) mtd->dev.parent = &pdev->dev; chip->priv = host; + nand_set_flash_node(chip, np); chip->cmdfunc = hisi_nfc_cmdfunc; chip->select_chip = hisi_nfc_select_chip; chip->read_byte = hisi_nfc_read_byte; @@ -805,8 +805,7 @@ static int hisi_nfc_probe(struct platform_device *pdev) goto err_res; } - ppdata.of_node = np; - ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(dev, "Err MTD partition=%d\n", ret); goto err_mtd; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 347510978484..57c4b712cf1a 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -647,7 +647,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) struct nand_chip *nand_chip; struct resource *rc; int res; - struct mtd_part_parser_data ppdata = {}; /* Allocate memory for the device structure (and zero it) */ host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL); @@ -682,6 +681,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) host->pdata = dev_get_platdata(&pdev->dev); nand_chip->priv = host; /* link the private data structures */ + nand_set_flash_node(nand_chip, pdev->dev.of_node); mtd->priv = nand_chip; mtd->dev.parent = &pdev->dev; @@ -786,9 +786,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) mtd->name = DRV_NAME; - ppdata.of_node = pdev->dev.of_node; - res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts, - host->ncfg->num_parts); + res = mtd_device_register(mtd, host->ncfg->parts, + host->ncfg->num_parts); if (!res) return res; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 4f3d4eb17da0..277626e46379 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -763,7 +763,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) struct mtd_info *mtd; struct nand_chip *chip; struct resource *rc; - struct mtd_part_parser_data ppdata = {}; int res; rc = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -803,6 +802,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) mtd = &host->mtd; chip = &host->nand_chip; chip->priv = host; + nand_set_flash_node(chip, pdev->dev.of_node); mtd->priv = chip; mtd->owner = THIS_MODULE; mtd->dev.parent = &pdev->dev; @@ -908,9 +908,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) } mtd->name = "nxp_lpc3220_slc"; - ppdata.of_node = pdev->dev.of_node; - res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts, - host->ncfg->num_parts); + res = mtd_device_register(mtd, host->ncfg->parts, + host->ncfg->num_parts); if (!res) return res; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index d6bbde4a5331..0fdfc42f75f8 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -639,7 +639,6 @@ static int mpc5121_nfc_probe(struct platform_device *op) int resettime = 0; int retval = 0; int rev, len; - struct mtd_part_parser_data ppdata; /* * Check SoC revision. This driver supports only NFC @@ -661,6 +660,7 @@ static int mpc5121_nfc_probe(struct platform_device *op) mtd->priv = chip; mtd->dev.parent = dev; chip->priv = prv; + nand_set_flash_node(chip, dn); prv->dev = dev; /* Read NFC configuration from Reset Config Word */ @@ -703,7 +703,6 @@ static int mpc5121_nfc_probe(struct platform_device *op) } mtd->name = "MPC5121 NAND"; - ppdata.of_node = dn; chip->dev_ready = mpc5121_nfc_dev_ready; chip->cmdfunc = mpc5121_nfc_command; chip->read_byte = mpc5121_nfc_read_byte; @@ -815,7 +814,7 @@ static int mpc5121_nfc_probe(struct platform_device *op) dev_set_drvdata(dev, mtd); /* Register device in MTD */ - retval = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + retval = mtd_device_register(mtd, NULL, 0); if (retval) { dev_err(dev, "Error adding MTD device!\n"); goto error; diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 136e73a3e07e..7922d318ebb8 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1524,6 +1524,7 @@ static int mxcnd_probe(struct platform_device *pdev) this->chip_delay = 5; this->priv = host; + nand_set_flash_node(this, pdev->dev.of_node), this->dev_ready = mxc_nand_dev_ready; this->cmdfunc = mxc_nand_command; this->read_byte = mxc_nand_read_byte; @@ -1683,9 +1684,7 @@ static int mxcnd_probe(struct platform_device *pdev) /* Register the partitions */ mtd_device_parse_register(mtd, part_probes, - &(struct mtd_part_parser_data){ - .of_node = pdev->dev.of_node, - }, + NULL, host->pdata.parts, host->pdata.nr_parts); diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 4f0d62f9d22c..69658584061b 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -147,7 +147,6 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, { struct device_node *flash_np; struct nand_chip *chip = &ndfc->chip; - struct mtd_part_parser_data ppdata; int ret; chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA; @@ -174,8 +173,8 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, flash_np = of_get_next_child(node, NULL); if (!flash_np) return -ENODEV; + nand_set_flash_node(chip, flash_np); - ppdata.of_node = flash_np; ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev), flash_np->name); if (!ndfc->mtd.name) { @@ -187,7 +186,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (ret) goto err; - ret = mtd_device_parse_register(&ndfc->mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(&ndfc->mtd, NULL, 0); err: of_node_put(flash_np); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 93f664cd1c90..e307576f300b 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1663,7 +1663,6 @@ static int omap_nand_probe(struct platform_device *pdev) unsigned sig; unsigned oob_index; struct resource *res; - struct mtd_part_parser_data ppdata = {}; pdata = dev_get_platdata(&pdev->dev); if (pdata == NULL) { @@ -1688,6 +1687,7 @@ static int omap_nand_probe(struct platform_device *pdev) mtd->dev.parent = &pdev->dev; nand_chip = &info->nand; nand_chip->ecc.priv = NULL; + nand_set_flash_node(nand_chip, pdata->of_node); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); nand_chip->IO_ADDR_R = devm_ioremap_resource(&pdev->dev, res); @@ -2037,9 +2037,7 @@ scan_tail: goto return_error; } - ppdata.of_node = pdata->of_node; - mtd_device_parse_register(mtd, NULL, &ppdata, pdata->parts, - pdata->nr_parts); + mtd_device_register(mtd, pdata->parts, pdata->nr_parts); platform_set_drvdata(pdev, mtd); diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index ee83749fb1d3..5c214161244a 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -76,7 +76,6 @@ static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static int __init orion_nand_probe(struct platform_device *pdev) { struct mtd_info *mtd; - struct mtd_part_parser_data ppdata = {}; struct nand_chip *nc; struct orion_nand_data *board; struct resource *res; @@ -127,6 +126,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) mtd->dev.parent = &pdev->dev; nc->priv = board; + nand_set_flash_node(nc, pdev->dev.of_node); nc->IO_ADDR_R = nc->IO_ADDR_W = io_base; nc->cmd_ctrl = orion_nand_cmd_ctrl; nc->read_buf = orion_nand_read_buf; @@ -161,9 +161,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd->name = "orion_nand"; - ppdata.of_node = pdev->dev.of_node; - ret = mtd_device_parse_register(mtd, NULL, &ppdata, - board->parts, board->nr_parts); + ret = mtd_device_register(mtd, board->parts, board->nr_parts); if (ret) { nand_release(mtd); goto no_dev; diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 65b9dbbe6d6a..06ac6c64dcd5 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -30,7 +30,6 @@ struct plat_nand_data { static int plat_nand_probe(struct platform_device *pdev) { struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - struct mtd_part_parser_data ppdata; struct plat_nand_data *data; struct resource *res; const char **part_types; @@ -58,6 +57,7 @@ static int plat_nand_probe(struct platform_device *pdev) return PTR_ERR(data->io_base); data->chip.priv = &data; + nand_set_flash_node(&data->chip, pdev->dev.of_node); data->mtd.priv = &data->chip; data->mtd.dev.parent = &pdev->dev; @@ -94,8 +94,7 @@ static int plat_nand_probe(struct platform_device *pdev) part_types = pdata->chip.part_probe_types; - ppdata.of_node = pdev->dev.of_node; - err = mtd_device_parse_register(&data->mtd, part_types, &ppdata, + err = mtd_device_parse_register(&data->mtd, part_types, NULL, pdata->chip.partitions, pdata->chip.nr_partitions); diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index e453ae9a17fa..37df51df422e 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1697,6 +1697,7 @@ KEEP_CONFIG: static int alloc_nand_resource(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; struct pxa3xx_nand_host *host; @@ -1725,6 +1726,8 @@ static int alloc_nand_resource(struct platform_device *pdev) host->info_data = info; mtd->priv = host; mtd->dev.parent = &pdev->dev; + /* FIXME: all chips use the same device tree partitions */ + nand_set_flash_node(chip, np); chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; @@ -1886,7 +1889,6 @@ static int pxa3xx_nand_probe_dt(struct platform_device *pdev) static int pxa3xx_nand_probe(struct platform_device *pdev) { struct pxa3xx_nand_platform_data *pdata; - struct mtd_part_parser_data ppdata = {}; struct pxa3xx_nand_info *info; int ret, cs, probe_success, dma_available; @@ -1933,10 +1935,8 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) continue; } - ppdata.of_node = pdev->dev.of_node; - ret = mtd_device_parse_register(mtd, NULL, - &ppdata, pdata->parts[cs], - pdata->nr_parts[cs]); + ret = mtd_device_register(mtd, pdata->parts[cs], + pdata->nr_parts[cs]); if (!ret) probe_success = 1; } diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index bcba1a924c75..57dc52578e07 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -1086,7 +1086,6 @@ static int flctl_probe(struct platform_device *pdev) struct sh_flctl_platform_data *pdata; int ret; int irq; - struct mtd_part_parser_data ppdata = {}; flctl = devm_kzalloc(&pdev->dev, sizeof(struct sh_flctl), GFP_KERNEL); if (!flctl) @@ -1123,6 +1122,7 @@ static int flctl_probe(struct platform_device *pdev) platform_set_drvdata(pdev, flctl); flctl_mtd = &flctl->mtd; nand = &flctl->chip; + nand_set_flash_node(nand, pdev->dev.of_node); flctl_mtd->priv = nand; flctl_mtd->dev.parent = &pdev->dev; flctl->pdev = pdev; @@ -1163,9 +1163,7 @@ static int flctl_probe(struct platform_device *pdev) if (ret) goto err_chip; - ppdata.of_node = pdev->dev.of_node; - ret = mtd_device_parse_register(flctl_mtd, NULL, &ppdata, pdata->parts, - pdata->nr_parts); + ret = mtd_device_register(flctl_mtd, pdata->parts, pdata->nr_parts); return 0; diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index b94f53427f0f..bde40433b4d9 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -147,7 +147,6 @@ static int socrates_nand_probe(struct platform_device *ofdev) struct mtd_info *mtd; struct nand_chip *nand_chip; int res; - struct mtd_part_parser_data ppdata; /* Allocate memory for the device structure (and zero it) */ host = devm_kzalloc(&ofdev->dev, sizeof(*host), GFP_KERNEL); @@ -165,10 +164,10 @@ static int socrates_nand_probe(struct platform_device *ofdev) host->dev = &ofdev->dev; nand_chip->priv = host; /* link the private data structures */ + nand_set_flash_node(nand_chip, ofdev->dev.of_node); mtd->priv = nand_chip; mtd->name = "socrates_nand"; mtd->dev.parent = &ofdev->dev; - ppdata.of_node = ofdev->dev.of_node; /*should never be accessed directly */ nand_chip->IO_ADDR_R = (void *)0xdeadbeef; @@ -200,7 +199,7 @@ static int socrates_nand_probe(struct platform_device *ofdev) goto out; } - res = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + res = mtd_device_register(mtd, NULL, 0); if (!res) return res; diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 0775ae4cf676..2ed52e466ea6 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1232,7 +1232,6 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, { const struct nand_sdr_timings *timings; struct sunxi_nand_chip *chip; - struct mtd_part_parser_data ppdata; struct mtd_info *mtd; struct nand_chip *nand; int nsels; @@ -1366,8 +1365,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, return ret; } - ppdata.of_node = np; - ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(dev, "failed to register mtd device: %d\n", ret); nand_release(mtd); diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index 7b952abf4722..b6df4c6d60ca 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -811,11 +811,7 @@ static int vf610_nfc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, mtd); /* Register device in MTD */ - return mtd_device_parse_register(mtd, NULL, - &(struct mtd_part_parser_data){ - .of_node = chip->flash_node, - }, - NULL, 0); + return mtd_device_register(mtd, NULL, 0); error: of_node_put(chip->flash_node); diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index 405b643189fd..49807de7d91e 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -853,7 +853,6 @@ static int spinand_probe(struct spi_device *spi_nand) struct nand_chip *chip; struct spinand_info *info; struct spinand_state *state; - struct mtd_part_parser_data ppdata; info = devm_kzalloc(&spi_nand->dev, sizeof(struct spinand_info), GFP_KERNEL); @@ -897,6 +896,7 @@ static int spinand_probe(struct spi_device *spi_nand) pr_info("%s: disable ecc failed!\n", __func__); #endif + nand_set_flash_node(chip, spi_nand->dev.of_node); chip->priv = info; chip->read_buf = spinand_read_buf; chip->write_buf = spinand_write_buf; @@ -919,8 +919,7 @@ static int spinand_probe(struct spi_device *spi_nand) if (nand_scan(mtd, 1)) return -ENXIO; - ppdata.of_node = spi_nand->dev.of_node; - return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + return mtd_device_register(mtd, NULL, 0); } /* -- cgit v1.2.3 From df02c885f8697546da41665f28dde5e30ce99674 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:26 -0700 Subject: mtd: spi-nor: drop unnecessary partition parser data Now that the SPI-NOR/MTD framework pass the 'flash_node' through to the partition parsing code, we don't have to do it ourselves. Also convert to mtd_device_register(), since we don't need the 2nd and 3rd parameters anymore. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/devices/m25p80.c | 8 ++------ drivers/mtd/spi-nor/fsl-quadspi.c | 4 +--- drivers/mtd/spi-nor/nxp-spifi.c | 4 +--- 3 files changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 556b4554007f..6dbf7832e77a 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -175,7 +175,6 @@ static int m25p80_erase(struct spi_nor *nor, loff_t offset) */ static int m25p_probe(struct spi_device *spi) { - struct mtd_part_parser_data ppdata; struct flash_platform_data *data; struct m25p *flash; struct spi_nor *nor; @@ -227,11 +226,8 @@ static int m25p_probe(struct spi_device *spi) if (ret) return ret; - ppdata.of_node = spi->dev.of_node; - - return mtd_device_parse_register(&nor->mtd, NULL, &ppdata, - data ? data->parts : NULL, - data ? data->nr_parts : 0); + return mtd_device_register(&nor->mtd, data ? data->parts : NULL, + data ? data->nr_parts : 0); } diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 8f4d9204d2b2..9e7f657af6a5 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -927,7 +927,6 @@ static void fsl_qspi_unprep(struct spi_nor *nor, enum spi_nor_ops ops) static int fsl_qspi_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct mtd_part_parser_data ppdata; struct device *dev = &pdev->dev; struct fsl_qspi *q; struct resource *res; @@ -1038,8 +1037,7 @@ static int fsl_qspi_probe(struct platform_device *pdev) if (ret) goto mutex_failed; - ppdata.of_node = np; - ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret) goto mutex_failed; diff --git a/drivers/mtd/spi-nor/nxp-spifi.c b/drivers/mtd/spi-nor/nxp-spifi.c index 4524b2886946..ae428cb0e04b 100644 --- a/drivers/mtd/spi-nor/nxp-spifi.c +++ b/drivers/mtd/spi-nor/nxp-spifi.c @@ -271,7 +271,6 @@ static void nxp_spifi_dummy_id_read(struct spi_nor *nor) static int nxp_spifi_setup_flash(struct nxp_spifi *spifi, struct device_node *np) { - struct mtd_part_parser_data ppdata; enum read_mode flash_read; u32 ctrl, property; u16 mode = 0; @@ -361,8 +360,7 @@ static int nxp_spifi_setup_flash(struct nxp_spifi *spifi, return ret; } - ppdata.of_node = np; - ret = mtd_device_parse_register(&spifi->nor.mtd, NULL, &ppdata, NULL, 0); + ret = mtd_device_register(&spifi->nor.mtd, NULL, 0); if (ret) { dev_err(spifi->dev, "mtd device parse failed\n"); return ret; -- cgit v1.2.3 From 30069af7348b56eb8c5e1dda7788a531c5f24ca2 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:27 -0700 Subject: mtd: spi-nor: drop flash_node field We can just alias to the MTD of_node. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/spi-nor/spi-nor.c | 1 - include/linux/mtd/spi-nor.h | 6 ++---- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 924d455dadb5..12041e181630 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -1258,7 +1258,6 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) mtd->flags |= MTD_NO_ERASE; mtd->dev.parent = dev; - mtd_set_of_node(mtd, np); nor->page_size = info->page_size; mtd->writebufsize = nor->page_size; diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 6d991df8f986..955f268d159a 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -124,7 +124,6 @@ struct mtd_info; * @mtd: point to a mtd_info structure * @lock: the lock for the read/write/erase/lock/unlock operations * @dev: point to a spi device, or a spi nor controller device. - * @flash_node: point to a device node describing this flash instance. * @page_size: the page size of the SPI NOR * @addr_width: number of address bytes * @erase_opcode: the opcode for erasing a sector @@ -155,7 +154,6 @@ struct spi_nor { struct mtd_info mtd; struct mutex lock; struct device *dev; - struct device_node *flash_node; u32 page_size; u8 addr_width; u8 erase_opcode; @@ -188,12 +186,12 @@ struct spi_nor { static inline void spi_nor_set_flash_node(struct spi_nor *nor, struct device_node *np) { - nor->flash_node = np; + mtd_set_of_node(&nor->mtd, np); } static inline struct device_node *spi_nor_get_flash_node(struct spi_nor *nor) { - return nor->flash_node; + return mtd_get_of_node(&nor->mtd); } /** -- cgit v1.2.3 From 004b5e6031f4e9fd90d565fb213b74cd06d03718 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:28 -0700 Subject: mtd: drop unnecessary partition parser data We should assign the MTD dev.of_node instead of the parser data field. This gets us the equivalent partition parser behavior with fewer special fields and parameter passing. Also convert several of these to mtd_device_register(), since we don't need the 2nd and 3rd parameters anymore. Signed-off-by: Brian Norris Reviewed-by: Marek Vasut Reviewed-by: Boris Brezillon --- drivers/mtd/devices/mtd_dataflash.c | 5 ++--- drivers/mtd/devices/spear_smi.c | 6 ++---- drivers/mtd/devices/st_spi_fsm.c | 5 ++--- drivers/mtd/maps/lantiq-flash.c | 5 ++--- drivers/mtd/maps/physmap_of.c | 5 ++--- drivers/mtd/onenand/omap2.c | 8 +++----- 6 files changed, 13 insertions(+), 21 deletions(-) diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 39666d552682..0ada3ed6c23f 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -624,7 +624,6 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages, { struct dataflash *priv; struct mtd_info *device; - struct mtd_part_parser_data ppdata; struct flash_platform_data *pdata = dev_get_platdata(&spi->dev); char *otp_tag = ""; int err = 0; @@ -656,6 +655,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages, device->priv = priv; device->dev.parent = &spi->dev; + mtd_set_of_node(device, spi->dev.of_node); if (revision >= 'c') otp_tag = otp_setup(device, revision); @@ -665,8 +665,7 @@ static int add_dataflash_otp(struct spi_device *spi, char *name, int nr_pages, pagesize, otp_tag); spi_set_drvdata(spi, priv); - ppdata.of_node = spi->dev.of_node; - err = mtd_device_parse_register(device, NULL, &ppdata, + err = mtd_device_register(device, pdata ? pdata->parts : NULL, pdata ? pdata->nr_parts : 0); diff --git a/drivers/mtd/devices/spear_smi.c b/drivers/mtd/devices/spear_smi.c index 64c7458344d4..dd5069876537 100644 --- a/drivers/mtd/devices/spear_smi.c +++ b/drivers/mtd/devices/spear_smi.c @@ -810,7 +810,6 @@ static int spear_smi_setup_banks(struct platform_device *pdev, u32 bank, struct device_node *np) { struct spear_smi *dev = platform_get_drvdata(pdev); - struct mtd_part_parser_data ppdata = {}; struct spear_smi_flash_info *flash_info; struct spear_smi_plat_data *pdata; struct spear_snor_flash *flash; @@ -855,6 +854,7 @@ static int spear_smi_setup_banks(struct platform_device *pdev, flash->mtd.name = flash_devices[flash_index].name; flash->mtd.dev.parent = &pdev->dev; + mtd_set_of_node(&flash->mtd, np); flash->mtd.type = MTD_NORFLASH; flash->mtd.writesize = 1; flash->mtd.flags = MTD_CAP_NORFLASH; @@ -881,10 +881,8 @@ static int spear_smi_setup_banks(struct platform_device *pdev, count = flash_info->nr_partitions; } #endif - ppdata.of_node = np; - ret = mtd_device_parse_register(&flash->mtd, NULL, &ppdata, parts, - count); + ret = mtd_device_register(&flash->mtd, parts, count); if (ret) { dev_err(&dev->pdev->dev, "Err MTD partition=%d\n", ret); return ret; diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c index 3060025c8af4..5454b4113589 100644 --- a/drivers/mtd/devices/st_spi_fsm.c +++ b/drivers/mtd/devices/st_spi_fsm.c @@ -2025,7 +2025,6 @@ boot_device_fail: static int stfsm_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - struct mtd_part_parser_data ppdata; struct flash_info *info; struct resource *res; struct stfsm *fsm; @@ -2035,7 +2034,6 @@ static int stfsm_probe(struct platform_device *pdev) dev_err(&pdev->dev, "No DT found\n"); return -EINVAL; } - ppdata.of_node = np; fsm = devm_kzalloc(&pdev->dev, sizeof(*fsm), GFP_KERNEL); if (!fsm) @@ -2106,6 +2104,7 @@ static int stfsm_probe(struct platform_device *pdev) fsm->mtd.name = info->name; fsm->mtd.dev.parent = &pdev->dev; + mtd_set_of_node(&fsm->mtd, np); fsm->mtd.type = MTD_NORFLASH; fsm->mtd.writesize = 4; fsm->mtd.writebufsize = fsm->mtd.writesize; @@ -2124,7 +2123,7 @@ static int stfsm_probe(struct platform_device *pdev) (long long)fsm->mtd.size, (long long)(fsm->mtd.size >> 20), fsm->mtd.erasesize, (fsm->mtd.erasesize >> 10)); - return mtd_device_parse_register(&fsm->mtd, NULL, &ppdata, NULL, 0); + return mtd_device_register(&fsm->mtd, NULL, 0); } static int stfsm_remove(struct platform_device *pdev) diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 93852054977e..c8febb326fa6 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -110,7 +110,6 @@ ltq_copy_to(struct map_info *map, unsigned long to, static int ltq_mtd_probe(struct platform_device *pdev) { - struct mtd_part_parser_data ppdata; struct ltq_mtd *ltq_mtd; struct cfi_private *cfi; int err; @@ -161,13 +160,13 @@ ltq_mtd_probe(struct platform_device *pdev) } ltq_mtd->mtd->dev.parent = &pdev->dev; + mtd_set_of_node(ltq_mtd->mtd, pdev->dev.of_node); cfi = ltq_mtd->map->fldrv_priv; cfi->addr_unlock1 ^= 1; cfi->addr_unlock2 ^= 1; - ppdata.of_node = pdev->dev.of_node; - err = mtd_device_parse_register(ltq_mtd->mtd, NULL, &ppdata, NULL, 0); + err = mtd_device_register(ltq_mtd->mtd, NULL, 0); if (err) { dev_err(&pdev->dev, "failed to add partitions\n"); goto err_destroy; diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index e46b4e983666..b78265688075 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -166,7 +166,6 @@ static int of_flash_probe(struct platform_device *dev) int reg_tuple_size; struct mtd_info **mtd_list = NULL; resource_size_t res_size; - struct mtd_part_parser_data ppdata; bool map_indirect; const char *mtd_name = NULL; @@ -310,13 +309,13 @@ static int of_flash_probe(struct platform_device *dev) if (err) goto err_out; - ppdata.of_node = dp; + mtd_set_of_node(info->cmtd, dp); part_probe_types = of_get_probes(dp); if (!part_probe_types) { err = -ENOMEM; goto err_out; } - mtd_device_parse_register(info->cmtd, part_probe_types, &ppdata, + mtd_device_parse_register(info->cmtd, part_probe_types, NULL, NULL, 0); of_free_probes(part_probe_types); diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 3e0285696227..0aacf125938b 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -614,7 +614,6 @@ static int omap2_onenand_probe(struct platform_device *pdev) struct onenand_chip *this; int r; struct resource *res; - struct mtd_part_parser_data ppdata = {}; pdata = dev_get_platdata(&pdev->dev); if (pdata == NULL) { @@ -713,6 +712,7 @@ static int omap2_onenand_probe(struct platform_device *pdev) c->mtd.priv = &c->onenand; c->mtd.dev.parent = &pdev->dev; + mtd_set_of_node(&c->mtd, pdata->of_node); this = &c->onenand; if (c->dma_channel >= 0) { @@ -743,10 +743,8 @@ static int omap2_onenand_probe(struct platform_device *pdev) if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; - ppdata.of_node = pdata->of_node; - r = mtd_device_parse_register(&c->mtd, NULL, &ppdata, - pdata ? pdata->parts : NULL, - pdata ? pdata->nr_parts : 0); + r = mtd_device_register(&c->mtd, pdata ? pdata->parts : NULL, + pdata ? pdata->nr_parts : 0); if (r) goto err_release_onenand; -- cgit v1.2.3 From e270bca531b40cd0a143176eb093d173b9c6f418 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:29 -0700 Subject: mtd: ofpart: drop 'of_node' partition parser data This field is no longer used anywhere, as it is superseded by mtd->dev.of_node. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/ofpart.c | 14 ++++---------- include/linux/mtd/partitions.h | 4 ---- 2 files changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 7bf996a4cf5e..f78d2aea5545 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -37,11 +37,8 @@ static int parse_ofpart_partitions(struct mtd_info *master, bool dedicated = true; - /* - * of_node can be provided through auxiliary parser data or (preferred) - * by assigning the master device node - */ - mtd_node = data && data->of_node ? data->of_node : mtd_get_of_node(master); + /* Pull of_node from the master device node */ + mtd_node = mtd_get_of_node(master); if (!mtd_node) return 0; @@ -150,11 +147,8 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, } *part; const char *names; - /* - * of_node can be provided through auxiliary parser data or (preferred) - * by assigning the master device node - */ - dp = data && data->of_node ? data->of_node : mtd_get_of_node(master); + /* Pull of_node from the master device node */ + dp = mtd_get_of_node(master); if (!dp) return 0; diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index e742f34b67eb..773975a3c9e6 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -56,13 +56,9 @@ struct device_node; /** * struct mtd_part_parser_data - used to pass data to MTD partition parsers. * @origin: for RedBoot, start address of MTD device - * @of_node: for OF parsers, device node containing partitioning information. - * This field is deprecated, as the device node should simply be - * assigned to the master struct device. */ struct mtd_part_parser_data { unsigned long origin; - struct device_node *of_node; }; -- cgit v1.2.3 From 8361a9b8cb6a9c71b7cf884a87b2532d8367c185 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 20:33:30 -0700 Subject: mtd: physmap_of: assign parent for the concatenated MTD If there is more than one map region for this device, then the concatenated MTD will not have a parent device assigned to it -- only the sub-devices (which are not actually registered with the framework) will have their parents assigned. Let's assign the concatenated device correctly. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/maps/physmap_of.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index b78265688075..70c453144f00 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -309,6 +309,7 @@ static int of_flash_probe(struct platform_device *dev) if (err) goto err_out; + info->cmtd->dev.parent = &dev->dev; mtd_set_of_node(info->cmtd, dp); part_probe_types = of_get_probes(dp); if (!part_probe_types) { -- cgit v1.2.3 From 44ec23c9ecd95d13ec9dd8d0b0dc9e82bd3258ff Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 2 Nov 2015 00:03:38 +0100 Subject: mtd: nand: convert to nand_get_flash_node() Used semantic patch with 'make coccicheck MODE=patch COCCI=script.cocci': ---8<---- virtual patch @@ struct nand_chip c; struct nand_chip *cp; @@ ( -(cp)->flash_node +nand_get_flash_node(cp) | -(c).flash_node +nand_get_flash_node(&c) ) ---8<---- Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 2 +- drivers/mtd/nand/nand_base.c | 6 +++--- drivers/mtd/nand/vf610_nfc.c | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index a37659de025c..2a437c7ed175 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1816,7 +1816,7 @@ static int brcmnand_setup_dev(struct brcmnand_host *host) memset(cfg, 0, sizeof(*cfg)); - ret = of_property_read_u32(chip->flash_node, + ret = of_property_read_u32(nand_get_flash_node(chip), "brcm,nand-oob-sector-size", &oob_sector); if (ret) { diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 939ab3d5acc2..4ac4efe65c62 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3989,11 +3989,11 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, struct nand_flash_dev *type; int ret; - if (chip->flash_node) { + if (nand_get_flash_node(chip)) { /* MTD can automatically handle DT partitions, etc. */ - mtd_set_of_node(mtd, chip->flash_node); + mtd_set_of_node(mtd, nand_get_flash_node(chip)); - ret = nand_dt_init(mtd, chip, chip->flash_node); + ret = nand_dt_init(mtd, chip, nand_get_flash_node(chip)); if (ret) return ret; } diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index b6df4c6d60ca..1c86c6b42515 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -707,7 +707,7 @@ static int vf610_nfc_probe(struct platform_device *pdev) for_each_available_child_of_node(nfc->dev->of_node, child) { if (of_device_is_compatible(child, "fsl,vf610-nfc-nandcs")) { - if (chip->flash_node) { + if (nand_get_flash_node(chip)) { dev_err(nfc->dev, "Only one NAND chip supported!\n"); err = -EINVAL; @@ -718,7 +718,7 @@ static int vf610_nfc_probe(struct platform_device *pdev) } } - if (!chip->flash_node) { + if (!nand_get_flash_node(chip)) { dev_err(nfc->dev, "NAND chip sub-node missing!\n"); err = -ENODEV; goto err_clk; @@ -814,7 +814,7 @@ static int vf610_nfc_probe(struct platform_device *pdev) return mtd_device_register(mtd, NULL, 0); error: - of_node_put(chip->flash_node); + of_node_put(nand_get_flash_node(chip)); err_clk: clk_disable_unprepare(nfc->clk); return err; -- cgit v1.2.3 From 215a02fd30871d0d888d27a3154588b66f5dbec2 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 11 Nov 2015 16:26:04 -0800 Subject: mtd: grab a reference to the MTD of_node before registering it We now stick the device node representing the current MTD (if any) into sysfs, so let's make sure we have a reference to it before doing that. Suggested-by: Boris Brezillon Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/mtdcore.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index a91cee90aef9..c393a1155376 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include #include @@ -454,6 +455,7 @@ int add_mtd_device(struct mtd_info *mtd) mtd->dev.devt = MTD_DEVT(i); dev_set_name(&mtd->dev, "mtd%d", i); dev_set_drvdata(&mtd->dev, mtd); + of_node_get(mtd_get_of_node(mtd)); error = device_register(&mtd->dev); if (error) goto fail_added; @@ -476,6 +478,7 @@ int add_mtd_device(struct mtd_info *mtd) return 0; fail_added: + of_node_put(mtd_get_of_node(mtd)); idr_remove(&mtd_idr, i); fail_locked: mutex_unlock(&mtd_table_mutex); @@ -517,6 +520,7 @@ int del_mtd_device(struct mtd_info *mtd) device_unregister(&mtd->dev); idr_remove(&mtd_idr, mtd->index); + of_node_put(mtd_get_of_node(mtd)); module_put(THIS_MODULE); ret = 0; -- cgit v1.2.3 From 938672338991ac8bef5cb025b187ab8d6230ac6c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 11 Nov 2015 16:47:52 -0800 Subject: mtd: zero out mtd_partition struct before using it It's easier to guarantee we've cleared out all unused fields with memset() than by manually initializing each field. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/mtdpart.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index f8ba153f63bf..46dfbf5629c3 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -596,11 +596,10 @@ int mtd_add_partition(struct mtd_info *master, const char *name, if (length <= 0) return -EINVAL; + memset(&part, 0, sizeof(part)); part.name = name; part.size = length; part.offset = offset; - part.mask_flags = 0; - part.ecclayout = NULL; new = allocate_partition(master, &part, -1, offset); if (IS_ERR(new)) -- cgit v1.2.3 From 26add94cd535d1e000e7871fe69c7bb89e942d67 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 11 Nov 2015 17:05:56 -0800 Subject: mtd: partitions: kill unused ecclayout struct This field is not used. Reported here: http://lists.infradead.org/pipermail/linux-mtd/2015-October/062417.html Reported-by: Brian Foster Cc: Brian Foster Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- include/linux/mtd/partitions.h | 1 - 1 file changed, 1 deletion(-) diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 773975a3c9e6..8421520c10eb 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -41,7 +41,6 @@ struct mtd_partition { uint64_t size; /* partition size */ uint64_t offset; /* offset within the master MTD space */ uint32_t mask_flags; /* master MTD flags to mask out for this partition */ - struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only) */ }; #define MTDPART_OFS_RETAIN (-3) -- cgit v1.2.3 From c7f00c29aa846b00c70bc99ddb6b1cc7e17c47d4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:41 -0300 Subject: mtd: pxa3xx_nand: Increase the initial chunk size The chunk size represents the size of the data chunks, which is used by the controllers that allow to split transfered data. However, the initial chunk size is used in a non-splitted way, during device identification. Therefore, it must be large enough for all the NAND commands issued during device identification. This includes NAND_CMD_PARAM which was recently changed to transfer up to 2048 bytes (for the redundant parameter pages). Thus, the initial chunk size should be 2048 as well. On Armada 370/XP platforms (NFCv2) booted without the keep-config devicetree property, this commit fixes a timeout on the NAND_CMD_PARAM command: [..] pxa3xx-nand f10d0000.nand: This platform can't do DMA on this device pxa3xx-nand f10d0000.nand: Wait time out!!! nand: device found, Manufacturer ID: 0x2c, Chip ID: 0x38 nand: Micron MT29F8G08ABABAWP nand: 1024 MiB, SLC, erase size: 512 KiB, page size: 4096, OOB size: 224 Signed-off-by: Ezequiel Garcia Acked-by: Robert Jarzmik Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 37df51df422e..d3da5ef5faa4 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1592,7 +1592,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) goto KEEP_CONFIG; /* Set a default chunk size */ - info->chunk_size = 512; + info->chunk_size = PAGE_CHUNK_SIZE; ret = pxa3xx_nand_config_flash(info); if (ret) -- cgit v1.2.3 From 66e8e47eae658dc884e65695a597fdda7a109448 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:42 -0300 Subject: mtd: pxa3xx_nand: Fix initial controller configuration The Data Flash Control Register (NDCR) contains two types of parameters: those that are needed for device identification, and those that can only be set after device identification. Therefore, the driver can't set them all at once and instead needs to configure the first group before nand_scan_ident() and the second group later. Let's split pxa3xx_nand_config in two halves, and set the parameters that depend on the device geometry once this is known. Signed-off-by: Ezequiel Garcia Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 35 ++++++++++++++++++++++------------- 1 file changed, 22 insertions(+), 13 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index d3da5ef5faa4..54512ce25443 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1387,34 +1387,43 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) return NAND_STATUS_READY; } -static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info) +static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info) { struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); - struct pxa3xx_nand_host *host = info->host[info->cs]; - struct mtd_info *mtd = host->mtd; - struct nand_chip *chip = mtd->priv; - /* configure default flash values */ + /* Configure default flash values */ + info->chunk_size = PAGE_CHUNK_SIZE; info->reg_ndcr = 0x0; /* enable all interrupts */ info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0; info->reg_ndcr |= NDCR_RD_ID_CNT(READ_ID_BYTES); - info->reg_ndcr |= NDCR_SPARE_EN; /* enable spare by default */ + info->reg_ndcr |= NDCR_SPARE_EN; + + return 0; +} + +static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info) +{ + struct pxa3xx_nand_host *host = info->host[info->cs]; + struct mtd_info *mtd = host->mtd; + struct nand_chip *chip = mtd->priv; + info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0; info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0; info->reg_ndcr |= (mtd->writesize == 2048) ? NDCR_PAGE_SZ : 0; - - return 0; } static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) { + struct platform_device *pdev = info->pdev; + struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); uint32_t ndcr = nand_readl(info, NDCR); /* Set an initial chunk size */ info->chunk_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; info->reg_ndcr = ndcr & ~(NDCR_INT_MASK | NDCR_ND_ARB_EN | NFCV1_NDCR_ARB_CNTL); + info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0; info->ndtr0cs0 = nand_readl(info, NDTR0CS0); info->ndtr1cs0 = nand_readl(info, NDTR1CS0); return 0; @@ -1591,10 +1600,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) if (pdata->keep_config && !pxa3xx_nand_detect_config(info)) goto KEEP_CONFIG; - /* Set a default chunk size */ - info->chunk_size = PAGE_CHUNK_SIZE; - - ret = pxa3xx_nand_config_flash(info); + ret = pxa3xx_nand_config_ident(info); if (ret) return ret; @@ -1607,7 +1613,6 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) } KEEP_CONFIG: - info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0; if (info->reg_ndcr & NDCR_DWIDTH_M) chip->options |= NAND_BUSWIDTH_16; @@ -1692,6 +1697,10 @@ KEEP_CONFIG: host->row_addr_cycles = 3; else host->row_addr_cycles = 2; + + if (!pdata->keep_config) + pxa3xx_nand_config_tail(info); + return nand_scan_tail(mtd); } -- cgit v1.2.3 From 154f50fbde539c20bbf74854461d932ebdace4d5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:43 -0300 Subject: mtd: pxa3xx_nand: Simplify pxa3xx_nand_scan This commit simplifies the initial configuration performed by pxa3xx_nand_scan. No functionality change is intended. Signed-off-by: Ezequiel Garcia Acked-by: Robert Jarzmik Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 54512ce25443..002f1cc75543 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1413,7 +1413,7 @@ static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info) info->reg_ndcr |= (mtd->writesize == 2048) ? NDCR_PAGE_SZ : 0; } -static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) +static void pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) { struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -1426,7 +1426,6 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) info->reg_ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0; info->ndtr0cs0 = nand_readl(info, NDTR0CS0); info->ndtr1cs0 = nand_readl(info, NDTR1CS0); - return 0; } static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) @@ -1597,22 +1596,21 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) int ret; uint16_t ecc_strength, ecc_step; - if (pdata->keep_config && !pxa3xx_nand_detect_config(info)) - goto KEEP_CONFIG; - - ret = pxa3xx_nand_config_ident(info); - if (ret) - return ret; - - ret = pxa3xx_nand_sensing(host); - if (ret) { - dev_info(&info->pdev->dev, "There is no chip on cs %d!\n", - info->cs); - - return ret; + if (pdata->keep_config) { + pxa3xx_nand_detect_config(info); + } else { + ret = pxa3xx_nand_config_ident(info); + if (ret) + return ret; + ret = pxa3xx_nand_sensing(host); + if (ret) { + dev_info(&info->pdev->dev, + "There is no chip on cs %d!\n", + info->cs); + return ret; + } } -KEEP_CONFIG: if (info->reg_ndcr & NDCR_DWIDTH_M) chip->options |= NAND_BUSWIDTH_16; -- cgit v1.2.3 From b1e485779c06d3e43a1818f1065874dd2504b5ef Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:44 -0300 Subject: mtd: pxa3xx_nand: Remove redundant NAND sensing Currently, the driver is trying to detect the presence of a chip by issuing a RESET command before nand_scan_ident. This seems completely redundant, and is also a layering violation as nand_scan_ident is in charge of device detection. This commit removes the RESET command use, and moves the initial timing configuration to pxa3xx_nand_config_ident. Signed-off-by: Ezequiel Garcia Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 41 ++++++++--------------------------------- 1 file changed, 8 insertions(+), 33 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 002f1cc75543..bf1b2ac0e425 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1389,8 +1389,10 @@ static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info) { + struct pxa3xx_nand_host *host = info->host[info->cs]; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); + const struct nand_sdr_timings *timings; /* Configure default flash values */ info->chunk_size = PAGE_CHUNK_SIZE; @@ -1399,6 +1401,12 @@ static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info) info->reg_ndcr |= NDCR_RD_ID_CNT(READ_ID_BYTES); info->reg_ndcr |= NDCR_SPARE_EN; + /* use the common timing to make a try */ + timings = onfi_async_timing_mode_to_sdr_timings(0); + if (IS_ERR(timings)) + return PTR_ERR(timings); + + pxa3xx_nand_set_sdr_timing(host, timings); return 0; } @@ -1491,32 +1499,6 @@ static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info) kfree(info->data_buff); } -static int pxa3xx_nand_sensing(struct pxa3xx_nand_host *host) -{ - struct pxa3xx_nand_info *info = host->info_data; - struct mtd_info *mtd; - struct nand_chip *chip; - const struct nand_sdr_timings *timings; - int ret; - - mtd = info->host[info->cs]->mtd; - chip = mtd->priv; - - /* use the common timing to make a try */ - timings = onfi_async_timing_mode_to_sdr_timings(0); - if (IS_ERR(timings)) - return PTR_ERR(timings); - - pxa3xx_nand_set_sdr_timing(host, timings); - - chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0); - ret = chip->waitfunc(mtd, chip); - if (ret & NAND_STATUS_FAIL) - return -ENODEV; - - return 0; -} - static int pxa_ecc_init(struct pxa3xx_nand_info *info, struct nand_ecc_ctrl *ecc, int strength, int ecc_stepsize, int page_size) @@ -1602,13 +1584,6 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) ret = pxa3xx_nand_config_ident(info); if (ret) return ret; - ret = pxa3xx_nand_sensing(host); - if (ret) { - dev_info(&info->pdev->dev, - "There is no chip on cs %d!\n", - info->cs); - return ret; - } } if (info->reg_ndcr & NDCR_DWIDTH_M) -- cgit v1.2.3 From f3028c840867d2235886a6a5c97865fc9d91bafd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:45 -0300 Subject: mtd: pxa3xx_nand: Remove dead code This macro is not used anymore, so it's just dead code. Remove it. Signed-off-by: Ezequiel Garcia Acked-by: Robert Jarzmik Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index bf1b2ac0e425..2f337eaef155 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -30,11 +30,6 @@ #include #include #include - -#if defined(CONFIG_ARM) && (defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP)) -#define ARCH_HAS_DMA -#endif - #include #define CHIP_DELAY_TIMEOUT msecs_to_jiffies(200) -- cgit v1.2.3 From d55d31a6b8f65bb13e1912043a66295cc928967c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Wed, 4 Nov 2015 13:13:46 -0300 Subject: mtd: pxa3xx_nand: Gate/ungate the NAND clock in suspend/resume paths The NAND clock can be disabled on suspend and enabled on resume. Signed-off-by: Ezequiel Garcia Acked-by: Robert Jarzmik Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 2f337eaef155..2bb9732a42f8 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1936,12 +1936,18 @@ static int pxa3xx_nand_suspend(struct device *dev) return -EAGAIN; } + clk_disable(info->clk); return 0; } static int pxa3xx_nand_resume(struct device *dev) { struct pxa3xx_nand_info *info = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(info->clk); + if (ret < 0) + return ret; /* We don't want to handle interrupt without calling mtd routine */ disable_int(info, NDCR_INT_MASK); -- cgit v1.2.3 From 2b2462d5928379b8f43ffe19d72d069bfb89d316 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 4 Nov 2015 15:21:21 -0500 Subject: mtd: sm_ftl: fix wrong do_div() usage do_div() is meant to be used with an unsigned dividend. Signed-off-by: Nicolas Pitre Signed-off-by: Brian Norris --- drivers/mtd/sm_ftl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index c23184a47fc4..b096f8bb05ba 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -206,9 +206,10 @@ static loff_t sm_mkoffset(struct sm_ftl *ftl, int zone, int block, int boffset) } /* Breaks offset into parts */ -static void sm_break_offset(struct sm_ftl *ftl, loff_t offset, +static void sm_break_offset(struct sm_ftl *ftl, loff_t loffset, int *zone, int *block, int *boffset) { + u64 offset = loffset; *boffset = do_div(offset, ftl->block_size); *block = do_div(offset, ftl->max_lba); *zone = offset >= ftl->zone_count ? -1 : offset; -- cgit v1.2.3 From 20625dfe0384676e3ee244091c4f09544d080798 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 30 Oct 2015 12:56:22 -0700 Subject: mtd: spi-nor: remove unnecessary leading space from dbg print As Cyrille noted [1], this line is wrong. [1] http://lists.infradead.org/pipermail/linux-mtd/2015-September/061725.html Signed-off-by: Brian Norris Cc: Cyrille Pitchen --- drivers/mtd/spi-nor/spi-nor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 12041e181630..16c9f5522b8f 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -856,7 +856,7 @@ static const struct flash_info *spi_nor_read_id(struct spi_nor *nor) tmp = nor->read_reg(nor, SPINOR_OP_RDID, id, SPI_NOR_MAX_ID_LEN); if (tmp < 0) { - dev_dbg(nor->dev, " error %d reading JEDEC ID\n", tmp); + dev_dbg(nor->dev, "error %d reading JEDEC ID\n", tmp); return ERR_PTR(tmp); } -- cgit v1.2.3 From 1b15b1f5a01019524815a9ce5c575f3b2068e7f8 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 17 Nov 2015 13:58:50 -0200 Subject: mtd: mxc_nand: Remove bit-or operation with zero Doing a bit-or operation with zero is pointless. Remove this unneeded bit-or. Signed-off-by: Fabio Estevam Signed-off-by: Brian Norris --- drivers/mtd/nand/mxc_nand.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 7922d318ebb8..f507d361b1a6 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1067,8 +1067,7 @@ static void preset_v3(struct mtd_info *mtd) /* Blocks to be unlocked */ for (i = 0; i < NAND_MAX_CHIPS; i++) - writel(0x0 | (0xffff << 16), - NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2)); + writel(0xffff << 16, NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2)); writel(0, NFC_V3_IPC); -- cgit v1.2.3 From fc5adbebac6ffab461492f7a415648b29b1a3b31 Mon Sep 17 00:00:00 2001 From: Wang YanQing Date: Fri, 30 Oct 2015 00:36:33 +0800 Subject: Documentation: mtd: improve nand_ecc.txt for readability and correctness This patch correct some representation errors, add a little clarification in some places, and fix indentation problems for pseudo code. It also delete one more white space for one place. Signed-off-by: Wang YanQing [Brian: a few tweaks] Signed-off-by: Brian Norris --- Documentation/mtd/nand_ecc.txt | 58 +++++++++++++++++++++--------------------- 1 file changed, 29 insertions(+), 29 deletions(-) diff --git a/Documentation/mtd/nand_ecc.txt b/Documentation/mtd/nand_ecc.txt index e129b2479ea8..f8c3284bf6a7 100644 --- a/Documentation/mtd/nand_ecc.txt +++ b/Documentation/mtd/nand_ecc.txt @@ -107,7 +107,7 @@ for (i = 0; i < 256; i++) if (i & 0x01) rp1 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp1; else - rp0 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp1; + rp0 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp0; if (i & 0x02) rp3 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp3; else @@ -127,7 +127,7 @@ for (i = 0; i < 256; i++) if (i & 0x20) rp11 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp11; else - rp10 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp10; + rp10 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp10; if (i & 0x40) rp13 = bit7 ^ bit6 ^ bit5 ^ bit4 ^ bit3 ^ bit2 ^ bit1 ^ bit0 ^ rp13; else @@ -158,7 +158,7 @@ the values in any order. So instead of calculating all the bits individually, let us try to rearrange things. For the column parity this is easy. We can just xor the bytes and in the end filter out the relevant bits. This is pretty nice as it will bring -all cp calculation out of the if loop. +all cp calculation out of the for loop. Similarly we can first xor the bytes for the various rows. This leads to: @@ -271,11 +271,11 @@ to write our code in such a way that we process data in 32 bit chunks. Of course this means some modification as the row parity is byte by byte. A quick analysis: for the column parity we use the par variable. When extending to 32 bits -we can in the end easily calculate p0 and p1 from it. +we can in the end easily calculate rp0 and rp1 from it. (because par now consists of 4 bytes, contributing to rp1, rp0, rp1, rp0 -respectively) +respectively, from MSB to LSB) also rp2 and rp3 can be easily retrieved from par as rp3 covers the -first two bytes and rp2 the last two bytes. +first two MSBs and rp2 covers the last two LSBs. Note that of course now the loop is executed only 64 times (256/4). And note that care must taken wrt byte ordering. The way bytes are @@ -387,11 +387,11 @@ Analysis 2 The code (of course) works, and hurray: we are a little bit faster than the linux driver code (about 15%). But wait, don't cheer too quickly. -THere is more to be gained. +There is more to be gained. If we look at e.g. rp14 and rp15 we see that we either xor our data with rp14 or with rp15. However we also have par which goes over all data. This means there is no need to calculate rp14 as it can be calculated from -rp15 through rp14 = par ^ rp15; +rp15 through rp14 = par ^ rp15, because par = rp14 ^ rp15; (or if desired we can avoid calculating rp15 and calculate it from rp14). That is why some places refer to inverse parity. Of course the same thing holds for rp4/5, rp6/7, rp8/9, rp10/11 and rp12/13. @@ -419,12 +419,12 @@ with if (i & 0x20) rp15 ^= cur; and outside the loop added: - rp4 = par ^ rp5; - rp6 = par ^ rp7; - rp8 = par ^ rp9; - rp10 = par ^ rp11; - rp12 = par ^ rp13; - rp14 = par ^ rp15; + rp4 = par ^ rp5; + rp6 = par ^ rp7; + rp8 = par ^ rp9; + rp10 = par ^ rp11; + rp12 = par ^ rp13; + rp14 = par ^ rp15; And after that the code takes about 30% more time, although the number of statements is reduced. This is also reflected in the assembly code. @@ -524,12 +524,12 @@ THe code within the for loop was changed to: cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp6 ^= cur; cur = *bp++; tmppar ^= cur; rp6 ^= cur; - cur = *bp++; tmppar ^= cur; rp4 ^= cur; - cur = *bp++; tmppar ^= cur; rp10 ^= tmppar; + cur = *bp++; tmppar ^= cur; rp4 ^= cur; + cur = *bp++; tmppar ^= cur; rp10 ^= tmppar; - cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp6 ^= cur; rp8 ^= cur; + cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp6 ^= cur; rp8 ^= cur; cur = *bp++; tmppar ^= cur; rp6 ^= cur; rp8 ^= cur; - cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp8 ^= cur; + cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp8 ^= cur; cur = *bp++; tmppar ^= cur; rp8 ^= cur; cur = *bp++; tmppar ^= cur; rp4 ^= cur; rp6 ^= cur; @@ -537,7 +537,7 @@ THe code within the for loop was changed to: cur = *bp++; tmppar ^= cur; rp4 ^= cur; cur = *bp++; tmppar ^= cur; - par ^= tmppar; + par ^= tmppar; if ((i & 0x1) == 0) rp12 ^= tmppar; if ((i & 0x2) == 0) rp14 ^= tmppar; } @@ -548,8 +548,8 @@ to rp12 and rp14. While making the changes I also found that I could exploit that tmppar contains the running parity for this iteration. So instead of having: -rp4 ^= cur; rp6 = cur; -I removed the rp6 = cur; statement and did rp6 ^= tmppar; on next +rp4 ^= cur; rp6 ^= cur; +I removed the rp6 ^= cur; statement and did rp6 ^= tmppar; on next statement. A similar change was done for rp8 and rp10 @@ -593,22 +593,22 @@ The new code now looks like: cur = *bp++; tmppar ^= cur; rp4_6 ^= cur; cur = *bp++; tmppar ^= cur; rp6 ^= cur; - cur = *bp++; tmppar ^= cur; rp4 ^= cur; - cur = *bp++; tmppar ^= cur; rp10 ^= tmppar; + cur = *bp++; tmppar ^= cur; rp4 ^= cur; + cur = *bp++; tmppar ^= cur; rp10 ^= tmppar; - notrp8 = tmppar; - cur = *bp++; tmppar ^= cur; rp4_6 ^= cur; + notrp8 = tmppar; + cur = *bp++; tmppar ^= cur; rp4_6 ^= cur; cur = *bp++; tmppar ^= cur; rp6 ^= cur; - cur = *bp++; tmppar ^= cur; rp4 ^= cur; + cur = *bp++; tmppar ^= cur; rp4 ^= cur; cur = *bp++; tmppar ^= cur; - rp8 = rp8 ^ tmppar ^ notrp8; + rp8 = rp8 ^ tmppar ^ notrp8; cur = *bp++; tmppar ^= cur; rp4_6 ^= cur; cur = *bp++; tmppar ^= cur; rp6 ^= cur; cur = *bp++; tmppar ^= cur; rp4 ^= cur; cur = *bp++; tmppar ^= cur; - par ^= tmppar; + par ^= tmppar; if ((i & 0x1) == 0) rp12 ^= tmppar; if ((i & 0x2) == 0) rp14 ^= tmppar; } @@ -700,7 +700,7 @@ Conclusion The gain when calculating the ecc is tremendous. Om my development hardware a speedup of a factor of 18 for ecc calculation was achieved. On a test on an embedded system with a MIPS core a factor 7 was obtained. -On a test with a Linksys NSLU2 (ARMv5TE processor) the speedup was a factor +On a test with a Linksys NSLU2 (ARMv5TE processor) the speedup was a factor 5 (big endian mode, gcc 4.1.2, -O3) For correction not much gain could be obtained (as bitflips are rare). Then again there are also much less cycles spent there. -- cgit v1.2.3 From c98f71d1c05601cff0f302889933798020e08869 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 10:45:30 -0800 Subject: mtd: fsl-quadspi: possible NULL dereference It is theoretically possible to probe this driver without a matching device tree, so let's guard against this. Also, use the of_device_get_match_data() helper to make this a bit simpler. Coverity complained about this one. Signed-off-by: Brian Norris Acked-by: Han xu --- drivers/mtd/spi-nor/fsl-quadspi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c index 9e7f657af6a5..54640f1eb3a1 100644 --- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -269,7 +269,7 @@ struct fsl_qspi { struct clk *clk, *clk_en; struct device *dev; struct completion c; - struct fsl_qspi_devtype_data *devtype_data; + const struct fsl_qspi_devtype_data *devtype_data; u32 nor_size; u32 nor_num; u32 clk_rate; @@ -933,8 +933,6 @@ static int fsl_qspi_probe(struct platform_device *pdev) struct spi_nor *nor; struct mtd_info *mtd; int ret, i = 0; - const struct of_device_id *of_id = - of_match_device(fsl_qspi_dt_ids, &pdev->dev); q = devm_kzalloc(dev, sizeof(*q), GFP_KERNEL); if (!q) @@ -945,7 +943,9 @@ static int fsl_qspi_probe(struct platform_device *pdev) return -ENODEV; q->dev = dev; - q->devtype_data = (struct fsl_qspi_devtype_data *)of_id->data; + q->devtype_data = of_device_get_match_data(dev); + if (!q->devtype_data) + return -ENODEV; platform_set_drvdata(pdev, q); /* find the resources */ -- cgit v1.2.3 From d618baf94c62eb63b5b7f6159fb6aee5550a2e10 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 16:56:13 -0800 Subject: mtd: brcmnand: clean up flash cache for parameter pages The read_byte() handling for accessing the flash cache has some awkward swapping being done in the read_byte() function. Let's just make this a byte array, and do the swapping with the word-level macros during the initial buffer copy. This is just a refactoring patch, with no (intended) functional change. Signed-off-by: Brian Norris Cc: Clay McClure Cc: Ray Jui Cc: Scott Branden Cc: Tested-by: Clay McClure --- drivers/mtd/nand/brcmnand/brcmnand.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 2a437c7ed175..0f43bc95ece4 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -134,7 +134,7 @@ struct brcmnand_controller { dma_addr_t dma_pa; /* in-memory cache of the FLASH_CACHE, used only for some commands */ - u32 flash_cache[FC_WORDS]; + u8 flash_cache[FC_BYTES]; /* Controller revision details */ const u16 *reg_offsets; @@ -1188,6 +1188,8 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, if (native_cmd == CMD_PARAMETER_READ || native_cmd == CMD_PARAMETER_CHANGE_COL) { + /* Copy flash cache word-wise */ + u32 *flash_cache = (u32 *)ctrl->flash_cache; int i; brcmnand_soc_data_bus_prepare(ctrl->soc); @@ -1197,7 +1199,11 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, * SECTOR_SIZE_1K may invalidate it */ for (i = 0; i < FC_WORDS; i++) - ctrl->flash_cache[i] = brcmnand_read_fc(ctrl, i); + /* + * Flash cache is big endian for parameter pages, at + * least on STB SoCs + */ + flash_cache[i] = be32_to_cpu(brcmnand_read_fc(ctrl, i)); brcmnand_soc_data_bus_unprepare(ctrl->soc); @@ -1250,8 +1256,7 @@ static uint8_t brcmnand_read_byte(struct mtd_info *mtd) if (host->last_byte > 0 && offs == 0) chip->cmdfunc(mtd, NAND_CMD_RNDOUT, addr, -1); - ret = ctrl->flash_cache[offs >> 2] >> - (24 - ((offs & 0x03) << 3)); + ret = ctrl->flash_cache[offs]; break; case NAND_CMD_GET_FEATURES: if (host->last_byte >= ONFI_SUBFEATURE_PARAM_LEN) { -- cgit v1.2.3 From 064f462632c2294f9b7fb51a7697392fedeea12e Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 17:04:08 -0800 Subject: mtd: brcmnand: drop unused subpage_read() support AFAIR this driver was never tested with subpage read support, and this code is currently unused because we don't set the NAND_SUBPAGE_READ flag. It can be resurrected if someone tests it properly. Signed-off-by: Brian Norris Tested-by: Ray Jui --- drivers/mtd/nand/brcmnand/brcmnand.c | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 0f43bc95ece4..626a80eb76a1 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1551,16 +1551,6 @@ static int brcmnand_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, return 0; } -static int brcmnand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, - uint32_t data_offs, uint32_t readlen, - uint8_t *bufpoi, int page) -{ - struct brcmnand_host *host = chip->priv; - - return brcmnand_read(mtd, chip, host->last_addr + data_offs, - readlen >> FC_SHIFT, (u32 *)bufpoi, NULL); -} - static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip, u64 addr, const u32 *buf, u8 *oob) { @@ -1949,7 +1939,6 @@ static int brcmnand_init_cs(struct brcmnand_host *host) chip->ecc.mode = NAND_ECC_HW; chip->ecc.read_page = brcmnand_read_page; - chip->ecc.read_subpage = brcmnand_read_subpage; chip->ecc.write_page = brcmnand_write_page; chip->ecc.read_page_raw = brcmnand_read_page_raw; chip->ecc.write_page_raw = brcmnand_write_page_raw; -- cgit v1.2.3 From 1d8d8b5c852b6c7ae860ddc647ebb3ed3493c9a8 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 16 Nov 2015 14:37:34 +0100 Subject: mtd: nand: fix drivers abusing mtd->priv The ->priv field of the mtd_info object attached to a nand_chip device should point to the nand_chip device. The pxa and cafe drivers are assigning this field their own private structure, which works fine as long as the nand_chip field is the first one in the driver private struct but seems a bit fragile. Fix that by setting mtd->priv to point the nand_chip field and assigning chip->priv to the private structure head. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/cafe_nand.c | 34 ++++++++++++++++++++++------------ drivers/mtd/nand/pxa3xx_nand.c | 30 +++++++++++++++++++----------- 2 files changed, 41 insertions(+), 23 deletions(-) diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 9de78d2a2eb1..cce3ac4939b6 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -101,7 +101,8 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int cafe_device_ready(struct mtd_info *mtd) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); @@ -117,7 +118,8 @@ static int cafe_device_ready(struct mtd_info *mtd) static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; if (usedma) memcpy(cafe->dmabuf + cafe->datalen, buf, len); @@ -132,7 +134,8 @@ static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; if (usedma) memcpy(buf, cafe->dmabuf + cafe->datalen, len); @@ -146,7 +149,8 @@ static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static uint8_t cafe_read_byte(struct mtd_info *mtd) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; uint8_t d; cafe_read_buf(mtd, &d, 1); @@ -158,7 +162,8 @@ static uint8_t cafe_read_byte(struct mtd_info *mtd) static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; int adrbytes = 0; uint32_t ctl1; uint32_t doneint = 0x80000000; @@ -313,7 +318,8 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, static void cafe_select_chip(struct mtd_info *mtd, int chipnr) { - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr); @@ -328,7 +334,8 @@ static void cafe_select_chip(struct mtd_info *mtd, int chipnr) static irqreturn_t cafe_nand_interrupt(int irq, void *id) { struct mtd_info *mtd = id; - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; uint32_t irqs = cafe_readl(cafe, NAND_IRQ); cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ); if (!irqs) @@ -377,7 +384,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct cafe_priv *cafe = mtd->priv; + struct cafe_priv *cafe = chip->priv; unsigned int max_bitflips = 0; cafe_dev_dbg(&cafe->pdev->dev, "ECC result %08x SYN1,2 %08x\n", @@ -519,7 +526,7 @@ static int cafe_nand_write_page_lowlevel(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - struct cafe_priv *cafe = mtd->priv; + struct cafe_priv *cafe = chip->priv; chip->write_buf(mtd, buf, mtd->writesize); chip->write_buf(mtd, chip->oob_poi, mtd->oobsize); @@ -604,7 +611,8 @@ static int cafe_nand_probe(struct pci_dev *pdev, cafe = (void *)(&mtd[1]); mtd->dev.parent = &pdev->dev; - mtd->priv = cafe; + mtd->priv = &cafe->nand; + cafe->nand.priv = cafe; cafe->pdev = pdev; cafe->mmio = pci_iomap(pdev, 0, 0); @@ -792,7 +800,8 @@ static int cafe_nand_probe(struct pci_dev *pdev, static void cafe_nand_remove(struct pci_dev *pdev) { struct mtd_info *mtd = pci_get_drvdata(pdev); - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; /* Disable NAND IRQ in global IRQ mask register */ cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK); @@ -819,7 +828,8 @@ static int cafe_nand_resume(struct pci_dev *pdev) { uint32_t ctrl; struct mtd_info *mtd = pci_get_drvdata(pdev); - struct cafe_priv *cafe = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct cafe_priv *cafe = chip->priv; /* Start off by resetting the NAND controller completely */ cafe_writel(cafe, 1, NAND_RESET); diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 2bb9732a42f8..bdbc2c231ceb 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1113,7 +1113,8 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command, static void nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int exec_cmd; @@ -1161,7 +1162,8 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd, const unsigned command, int column, int page_addr) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int exec_cmd, ext_cmd_type; @@ -1281,7 +1283,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; chip->read_buf(mtd, buf, mtd->writesize); @@ -1307,7 +1309,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; char retval = 0xFF; @@ -1320,7 +1323,8 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; u16 retval = 0xFFFF; @@ -1333,7 +1337,8 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1344,7 +1349,8 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void pxa3xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1359,7 +1365,8 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip) static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; if (info->need_wait) { @@ -1565,11 +1572,11 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, static int pxa3xx_nand_scan(struct mtd_info *mtd) { - struct pxa3xx_nand_host *host = mtd->priv; + struct nand_chip *chip = mtd->priv; + struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); - struct nand_chip *chip = mtd->priv; int ret; uint16_t ecc_strength, ecc_step; @@ -1701,11 +1708,12 @@ static int alloc_nand_resource(struct platform_device *pdev) host->mtd = mtd; host->cs = cs; host->info_data = info; - mtd->priv = host; + mtd->priv = chip; mtd->dev.parent = &pdev->dev; /* FIXME: all chips use the same device tree partitions */ nand_set_flash_node(chip, np); + chip->priv = host; chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; chip->controller = &info->controller; -- cgit v1.2.3 From 9eba47ddd8fee8a21f45e6e1d707103f040d90c7 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 16 Nov 2015 14:37:35 +0100 Subject: mtd: nand: add an mtd_to_nand() helper Some drivers are retrieving the nand_chip pointer using the container_of macro on a struct wrapping both the nand_chip and the mtd_info struct while the standard way of retrieving this pointer is through mtd->priv. Provide an helper to do that. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 5a9d1d4c2487..a4839b3f27da 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -719,6 +719,11 @@ struct nand_chip { void *priv; }; +static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) +{ + return mtd->priv; +} + /* * NAND Flash Manufacturer ID Codes */ -- cgit v1.2.3 From 1e6460abf739310fe695bafac30c2be39d18c8f9 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 16 Nov 2015 14:37:36 +0100 Subject: doc: mtd: nand: update examples to use mtd_to_nand() mtd_to_nand() has been introduced to hide accesses to mtd->priv. All NAND controller drivers should use it instead of directly accessing the ->priv field. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- Documentation/DocBook/mtdnand.tmpl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl index 7da8f0402af5..403a7abfc2bc 100644 --- a/Documentation/DocBook/mtdnand.tmpl +++ b/Documentation/DocBook/mtdnand.tmpl @@ -235,7 +235,7 @@ static void board_hwcontrol(struct mtd_info *mtd, int cmd) static void board_hwcontrol(struct mtd_info *mtd, int cmd) { - struct nand_chip *this = (struct nand_chip *) mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); switch(cmd){ case NAND_CTL_SETCLE: this->IO_ADDR_W |= CLE_ADRR_BIT; break; case NAND_CTL_CLRCLE: this->IO_ADDR_W &= ~CLE_ADRR_BIT; break; @@ -399,7 +399,7 @@ static void board_select_chip (struct mtd_info *mtd, int chip) static void board_select_chip (struct mtd_info *mtd, int chip) { - struct nand_chip *this = (struct nand_chip *) mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); /* Deselect all chips */ this->IO_ADDR_R &= ~BOARD_NAND_ADDR_MASK; -- cgit v1.2.3 From c67cbb839da9cc2757eabfa128556db6a2baf160 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 10 Nov 2015 12:15:27 -0800 Subject: mtd: spi-nor: provide default erase_sector implementation Some spi-nor drivers perform sector erase by duplicating their write_reg() command. Let's not require that the driver fill this out, and provide a default instead. Tested on m25p80.c and Medatek's MT8173 SPI NOR flash driver. Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 37 +++++++++++++++++++++++++++++++++---- include/linux/mtd/spi-nor.h | 3 ++- 2 files changed, 35 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 16c9f5522b8f..a38ec01a1e06 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -38,6 +38,7 @@ #define CHIP_ERASE_2MB_READY_WAIT_JIFFIES (40UL * HZ) #define SPI_NOR_MAX_ID_LEN 6 +#define SPI_NOR_MAX_ADDR_WIDTH 4 struct flash_info { char *name; @@ -312,6 +313,29 @@ static void spi_nor_unlock_and_unprep(struct spi_nor *nor, enum spi_nor_ops ops) mutex_unlock(&nor->lock); } +/* + * Initiate the erasure of a single sector + */ +static int spi_nor_erase_sector(struct spi_nor *nor, u32 addr) +{ + u8 buf[SPI_NOR_MAX_ADDR_WIDTH]; + int i; + + if (nor->erase) + return nor->erase(nor, addr); + + /* + * Default implementation, if driver doesn't have a specialized HW + * control + */ + for (i = nor->addr_width - 1; i >= 0; i--) { + buf[i] = addr & 0xff; + addr >>= 8; + } + + return nor->write_reg(nor, nor->erase_opcode, buf, nor->addr_width); +} + /* * Erase an address range on the nor chip. The address range may extend * one or more erase sectors. Return an error is there is a problem erasing. @@ -371,10 +395,9 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr) while (len) { write_enable(nor); - if (nor->erase(nor, addr)) { - ret = -EIO; + ret = spi_nor_erase_sector(nor, addr); + if (ret) goto erase_err; - } addr += mtd->erasesize; len -= mtd->erasesize; @@ -1138,7 +1161,7 @@ static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info) static int spi_nor_check(struct spi_nor *nor) { if (!nor->dev || !nor->read || !nor->write || - !nor->read_reg || !nor->write_reg || !nor->erase) { + !nor->read_reg || !nor->write_reg) { pr_err("spi-nor: please fill all the necessary fields!\n"); return -EINVAL; } @@ -1340,6 +1363,12 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) nor->addr_width = 3; } + if (nor->addr_width > SPI_NOR_MAX_ADDR_WIDTH) { + dev_err(dev, "address width is too large: %u\n", + nor->addr_width); + return -EINVAL; + } + nor->read_dummy = spi_nor_read_dummy_cycles(nor); dev_info(dev, "%s (%lld Kbytes)\n", info->name, diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 955f268d159a..7bed97471e53 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -143,7 +143,8 @@ struct mtd_info; * @read: [DRIVER-SPECIFIC] read data from the SPI NOR * @write: [DRIVER-SPECIFIC] write data to the SPI NOR * @erase: [DRIVER-SPECIFIC] erase a sector of the SPI NOR - * at the offset @offs + * at the offset @offs; if not provided by the driver, + * spi-nor will send the erase opcode via write_reg() * @flash_lock: [FLASH-SPECIFIC] lock a region of the SPI NOR * @flash_unlock: [FLASH-SPECIFIC] unlock a region of the SPI NOR * @flash_is_locked: [FLASH-SPECIFIC] check if a region of the SPI NOR is -- cgit v1.2.3 From cd78ea02dc82eb26be8c2fc1cf05adbf94ea8727 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 10 Nov 2015 12:15:28 -0800 Subject: mtd: m25p80: drop erase() callback Just use the spi-nor default instead. Signed-off-by: Brian Norris --- drivers/mtd/devices/m25p80.c | 17 ----------------- 1 file changed, 17 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index f002a8f75374..6077c4aa8985 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -152,22 +152,6 @@ static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len, return 0; } -static int m25p80_erase(struct spi_nor *nor, loff_t offset) -{ - struct m25p *flash = nor->priv; - - dev_dbg(nor->dev, "%dKiB at 0x%08x\n", - flash->spi_nor.mtd.erasesize / 1024, (u32)offset); - - /* Set up command buffer. */ - flash->command[0] = nor->erase_opcode; - m25p_addr2cmd(nor, offset, flash->command); - - spi_write(flash->spi, flash->command, m25p_cmdsz(nor)); - - return 0; -} - /* * board specific setup should have ensured the SPI clock used here * matches what the READ command supports, at least until this driver @@ -193,7 +177,6 @@ static int m25p_probe(struct spi_device *spi) /* install the hooks */ nor->read = m25p80_read; nor->write = m25p80_write; - nor->erase = m25p80_erase; nor->write_reg = m25p80_write_reg; nor->read_reg = m25p80_read_reg; -- cgit v1.2.3 From 0501f2e5ff28a02295e42fc9e7164a20ef4c30d5 Mon Sep 17 00:00:00 2001 From: Andreas Fenkart Date: Thu, 5 Nov 2015 10:04:23 +0100 Subject: mtd: spi-nor: mx25l3205d/mx25l6405d: append SECT_4K according datasheet both chips can erase 4kByte sectors individually Signed-off-by: Andreas Fenkart Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index a38ec01a1e06..b7c038c75684 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -738,9 +738,9 @@ static const struct flash_info spi_nor_ids[] = { { "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) }, { "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) }, { "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) }, - { "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, 0) }, + { "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, SECT_4K) }, { "mx25l3255e", INFO(0xc29e16, 0, 64 * 1024, 64, SECT_4K) }, - { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, 0) }, + { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) }, { "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) }, { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) }, { "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) }, -- cgit v1.2.3 From de57732da86288cae9a84bd6ce7cf1d1e21f8329 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 14:34:50 -0800 Subject: mtd: m25p80: fix module autoloading for "jedec, spi-nor" and "spi-nor" Commit 43163022927b ("mtd: m25p80: allow arbitrary OF matching for "jedec,spi-nor"") moved the "jedec,spi-nor" handling from the spi_device_id table to the of_match_table, to better handle matching complex device tree compatible strings. With that patch, device tree support works as expected when m25p80.c is built into the kernel. However, that commit ignored the fact that: (1) (non-DT) platform devices might want to use the "spi-nor" string for matching with this driver, rather than picking an arbitrary one like "m25p80" (2) the core SPI uevent/modalias code doesn't yet support kernel module autoloading via of_match_table strings; so for DT-based devices, it will only report (part of) the first compatible string used Problem (1) has been reported previously, and I forgot to patch it up afterward. Problem (2) was noticed recently here: http://lists.infradead.org/pipermail/linux-mtd/2015-October/062369.html https://lkml.org/lkml/2015/11/12/574 Specifically, this patch fixes m25p80.ko module autoloading for cases like this: flash@xxx { compatible = "jedec,spi-nor"; ... }; because modalias of "spi:spi-nor" (the only module loading info provided by the SPI core for this device) will now be listed as an alias in m25p80.ko. Notably, it does *not* help cases like this: flash@xxx { compatible = "vendor,shiny-new-device", "jedec,spi-nor"; ... }; unless we also list "shiny-new-device" in m25p_ids[]. There has been discussion on future work for this issue here: https://lkml.org/lkml/2015/11/12/574 Cc: Heiner Kallweit Signed-off-by: Brian Norris Reviewed-by: Javier Martinez Canillas --- drivers/mtd/devices/m25p80.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 6077c4aa8985..1275357c99b9 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -163,7 +163,7 @@ static int m25p_probe(struct spi_device *spi) struct m25p *flash; struct spi_nor *nor; enum read_mode mode = SPI_NOR_NORMAL; - char *flash_name = NULL; + char *flash_name; int ret; data = dev_get_platdata(&spi->dev); @@ -202,6 +202,8 @@ static int m25p_probe(struct spi_device *spi) */ if (data && data->type) flash_name = data->type; + else if (!strcmp(spi->modalias, "spi-nor")) + flash_name = NULL; /* auto-detect */ else flash_name = spi->modalias; @@ -235,6 +237,13 @@ static int m25p_remove(struct spi_device *spi) * keep them available as module aliases for existing platforms. */ static const struct spi_device_id m25p_ids[] = { + /* + * Allow non-DT platform devices to bind to the "spi-nor" modalias, and + * hack around the fact that the SPI core does not provide uevent + * matching for .of_match_table + */ + {"spi-nor"}, + /* * Entries not used in DTs that should be safe to drop after replacing * them with "nor-jedec" in platform data. -- cgit v1.2.3 From c1711b297f6e2270c1cb17de512985ef500e0de9 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 14:34:51 -0800 Subject: mtd: m25p80: replace leftover "nor-jedec" with "spi-nor" in comments I overlooked a few comments in commit 8947e396a829 ("Documentation: dt: mtd: replace "nor-jedec" binding with "jedec, spi-nor""). Fix these up now. Suggested-by: Javier Martinez Canillas Signed-off-by: Brian Norris Reviewed-by: Javier Martinez Canillas --- drivers/mtd/devices/m25p80.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 1275357c99b9..c9c3b7fa3051 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -246,13 +246,13 @@ static const struct spi_device_id m25p_ids[] = { /* * Entries not used in DTs that should be safe to drop after replacing - * them with "nor-jedec" in platform data. + * them with "spi-nor" in platform data. */ {"s25sl064a"}, {"w25x16"}, {"m25p10"}, {"m25px64"}, /* - * Entries that were used in DTs without "nor-jedec" fallback and should - * be kept for backward compatibility. + * Entries that were used in DTs without "jedec,spi-nor" fallback and + * should be kept for backward compatibility. */ {"at25df321a"}, {"at25df641"}, {"at26df081a"}, {"mr25h256"}, -- cgit v1.2.3 From 1d158315c13b6989f7ddb1d8d334965d14d958d8 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 16 Nov 2015 14:34:52 -0800 Subject: doc: dt: mtd: stop referring to driver code for spi-nor IDs Pull the supported chip names from drivers/mtd/devices/m25p80.c and stop pointing readers to Linux code. Also (although I see this habit repeated throughout the Documentation/devicetree/bindings/ tree), stop using the title "driver" in this file, when we're trying explicitly to describe hardware, not software. Signed-off-by: Brian Norris Cc: Acked-by: Rob Herring Reviewed-by: Javier Martinez Canillas --- .../devicetree/bindings/mtd/jedec,spi-nor.txt | 56 ++++++++++++++++++++-- 1 file changed, 51 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt index 2bee68103b01..2c91c03e7eb0 100644 --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt @@ -1,15 +1,61 @@ -* MTD SPI driver for ST M25Pxx (and similar) serial flash chips +* SPI NOR flash: ST M25Pxx (and similar) serial flash chips Required properties: - #address-cells, #size-cells : Must be present if the device has sub-nodes representing partitions. - compatible : May include a device-specific string consisting of the - manufacturer and name of the chip. Bear in mind the DT binding - is not Linux-only, but in case of Linux, see the "m25p_ids" - table in drivers/mtd/devices/m25p80.c for the list of supported - chips. + manufacturer and name of the chip. A list of supported chip + names follows. Must also include "jedec,spi-nor" for any SPI NOR flash that can be identified by the JEDEC READ ID opcode (0x9F). + + Supported chip names: + at25df321a + at25df641 + at26df081a + mr25h256 + mx25l4005a + mx25l1606e + mx25l6405d + mx25l12805d + mx25l25635e + n25q064 + n25q128a11 + n25q128a13 + n25q512a + s25fl256s1 + s25fl512s + s25sl12801 + s25fl008k + s25fl064k + sst25vf040b + m25p40 + m25p80 + m25p16 + m25p32 + m25p64 + m25p128 + w25x80 + w25x32 + w25q32 + w25q32dw + w25q80bl + w25q128 + w25q256 + + The following chip names have been used historically to + designate quirky versions of flash chips that do not support the + JEDEC READ ID opcode (0x9F): + m25p05-nonjedec + m25p10-nonjedec + m25p20-nonjedec + m25p40-nonjedec + m25p80-nonjedec + m25p16-nonjedec + m25p32-nonjedec + m25p64-nonjedec + m25p128-nonjedec + - reg : Chip-Select number - spi-max-frequency : Maximum frequency of the SPI bus the chip can operate at -- cgit v1.2.3 From b9eab01125bf3cb6f5fbab1811402d16c9fcf4ec Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 11 Nov 2015 19:13:29 -0800 Subject: mtd: partitions: add module_mtd_part_parser() helper This can help eliminate some boilerplate by generating the module_init() and module_exit() functions, and by automatically assigning the module owner. Signed-off-by: Brian Norris --- drivers/mtd/mtdpart.c | 8 ++++++-- include/linux/mtd/partitions.h | 14 +++++++++++++- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 46dfbf5629c3..1fa3ca95d9c1 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -703,13 +703,17 @@ static struct mtd_part_parser *get_partition_parser(const char *name) #define put_partition_parser(p) do { module_put((p)->owner); } while (0) -void register_mtd_parser(struct mtd_part_parser *p) +int __register_mtd_parser(struct mtd_part_parser *p, struct module *owner) { + p->owner = owner; + spin_lock(&part_parser_lock); list_add(&p->list, &part_parsers); spin_unlock(&part_parser_lock); + + return 0; } -EXPORT_SYMBOL_GPL(register_mtd_parser); +EXPORT_SYMBOL_GPL(__register_mtd_parser); void deregister_mtd_parser(struct mtd_part_parser *p) { diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 8421520c10eb..d002d9b5d797 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -73,9 +73,21 @@ struct mtd_part_parser { struct mtd_part_parser_data *); }; -extern void register_mtd_parser(struct mtd_part_parser *parser); +extern int __register_mtd_parser(struct mtd_part_parser *parser, + struct module *owner); +#define register_mtd_parser(parser) __register_mtd_parser(parser, THIS_MODULE) + extern void deregister_mtd_parser(struct mtd_part_parser *parser); +/* + * module_mtd_part_parser() - Helper macro for MTD partition parsers that don't + * do anything special in module init/exit. Each driver may only use this macro + * once, and calling it replaces module_init() and module_exit(). + */ +#define module_mtd_part_parser(__mtd_part_parser) \ + module_driver(__mtd_part_parser, register_mtd_parser, \ + deregister_mtd_parser) + int mtd_is_partition(const struct mtd_info *mtd); int mtd_add_partition(struct mtd_info *master, const char *name, long long offset, long long length); -- cgit v1.2.3 From b8f70badb8cd7c928f7e076b6143aeb66fe13c8b Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 11 Nov 2015 19:13:30 -0800 Subject: mtd: kill off MTD partition parser boilerplate Most parsers can be handled with our new boilerplate-reducing macro. There are a few that can't be (cmdlineparts and ofpart). Also kill off the owner assignments, since register_mtd_parser() now takes care of that. Signed-off-by: Brian Norris --- drivers/mtd/afs.c | 17 +---------------- drivers/mtd/ar7part.c | 16 +--------------- drivers/mtd/bcm47xxpart.c | 16 +--------------- drivers/mtd/bcm63xxpart.c | 16 +--------------- drivers/mtd/cmdlinepart.c | 1 - drivers/mtd/ofpart.c | 2 -- drivers/mtd/redboot.c | 17 +---------------- 7 files changed, 5 insertions(+), 80 deletions(-) diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index a1eea50ce180..e02dae3b739b 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -256,25 +256,10 @@ static int parse_afs_partitions(struct mtd_info *mtd, } static struct mtd_part_parser afs_parser = { - .owner = THIS_MODULE, .parse_fn = parse_afs_partitions, .name = "afs", }; - -static int __init afs_parser_init(void) -{ - register_mtd_parser(&afs_parser); - return 0; -} - -static void __exit afs_parser_exit(void) -{ - deregister_mtd_parser(&afs_parser); -} - -module_init(afs_parser_init); -module_exit(afs_parser_exit); - +module_mtd_part_parser(afs_parser); MODULE_AUTHOR("ARM Ltd"); MODULE_DESCRIPTION("ARM Firmware Suite partition parser"); diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c index 7c9172ad2621..9203b96fd789 100644 --- a/drivers/mtd/ar7part.c +++ b/drivers/mtd/ar7part.c @@ -132,24 +132,10 @@ static int create_mtd_partitions(struct mtd_info *master, } static struct mtd_part_parser ar7_parser = { - .owner = THIS_MODULE, .parse_fn = create_mtd_partitions, .name = "ar7part", }; - -static int __init ar7_parser_init(void) -{ - register_mtd_parser(&ar7_parser); - return 0; -} - -static void __exit ar7_parser_exit(void) -{ - deregister_mtd_parser(&ar7_parser); -} - -module_init(ar7_parser_init); -module_exit(ar7_parser_exit); +module_mtd_part_parser(ar7_parser); MODULE_LICENSE("GPL"); MODULE_AUTHOR( "Felix Fietkau , " diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c index c0720c1ee4c9..92a6dd18198b 100644 --- a/drivers/mtd/bcm47xxpart.c +++ b/drivers/mtd/bcm47xxpart.c @@ -313,24 +313,10 @@ static int bcm47xxpart_parse(struct mtd_info *master, }; static struct mtd_part_parser bcm47xxpart_mtd_parser = { - .owner = THIS_MODULE, .parse_fn = bcm47xxpart_parse, .name = "bcm47xxpart", }; - -static int __init bcm47xxpart_init(void) -{ - register_mtd_parser(&bcm47xxpart_mtd_parser); - return 0; -} - -static void __exit bcm47xxpart_exit(void) -{ - deregister_mtd_parser(&bcm47xxpart_mtd_parser); -} - -module_init(bcm47xxpart_init); -module_exit(bcm47xxpart_exit); +module_mtd_part_parser(bcm47xxpart_mtd_parser); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("MTD partitioning for BCM47XX flash memories"); diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index b2443f7031c9..cf02135320bc 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -214,24 +214,10 @@ static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, }; static struct mtd_part_parser bcm63xx_cfe_parser = { - .owner = THIS_MODULE, .parse_fn = bcm63xx_parse_cfe_partitions, .name = "bcm63xxpart", }; - -static int __init bcm63xx_cfe_parser_init(void) -{ - register_mtd_parser(&bcm63xx_cfe_parser); - return 0; -} - -static void __exit bcm63xx_cfe_parser_exit(void) -{ - deregister_mtd_parser(&bcm63xx_cfe_parser); -} - -module_init(bcm63xx_cfe_parser_init); -module_exit(bcm63xx_cfe_parser_exit); +module_mtd_part_parser(bcm63xx_cfe_parser); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Daniel Dickinson "); diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index 08f62987cc37..420489864bc2 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -382,7 +382,6 @@ static int __init mtdpart_setup(char *s) __setup("mtdparts=", mtdpart_setup); static struct mtd_part_parser cmdline_parser = { - .owner = THIS_MODULE, .parse_fn = parse_cmdline_partitions, .name = "cmdlinepart", }; diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index f78d2aea5545..478538100ddd 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -131,7 +131,6 @@ ofpart_none: } static struct mtd_part_parser ofpart_parser = { - .owner = THIS_MODULE, .parse_fn = parse_ofpart_partitions, .name = "ofpart", }; @@ -191,7 +190,6 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, } static struct mtd_part_parser ofoldpart_parser = { - .owner = THIS_MODULE, .parse_fn = parse_ofoldpart_partitions, .name = "ofoldpart", }; diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 5da911ebdf49..11c3447eb8ff 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -290,28 +290,13 @@ static int parse_redboot_partitions(struct mtd_info *master, } static struct mtd_part_parser redboot_parser = { - .owner = THIS_MODULE, .parse_fn = parse_redboot_partitions, .name = "RedBoot", }; +module_mtd_part_parser(redboot_parser); /* mtd parsers will request the module by parser name */ MODULE_ALIAS("RedBoot"); - -static int __init redboot_parser_init(void) -{ - register_mtd_parser(&redboot_parser); - return 0; -} - -static void __exit redboot_parser_exit(void) -{ - deregister_mtd_parser(&redboot_parser); -} - -module_init(redboot_parser_init); -module_exit(redboot_parser_exit); - MODULE_LICENSE("GPL"); MODULE_AUTHOR("David Woodhouse "); MODULE_DESCRIPTION("Parsing code for RedBoot Flash Image System (FIS) tables"); -- cgit v1.2.3 From 72eaec21b0cf106dbb284cc855aef3df2dcc9cf6 Mon Sep 17 00:00:00 2001 From: LABBE Corentin Date: Fri, 20 Nov 2015 08:45:16 +0100 Subject: mtd: nand: atmel_nand: constify atmel_nand_caps structures All atmel_nand_caps are never modified, consitify them. Signed-off-by: LABBE Corentin Acked-by: Josh Wu Signed-off-by: Brian Norris --- drivers/mtd/nand/atmel_nand.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 6ecc1c1ab437..f4e1f915c696 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -128,7 +128,7 @@ struct atmel_nand_host { struct atmel_nfc *nfc; - struct atmel_nand_caps *caps; + const struct atmel_nand_caps *caps; bool has_pmecc; u8 pmecc_corr_cap; u16 pmecc_sector_size; @@ -2303,11 +2303,11 @@ static int atmel_nand_remove(struct platform_device *pdev) return 0; } -static struct atmel_nand_caps at91rm9200_caps = { +static const struct atmel_nand_caps at91rm9200_caps = { .pmecc_correct_erase_page = false, }; -static struct atmel_nand_caps sama5d4_caps = { +static const struct atmel_nand_caps sama5d4_caps = { .pmecc_correct_erase_page = true, }; -- cgit v1.2.3 From 3ce351b5354a206e92ccd2d7f30df9c8b7ae5ed1 Mon Sep 17 00:00:00 2001 From: Bayi Cheng Date: Wed, 18 Nov 2015 11:30:02 +0800 Subject: mtd: mtk-nor: new Mediatek serial flash controller driver Add spi nor flash driver for mediatek controller Signed-off-by: Bayi Cheng Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/Kconfig | 7 + drivers/mtd/spi-nor/Makefile | 1 + drivers/mtd/spi-nor/mtk-quadspi.c | 486 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 494 insertions(+) create mode 100644 drivers/mtd/spi-nor/mtk-quadspi.c diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig index 2fe2a7e90fa9..0dc927540b3d 100644 --- a/drivers/mtd/spi-nor/Kconfig +++ b/drivers/mtd/spi-nor/Kconfig @@ -7,6 +7,13 @@ menuconfig MTD_SPI_NOR if MTD_SPI_NOR +config MTD_MT81xx_NOR + tristate "Mediatek MT81xx SPI NOR flash controller" + help + This enables access to SPI NOR flash, using MT81xx SPI NOR flash + controller. This controller does not support generic SPI BUS, it only + supports SPI NOR Flash. + config MTD_SPI_NOR_USE_4K_SECTORS bool "Use small 4096 B erase sectors" default y diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile index e53333ef8582..0bf3a7f81675 100644 --- a/drivers/mtd/spi-nor/Makefile +++ b/drivers/mtd/spi-nor/Makefile @@ -1,3 +1,4 @@ obj-$(CONFIG_MTD_SPI_NOR) += spi-nor.o obj-$(CONFIG_SPI_FSL_QUADSPI) += fsl-quadspi.o +obj-$(CONFIG_MTD_MT81xx_NOR) += mtk-quadspi.o obj-$(CONFIG_SPI_NXP_SPIFI) += nxp-spifi.o diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c new file mode 100644 index 000000000000..dd269650cd16 --- /dev/null +++ b/drivers/mtd/spi-nor/mtk-quadspi.c @@ -0,0 +1,486 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * Author: Bayi Cheng + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MTK_NOR_CMD_REG 0x00 +#define MTK_NOR_CNT_REG 0x04 +#define MTK_NOR_RDSR_REG 0x08 +#define MTK_NOR_RDATA_REG 0x0c +#define MTK_NOR_RADR0_REG 0x10 +#define MTK_NOR_RADR1_REG 0x14 +#define MTK_NOR_RADR2_REG 0x18 +#define MTK_NOR_WDATA_REG 0x1c +#define MTK_NOR_PRGDATA0_REG 0x20 +#define MTK_NOR_PRGDATA1_REG 0x24 +#define MTK_NOR_PRGDATA2_REG 0x28 +#define MTK_NOR_PRGDATA3_REG 0x2c +#define MTK_NOR_PRGDATA4_REG 0x30 +#define MTK_NOR_PRGDATA5_REG 0x34 +#define MTK_NOR_SHREG0_REG 0x38 +#define MTK_NOR_SHREG1_REG 0x3c +#define MTK_NOR_SHREG2_REG 0x40 +#define MTK_NOR_SHREG3_REG 0x44 +#define MTK_NOR_SHREG4_REG 0x48 +#define MTK_NOR_SHREG5_REG 0x4c +#define MTK_NOR_SHREG6_REG 0x50 +#define MTK_NOR_SHREG7_REG 0x54 +#define MTK_NOR_SHREG8_REG 0x58 +#define MTK_NOR_SHREG9_REG 0x5c +#define MTK_NOR_CFG1_REG 0x60 +#define MTK_NOR_CFG2_REG 0x64 +#define MTK_NOR_CFG3_REG 0x68 +#define MTK_NOR_STATUS0_REG 0x70 +#define MTK_NOR_STATUS1_REG 0x74 +#define MTK_NOR_STATUS2_REG 0x78 +#define MTK_NOR_STATUS3_REG 0x7c +#define MTK_NOR_FLHCFG_REG 0x84 +#define MTK_NOR_TIME_REG 0x94 +#define MTK_NOR_PP_DATA_REG 0x98 +#define MTK_NOR_PREBUF_STUS_REG 0x9c +#define MTK_NOR_DELSEL0_REG 0xa0 +#define MTK_NOR_DELSEL1_REG 0xa4 +#define MTK_NOR_INTRSTUS_REG 0xa8 +#define MTK_NOR_INTREN_REG 0xac +#define MTK_NOR_CHKSUM_CTL_REG 0xb8 +#define MTK_NOR_CHKSUM_REG 0xbc +#define MTK_NOR_CMD2_REG 0xc0 +#define MTK_NOR_WRPROT_REG 0xc4 +#define MTK_NOR_RADR3_REG 0xc8 +#define MTK_NOR_DUAL_REG 0xcc +#define MTK_NOR_DELSEL2_REG 0xd0 +#define MTK_NOR_DELSEL3_REG 0xd4 +#define MTK_NOR_DELSEL4_REG 0xd8 + +/* commands for mtk nor controller */ +#define MTK_NOR_READ_CMD 0x0 +#define MTK_NOR_RDSR_CMD 0x2 +#define MTK_NOR_PRG_CMD 0x4 +#define MTK_NOR_WR_CMD 0x10 +#define MTK_NOR_PIO_WR_CMD 0x90 +#define MTK_NOR_WRSR_CMD 0x20 +#define MTK_NOR_PIO_READ_CMD 0x81 +#define MTK_NOR_WR_BUF_ENABLE 0x1 +#define MTK_NOR_WR_BUF_DISABLE 0x0 +#define MTK_NOR_ENABLE_SF_CMD 0x30 +#define MTK_NOR_DUAD_ADDR_EN 0x8 +#define MTK_NOR_QUAD_READ_EN 0x4 +#define MTK_NOR_DUAL_ADDR_EN 0x2 +#define MTK_NOR_DUAL_READ_EN 0x1 +#define MTK_NOR_DUAL_DISABLE 0x0 +#define MTK_NOR_FAST_READ 0x1 + +#define SFLASH_WRBUF_SIZE 128 + +/* Can shift up to 48 bits (6 bytes) of TX/RX */ +#define MTK_NOR_MAX_RX_TX_SHIFT 6 +/* can shift up to 56 bits (7 bytes) transfer by MTK_NOR_PRG_CMD */ +#define MTK_NOR_MAX_SHIFT 7 + +/* Helpers for accessing the program data / shift data registers */ +#define MTK_NOR_PRG_REG(n) (MTK_NOR_PRGDATA0_REG + 4 * (n)) +#define MTK_NOR_SHREG(n) (MTK_NOR_SHREG0_REG + 4 * (n)) + +struct mt8173_nor { + struct spi_nor nor; + struct device *dev; + void __iomem *base; /* nor flash base address */ + struct clk *spi_clk; + struct clk *nor_clk; +}; + +static void mt8173_nor_set_read_mode(struct mt8173_nor *mt8173_nor) +{ + struct spi_nor *nor = &mt8173_nor->nor; + + switch (nor->flash_read) { + case SPI_NOR_FAST: + writeb(nor->read_opcode, mt8173_nor->base + + MTK_NOR_PRGDATA3_REG); + writeb(MTK_NOR_FAST_READ, mt8173_nor->base + + MTK_NOR_CFG1_REG); + break; + case SPI_NOR_DUAL: + writeb(nor->read_opcode, mt8173_nor->base + + MTK_NOR_PRGDATA3_REG); + writeb(MTK_NOR_DUAL_READ_EN, mt8173_nor->base + + MTK_NOR_DUAL_REG); + break; + case SPI_NOR_QUAD: + writeb(nor->read_opcode, mt8173_nor->base + + MTK_NOR_PRGDATA4_REG); + writeb(MTK_NOR_QUAD_READ_EN, mt8173_nor->base + + MTK_NOR_DUAL_REG); + break; + default: + writeb(MTK_NOR_DUAL_DISABLE, mt8173_nor->base + + MTK_NOR_DUAL_REG); + break; + } +} + +static int mt8173_nor_execute_cmd(struct mt8173_nor *mt8173_nor, u8 cmdval) +{ + int reg; + u8 val = cmdval & 0x1f; + + writeb(cmdval, mt8173_nor->base + MTK_NOR_CMD_REG); + return readl_poll_timeout(mt8173_nor->base + MTK_NOR_CMD_REG, reg, + !(reg & val), 100, 10000); +} + +static int mt8173_nor_do_tx_rx(struct mt8173_nor *mt8173_nor, u8 op, + u8 *tx, int txlen, u8 *rx, int rxlen) +{ + int len = 1 + txlen + rxlen; + int i, ret, idx; + + if (len > MTK_NOR_MAX_SHIFT) + return -EINVAL; + + writeb(len * 8, mt8173_nor->base + MTK_NOR_CNT_REG); + + /* start at PRGDATA5, go down to PRGDATA0 */ + idx = MTK_NOR_MAX_RX_TX_SHIFT - 1; + + /* opcode */ + writeb(op, mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + idx--; + + /* program TX data */ + for (i = 0; i < txlen; i++, idx--) + writeb(tx[i], mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + + /* clear out rest of TX registers */ + while (idx >= 0) { + writeb(0, mt8173_nor->base + MTK_NOR_PRG_REG(idx)); + idx--; + } + + ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PRG_CMD); + if (ret) + return ret; + + /* restart at first RX byte */ + idx = rxlen - 1; + + /* read out RX data */ + for (i = 0; i < rxlen; i++, idx--) + rx[i] = readb(mt8173_nor->base + MTK_NOR_SHREG(idx)); + + return 0; +} + +/* Do a WRSR (Write Status Register) command */ +static int mt8173_nor_wr_sr(struct mt8173_nor *mt8173_nor, u8 sr) +{ + writeb(sr, mt8173_nor->base + MTK_NOR_PRGDATA5_REG); + writeb(8, mt8173_nor->base + MTK_NOR_CNT_REG); + return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WRSR_CMD); +} + +static int mt8173_nor_write_buffer_enable(struct mt8173_nor *mt8173_nor) +{ + u8 reg; + + /* the bit0 of MTK_NOR_CFG2_REG is pre-fetch buffer + * 0: pre-fetch buffer use for read + * 1: pre-fetch buffer use for page program + */ + writel(MTK_NOR_WR_BUF_ENABLE, mt8173_nor->base + MTK_NOR_CFG2_REG); + return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg, + 0x01 == (reg & 0x01), 100, 10000); +} + +static int mt8173_nor_write_buffer_disable(struct mt8173_nor *mt8173_nor) +{ + u8 reg; + + writel(MTK_NOR_WR_BUF_DISABLE, mt8173_nor->base + MTK_NOR_CFG2_REG); + return readb_poll_timeout(mt8173_nor->base + MTK_NOR_CFG2_REG, reg, + MTK_NOR_WR_BUF_DISABLE == (reg & 0x1), 100, + 10000); +} + +static void mt8173_nor_set_addr(struct mt8173_nor *mt8173_nor, u32 addr) +{ + int i; + + for (i = 0; i < 3; i++) { + writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR0_REG + i * 4); + addr >>= 8; + } + /* Last register is non-contiguous */ + writeb(addr & 0xff, mt8173_nor->base + MTK_NOR_RADR3_REG); +} + +static int mt8173_nor_read(struct spi_nor *nor, loff_t from, size_t length, + size_t *retlen, u_char *buffer) +{ + int i, ret; + int addr = (int)from; + u8 *buf = (u8 *)buffer; + struct mt8173_nor *mt8173_nor = nor->priv; + + /* set mode for fast read mode ,dual mode or quad mode */ + mt8173_nor_set_read_mode(mt8173_nor); + mt8173_nor_set_addr(mt8173_nor, addr); + + for (i = 0; i < length; i++, (*retlen)++) { + ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_READ_CMD); + if (ret < 0) + return ret; + buf[i] = readb(mt8173_nor->base + MTK_NOR_RDATA_REG); + } + return 0; +} + +static int mt8173_nor_write_single_byte(struct mt8173_nor *mt8173_nor, + int addr, int length, u8 *data) +{ + int i, ret; + + mt8173_nor_set_addr(mt8173_nor, addr); + + for (i = 0; i < length; i++) { + ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_WR_CMD); + if (ret < 0) + return ret; + writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG); + } + return 0; +} + +static int mt8173_nor_write_buffer(struct mt8173_nor *mt8173_nor, int addr, + const u8 *buf) +{ + int i, bufidx, data; + + mt8173_nor_set_addr(mt8173_nor, addr); + + bufidx = 0; + for (i = 0; i < SFLASH_WRBUF_SIZE; i += 4) { + data = buf[bufidx + 3]<<24 | buf[bufidx + 2]<<16 | + buf[bufidx + 1]<<8 | buf[bufidx]; + bufidx += 4; + writel(data, mt8173_nor->base + MTK_NOR_PP_DATA_REG); + } + return mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_WR_CMD); +} + +static void mt8173_nor_write(struct spi_nor *nor, loff_t to, size_t len, + size_t *retlen, const u_char *buf) +{ + int ret; + struct mt8173_nor *mt8173_nor = nor->priv; + + ret = mt8173_nor_write_buffer_enable(mt8173_nor); + if (ret < 0) + dev_warn(mt8173_nor->dev, "write buffer enable failed!\n"); + + while (len >= SFLASH_WRBUF_SIZE) { + ret = mt8173_nor_write_buffer(mt8173_nor, to, buf); + if (ret < 0) + dev_err(mt8173_nor->dev, "write buffer failed!\n"); + len -= SFLASH_WRBUF_SIZE; + to += SFLASH_WRBUF_SIZE; + buf += SFLASH_WRBUF_SIZE; + (*retlen) += SFLASH_WRBUF_SIZE; + } + ret = mt8173_nor_write_buffer_disable(mt8173_nor); + if (ret < 0) + dev_warn(mt8173_nor->dev, "write buffer disable failed!\n"); + + if (len) { + ret = mt8173_nor_write_single_byte(mt8173_nor, to, (int)len, + (u8 *)buf); + if (ret < 0) + dev_err(mt8173_nor->dev, "write single byte failed!\n"); + (*retlen) += len; + } +} + +static int mt8173_nor_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) +{ + int ret; + struct mt8173_nor *mt8173_nor = nor->priv; + + switch (opcode) { + case SPINOR_OP_RDSR: + ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_RDSR_CMD); + if (ret < 0) + return ret; + if (len == 1) + *buf = readb(mt8173_nor->base + MTK_NOR_RDSR_REG); + else + dev_err(mt8173_nor->dev, "len should be 1 for read status!\n"); + break; + default: + ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, NULL, 0, buf, len); + break; + } + return ret; +} + +static int mt8173_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, + int len) +{ + int ret; + struct mt8173_nor *mt8173_nor = nor->priv; + + switch (opcode) { + case SPINOR_OP_WRSR: + /* We only handle 1 byte */ + ret = mt8173_nor_wr_sr(mt8173_nor, *buf); + break; + default: + ret = mt8173_nor_do_tx_rx(mt8173_nor, opcode, buf, len, NULL, 0); + if (ret) + dev_warn(mt8173_nor->dev, "write reg failure!\n"); + break; + } + return ret; +} + +static int __init mtk_nor_init(struct mt8173_nor *mt8173_nor, + struct device_node *flash_node) +{ + int ret; + struct spi_nor *nor; + + /* initialize controller to accept commands */ + writel(MTK_NOR_ENABLE_SF_CMD, mt8173_nor->base + MTK_NOR_WRPROT_REG); + + nor = &mt8173_nor->nor; + nor->dev = mt8173_nor->dev; + nor->priv = mt8173_nor; + spi_nor_set_flash_node(nor, flash_node); + + /* fill the hooks to spi nor */ + nor->read = mt8173_nor_read; + nor->read_reg = mt8173_nor_read_reg; + nor->write = mt8173_nor_write; + nor->write_reg = mt8173_nor_write_reg; + nor->mtd.owner = THIS_MODULE; + nor->mtd.name = "mtk_nor"; + /* initialized with NULL */ + ret = spi_nor_scan(nor, NULL, SPI_NOR_DUAL); + if (ret) + return ret; + + return mtd_device_register(&nor->mtd, NULL, 0); +} + +static int mtk_nor_drv_probe(struct platform_device *pdev) +{ + struct device_node *flash_np; + struct resource *res; + int ret; + struct mt8173_nor *mt8173_nor; + + if (!pdev->dev.of_node) { + dev_err(&pdev->dev, "No DT found\n"); + return -EINVAL; + } + + mt8173_nor = devm_kzalloc(&pdev->dev, sizeof(*mt8173_nor), GFP_KERNEL); + if (!mt8173_nor) + return -ENOMEM; + platform_set_drvdata(pdev, mt8173_nor); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mt8173_nor->base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mt8173_nor->base)) + return PTR_ERR(mt8173_nor->base); + + mt8173_nor->spi_clk = devm_clk_get(&pdev->dev, "spi"); + if (IS_ERR(mt8173_nor->spi_clk)) + return PTR_ERR(mt8173_nor->spi_clk); + + mt8173_nor->nor_clk = devm_clk_get(&pdev->dev, "sf"); + if (IS_ERR(mt8173_nor->nor_clk)) + return PTR_ERR(mt8173_nor->nor_clk); + + mt8173_nor->dev = &pdev->dev; + ret = clk_prepare_enable(mt8173_nor->spi_clk); + if (ret) + return ret; + + ret = clk_prepare_enable(mt8173_nor->nor_clk); + if (ret) { + clk_disable_unprepare(mt8173_nor->spi_clk); + return ret; + } + /* only support one attached flash */ + flash_np = of_get_next_available_child(pdev->dev.of_node, NULL); + if (!flash_np) { + dev_err(&pdev->dev, "no SPI flash device to configure\n"); + ret = -ENODEV; + goto nor_free; + } + ret = mtk_nor_init(mt8173_nor, flash_np); + +nor_free: + if (ret) { + clk_disable_unprepare(mt8173_nor->spi_clk); + clk_disable_unprepare(mt8173_nor->nor_clk); + } + return ret; +} + +static int mtk_nor_drv_remove(struct platform_device *pdev) +{ + struct mt8173_nor *mt8173_nor = platform_get_drvdata(pdev); + + clk_disable_unprepare(mt8173_nor->spi_clk); + clk_disable_unprepare(mt8173_nor->nor_clk); + return 0; +} + +static const struct of_device_id mtk_nor_of_ids[] = { + { .compatible = "mediatek,mt8173-nor"}, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, mtk_nor_of_ids); + +static struct platform_driver mtk_nor_driver = { + .probe = mtk_nor_drv_probe, + .remove = mtk_nor_drv_remove, + .driver = { + .name = "mtk-nor", + .of_match_table = mtk_nor_of_ids, + }, +}; + +module_platform_driver(mtk_nor_driver); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("MediaTek SPI NOR Flash Driver"); -- cgit v1.2.3 From 2c81de771f38e54324ede3f24118f4852570b384 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Thu, 26 Nov 2015 09:05:04 +0100 Subject: mtd: spi-nor: include mtd.h header for struct mtd_info definition MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit So far struct spi_nor was using just a pointer to struct mtd_info so it wasn't needed to have it fully defined there. After recent change we embed whole struct so we need to include a proper header. Fixes: 1976367173a4 ("mtd: spi-nor: embed struct mtd_info within struct spi_nor") Signed-off-by: RafaÅ‚ MiÅ‚ecki Signed-off-by: Brian Norris --- include/linux/mtd/spi-nor.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index 7bed97471e53..fac3f6f53981 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -12,6 +12,7 @@ #include #include +#include /* * Manufacturer IDs @@ -117,8 +118,6 @@ enum spi_nor_option_flags { SNOR_F_USE_FSR = BIT(0), }; -struct mtd_info; - /** * struct spi_nor - Structure for defining a the SPI NOR layer * @mtd: point to a mtd_info structure -- cgit v1.2.3 From f5f92b36fbbb8ac7d70ff5fa39ec2637cce3094c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 23 Nov 2015 14:39:33 +0100 Subject: mtd: cfi: enforce valid geometry configuration MTD allows compile-time configuration of the possible CFI geometry settings that are allowed by the kernel, but that includes a couple of invalid configurations, where no bank width or no interleave setting is allowed. These are then caught with a compile-time warning: include/linux/mtd/cfi.h:76:2: warning: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. include/linux/mtd/map.h:145:2: warning: #warning "No CONFIG_MTD_MAP_BANK_WIDTH_xx selected. No NOR chip support can work" This is a bit annoying for randconfig tests, and can be avoided if we change the Kconfig logic to always select the simplest configuration when no other one is enabled. Signed-off-by: Arnd Bergmann Signed-off-by: Brian Norris --- drivers/mtd/chips/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig index 54479c481a7a..3b3dabce58de 100644 --- a/drivers/mtd/chips/Kconfig +++ b/drivers/mtd/chips/Kconfig @@ -67,6 +67,10 @@ endchoice config MTD_CFI_GEOMETRY bool "Specific CFI Flash geometry selection" depends on MTD_CFI_ADV_OPTIONS + select MTD_MAP_BANK_WIDTH_1 if !(MTD_MAP_BANK_WIDTH_2 || \ + MTD_MAP_BANK_WIDTH_4 || MTD_MAP_BANK_WIDTH_8 || \ + MTD_MAP_BANK_WIDTH_16 || MTD_MAP_BANK_WIDTH_32) + select MTD_CFI_I1 if !(MTD_CFI_I2 || MTD_CFI_I4 || MTD_CFI_I8) help This option does not affect the code directly, but will enable some other configuration options which would allow you to reduce -- cgit v1.2.3 From fe7579d6122f2869d00b55842bca9e2a9be51607 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 24 Nov 2015 23:09:02 +0100 Subject: mtd: cfi: don't warn about broken geometry for !CONFIG_MTD The linux/mtd/map.h header file is included by a couple of platform specific files that are built even when CONFIG_MTD is disabled, and we always get warning "No CONFIG_MTD_MAP_BANK_WIDTH_xx selected. No NOR chip support can work" in that case. This adds an #ifdef around the pointless warning, as everything is really fine when we don't build the drivers anyway. Signed-off-by: Arnd Bergmann Signed-off-by: Brian Norris --- include/linux/mtd/map.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h index 366cf77953b5..58f3ba709ade 100644 --- a/include/linux/mtd/map.h +++ b/include/linux/mtd/map.h @@ -142,7 +142,9 @@ #endif #ifndef map_bankwidth +#ifdef CONFIG_MTD #warning "No CONFIG_MTD_MAP_BANK_WIDTH_xx selected. No NOR chip support can work" +#endif static inline int map_bankwidth(void *map) { BUG(); -- cgit v1.2.3 From 0401669797488feb055521cade69b1d0e81669db Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Mon, 16 Nov 2015 22:05:39 +0000 Subject: brcmnand: Clear EXT_ADDR error registers in PIO mode If an error occurs in flash above 4GB in PIO mode then the EXT_ADDR registers will be set to the location of the error and never cleared. Reset them to 0 before reading. Signed-off-by: Simon Arlott Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 626a80eb76a1..8feee1e489cb 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1405,6 +1405,8 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip, /* Clear error addresses */ brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_ADDR, 0); brcmnand_write_reg(ctrl, BRCMNAND_CORR_ADDR, 0); + brcmnand_write_reg(ctrl, BRCMNAND_UNCORR_EXT_ADDR, 0); + brcmnand_write_reg(ctrl, BRCMNAND_CORR_EXT_ADDR, 0); brcmnand_write_reg(ctrl, BRCMNAND_CMD_EXT_ADDRESS, (host->cs << 16) | ((addr >> 32) & 0xffff)); -- cgit v1.2.3 From 081976bcc0cbc84f5164fb7aa0e5cf597df6de9e Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 19 Nov 2015 22:32:15 +0100 Subject: mtd: brcmnand: improve memory management This patch addresses two related memory management issues in the probe function: 1. for_each_available_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ expression root,e; local idexpression child; @@ for_each_available_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | + of_node_put(child); ? return ...; ) ... } // 2. The devm_kzalloc'd data is not used if brcmnand_init_cs fails. Free it immediately, using devm_kfree in this case, instead of waiting for the remove function. Signed-off-by: Julia Lawall Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 8feee1e489cb..ad756f626f4b 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -2233,15 +2233,19 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) struct brcmnand_host *host; host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); - if (!host) + if (!host) { + of_node_put(child); return -ENOMEM; + } host->pdev = pdev; host->ctrl = ctrl; host->of_node = child; ret = brcmnand_init_cs(host); - if (ret) + if (ret) { + devm_kfree(dev, host); continue; /* Try all chip-selects */ + } list_add_tail(&host->node, &ctrl->host_list); } -- cgit v1.2.3 From a81c0f07b4a7559eecebf77bcc1956d9d777b006 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 18 Nov 2015 23:04:12 +0100 Subject: mtd: nand: sunxi: add missing of_node_put for_each_child_of_node performs an of_node_get on each iteration, so a break out of the loop requires an of_node_put. A simplified version of the semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ expression root,e; local idexpression child; @@ for_each_child_of_node(root, child) { ... when != of_node_put(child) when != e = child ( return child; | + of_node_put(child); ? return ...; ) ... } // Signed-off-by: Julia Lawall Acked-by: Chen-Yu Tsai Acked-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/sunxi_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 2ed52e466ea6..1bbcc0c2aab5 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1391,8 +1391,10 @@ static int sunxi_nand_chips_init(struct device *dev, struct sunxi_nfc *nfc) for_each_child_of_node(np, nand_np) { ret = sunxi_nand_chip_init(dev, nfc, nand_np); - if (ret) + if (ret) { + of_node_put(nand_np); return ret; + } } return 0; -- cgit v1.2.3 From 9b9f1033da9166617c4a5cadfc12b23b465fb596 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda Date: Mon, 30 Nov 2015 20:41:17 +0100 Subject: mtd: spi-nor: Fix error message with unrecognized JEDEC The error message was: m25p80 spi32766.0: unrecognized JEDEC id bytes: 00, 0, 0 The new error message: m25p80 spi32766.0: unrecognized JEDEC id bytes: 00, 00, 00 Signed-off-by: Ricardo Ribalda Delgado Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index b7c038c75684..f8a9b77aac76 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -890,7 +890,7 @@ static const struct flash_info *spi_nor_read_id(struct spi_nor *nor) return &spi_nor_ids[tmp]; } } - dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %2x, %2x\n", + dev_err(nor->dev, "unrecognized JEDEC id bytes: %02x, %02x, %02x\n", id[0], id[1], id[2]); return ERR_PTR(-ENODEV); } -- cgit v1.2.3 From de64aa9ec129ba627634088f662a4d09e356ddb6 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 23 Nov 2015 11:23:07 +0100 Subject: mtd: nand: fix ONFI parameter page layout src_ssync_features field is only 1 byte large, and the 4th reserved area is actually 8 bytes large. Fixes: d1e1f4e42b5 ("mtd: nand: add support for reading ONFI parameters from NAND device") Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 056d1650eb89..eaf48b5a95dd 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -276,7 +276,7 @@ struct nand_onfi_params { __le16 t_r; __le16 t_ccs; __le16 src_sync_timing_mode; - __le16 src_ssync_features; + u8 src_ssync_features; __le16 clk_pin_capacitance_typ; __le16 io_pin_capacitance_typ; __le16 input_pin_capacitance_typ; @@ -284,7 +284,7 @@ struct nand_onfi_params { u8 driver_strength_support; __le16 t_int_r; __le16 t_ald; - u8 reserved4[7]; + u8 reserved4[8]; /* vendor */ __le16 vendor_revision; -- cgit v1.2.3 From 74e98be45fe069fcdb00f35eccbb179309ab65cd Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 1 Dec 2015 11:08:32 -0800 Subject: mtd: nand: fix typo (t_ald -> t_adl) It's "ADL" ("ALE to data loading" time) not "ALD". Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- include/linux/mtd/nand.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index eaf48b5a95dd..fad634ea1685 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -283,7 +283,7 @@ struct nand_onfi_params { u8 input_pin_capacitance_max; u8 driver_strength_support; __le16 t_int_r; - __le16 t_ald; + __le16 t_adl; u8 reserved4[8]; /* vendor */ @@ -407,7 +407,7 @@ struct nand_jedec_params { __le16 input_pin_capacitance_typ; __le16 clk_pin_capacitance_typ; u8 driver_strength_support; - __le16 t_ald; + __le16 t_adl; u8 reserved4[36]; /* ECC and endurance block */ -- cgit v1.2.3 From d121b66d25adfa8b631dc59511ebc1d600ad5111 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 30 Nov 2015 18:01:27 -0800 Subject: mtd: brcmnand: drop brcmnand_host::of_node field We don't actually need to stash a copy of this device_node indefinitely; we only need it in brcmnand_init_cs(). Signed-off-by: Brian Norris Cc: Cc: Kamal Dasu Acked-by: Scott Branden Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index ad756f626f4b..35d78f739d91 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -176,7 +176,6 @@ struct brcmnand_cfg { struct brcmnand_host { struct list_head node; - struct device_node *of_node; struct nand_chip chip; struct mtd_info mtd; @@ -1902,10 +1901,9 @@ static int brcmnand_setup_dev(struct brcmnand_host *host) return 0; } -static int brcmnand_init_cs(struct brcmnand_host *host) +static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn) { struct brcmnand_controller *ctrl = host->ctrl; - struct device_node *dn = host->of_node; struct platform_device *pdev = host->pdev; struct mtd_info *mtd; struct nand_chip *chip; @@ -2239,9 +2237,8 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) } host->pdev = pdev; host->ctrl = ctrl; - host->of_node = child; - ret = brcmnand_init_cs(host); + ret = brcmnand_init_cs(host, child); if (ret) { devm_kfree(dev, host); continue; /* Try all chip-selects */ -- cgit v1.2.3 From 2524534dbb2372a666f30e0da2f97cd7f0d7f76c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 19 Nov 2015 19:28:39 -0800 Subject: mtd: partitions: turn PART() macro into inline function We can guard against reorganization of struct mtd_part by using container_of(). We can also make sure we're using the right pointer types by making this a static inline function instead of a macro. Signed-off-by: Brian Norris --- drivers/mtd/mtdpart.c | 63 +++++++++++++++++++++++++++------------------------ 1 file changed, 33 insertions(+), 30 deletions(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 1fa3ca95d9c1..c32b127b1976 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -48,9 +48,12 @@ struct mtd_part { /* * Given a pointer to the MTD object in the mtd_part structure, we can retrieve - * the pointer to that structure with this macro. + * the pointer to that structure. */ -#define PART(x) ((struct mtd_part *)(x)) +static inline struct mtd_part *mtd_to_part(const struct mtd_info *mtd) +{ + return container_of(mtd, struct mtd_part, mtd); +} /* @@ -61,7 +64,7 @@ struct mtd_part { static int part_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); struct mtd_ecc_stats stats; int res; @@ -80,7 +83,7 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len, static int part_point(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, void **virt, resource_size_t *phys) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_point(part->master, from + part->offset, len, retlen, virt, phys); @@ -88,7 +91,7 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len, static int part_unpoint(struct mtd_info *mtd, loff_t from, size_t len) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_unpoint(part->master, from + part->offset, len); } @@ -98,7 +101,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd, unsigned long offset, unsigned long flags) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); offset += part->offset; return part->master->_get_unmapped_area(part->master, len, offset, @@ -108,7 +111,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd, static int part_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); int res; if (from >= mtd->size) @@ -146,7 +149,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from, static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_read_user_prot_reg(part->master, from, len, retlen, buf); } @@ -154,7 +157,7 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from, static int part_get_user_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen, struct otp_info *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_get_user_prot_info(part->master, len, retlen, buf); } @@ -162,7 +165,7 @@ static int part_get_user_prot_info(struct mtd_info *mtd, size_t len, static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_read_fact_prot_reg(part->master, from, len, retlen, buf); } @@ -170,7 +173,7 @@ static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from, static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len, size_t *retlen, struct otp_info *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_get_fact_prot_info(part->master, len, retlen, buf); } @@ -178,7 +181,7 @@ static int part_get_fact_prot_info(struct mtd_info *mtd, size_t len, static int part_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_write(part->master, to + part->offset, len, retlen, buf); } @@ -186,7 +189,7 @@ static int part_write(struct mtd_info *mtd, loff_t to, size_t len, static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_panic_write(part->master, to + part->offset, len, retlen, buf); } @@ -194,7 +197,7 @@ static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len, static int part_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); if (to >= mtd->size) return -EINVAL; @@ -206,7 +209,7 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to, static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_write_user_prot_reg(part->master, from, len, retlen, buf); } @@ -214,21 +217,21 @@ static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from, static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, size_t len) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_lock_user_prot_reg(part->master, from, len); } static int part_writev(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_writev(part->master, vecs, count, to + part->offset, retlen); } static int part_erase(struct mtd_info *mtd, struct erase_info *instr) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); int ret; instr->addr += part->offset; @@ -244,7 +247,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr) void mtd_erase_callback(struct erase_info *instr) { if (instr->mtd->_erase == part_erase) { - struct mtd_part *part = PART(instr->mtd); + struct mtd_part *part = mtd_to_part(instr->mtd); if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN) instr->fail_addr -= part->offset; @@ -257,57 +260,57 @@ EXPORT_SYMBOL_GPL(mtd_erase_callback); static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_lock(part->master, ofs + part->offset, len); } static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_unlock(part->master, ofs + part->offset, len); } static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_is_locked(part->master, ofs + part->offset, len); } static void part_sync(struct mtd_info *mtd) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); part->master->_sync(part->master); } static int part_suspend(struct mtd_info *mtd) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return part->master->_suspend(part->master); } static void part_resume(struct mtd_info *mtd) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); part->master->_resume(part->master); } static int part_block_isreserved(struct mtd_info *mtd, loff_t ofs) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); ofs += part->offset; return part->master->_block_isreserved(part->master, ofs); } static int part_block_isbad(struct mtd_info *mtd, loff_t ofs) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); ofs += part->offset; return part->master->_block_isbad(part->master, ofs); } static int part_block_markbad(struct mtd_info *mtd, loff_t ofs) { - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); int res; ofs += part->offset; @@ -558,7 +561,7 @@ static ssize_t mtd_partition_offset_show(struct device *dev, struct device_attribute *attr, char *buf) { struct mtd_info *mtd = dev_get_drvdata(dev); - struct mtd_part *part = PART(mtd); + struct mtd_part *part = mtd_to_part(mtd); return snprintf(buf, PAGE_SIZE, "%lld\n", part->offset); } @@ -814,6 +817,6 @@ uint64_t mtd_get_device_size(const struct mtd_info *mtd) if (!mtd_is_partition(mtd)) return mtd->size; - return PART(mtd)->master->size; + return mtd_to_part(mtd)->master->size; } EXPORT_SYMBOL_GPL(mtd_get_device_size); -- cgit v1.2.3 From 0f6d3f4097d2746925986af5e34b864c5f6b2682 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 20 Nov 2015 17:38:33 -0800 Subject: mtd: mtk-quadspi: drop unnecessary .owner assignment As of commit 807f16d4db95 ("mtd: core: set some defaults when dev.parent is set"), the MTD core will set this for us. Signed-off-by: Brian Norris Cc: Bayi Cheng --- drivers/mtd/spi-nor/mtk-quadspi.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c index dd269650cd16..e1dd9fd16fbe 100644 --- a/drivers/mtd/spi-nor/mtk-quadspi.c +++ b/drivers/mtd/spi-nor/mtk-quadspi.c @@ -390,7 +390,6 @@ static int __init mtk_nor_init(struct mt8173_nor *mt8173_nor, nor->read_reg = mt8173_nor_read_reg; nor->write = mt8173_nor_write; nor->write_reg = mt8173_nor_write_reg; - nor->mtd.owner = THIS_MODULE; nor->mtd.name = "mtk_nor"; /* initialized with NULL */ ret = spi_nor_scan(nor, NULL, SPI_NOR_DUAL); -- cgit v1.2.3 From d6af26944a02e6d325b82160d52e08dc4e315396 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 17 Nov 2015 20:18:54 +0100 Subject: mtd: spi-nor: fix error handling in spi_nor_erase The documenting comment of mtd_erase in mtdcore.c states: Device drivers are supposed to call instr->callback() whenever the operation completes, even if it completes with a failure. Currently the callback isn't called in case of failure. Fix this. Signed-off-by: Heiner Kallweit Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index f8a9b77aac76..3b2460efc019 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -410,17 +410,13 @@ static int spi_nor_erase(struct mtd_info *mtd, struct erase_info *instr) write_disable(nor); +erase_err: spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_ERASE); - instr->state = MTD_ERASE_DONE; + instr->state = ret ? MTD_ERASE_FAILED : MTD_ERASE_DONE; mtd_erase_callback(instr); return ret; - -erase_err: - spi_nor_unlock_and_unprep(nor, SPI_NOR_OPS_ERASE); - instr->state = MTD_ERASE_FAILED; - return ret; } static void stm_get_locked_range(struct spi_nor *nor, u8 sr, loff_t *ofs, -- cgit v1.2.3 From 41849d49d7d5307d7399314b59fb16d1c39ce0f0 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sat, 21 Nov 2015 12:14:44 +0100 Subject: mtd: nand: r852: Remove unnecessary synchronize_irq() before free_irq() Calling synchronize_irq() right before free_irq() is quite useless. On one hand the IRQ can easily fire again before free_irq() is entered, on the other hand free_irq() itself calls synchronize_irq() internally (in a race condition free way), before any state associated with the IRQ is freed. Patch was generated using the following semantic patch: // @@ expression irq; @@ -synchronize_irq(irq); free_irq(irq, ...); // Signed-off-by: Lars-Peter Clausen Signed-off-by: Brian Norris --- drivers/mtd/nand/r852.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index d8bb2be327f1..be28cddec9cd 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -980,7 +980,6 @@ static void r852_remove(struct pci_dev *pci_dev) /* Stop interrupts */ r852_disable_irqs(dev); - synchronize_irq(dev->irq); free_irq(dev->irq, dev); /* Cleanup */ -- cgit v1.2.3 From c993e09504fca192bac4ac3f5a3411ac68cba2e6 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:02:58 +0100 Subject: ARM: nand: make use of mtd_to_nand() where appropriate mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all ARM specific implementations to use this helper. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- arch/arm/mach-ep93xx/snappercl15.c | 4 ++-- arch/arm/mach-ep93xx/ts72xx.c | 4 ++-- arch/arm/mach-imx/mach-qong.c | 2 +- arch/arm/mach-ixp4xx/ixdp425-setup.c | 2 +- arch/arm/mach-omap1/board-nand.c | 2 +- arch/arm/mach-orion5x/ts78xx-setup.c | 6 +++--- arch/arm/mach-pxa/balloon3.c | 2 +- arch/arm/mach-pxa/em-x270.c | 2 +- arch/arm/mach-pxa/palmtx.c | 2 +- 9 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/arm/mach-ep93xx/snappercl15.c b/arch/arm/mach-ep93xx/snappercl15.c index c4904264256a..b2db791b3b38 100644 --- a/arch/arm/mach-ep93xx/snappercl15.c +++ b/arch/arm/mach-ep93xx/snappercl15.c @@ -49,7 +49,7 @@ static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); static u16 nand_state = SNAPPERCL15_NAND_WPN; u16 set; @@ -76,7 +76,7 @@ static void snappercl15_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, static int snappercl15_nand_dev_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); return !!(__raw_readw(NAND_CTRL_ADDR(chip)) & SNAPPERCL15_NAND_RDY); } diff --git a/arch/arm/mach-ep93xx/ts72xx.c b/arch/arm/mach-ep93xx/ts72xx.c index 61f4b5dc4d7d..45b81a2bcd4b 100644 --- a/arch/arm/mach-ep93xx/ts72xx.c +++ b/arch/arm/mach-ep93xx/ts72xx.c @@ -74,7 +74,7 @@ static void __init ts72xx_map_io(void) static void ts72xx_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (ctrl & NAND_CTRL_CHANGE) { void __iomem *addr = chip->IO_ADDR_R; @@ -96,7 +96,7 @@ static void ts72xx_nand_hwcontrol(struct mtd_info *mtd, static int ts72xx_nand_device_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); void __iomem *addr = chip->IO_ADDR_R; addr += (1 << TS72XX_NAND_BUSY_ADDR_LINE); diff --git a/arch/arm/mach-imx/mach-qong.c b/arch/arm/mach-imx/mach-qong.c index a213e7b9cb1c..5c2764604727 100644 --- a/arch/arm/mach-imx/mach-qong.c +++ b/arch/arm/mach-imx/mach-qong.c @@ -131,7 +131,7 @@ static void qong_init_nor_mtd(void) */ static void qong_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); if (cmd == NAND_CMD_NONE) return; diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index e7b8befa8729..333b0f9ea635 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -76,7 +76,7 @@ static struct mtd_partition ixdp425_partitions[] = { static void ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int offset = (int)this->priv; if (ctrl & NAND_CTRL_CHANGE) { diff --git a/arch/arm/mach-omap1/board-nand.c b/arch/arm/mach-omap1/board-nand.c index 4d0835327d20..7684f9203474 100644 --- a/arch/arm/mach-omap1/board-nand.c +++ b/arch/arm/mach-omap1/board-nand.c @@ -22,7 +22,7 @@ void omap1_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long mask; if (cmd == NAND_CMD_NONE) diff --git a/arch/arm/mach-orion5x/ts78xx-setup.c b/arch/arm/mach-orion5x/ts78xx-setup.c index 1b704d35cf5b..96cf6b51eddc 100644 --- a/arch/arm/mach-orion5x/ts78xx-setup.c +++ b/arch/arm/mach-orion5x/ts78xx-setup.c @@ -176,7 +176,7 @@ static void ts78xx_ts_rtc_unload(void) static void ts78xx_ts_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); if (ctrl & NAND_CTRL_CHANGE) { unsigned char bits; @@ -200,7 +200,7 @@ static int ts78xx_ts_nand_dev_ready(struct mtd_info *mtd) static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); void __iomem *io_base = chip->IO_ADDR_W; unsigned long off = ((unsigned long)buf & 3); int sz; @@ -227,7 +227,7 @@ static void ts78xx_ts_nand_write_buf(struct mtd_info *mtd, static void ts78xx_ts_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); void __iomem *io_base = chip->IO_ADDR_R; unsigned long off = ((unsigned long)buf & 3); int sz; diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c index a727282bfa99..7734ec4f1385 100644 --- a/arch/arm/mach-pxa/balloon3.c +++ b/arch/arm/mach-pxa/balloon3.c @@ -572,7 +572,7 @@ static inline void balloon3_i2c_init(void) {} #if defined(CONFIG_MTD_NAND_PLATFORM)||defined(CONFIG_MTD_NAND_PLATFORM_MODULE) static void balloon3_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); uint8_t balloon3_ctl_set = 0, balloon3_ctl_clr = 0; if (ctrl & NAND_CTRL_CHANGE) { diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index 9d7072b04045..38600a70e3ca 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -289,7 +289,7 @@ static void nand_cs_off(void) static void em_x270_nand_cmd_ctl(struct mtd_info *mtd, int dat, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long nandaddr = (unsigned long)this->IO_ADDR_W; dsb(); diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c index 83f830dd8ad8..d787dd17f6b2 100644 --- a/arch/arm/mach-pxa/palmtx.c +++ b/arch/arm/mach-pxa/palmtx.c @@ -250,7 +250,7 @@ static inline void palmtx_keys_init(void) {} static void palmtx_nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); char __iomem *nandaddr = this->IO_ADDR_W; if (cmd == NAND_CMD_NONE) -- cgit v1.2.3 From 7326ffef788dd5823c820a6ac5b5e864e8a486a0 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:02 +0100 Subject: sh: nand: make use of mtd_to_nand() where appropriate mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all SH specific implementations to use this helper. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- arch/sh/boards/mach-migor/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c index 29b7c0dcfc51..8673f91ebd41 100644 --- a/arch/sh/boards/mach-migor/setup.c +++ b/arch/sh/boards/mach-migor/setup.c @@ -167,7 +167,7 @@ static struct mtd_partition migor_nand_flash_partitions[] = { static void migor_nand_flash_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (cmd == NAND_CMD_NONE) return; -- cgit v1.2.3 From 862eba519e79c48fb6ee276081ddb98fe6926f02 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:03 +0100 Subject: mtd: nand: make use of mtd_to_nand() in NAND core code mtd_to_nand() was recently introduced to avoid direct access to the mtd->priv field. Update core code to use mtd_to_nand(). Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nand_base.c | 84 ++++++++++++++++++++++---------------------- drivers/mtd/nand/nand_bbt.c | 32 ++++++++--------- drivers/mtd/nand/nand_bch.c | 4 +-- drivers/mtd/nand/nand_ecc.c | 4 +-- drivers/mtd/nand/nandsim.c | 18 +++++----- 5 files changed, 71 insertions(+), 71 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 0748a13fc2be..5aec1545cd39 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -106,7 +106,7 @@ DEFINE_LED_TRIGGER(nand_led_trigger); static int check_offs_len(struct mtd_info *mtd, loff_t ofs, uint64_t len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret = 0; /* Start address must align on block boundary */ @@ -132,7 +132,7 @@ static int check_offs_len(struct mtd_info *mtd, */ static void nand_release_device(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); /* Release the controller and the chip */ spin_lock(&chip->controller->lock); @@ -150,7 +150,7 @@ static void nand_release_device(struct mtd_info *mtd) */ static uint8_t nand_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); return readb(chip->IO_ADDR_R); } @@ -163,7 +163,7 @@ static uint8_t nand_read_byte(struct mtd_info *mtd) */ static uint8_t nand_read_byte16(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); return (uint8_t) cpu_to_le16(readw(chip->IO_ADDR_R)); } @@ -175,7 +175,7 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd) */ static u16 nand_read_word(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); return readw(chip->IO_ADDR_R); } @@ -188,7 +188,7 @@ static u16 nand_read_word(struct mtd_info *mtd) */ static void nand_select_chip(struct mtd_info *mtd, int chipnr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); switch (chipnr) { case -1: @@ -211,7 +211,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr) */ static void nand_write_byte(struct mtd_info *mtd, uint8_t byte) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); chip->write_buf(mtd, &byte, 1); } @@ -225,7 +225,7 @@ static void nand_write_byte(struct mtd_info *mtd, uint8_t byte) */ static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint16_t word = byte; /* @@ -257,7 +257,7 @@ static void nand_write_byte16(struct mtd_info *mtd, uint8_t byte) */ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); iowrite8_rep(chip->IO_ADDR_W, buf, len); } @@ -272,7 +272,7 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) */ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); ioread8_rep(chip->IO_ADDR_R, buf, len); } @@ -287,7 +287,7 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) */ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u16 *p = (u16 *) buf; iowrite16_rep(chip->IO_ADDR_W, p, len >> 1); @@ -303,7 +303,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) */ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u16 *p = (u16 *) buf; ioread16_rep(chip->IO_ADDR_R, p, len >> 1); @@ -320,7 +320,7 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) { int page, chipnr, res = 0, i = 0; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u16 bad; if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) @@ -380,7 +380,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) */ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mtd_oob_ops ops; uint8_t buf[2] = { 0, 0 }; int ret = 0, res, i = 0; @@ -430,7 +430,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) */ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int res, ret = 0; if (!(chip->bbt_options & NAND_BBT_NO_OOB_BBM)) { @@ -471,7 +471,7 @@ static int nand_block_markbad_lowlevel(struct mtd_info *mtd, loff_t ofs) */ static int nand_check_wp(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); /* Broken xD cards report WP despite being writable */ if (chip->options & NAND_BROKEN_XD) @@ -491,7 +491,7 @@ static int nand_check_wp(struct mtd_info *mtd) */ static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (!chip->bbt) return 0; @@ -512,7 +512,7 @@ static int nand_block_isreserved(struct mtd_info *mtd, loff_t ofs) static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (!chip->bbt) return chip->block_bad(mtd, ofs, getchip); @@ -531,7 +531,7 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, */ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int i; /* Wait for the device to get ready */ @@ -551,7 +551,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo) */ void nand_wait_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); unsigned long timeo = 400; if (in_interrupt() || oops_in_progress) @@ -582,7 +582,7 @@ EXPORT_SYMBOL_GPL(nand_wait_ready); */ static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo) { - register struct nand_chip *chip = mtd->priv; + register struct nand_chip *chip = mtd_to_nand(mtd); timeo = jiffies + msecs_to_jiffies(timeo); do { @@ -605,7 +605,7 @@ static void nand_wait_status_ready(struct mtd_info *mtd, unsigned long timeo) static void nand_command(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - register struct nand_chip *chip = mtd->priv; + register struct nand_chip *chip = mtd_to_nand(mtd); int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE; /* Write out the command to the device */ @@ -708,7 +708,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, static void nand_command_lp(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - register struct nand_chip *chip = mtd->priv; + register struct nand_chip *chip = mtd_to_nand(mtd); /* Emulate NAND_CMD_READOOB */ if (command == NAND_CMD_READOOB) { @@ -832,7 +832,7 @@ static void panic_nand_get_device(struct nand_chip *chip, static int nand_get_device(struct mtd_info *mtd, int new_state) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); spinlock_t *lock = &chip->controller->lock; wait_queue_head_t *wq = &chip->controller->wq; DECLARE_WAITQUEUE(wait, current); @@ -952,7 +952,7 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, { int ret = 0; int status, page; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); /* Submit address of first page to unlock */ page = ofs >> chip->page_shift; @@ -987,7 +987,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { int ret = 0; int chipnr; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); pr_debug("%s: start = 0x%012llx, len = %llu\n", __func__, (unsigned long long)ofs, len); @@ -1050,7 +1050,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { int ret = 0; int chipnr, status, page; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); pr_debug("%s: start = 0x%012llx, len = %llu\n", __func__, (unsigned long long)ofs, len); @@ -1655,7 +1655,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, */ static int nand_setup_read_retry(struct mtd_info *mtd, int retry_mode) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); pr_debug("setting READ RETRY mode %d\n", retry_mode); @@ -1680,7 +1680,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { int chipnr, page, realpage, col, bytes, aligned, oob_required; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret = 0; uint32_t readlen = ops->len; uint32_t oobreadlen = ops->ooblen; @@ -2024,7 +2024,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) { int page, realpage, chipnr; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mtd_ecc_stats stats; int readlen = ops->ooblen; int len; @@ -2472,7 +2472,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len, struct mtd_oob_ops *ops) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); /* * Initialise to all 0xFF, to avoid the possibility of left over OOB @@ -2532,7 +2532,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { int chipnr, realpage, page, blockmask, column; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint32_t writelen = ops->len; uint32_t oobwritelen = ops->ooblen; @@ -2662,7 +2662,7 @@ err_out: static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mtd_oob_ops ops; int ret; @@ -2722,7 +2722,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) { int chipnr, page, status, len; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, (int)ops->ooblen); @@ -2847,7 +2847,7 @@ out: */ static int single_erase(struct mtd_info *mtd, int page) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); /* Send commands to erase a block */ chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page); chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1); @@ -2879,7 +2879,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, int allowbbt) { int page, status, pages_per_block, ret, chipnr; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); loff_t len; pr_debug("%s: start = 0x%012llx, len = %llu\n", @@ -3094,7 +3094,7 @@ static int nand_suspend(struct mtd_info *mtd) */ static void nand_resume(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (chip->state == FL_PM_SUSPENDED) nand_release_device(mtd); @@ -3266,7 +3266,7 @@ ext_out: static int nand_setup_read_retry_micron(struct mtd_info *mtd, int retry_mode) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint8_t feature[ONFI_SUBFEATURE_PARAM_LEN] = {retry_mode}; return chip->onfi_set_features(mtd, chip, ONFI_FEATURE_ADDR_READ_RETRY, @@ -3985,7 +3985,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, struct nand_flash_dev *table) { int i, nand_maf_id, nand_dev_id; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nand_flash_dev *type; int ret; @@ -4056,7 +4056,7 @@ EXPORT_SYMBOL(nand_scan_ident); */ static bool nand_ecc_strength_good(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; int corr, ds_corr; @@ -4085,7 +4085,7 @@ static bool nand_ecc_strength_good(struct mtd_info *mtd) int nand_scan_tail(struct mtd_info *mtd) { int i; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; struct nand_buffers *nbuf; @@ -4429,7 +4429,7 @@ EXPORT_SYMBOL(nand_scan); */ void nand_release(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (chip->ecc.mode == NAND_ECC_SOFT_BCH) nand_bch_free((struct nand_bch_control *)chip->ecc.priv); diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index b1d4f813aedc..4b6a7085b442 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -172,7 +172,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, struct nand_bbt_descr *td, int offs) { int res, ret = 0, i, j, act = 0; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); size_t retlen, len, totlen; loff_t from; int bits = td->options & NAND_BBT_NRBITS_MSK; @@ -263,7 +263,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, */ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int res = 0, i; if (td->options & NAND_BBT_PERCHIP) { @@ -388,7 +388,7 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td) static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); /* Read the primary version, if available */ if (td->options & NAND_BBT_VERSION) { @@ -454,7 +454,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd, int chip) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int i, numblocks, numpages; int startblock; loff_t from; @@ -523,7 +523,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, */ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int i, chips; int startblock, block, dir; int scanlen = mtd->writesize + mtd->oobsize; @@ -618,7 +618,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct erase_info einfo; int i, res, chip = 0; int bits, startblock, dir, page, offs, numblocks, sft, sftmsk; @@ -819,7 +819,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, */ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); return create_bbt(mtd, this->buffers->databuf, bd, -1); } @@ -838,7 +838,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd) { int i, chips, writeops, create, chipsel, res, res2; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct nand_bbt_descr *td = this->bbt_td; struct nand_bbt_descr *md = this->bbt_md; struct nand_bbt_descr *rd, *rd2; @@ -962,7 +962,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc */ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int i, j, chips, block, nrblocks, update; uint8_t oldval; @@ -1022,7 +1022,7 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) */ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u32 pattern_len; u32 bits; u32 table_size; @@ -1074,7 +1074,7 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) */ static int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int len, res; uint8_t *buf; struct nand_bbt_descr *td = this->bbt_td; @@ -1147,7 +1147,7 @@ err: */ static int nand_update_bbt(struct mtd_info *mtd, loff_t offs) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int len, res = 0; int chip, chipsel; uint8_t *buf; @@ -1281,7 +1281,7 @@ static int nand_create_badblock_pattern(struct nand_chip *this) */ int nand_default_bbt(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int ret; /* Is a flash based bad block table requested? */ @@ -1317,7 +1317,7 @@ int nand_default_bbt(struct mtd_info *mtd) */ int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int block; block = (int)(offs >> this->bbt_erase_shift); @@ -1332,7 +1332,7 @@ int nand_isreserved_bbt(struct mtd_info *mtd, loff_t offs) */ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int block, res; block = (int)(offs >> this->bbt_erase_shift); @@ -1359,7 +1359,7 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) */ int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int block, ret = 0; block = (int)(offs >> this->bbt_erase_shift); diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c index 3803e0bba23b..e5758d885943 100644 --- a/drivers/mtd/nand/nand_bch.c +++ b/drivers/mtd/nand/nand_bch.c @@ -52,7 +52,7 @@ struct nand_bch_control { int nand_bch_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf, unsigned char *code) { - const struct nand_chip *chip = mtd->priv; + const struct nand_chip *chip = mtd_to_nand(mtd); struct nand_bch_control *nbc = chip->ecc.priv; unsigned int i; @@ -79,7 +79,7 @@ EXPORT_SYMBOL(nand_bch_calculate_ecc); int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc) { - const struct nand_chip *chip = mtd->priv; + const struct nand_chip *chip = mtd_to_nand(mtd); struct nand_bch_control *nbc = chip->ecc.priv; unsigned int *errloc = nbc->errloc; int i, count; diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 97c4c0216c90..e6129851bfd8 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -424,7 +424,7 @@ int nand_calculate_ecc(struct mtd_info *mtd, const unsigned char *buf, unsigned char *code) { __nand_calculate_ecc(buf, - ((struct nand_chip *)mtd->priv)->ecc.size, code); + mtd_to_nand(mtd)->ecc.size, code); return 0; } @@ -524,7 +524,7 @@ int nand_correct_data(struct mtd_info *mtd, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc) { return __nand_correct_data(buf, read_ecc, calc_ecc, - ((struct nand_chip *)mtd->priv)->ecc.size); + mtd_to_nand(mtd)->ecc.size); } EXPORT_SYMBOL(nand_correct_data); diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index b16d70aafd9e..eb2a567f41d9 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -666,7 +666,7 @@ static char *get_partition_name(int i) */ static int init_nandsim(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nandsim *ns = chip->priv; int i, ret = 0; uint64_t remains; @@ -1908,7 +1908,7 @@ static void switch_state(struct nandsim *ns) static u_char ns_nand_read_byte(struct mtd_info *mtd) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(mtd)->priv; u_char outb = 0x00; /* Sanity and correctness checks */ @@ -1969,7 +1969,7 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd) static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(mtd)->priv; /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2123,7 +2123,7 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(mtd)->priv; ns->lines.cle = bitmask & NAND_CLE ? 1 : 0; ns->lines.ale = bitmask & NAND_ALE ? 1 : 0; @@ -2141,7 +2141,7 @@ static int ns_device_ready(struct mtd_info *mtd) static uint16_t ns_nand_read_word(struct mtd_info *mtd) { - struct nand_chip *chip = (struct nand_chip *)mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); NS_DBG("read_word\n"); @@ -2150,7 +2150,7 @@ static uint16_t ns_nand_read_word(struct mtd_info *mtd) static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(mtd)->priv; /* Check that chip is expecting data input */ if (!(ns->state & STATE_DATAIN_MASK)) { @@ -2177,7 +2177,7 @@ static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nandsim *ns = ((struct nand_chip *)mtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(mtd)->priv; /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2198,7 +2198,7 @@ static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) int i; for (i = 0; i < len; i++) - buf[i] = ((struct nand_chip *)mtd->priv)->read_byte(mtd); + buf[i] = mtd_to_nand(mtd)->read_byte(mtd); return; } @@ -2405,7 +2405,7 @@ module_init(ns_init_module); */ static void __exit ns_cleanup_module(void) { - struct nandsim *ns = ((struct nand_chip *)nsmtd->priv)->priv; + struct nandsim *ns = mtd_to_nand(nsmtd)->priv; int i; nandsim_debugfs_remove(ns); -- cgit v1.2.3 From a83dfa92850e521dfb6485ad4aa3c7c1fb52f06e Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:05 +0100 Subject: staging: mt29f_spinand: make use of mtd_to_nand() mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Use it where appropriate. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/staging/mt29f_spinand/mt29f_spinand.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index 6536066b2349..8924a9645a43 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -31,7 +31,7 @@ static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd) { - struct nand_chip *chip = (struct nand_chip *)mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct spinand_info *info = (struct spinand_info *)chip->priv; struct spinand_state *state = (struct spinand_state *)info->priv; @@ -744,7 +744,7 @@ static void spinand_reset(struct spi_device *spi_nand) static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page) { - struct nand_chip *chip = (struct nand_chip *)mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct spinand_info *info = (struct spinand_info *)chip->priv; struct spinand_state *state = (struct spinand_state *)info->priv; -- cgit v1.2.3 From 4bd4ebcc540c35d4477b098cf26394f976551464 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:04 +0100 Subject: mtd: nand: make use of mtd_to_nand() in NAND drivers mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all NAND drivers to use it. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/ams-delta.c | 4 +- drivers/mtd/nand/atmel_nand.c | 50 ++++++++++----------- drivers/mtd/nand/au1550nd.c | 22 +++++----- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 16 +++---- drivers/mtd/nand/bf5xx_nand.c | 12 ++--- drivers/mtd/nand/brcmnand/brcmnand.c | 12 ++--- drivers/mtd/nand/cafe_nand.c | 18 ++++---- drivers/mtd/nand/cmx270_nand.c | 8 ++-- drivers/mtd/nand/cs553x_nand.c | 18 ++++---- drivers/mtd/nand/davinci_nand.c | 8 ++-- drivers/mtd/nand/diskonchip.c | 66 ++++++++++++++-------------- drivers/mtd/nand/docg4.c | 34 +++++++------- drivers/mtd/nand/fsl_elbc_nand.c | 14 +++--- drivers/mtd/nand/fsl_ifc_nand.c | 18 ++++---- drivers/mtd/nand/fsl_upm.c | 4 +- drivers/mtd/nand/fsmc_nand.c | 10 ++--- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 18 ++++---- drivers/mtd/nand/hisi504_nand.c | 16 +++---- drivers/mtd/nand/jz4740_nand.c | 4 +- drivers/mtd/nand/lpc32xx_mlc.c | 6 +-- drivers/mtd/nand/lpc32xx_slc.c | 14 +++--- drivers/mtd/nand/mpc5121_nfc.c | 24 +++++----- drivers/mtd/nand/mxc_nand.c | 34 +++++++------- drivers/mtd/nand/ndfc.c | 14 +++--- drivers/mtd/nand/nuc900_nand.c | 2 +- drivers/mtd/nand/omap2.c | 12 ++--- drivers/mtd/nand/orion_nand.c | 4 +- drivers/mtd/nand/pasemi_nand.c | 8 ++-- drivers/mtd/nand/pxa3xx_nand.c | 18 ++++---- drivers/mtd/nand/r852.c | 2 +- drivers/mtd/nand/s3c2410.c | 6 +-- drivers/mtd/nand/sharpsl.c | 2 +- drivers/mtd/nand/sm_common.c | 2 +- drivers/mtd/nand/socrates_nand.c | 8 ++-- drivers/mtd/nand/sunxi_nand.c | 26 +++++------ drivers/mtd/nand/tmio_nand.c | 2 +- drivers/mtd/nand/txx9ndfmc.c | 12 ++--- drivers/mtd/nand/xway_nand.c | 4 +- 38 files changed, 276 insertions(+), 276 deletions(-) diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 842f8fe91b56..b2b49c42920c 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -64,7 +64,7 @@ static struct mtd_partition partition_info[] = { static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *io_base = this->priv; writew(0, io_base + OMAP_MPUIO_IO_CNTL); @@ -77,7 +77,7 @@ static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte) static u_char ams_delta_read_byte(struct mtd_info *mtd) { u_char res; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *io_base = this->priv; gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0); diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index f4e1f915c696..edd191a6ee53 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -182,7 +182,7 @@ static void atmel_nand_disable(struct atmel_nand_host *host) */ static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; if (ctrl & NAND_CTRL_CHANGE) { @@ -205,7 +205,7 @@ static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl */ static int atmel_nand_device_ready(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; return gpio_get_value(host->board.rdy_pin) ^ @@ -215,7 +215,7 @@ static int atmel_nand_device_ready(struct mtd_info *mtd) /* Set up for hardware ready pin and enable pin. */ static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; int res = 0; @@ -267,7 +267,7 @@ static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd) */ static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) { @@ -280,7 +280,7 @@ static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) { @@ -293,14 +293,14 @@ static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); __raw_writesb(nand_chip->IO_ADDR_W, buf, len); } static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2); } @@ -352,7 +352,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len, dma_addr_t dma_src_addr, dma_dst_addr, phys_addr; struct dma_async_tx_descriptor *tx = NULL; dma_cookie_t cookie; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; void *p = buf; int err = -EIO; @@ -425,7 +425,7 @@ err_buf: static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; if (use_dma && len > mtd->oobsize) @@ -441,7 +441,7 @@ static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; if (use_dma && len > mtd->oobsize) @@ -533,7 +533,7 @@ static int pmecc_data_alloc(struct atmel_nand_host *host) static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; int i; uint32_t value; @@ -550,7 +550,7 @@ static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector) static void pmecc_substitute(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; int16_t __iomem *alpha_to = host->pmecc_alpha_to; int16_t __iomem *index_of = host->pmecc_index_of; @@ -592,7 +592,7 @@ static void pmecc_substitute(struct mtd_info *mtd) static void pmecc_get_sigma(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; int16_t *lmu = host->pmecc_lmu; @@ -750,7 +750,7 @@ static void pmecc_get_sigma(struct mtd_info *mtd) static int pmecc_err_location(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; unsigned long end_time; const int cap = host->pmecc_corr_cap; @@ -802,7 +802,7 @@ static int pmecc_err_location(struct mtd_info *mtd) static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc, int sector_num, int extra_bytes, int err_nbr) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; int i = 0; int byte_pos, bit_pos, sector_size, pos; @@ -848,7 +848,7 @@ static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc, static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf, u8 *ecc) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; int i, err_nbr; uint8_t *buf_pos; @@ -992,7 +992,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd, static void atmel_pmecc_core_init(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; uint32_t val = 0; struct nand_ecclayout *ecc_layout; @@ -1308,7 +1308,7 @@ err: static int atmel_nand_calculate(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; unsigned int ecc_value; @@ -1412,7 +1412,7 @@ static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *isnull) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; unsigned int ecc_status; unsigned int ecc_word, ecc_bit; @@ -1478,7 +1478,7 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, */ static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; if (host->board.need_reset_workaround) @@ -1771,7 +1771,7 @@ static int nfc_send_command(struct atmel_nand_host *host, static int nfc_device_ready(struct mtd_info *mtd) { u32 status, mask; - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; status = nfc_read_status(host); @@ -1787,7 +1787,7 @@ static int nfc_device_ready(struct mtd_info *mtd) static void nfc_select_chip(struct mtd_info *mtd, int chip) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct atmel_nand_host *host = nand_chip->priv; if (chip == -1) @@ -1799,7 +1799,7 @@ static void nfc_select_chip(struct mtd_info *mtd, int chip) static int nfc_make_addr(struct mtd_info *mtd, int command, int column, int page_addr, unsigned int *addr1234, unsigned int *cycle0) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int acycle = 0; unsigned char addr_bytes[8]; @@ -1839,7 +1839,7 @@ static int nfc_make_addr(struct mtd_info *mtd, int command, int column, static void nfc_nand_command(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; unsigned long timeout; unsigned int nfc_addr_cmd = 0; @@ -2026,7 +2026,7 @@ static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip, static int nfc_sram_init(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct atmel_nand_host *host = chip->priv; int res = 0; diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 08a130f63faf..73fceb8743a2 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -39,7 +39,7 @@ struct au1550nd_ctx { */ static u_char au_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u_char ret = readb(this->IO_ADDR_R); wmb(); /* drain writebuffer */ return ret; @@ -54,7 +54,7 @@ static u_char au_read_byte(struct mtd_info *mtd) */ static void au_write_byte(struct mtd_info *mtd, u_char byte) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); writeb(byte, this->IO_ADDR_W); wmb(); /* drain writebuffer */ } @@ -67,7 +67,7 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte) */ static u_char au_read_byte16(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u_char ret = (u_char) cpu_to_le16(readw(this->IO_ADDR_R)); wmb(); /* drain writebuffer */ return ret; @@ -82,7 +82,7 @@ static u_char au_read_byte16(struct mtd_info *mtd) */ static void au_write_byte16(struct mtd_info *mtd, u_char byte) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); writew(le16_to_cpu((u16) byte), this->IO_ADDR_W); wmb(); /* drain writebuffer */ } @@ -95,7 +95,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte) */ static u16 au_read_word(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u16 ret = readw(this->IO_ADDR_R); wmb(); /* drain writebuffer */ return ret; @@ -112,7 +112,7 @@ static u16 au_read_word(struct mtd_info *mtd) static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); for (i = 0; i < len; i++) { writeb(buf[i], this->IO_ADDR_W); @@ -131,7 +131,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); for (i = 0; i < len; i++) { buf[i] = readb(this->IO_ADDR_R); @@ -150,7 +150,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u16 *p = (u16 *) buf; len >>= 1; @@ -172,7 +172,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); u16 *p = (u16 *) buf; len >>= 1; @@ -198,7 +198,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) static void au1550_hwcontrol(struct mtd_info *mtd, int cmd) { struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info); - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); switch (cmd) { @@ -268,7 +268,7 @@ static void au1550_select_chip(struct mtd_info *mtd, int chip) static void au1550_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info); - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int ce_override = 0, i; unsigned long flags = 0; diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index 592befc7ffa1..e5b2e48658c4 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -89,7 +89,7 @@ static int bcm47xxnflash_ops_bcm4706_poll(struct bcma_drv_cc *cc) static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; u32 ctlcode; @@ -139,7 +139,7 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; struct bcma_drv_cc *cc = b47n->cc; @@ -173,7 +173,7 @@ static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd, static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; u32 code = 0; @@ -199,7 +199,7 @@ static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd, static int bcm47xxnflash_ops_bcm4706_dev_ready(struct mtd_info *mtd) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; return !!(bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_CTL) & NCTL_READY); @@ -216,7 +216,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; struct bcma_drv_cc *cc = b47n->cc; u32 ctlcode; @@ -312,7 +312,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; struct bcma_drv_cc *cc = b47n->cc; u32 tmp = 0; @@ -341,7 +341,7 @@ static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; switch (b47n->curr_command) { @@ -357,7 +357,7 @@ static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd, static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; switch (b47n->curr_command) { diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 61bd2160717c..d9da5edb011e 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -304,7 +304,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat, static int bf5xx_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret; ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc); @@ -329,7 +329,7 @@ static int bf5xx_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { struct bf5xx_nand_info *info = mtd_to_nand_info(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u16 ecc0, ecc1; u32 code[2]; u8 *p; @@ -466,7 +466,7 @@ static void bf5xx_nand_dma_rw(struct mtd_info *mtd, uint8_t *buf, int is_read) { struct bf5xx_nand_info *info = mtd_to_nand_info(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); unsigned short val; dev_dbg(info->device, " mtd->%p, buf->%p, is_read %d\n", @@ -532,7 +532,7 @@ static void bf5xx_nand_dma_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct bf5xx_nand_info *info = mtd_to_nand_info(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); dev_dbg(info->device, "mtd->%p, buf->%p, int %d\n", mtd, buf, len); @@ -546,7 +546,7 @@ static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct bf5xx_nand_info *info = mtd_to_nand_info(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); dev_dbg(info->device, "mtd->%p, buf->%p, len %d\n", mtd, buf, len); @@ -685,7 +685,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev) static int bf5xx_nand_scan(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret; ret = nand_scan_ident(mtd, 1, NULL); diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 35d78f739d91..190a99a66010 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -873,7 +873,7 @@ static struct nand_ecclayout *brcmstb_choose_ecc_layout( static void brcmnand_wp(struct mtd_info *mtd, int wp) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct brcmnand_host *host = chip->priv; struct brcmnand_controller *ctrl = host->ctrl; @@ -1039,7 +1039,7 @@ static void brcmnand_cmd_ctrl(struct mtd_info *mtd, int dat, static int brcmnand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct brcmnand_host *host = chip->priv; struct brcmnand_controller *ctrl = host->ctrl; unsigned long timeo = msecs_to_jiffies(100); @@ -1113,7 +1113,7 @@ static int brcmnand_low_level_op(struct brcmnand_host *host, static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct brcmnand_host *host = chip->priv; struct brcmnand_controller *ctrl = host->ctrl; u64 addr = (u64)page_addr << chip->page_shift; @@ -1219,7 +1219,7 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, static uint8_t brcmnand_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct brcmnand_host *host = chip->priv; struct brcmnand_controller *ctrl = host->ctrl; uint8_t ret = 0; @@ -1286,7 +1286,7 @@ static void brcmnand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { int i; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct brcmnand_host *host = chip->priv; switch (host->last_cmd) { @@ -2061,7 +2061,7 @@ static int brcmnand_resume(struct device *dev) list_for_each_entry(host, &ctrl->host_list, node) { struct mtd_info *mtd = &host->mtd; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); brcmnand_save_restore_cs_config(host, 1); diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index cce3ac4939b6..77c92f1b985f 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -101,7 +101,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int cafe_device_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); @@ -118,7 +118,7 @@ static int cafe_device_ready(struct mtd_info *mtd) static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; if (usedma) @@ -134,7 +134,7 @@ static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; if (usedma) @@ -149,7 +149,7 @@ static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static uint8_t cafe_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; uint8_t d; @@ -162,7 +162,7 @@ static uint8_t cafe_read_byte(struct mtd_info *mtd) static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; int adrbytes = 0; uint32_t ctl1; @@ -318,7 +318,7 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, static void cafe_select_chip(struct mtd_info *mtd, int chipnr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr); @@ -334,7 +334,7 @@ static void cafe_select_chip(struct mtd_info *mtd, int chipnr) static irqreturn_t cafe_nand_interrupt(int irq, void *id) { struct mtd_info *mtd = id; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; uint32_t irqs = cafe_readl(cafe, NAND_IRQ); cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ); @@ -800,7 +800,7 @@ static int cafe_nand_probe(struct pci_dev *pdev, static void cafe_nand_remove(struct pci_dev *pdev) { struct mtd_info *mtd = pci_get_drvdata(pdev); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; /* Disable NAND IRQ in global IRQ mask register */ @@ -828,7 +828,7 @@ static int cafe_nand_resume(struct pci_dev *pdev) { uint32_t ctrl; struct mtd_info *mtd = pci_get_drvdata(pdev); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct cafe_priv *cafe = chip->priv; /* Start off by resetting the NAND controller completely */ diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 66ec95e6ca6c..43bded66bc44 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -53,7 +53,7 @@ static struct mtd_partition partition_info[] = { static u_char cmx270_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); return (readl(this->IO_ADDR_R) >> 16); } @@ -61,7 +61,7 @@ static u_char cmx270_read_byte(struct mtd_info *mtd) static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); for (i=0; iIO_ADDR_W); @@ -70,7 +70,7 @@ static void cmx270_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void cmx270_read_buf(struct mtd_info *mtd, u_char *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); for (i=0; iIO_ADDR_R) >> 16; @@ -94,7 +94,7 @@ static void nand_cs_off(void) static void cmx270_hwcontrol(struct mtd_info *mtd, int dat, unsigned int ctrl) { - struct nand_chip* this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned int nandaddr = (unsigned int)this->IO_ADDR_W; dsb(); diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index aec6045058c7..8904d685b257 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -97,7 +97,7 @@ static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); while (unlikely(len > 0x800)) { memcpy_fromio(buf, this->IO_ADDR_R, 0x800); @@ -109,7 +109,7 @@ static void cs553x_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); while (unlikely(len > 0x800)) { memcpy_toio(this->IO_ADDR_R, buf, 0x800); @@ -121,13 +121,13 @@ static void cs553x_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static unsigned char cs553x_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); return readb(this->IO_ADDR_R); } static void cs553x_write_byte(struct mtd_info *mtd, u_char byte) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); int i = 100000; while (i && readb(this->IO_ADDR_R + MM_NAND_STS) & CS_NAND_CTLR_BUSY) { @@ -140,7 +140,7 @@ static void cs553x_write_byte(struct mtd_info *mtd, u_char byte) static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *mmio_base = this->IO_ADDR_R; if (ctrl & NAND_CTRL_CHANGE) { unsigned char ctl = (ctrl & ~NAND_CTRL_CHANGE ) ^ 0x01; @@ -152,7 +152,7 @@ static void cs553x_hwcontrol(struct mtd_info *mtd, int cmd, static int cs553x_device_ready(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *mmio_base = this->IO_ADDR_R; unsigned char foo = readb(mmio_base + MM_NAND_STS); @@ -161,7 +161,7 @@ static int cs553x_device_ready(struct mtd_info *mtd) static void cs_enable_hwecc(struct mtd_info *mtd, int mode) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *mmio_base = this->IO_ADDR_R; writeb(0x07, mmio_base + MM_NAND_ECC_CTL); @@ -170,7 +170,7 @@ static void cs_enable_hwecc(struct mtd_info *mtd, int mode) static int cs_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { uint32_t ecc; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); void __iomem *mmio_base = this->IO_ADDR_R; ecc = readl(mmio_base + MM_NAND_STS); @@ -337,7 +337,7 @@ static void __exit cs553x_cleanup(void) if (!mtd) continue; - this = cs553x_mtd[i]->priv; + this = mtd_to_nand(cs553x_mtd[i]); mmio_base = this->IO_ADDR_R; /* Release resources, unregister device */ diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 8e351af31e53..b5978d58e1df 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -106,7 +106,7 @@ static void nand_davinci_hwcontrol(struct mtd_info *mtd, int cmd, { struct davinci_nand_info *info = to_davinci_nand(mtd); uint32_t addr = info->current_cs; - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); /* Did the control lines change? */ if (ctrl & NAND_CTRL_CHANGE) { @@ -192,7 +192,7 @@ static int nand_davinci_calculate_1bit(struct mtd_info *mtd, static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint32_t eccNand = read_ecc[0] | (read_ecc[1] << 8) | (read_ecc[2] << 16); uint32_t eccCalc = calc_ecc[0] | (calc_ecc[1] << 8) | @@ -447,7 +447,7 @@ correct: */ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0) ioread32_rep(chip->IO_ADDR_R, buf, len >> 2); @@ -460,7 +460,7 @@ static void nand_davinci_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void nand_davinci_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if ((0x03 & ((unsigned)buf)) == 0 && (0x03 & len) == 0) iowrite32_rep(chip->IO_ADDR_R, buf, len >> 2); diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 0802158a3f75..5f7bcc86486e 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -299,7 +299,7 @@ static inline int DoC_WaitReady(struct doc_priv *doc) static void doc2000_write_byte(struct mtd_info *mtd, u_char datum) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -311,7 +311,7 @@ static void doc2000_write_byte(struct mtd_info *mtd, u_char datum) static u_char doc2000_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; u_char ret; @@ -326,7 +326,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd) static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -343,7 +343,7 @@ static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -358,7 +358,7 @@ static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -379,7 +379,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; uint16_t ret; @@ -425,7 +425,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) static void __init doc2000_count_chips(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; uint16_t mfrid; int i; @@ -461,7 +461,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this) static void doc2001_write_byte(struct mtd_info *mtd, u_char datum) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -472,7 +472,7 @@ static void doc2001_write_byte(struct mtd_info *mtd, u_char datum) static u_char doc2001_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -486,7 +486,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd) static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -499,7 +499,7 @@ static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -516,7 +516,7 @@ static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) static u_char doc2001plus_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; u_char ret; @@ -531,7 +531,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd) static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -549,7 +549,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int le static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -580,7 +580,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) static void doc2001plus_select_chip(struct mtd_info *mtd, int chip) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int floor = 0; @@ -607,7 +607,7 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip) static void doc200x_select_chip(struct mtd_info *mtd, int chip) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int floor = 0; @@ -638,7 +638,7 @@ static void doc200x_select_chip(struct mtd_info *mtd, int chip) static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -661,7 +661,7 @@ static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd, static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -767,7 +767,7 @@ static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int colu static int doc200x_dev_ready(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -807,7 +807,7 @@ static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -826,7 +826,7 @@ static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode) static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; @@ -846,7 +846,7 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode) /* This code is only called on write */ static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; int i; @@ -907,7 +907,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *isnull) { int i, ret = 0; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; void __iomem *docptr = doc->virtadr; uint8_t calc_ecc[6]; @@ -1007,7 +1007,7 @@ static struct nand_ecclayout doc200x_oobinfo = { mh1_page in the DOC private structure. */ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; unsigned offs; int ret; @@ -1050,7 +1050,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; int ret = 0; u_char *buf; @@ -1152,7 +1152,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio /* This is a stripped-down copy of the code in inftlmount.c */ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; int ret = 0; u_char *buf; @@ -1272,7 +1272,7 @@ static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partiti static int __init nftl_scan_bbt(struct mtd_info *mtd) { int ret, numparts; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; struct mtd_partition parts[2]; @@ -1307,7 +1307,7 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd) static int __init inftl_scan_bbt(struct mtd_info *mtd) { int ret, numparts; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; struct mtd_partition parts[5]; @@ -1360,7 +1360,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) static inline int __init doc2000_init(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; this->read_byte = doc2000_read_byte; @@ -1376,7 +1376,7 @@ static inline int __init doc2000_init(struct mtd_info *mtd) static inline int __init doc2001_init(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; this->read_byte = doc2001_read_byte; @@ -1406,7 +1406,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd) static inline int __init doc2001plus_init(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct doc_priv *doc = this->priv; this->read_byte = doc2001plus_read_byte; @@ -1523,7 +1523,7 @@ static int __init doc_probe(unsigned long physadr) for (mtd = doclist; mtd; mtd = doc->nextdoc) { unsigned char oldval; unsigned char newval; - nand = mtd->priv; + nand = mtd_to_nand(mtd); doc = nand->priv; /* Use the alias resolution register to determine if this is in fact the same DOC aliased to a new address. If writes @@ -1643,7 +1643,7 @@ static void release_nanddoc(void) struct doc_priv *doc; for (mtd = doclist; mtd; mtd = nextmtd) { - nand = mtd->priv; + nand = mtd_to_nand(mtd); doc = nand->priv; nextmtd = doc->nextdoc; diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 408cf69b854b..da93d7f5c821 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -242,7 +242,7 @@ static inline void write_nop(void __iomem *docptr) static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { int i; - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); uint16_t *p = (uint16_t *) buf; len >>= 1; @@ -253,7 +253,7 @@ static void docg4_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void docg4_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { int i; - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); uint16_t *p = (uint16_t *) buf; len >>= 1; @@ -318,7 +318,7 @@ static void docg4_select_chip(struct mtd_info *mtd, int chip) * Select among multiple cascaded chips ("floors"). Multiple floors are * not yet supported, so the only valid non-negative value is 0. */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; @@ -337,7 +337,7 @@ static void reset(struct mtd_info *mtd) { /* full device reset */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; @@ -375,7 +375,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) * Up to four bitflips can be corrected. */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; int i, numerrs, errpos[4]; @@ -464,7 +464,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) static uint8_t docg4_read_byte(struct mtd_info *mtd) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; dev_dbg(doc->dev, "%s\n", __func__); @@ -545,7 +545,7 @@ static int pageprog(struct mtd_info *mtd) * internal buffer out to the flash array, or some such. */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; int retval = 0; @@ -582,7 +582,7 @@ static void sequence_reset(struct mtd_info *mtd) { /* common starting sequence for all operations */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; @@ -599,7 +599,7 @@ static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr) { /* first step in reading a page */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; @@ -626,7 +626,7 @@ static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr) { /* first step in writing a page */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; @@ -691,7 +691,7 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column, { /* handle standard nand commands */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; uint32_t g4_addr = mtd_to_docg4_address(page_addr, column); @@ -874,7 +874,7 @@ static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand, static int docg4_erase_block(struct mtd_info *mtd, int page) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; uint16_t g4_page; @@ -1016,7 +1016,7 @@ static int __init read_factory_bbt(struct mtd_info *mtd) * update the memory-based bbt accordingly. */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0); uint8_t *buf; @@ -1089,7 +1089,7 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs) int ret, i; uint8_t *buf; - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; struct nand_bbt_descr *bbtd = nand->badblock_pattern; int page = (int)(ofs >> nand->page_shift); @@ -1202,7 +1202,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd) * things as well, such as call nand_set_defaults(). */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; mtd->size = DOCG4_CHIP_SIZE; @@ -1261,7 +1261,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd) static int __init read_id_reg(struct mtd_info *mtd) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; void __iomem *docptr = doc->virtadr; uint16_t id1, id2; @@ -1357,7 +1357,7 @@ static int __init probe_docg4(struct platform_device *pdev) iounmap(virtadr); if (mtd) { /* re-declarations avoid compiler warning */ - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; nand_release(mtd); /* deletes partitions and mtd devices */ free_bch(doc->bch); diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index bd6d49376382..ad6d5daacb83 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -144,7 +144,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { */ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; @@ -195,7 +195,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) */ static int fsl_elbc_run_command(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; @@ -300,7 +300,7 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob) static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; @@ -525,7 +525,7 @@ static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip) */ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; unsigned int bufsize = mtd->writesize + mtd->oobsize; @@ -563,7 +563,7 @@ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) */ static u8 fsl_elbc_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; @@ -580,7 +580,7 @@ static u8 fsl_elbc_read_byte(struct mtd_info *mtd) */ static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; int avail; @@ -619,7 +619,7 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip) static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_elbc_mtd *priv = chip->priv; struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index f2608315774a..3136842e88d5 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -230,7 +230,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { */ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; @@ -253,7 +253,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) static int is_blank(struct mtd_info *mtd, unsigned int bufnum) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2); u32 __iomem *mainarea = (u32 __iomem *)addr; @@ -292,7 +292,7 @@ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl, */ static void fsl_ifc_run_command(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl; @@ -409,7 +409,7 @@ static void fsl_ifc_do_read(struct nand_chip *chip, /* cmdfunc send commands to the IFC NAND Machine */ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; @@ -624,7 +624,7 @@ static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip) */ static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; unsigned int bufsize = mtd->writesize + mtd->oobsize; @@ -650,7 +650,7 @@ static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) */ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; unsigned int offset; @@ -673,7 +673,7 @@ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd) */ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; uint16_t data; @@ -696,7 +696,7 @@ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd) */ static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; int avail; @@ -782,7 +782,7 @@ static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip, static int fsl_ifc_chip_init_tail(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_ifc_mtd *priv = chip->priv; dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__, diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index b3f4a01621c1..68ec128e822c 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -79,7 +79,7 @@ static void fun_wait_rnb(struct fsl_upm_nand *fun) static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd); u32 mar; @@ -109,7 +109,7 @@ static void fun_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) static void fun_select_chip(struct mtd_info *mtd, int mchip_nr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsl_upm_nand *fun = to_fsl_upm_nand(mtd); if (mchip_nr == -1) { diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 59fc6d0c3910..1c6c399496c2 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -329,7 +329,7 @@ struct fsmc_nand_data { /* Assert CS signal based on chipnr */ static void fsmc_select_chip(struct mtd_info *mtd, int chipnr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct fsmc_nand_data *host; host = container_of(mtd, struct fsmc_nand_data, mtd); @@ -358,7 +358,7 @@ static void fsmc_select_chip(struct mtd_info *mtd, int chipnr) */ static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct fsmc_nand_data *host = container_of(mtd, struct fsmc_nand_data, mtd); void __iomem *regs = host->regs_va; @@ -629,7 +629,7 @@ unmap_dma: static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { int i; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) && IS_ALIGNED(len, sizeof(uint32_t))) { @@ -652,7 +652,7 @@ static void fsmc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { int i; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (IS_ALIGNED((uint32_t)buf, sizeof(uint32_t)) && IS_ALIGNED(len, sizeof(uint32_t))) { @@ -784,7 +784,7 @@ static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat, { struct fsmc_nand_data *host = container_of(mtd, struct fsmc_nand_data, mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); void __iomem *regs = host->regs_va; unsigned int bank = host->bank; uint32_t err_idx[8]; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 5a9b6966e97c..802adb04bb97 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -140,7 +140,7 @@ static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this) { struct bch_geometry *geo = &this->bch_geometry; struct mtd_info *mtd = &this->mtd; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nand_oobfree *of = gpmi_hw_ecclayout.oobfree; unsigned int block_mark_bit_offset; @@ -856,7 +856,7 @@ error_alloc: static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; int ret; @@ -890,7 +890,7 @@ static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl) static int gpmi_dev_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; return gpmi_is_ready(this, this->current_chip); @@ -898,7 +898,7 @@ static int gpmi_dev_ready(struct mtd_info *mtd) static void gpmi_select_chip(struct mtd_info *mtd, int chipnr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; if ((this->current_chip < 0) && (chipnr >= 0)) @@ -911,7 +911,7 @@ static void gpmi_select_chip(struct mtd_info *mtd, int chipnr) static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; dev_dbg(this->dev, "len is %d\n", len); @@ -923,7 +923,7 @@ static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; dev_dbg(this->dev, "len is %d\n", len); @@ -935,7 +935,7 @@ static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static uint8_t gpmi_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; uint8_t *buf = this->data_buffer_dma; @@ -1538,7 +1538,7 @@ static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct gpmi_nand_data *this = chip->priv; int ret = 0; uint8_t *block_mark; @@ -1838,7 +1838,7 @@ static void gpmi_nand_exit(struct gpmi_nand_data *this) static int gpmi_init_last(struct gpmi_nand_data *this) { struct mtd_info *mtd = &this->mtd; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &chip->ecc; struct bch_geometry *bch_geo = &this->bch_geometry; int ret; diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index 0aad4acab9d6..6358d4ae7b75 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -190,7 +190,7 @@ static void wait_controller_finished(struct hinfc_host *host) static void hisi_nfc_dma_transfer(struct hinfc_host *host, int todev) { struct mtd_info *mtd = &host->mtd; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); unsigned long val; int ret; @@ -357,7 +357,7 @@ static int hisi_nfc_send_cmd_reset(struct hinfc_host *host, int chipselect) static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; if (chipselect < 0) @@ -368,7 +368,7 @@ static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect) static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; if (host->command == NAND_CMD_STATUS) @@ -384,7 +384,7 @@ static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd) static u16 hisi_nfc_read_word(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; host->offset += 2; @@ -394,7 +394,7 @@ static u16 hisi_nfc_read_word(struct mtd_info *mtd) static void hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; memcpy(host->buffer + host->offset, buf, len); @@ -403,7 +403,7 @@ hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; memcpy(buf, host->buffer + host->offset, len); @@ -412,7 +412,7 @@ static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void set_addr(struct mtd_info *mtd, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; unsigned int command = host->command; @@ -448,7 +448,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr) static void hisi_nfc_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct hinfc_host *host = chip->priv; int is_cache_invalid = 1; unsigned int flag = 0; diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 5a99a93ed025..5a06fba9bd1a 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -82,7 +82,7 @@ static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd) static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr) { struct jz_nand *nand = mtd_to_jz_nand(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint32_t ctrl; int banknr; @@ -104,7 +104,7 @@ static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr) static void jz_nand_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl) { struct jz_nand *nand = mtd_to_jz_nand(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); uint32_t reg; void __iomem *bank_base = nand->bank_base[nand->selected_bank]; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 57c4b712cf1a..373885659fe0 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -275,7 +275,7 @@ static void lpc32xx_nand_setup(struct lpc32xx_nand_host *host) static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = nand_chip->priv; if (cmd != NAND_CMD_NONE) { @@ -291,7 +291,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, */ static int lpc32xx_nand_device_ready(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = nand_chip->priv; if ((readb(MLC_ISR(host->io_base)) & @@ -389,7 +389,7 @@ static void lpc32xx_dma_complete_func(void *completion) static int lpc32xx_xmit_dma(struct mtd_info *mtd, void *mem, int len, enum dma_transfer_direction dir) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; struct dma_async_tx_descriptor *desc; int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 277626e46379..fcd9facad05e 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -260,7 +260,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { uint32_t tmp; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; /* Does CE state need to be changed? */ @@ -284,7 +284,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, */ static int lpc32xx_nand_device_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; int rdy = 0; @@ -339,7 +339,7 @@ static int lpc32xx_nand_ecc_calculate(struct mtd_info *mtd, */ static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; return (uint8_t)readl(SLC_DATA(host->io_base)); @@ -350,7 +350,7 @@ static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd) */ static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; /* Direct device read with no ECC */ @@ -363,7 +363,7 @@ static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) */ static void lpc32xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; /* Direct device write with no ECC */ @@ -428,7 +428,7 @@ static void lpc32xx_dma_complete_func(void *completion) static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma, void *mem, int len, enum dma_transfer_direction dir) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; struct dma_async_tx_descriptor *desc; int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; @@ -488,7 +488,7 @@ out1: static int lpc32xx_xfer(struct mtd_info *mtd, uint8_t *buf, int eccsubpages, int read) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct lpc32xx_nand_host *host = chip->priv; int i, status = 0; unsigned long timeout; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 0fdfc42f75f8..642c486ea3c2 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -135,7 +135,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd); /* Read NFC register */ static inline u16 nfc_read(struct mtd_info *mtd, uint reg) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; return in_be16(prv->regs + reg); @@ -144,7 +144,7 @@ static inline u16 nfc_read(struct mtd_info *mtd, uint reg) /* Write NFC register */ static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; out_be16(prv->regs + reg, val); @@ -214,7 +214,7 @@ static inline void mpc5121_nfc_send_read_status(struct mtd_info *mtd) static irqreturn_t mpc5121_nfc_irq(int irq, void *data) { struct mtd_info *mtd = data; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK); @@ -226,7 +226,7 @@ static irqreturn_t mpc5121_nfc_irq(int irq, void *data) /* Wait for operation complete */ static void mpc5121_nfc_done(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; int rv; @@ -246,7 +246,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd) /* Do address cycle(s) */ static void mpc5121_nfc_addr_cycle(struct mtd_info *mtd, int column, int page) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u32 pagemask = chip->pagemask; if (column != -1) { @@ -281,7 +281,7 @@ static void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip) /* Init external chip select logic on ADS5121 board */ static int ads5121_chipselect_init(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; struct device_node *dn; @@ -303,7 +303,7 @@ static int ads5121_chipselect_init(struct mtd_info *mtd) /* Control chips select signal on ADS5121 board */ static void ads5121_select_chip(struct mtd_info *mtd, int chip) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = nand->priv; u8 v; @@ -333,7 +333,7 @@ static int mpc5121_nfc_dev_ready(struct mtd_info *mtd) static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command, int column, int page) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; prv->column = (column >= 0) ? column : 0; @@ -406,7 +406,7 @@ static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command, static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset, u8 *buffer, uint size, int wr) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = nand->priv; uint o, s, sbsize, blksize; @@ -458,7 +458,7 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset, static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char *buf, int len, int wr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; uint c = prv->column; uint l; @@ -536,7 +536,7 @@ static u16 mpc5121_nfc_read_word(struct mtd_info *mtd) */ static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; struct mpc512x_reset_module *rm; struct device_node *rmnode; @@ -615,7 +615,7 @@ out: /* Free driver resources */ static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mpc5121_nfc_prv *prv = chip->priv; if (prv->clk) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index f507d361b1a6..b291258bfe7b 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -532,7 +532,7 @@ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas static void send_page_v3(struct mtd_info *mtd, unsigned int ops) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; uint32_t tmp; @@ -548,7 +548,7 @@ static void send_page_v3(struct mtd_info *mtd, unsigned int ops) static void send_page_v2(struct mtd_info *mtd, unsigned int ops) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; /* NANDFC buffer 0 is used for page read/write */ @@ -562,7 +562,7 @@ static void send_page_v2(struct mtd_info *mtd, unsigned int ops) static void send_page_v1(struct mtd_info *mtd, unsigned int ops) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; int bufs, i; @@ -663,7 +663,7 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode) static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; /* @@ -684,7 +684,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat, static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; u32 ecc_stat, err; int no_subpages = 1; @@ -722,7 +722,7 @@ static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, static u_char mxc_nand_read_byte(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; uint8_t ret; @@ -746,7 +746,7 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd) static uint16_t mxc_nand_read_word(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; uint16_t ret; @@ -762,7 +762,7 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd) static void mxc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; u16 col = host->buf_start; int n = mtd->oobsize + mtd->writesize - col; @@ -780,7 +780,7 @@ static void mxc_nand_write_buf(struct mtd_info *mtd, */ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; u16 col = host->buf_start; int n = mtd->oobsize + mtd->writesize - col; @@ -796,7 +796,7 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) * deselect of the NAND chip */ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; if (chip == -1) { @@ -817,7 +817,7 @@ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip) static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; if (chip == -1) { @@ -850,7 +850,7 @@ static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip) */ static void copy_spare(struct mtd_info *mtd, bool bfrom) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct mxc_nand_host *host = this->priv; u16 i, oob_chunk_size; u16 num_chunks = mtd->writesize / 512; @@ -893,7 +893,7 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom) */ static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; /* Write out column address, if necessary */ @@ -979,7 +979,7 @@ static void ecc_8bit_layout_4k(struct nand_ecclayout *layout) static void preset_v1(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; uint16_t config1 = 0; @@ -1007,7 +1007,7 @@ static void preset_v1(struct mtd_info *mtd) static void preset_v2(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; uint16_t config1 = 0; @@ -1053,7 +1053,7 @@ static void preset_v2(struct mtd_info *mtd) static void preset_v3(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct mxc_nand_host *host = chip->priv; uint32_t config2, config3; int i, addr_phases; @@ -1124,7 +1124,7 @@ static void preset_v3(struct mtd_info *mtd) static void mxc_nand_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct mxc_nand_host *host = nand_chip->priv; pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n", diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 69658584061b..d8a23b052d50 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -48,7 +48,7 @@ static struct ndfc_controller ndfc_ctrl[NDFC_MAX_CS]; static void ndfc_select_chip(struct mtd_info *mtd, int chip) { uint32_t ccr; - struct nand_chip *nchip = mtd->priv; + struct nand_chip *nchip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = nchip->priv; ccr = in_be32(ndfc->ndfcbase + NDFC_CCR); @@ -62,7 +62,7 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip) static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; if (cmd == NAND_CMD_NONE) @@ -76,7 +76,7 @@ static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) static int ndfc_ready(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY; @@ -85,7 +85,7 @@ static int ndfc_ready(struct mtd_info *mtd) static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode) { uint32_t ccr; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; ccr = in_be32(ndfc->ndfcbase + NDFC_CCR); @@ -97,7 +97,7 @@ static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode) static int ndfc_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; uint32_t ecc; uint8_t *p = (uint8_t *)&ecc; @@ -121,7 +121,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtd, */ static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; uint32_t *p = (uint32_t *) buf; @@ -131,7 +131,7 @@ static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct ndfc_controller *ndfc = chip->priv; uint32_t *p = (uint32_t *) buf; diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index f0687f71fbd8..8148cd689678 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -136,7 +136,7 @@ static int nuc900_nand_devready(struct mtd_info *mtd) static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { - register struct nand_chip *chip = mtd->priv; + register struct nand_chip *chip = mtd_to_nand(mtd); struct nuc900_nand *nand; nand = container_of(mtd, struct nuc900_nand, mtd); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index e307576f300b..944a74e7a513 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -270,7 +270,7 @@ static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) */ static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); ioread8_rep(nand->IO_ADDR_R, buf, len); } @@ -306,7 +306,7 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len) */ static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); ioread16_rep(nand->IO_ADDR_R, buf, len / 2); } @@ -955,7 +955,7 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode) { struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0; u32 val; @@ -1001,7 +1001,7 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode) */ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); unsigned long timeo = jiffies; @@ -1061,7 +1061,7 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode) struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); enum omap_ecc ecc_opt = info->ecc_opt; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); u32 val, wr_mode; unsigned int ecc_size1, ecc_size0; @@ -2056,7 +2056,7 @@ return_error: static int omap_nand_remove(struct platform_device *pdev) { struct mtd_info *mtd = platform_get_drvdata(pdev); - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); if (nand_chip->ecc.priv) { diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 5c214161244a..4ed4f676ee05 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -25,7 +25,7 @@ static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nc = mtd->priv; + struct nand_chip *nc = mtd_to_nand(mtd); struct orion_nand_data *board = nc->priv; u32 offs; @@ -47,7 +47,7 @@ static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl static void orion_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); void __iomem *io_base = chip->IO_ADDR_R; uint64_t *buf64; int i = 0; diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 83cf021b9651..0ececac2020f 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -45,7 +45,7 @@ static const char driver_name[] = "pasemi-nand"; static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); while (len > 0x800) { memcpy_fromio(buf, chip->IO_ADDR_R, 0x800); @@ -57,7 +57,7 @@ static void pasemi_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); while (len > 0x800) { memcpy_toio(chip->IO_ADDR_R, buf, 0x800); @@ -70,7 +70,7 @@ static void pasemi_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void pasemi_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (cmd == NAND_CMD_NONE) return; @@ -192,7 +192,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev) if (!pasemi_nand_mtd) return 0; - chip = pasemi_nand_mtd->priv; + chip = mtd_to_nand(pasemi_nand_mtd); /* Release resources, unregister device */ nand_release(pasemi_nand_mtd); diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index bdbc2c231ceb..dc39a9847bf5 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1113,7 +1113,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command, static void nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int exec_cmd; @@ -1162,7 +1162,7 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd, const unsigned command, int column, int page_addr) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int exec_cmd, ext_cmd_type; @@ -1309,7 +1309,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; char retval = 0xFF; @@ -1323,7 +1323,7 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; u16 retval = 0xFFFF; @@ -1337,7 +1337,7 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1349,7 +1349,7 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void pxa3xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1365,7 +1365,7 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip) static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; @@ -1416,7 +1416,7 @@ static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info) { struct pxa3xx_nand_host *host = info->host[info->cs]; struct mtd_info *mtd = host->mtd; - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0; info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0; @@ -1572,7 +1572,7 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, static int pxa3xx_nand_scan(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct pxa3xx_nand_host *host = chip->priv; struct pxa3xx_nand_info *info = host->info_data; struct platform_device *pdev = info->pdev; diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index be28cddec9cd..ca05b20c017f 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -64,7 +64,7 @@ static inline void r852_write_reg_dword(struct r852_device *dev, /* returns pointer to our private structure */ static inline struct r852_device *r852_get_dev(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); return chip->priv; } diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 05105cadd0db..e658b2988acf 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -382,7 +382,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) { struct s3c2410_nand_info *info; struct s3c2410_nand_mtd *nmtd; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long cur; nmtd = this->priv; @@ -634,7 +634,7 @@ static int s3c2440_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, static void s3c2410_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); readsb(this->IO_ADDR_R, buf, len); } @@ -656,7 +656,7 @@ static void s3c2440_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void s3c2410_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); writesb(this->IO_ADDR_W, buf, len); } diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 082b6009736d..84129e539930 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -66,7 +66,7 @@ static void sharpsl_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct sharpsl_nand *sharpsl = mtd_to_sharpsl(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (ctrl & NAND_CTRL_CHANGE) { unsigned char bits = ctrl & 0x07; diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c index e06b5e5d3287..c514740f9a83 100644 --- a/drivers/mtd/nand/sm_common.c +++ b/drivers/mtd/nand/sm_common.c @@ -102,7 +102,7 @@ static struct nand_flash_dev nand_xd_flash_ids[] = { int sm_register_device(struct mtd_info *mtd, int smartmedia) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret; chip->options |= NAND_SKIP_BBTSCAN; diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index bde40433b4d9..2dfb1e0d815a 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -45,7 +45,7 @@ static void socrates_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct socrates_nand_host *host = this->priv; for (i = 0; i < len; i++) { @@ -64,7 +64,7 @@ static void socrates_nand_write_buf(struct mtd_info *mtd, static void socrates_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { int i; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); struct socrates_nand_host *host = this->priv; uint32_t val; @@ -105,7 +105,7 @@ static uint16_t socrates_nand_read_word(struct mtd_info *mtd) static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct socrates_nand_host *host = nand_chip->priv; uint32_t val; @@ -130,7 +130,7 @@ static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, */ static int socrates_nand_device_ready(struct mtd_info *mtd) { - struct nand_chip *nand_chip = mtd->priv; + struct nand_chip *nand_chip = mtd_to_nand(mtd); struct socrates_nand_host *host = nand_chip->priv; if (in_be32(host->io_base) & FPGA_NAND_BUSY) diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 1bbcc0c2aab5..4ecd48601182 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -350,7 +350,7 @@ static int sunxi_nfc_rst(struct sunxi_nfc *nfc) static int sunxi_nfc_dev_ready(struct mtd_info *mtd) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); struct sunxi_nand_rb *rb; @@ -388,7 +388,7 @@ static int sunxi_nfc_dev_ready(struct mtd_info *mtd) static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); struct sunxi_nand_chip_sel *sel; @@ -433,7 +433,7 @@ static void sunxi_nfc_select_chip(struct mtd_info *mtd, int chip) static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); int ret; @@ -466,7 +466,7 @@ static void sunxi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); int ret; @@ -507,7 +507,7 @@ static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd) static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); int ret; @@ -541,7 +541,7 @@ static void sunxi_nfc_cmd_ctrl(struct mtd_info *mtd, int dat, static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller); struct sunxi_nand_hw_ecc *data = nand->ecc.priv; u32 ecc_ctl; @@ -556,7 +556,7 @@ static void sunxi_nfc_hw_ecc_enable(struct mtd_info *mtd) static void sunxi_nfc_hw_ecc_disable(struct mtd_info *mtd) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller); writel(readl(nfc->regs + NFC_REG_ECC_CTL) & ~NFC_ECC_EN, @@ -577,7 +577,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd, int *cur_off, unsigned int *max_bitflips) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller); struct nand_ecc_ctrl *ecc = &nand->ecc; u32 status; @@ -638,7 +638,7 @@ static int sunxi_nfc_hw_ecc_read_chunk(struct mtd_info *mtd, static void sunxi_nfc_hw_ecc_read_extra_oob(struct mtd_info *mtd, u8 *oob, int *cur_off) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &nand->ecc; int offset = ((ecc->bytes + 4) * ecc->steps); int len = mtd->oobsize - offset; @@ -665,7 +665,7 @@ static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd, const u8 *oob, int oob_off, int *cur_off) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nfc *nfc = to_sunxi_nfc(nand->controller); struct nand_ecc_ctrl *ecc = &nand->ecc; int ret; @@ -702,7 +702,7 @@ static int sunxi_nfc_hw_ecc_write_chunk(struct mtd_info *mtd, static void sunxi_nfc_hw_ecc_write_extra_oob(struct mtd_info *mtd, u8 *oob, int *cur_off) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct nand_ecc_ctrl *ecc = &nand->ecc; int offset = ((ecc->bytes + 4) * ecc->steps); int len = mtd->oobsize - offset; @@ -1031,7 +1031,7 @@ static int sunxi_nand_hw_common_ecc_ctrl_init(struct mtd_info *mtd, struct device_node *np) { static const u8 strengths[] = { 16, 24, 28, 32, 40, 48, 56, 60, 64 }; - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); struct sunxi_nand_chip *sunxi_nand = to_sunxi_nand(nand); struct sunxi_nfc *nfc = to_sunxi_nfc(sunxi_nand->nand.controller); struct sunxi_nand_hw_ecc *data; @@ -1189,7 +1189,7 @@ static void sunxi_nand_ecc_cleanup(struct nand_ecc_ctrl *ecc) static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc, struct device_node *np) { - struct nand_chip *nand = mtd->priv; + struct nand_chip *nand = mtd_to_nand(mtd); int ret; if (!ecc->size) { diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index befddf0776e4..6d0cbe90b1b2 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -128,7 +128,7 @@ static void tmio_nand_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct tmio_nand *tmio = mtd_to_tmio(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); if (ctrl & NAND_CTRL_CHANGE) { u8 mode; diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index 8572519b8441..ff9afb1eb3ad 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -79,7 +79,7 @@ struct txx9ndfmc_drvdata { static struct platform_device *mtd_to_platdev(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct txx9ndfmc_priv *txx9_priv = chip->priv; return txx9_priv->dev; } @@ -135,7 +135,7 @@ static void txx9ndfmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); struct txx9ndfmc_priv *txx9_priv = chip->priv; struct platform_device *dev = txx9_priv->dev; struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev); @@ -175,7 +175,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat, uint8_t *ecc_code) { struct platform_device *dev = mtd_to_platdev(mtd); - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int eccbytes; u32 mcr = txx9ndfmc_read(dev, TXX9_NDFMCR); @@ -195,7 +195,7 @@ static int txx9ndfmc_calculate_ecc(struct mtd_info *mtd, const uint8_t *dat, static int txx9ndfmc_correct_data(struct mtd_info *mtd, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int eccsize; int corrected = 0; int stat; @@ -257,7 +257,7 @@ static void txx9ndfmc_initialize(struct platform_device *dev) static int txx9ndfmc_nand_scan(struct mtd_info *mtd) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); int ret; ret = nand_scan_ident(mtd, 1, NULL); @@ -391,7 +391,7 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev) if (!mtd) continue; - chip = mtd->priv; + chip = mtd_to_nand(mtd); txx9_priv = chip->priv; nand_release(mtd); diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c index 3b28db458ea0..0cf0ac07a8c2 100644 --- a/drivers/mtd/nand/xway_nand.c +++ b/drivers/mtd/nand/xway_nand.c @@ -89,7 +89,7 @@ static void xway_select_chip(struct mtd_info *mtd, int chip) static void xway_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long nandaddr = (unsigned long) this->IO_ADDR_W; unsigned long flags; @@ -118,7 +118,7 @@ static int xway_dev_ready(struct mtd_info *mtd) static unsigned char xway_read_byte(struct mtd_info *mtd) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long nandaddr = (unsigned long) this->IO_ADDR_R; unsigned long flags; int ret; -- cgit v1.2.3 From ed4f85c03cc7460a2f76afb73c22b8894b44ee20 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:06 +0100 Subject: mtd: nand: embed an mtd_info structure into nand_chip Currently all NAND controller drivers are providing both the mtd_info and nand_chip struct and then let the NAND subsystem to initialize a few things before registering the mtd instance to the MTD layer. Embed an mtd_info field into nand_chip to add some consistency to all NAND controller drivers. This change will also help factorizing boilerplate code copied in all NAND drivers. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index fad634ea1685..d6710575ddb6 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -540,6 +540,7 @@ struct nand_buffers { /** * struct nand_chip - NAND Private Flash Chip Data + * @mtd: MTD device registered to the MTD framework * @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the * flash device * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the @@ -640,6 +641,7 @@ struct nand_buffers { */ struct nand_chip { + struct mtd_info mtd; void __iomem *IO_ADDR_R; void __iomem *IO_ADDR_W; -- cgit v1.2.3 From ffd014f43fdcb6edb5a7f302de1e717e8c0673d5 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:07 +0100 Subject: mtd: nand: add nand_to_mtd() helper Add a new helper to retrieve the MTD device attached to a NAND chip. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index d6710575ddb6..b614ed2105ac 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -737,6 +737,11 @@ static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) return mtd->priv; } +static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip) +{ + return &chip->mtd; +} + /* * NAND Flash Manufacturer ID Codes */ -- cgit v1.2.3 From 04104422bce2693d07001dc4efb5cb935c5053bb Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:00 +0100 Subject: cris: nand: make use of mtd_to_nand() where appropriate mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all CRIS specific implementations to use this helper. Signed-off-by: Boris Brezillon Acked-by: Brian Norris Acked-by: Jesper Nilsson Signed-off-by: Brian Norris --- arch/cris/arch-v32/drivers/mach-a3/nandflash.c | 2 +- arch/cris/arch-v32/drivers/mach-fs/nandflash.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c index 7fb52128ddc9..db953cfabee1 100644 --- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c @@ -52,7 +52,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd, { unsigned long flags; reg_pio_rw_dout dout; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); local_irq_save(flags); diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c index e03238454b0e..22a6467ffe1f 100644 --- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c @@ -51,7 +51,7 @@ static void crisv32_hwcontrol(struct mtd_info *mtd, int cmd, { unsigned long flags; reg_gio_rw_pa_dout dout; - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); local_irq_save(flags); -- cgit v1.2.3 From 4d17a89252ffb58c58f8b39d974ffd8231c33e85 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:02:59 +0100 Subject: blackfin: nand: make use of mtd_to_nand() where appropriate mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all blackfin specific implementations to use this helper. Signed-off-by: Boris Brezillon Acked-by: Brian Norris Signed-off-by: Brian Norris --- arch/blackfin/mach-bf537/boards/stamp.c | 2 +- arch/blackfin/mach-bf561/boards/acvilon.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 88a19fc9844d..c181543a399a 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -404,7 +404,7 @@ static struct mtd_partition bfin_plat_nand_partitions[] = { #define BFIN_NAND_PLAT_ALE 1 static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); if (cmd == NAND_CMD_NONE) return; diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c index 6ab951534d79..37f8f25a1347 100644 --- a/arch/blackfin/mach-bf561/boards/acvilon.c +++ b/arch/blackfin/mach-bf561/boards/acvilon.c @@ -267,7 +267,7 @@ static struct mtd_partition bfin_plat_nand_partitions[] = { static void bfin_plat_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); if (cmd == NAND_CMD_NONE) return; -- cgit v1.2.3 From b1afda0e336f3b65e1dc765e3405d3231d9782fe Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 1 Dec 2015 12:03:01 +0100 Subject: mips: nand: make use of mtd_to_nand() where appropriate mtd_to_nand() was recently introduced to avoid direct accesses to the mtd->priv field. Update all MIPS specific implementations to use this helper. Signed-off-by: Boris Brezillon Acked-by: Brian Norris Signed-off-by: Brian Norris --- arch/mips/alchemy/devboards/db1200.c | 2 +- arch/mips/alchemy/devboards/db1300.c | 2 +- arch/mips/alchemy/devboards/db1550.c | 2 +- arch/mips/pnx833x/common/platform.c | 2 +- arch/mips/rb532/devices.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c index 8c13675a12e7..992442a03d8b 100644 --- a/arch/mips/alchemy/devboards/db1200.c +++ b/arch/mips/alchemy/devboards/db1200.c @@ -200,7 +200,7 @@ static struct i2c_board_info db1200_i2c_devs[] __initdata = { static void au1200_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; ioaddr &= 0xffffff00; diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c index b58077008a53..d3c087f59f1a 100644 --- a/arch/mips/alchemy/devboards/db1300.c +++ b/arch/mips/alchemy/devboards/db1300.c @@ -150,7 +150,7 @@ static void __init db1300_gpio_config(void) static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; ioaddr &= 0xffffff00; diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c index 5740bcfdfc7f..b518f029f5e7 100644 --- a/arch/mips/alchemy/devboards/db1550.c +++ b/arch/mips/alchemy/devboards/db1550.c @@ -128,7 +128,7 @@ static struct i2c_board_info db1550_i2c_devs[] __initdata = { static void au1550_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long ioaddr = (unsigned long)this->IO_ADDR_W; ioaddr &= 0xffffff00; diff --git a/arch/mips/pnx833x/common/platform.c b/arch/mips/pnx833x/common/platform.c index b4b774bc3178..3cd357737a26 100644 --- a/arch/mips/pnx833x/common/platform.c +++ b/arch/mips/pnx833x/common/platform.c @@ -180,7 +180,7 @@ static struct platform_device pnx833x_sata_device = { static void pnx833x_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *this = mtd->priv; + struct nand_chip *this = mtd_to_nand(mtd); unsigned long nandaddr = (unsigned long)this->IO_ADDR_W; if (cmd == NAND_CMD_NONE) diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c index 9bd7a2de0765..0966adccf520 100644 --- a/arch/mips/rb532/devices.c +++ b/arch/mips/rb532/devices.c @@ -148,7 +148,7 @@ static int rb532_dev_ready(struct mtd_info *mtd) static void rb532_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct nand_chip *chip = mtd->priv; + struct nand_chip *chip = mtd_to_nand(mtd); unsigned char orbits, nandbits; if (ctrl & NAND_CTRL_CHANGE) { -- cgit v1.2.3 From c3168d26c8deea4cc0202bb19341ab55247c3941 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 4 Dec 2015 15:25:13 -0800 Subject: mtd: ofpart: assign return argument exactly once It's easier to refactor these parsers if the return value gets assigned only once, just like every other MTD partition parser. This prepares for making the second arg to the parse_fn() const. This is OK if we construct the partitions completely first, and assign them to the return pointer only after we're done modifying them. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/ofpart.c | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 904645143397..c7df2f1dd6b8 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -29,6 +29,7 @@ static int parse_ofpart_partitions(struct mtd_info *master, struct mtd_partition **pparts, struct mtd_part_parser_data *data) { + struct mtd_partition *parts; struct device_node *mtd_node; struct device_node *ofpart_node; const char *partname; @@ -70,8 +71,8 @@ static int parse_ofpart_partitions(struct mtd_info *master, if (nr_parts == 0) return 0; - *pparts = kzalloc(nr_parts * sizeof(**pparts), GFP_KERNEL); - if (!*pparts) + parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL); + if (!parts) return -ENOMEM; i = 0; @@ -105,19 +106,19 @@ static int parse_ofpart_partitions(struct mtd_info *master, goto ofpart_fail; } - (*pparts)[i].offset = of_read_number(reg, a_cells); - (*pparts)[i].size = of_read_number(reg + a_cells, s_cells); + parts[i].offset = of_read_number(reg, a_cells); + parts[i].size = of_read_number(reg + a_cells, s_cells); partname = of_get_property(pp, "label", &len); if (!partname) partname = of_get_property(pp, "name", &len); - (*pparts)[i].name = partname; + parts[i].name = partname; if (of_get_property(pp, "read-only", &len)) - (*pparts)[i].mask_flags |= MTD_WRITEABLE; + parts[i].mask_flags |= MTD_WRITEABLE; if (of_get_property(pp, "lock", &len)) - (*pparts)[i].mask_flags |= MTD_POWERUP_LOCK; + parts[i].mask_flags |= MTD_POWERUP_LOCK; i++; } @@ -125,6 +126,7 @@ static int parse_ofpart_partitions(struct mtd_info *master, if (!nr_parts) goto ofpart_none; + *pparts = parts; return nr_parts; ofpart_fail: @@ -133,8 +135,7 @@ ofpart_fail: ret = -EINVAL; ofpart_none: of_node_put(pp); - kfree(*pparts); - *pparts = NULL; + kfree(parts); return ret; } @@ -147,6 +148,7 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, struct mtd_partition **pparts, struct mtd_part_parser_data *data) { + struct mtd_partition *parts; struct device_node *dp; int i, plen, nr_parts; const struct { @@ -168,32 +170,33 @@ static int parse_ofoldpart_partitions(struct mtd_info *master, nr_parts = plen / sizeof(part[0]); - *pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL); - if (!*pparts) + parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL); + if (!parts) return -ENOMEM; names = of_get_property(dp, "partition-names", &plen); for (i = 0; i < nr_parts; i++) { - (*pparts)[i].offset = be32_to_cpu(part->offset); - (*pparts)[i].size = be32_to_cpu(part->len) & ~1; + parts[i].offset = be32_to_cpu(part->offset); + parts[i].size = be32_to_cpu(part->len) & ~1; /* bit 0 set signifies read only partition */ if (be32_to_cpu(part->len) & 1) - (*pparts)[i].mask_flags = MTD_WRITEABLE; + parts[i].mask_flags = MTD_WRITEABLE; if (names && (plen > 0)) { int len = strlen(names) + 1; - (*pparts)[i].name = names; + parts[i].name = names; plen -= len; names += len; } else { - (*pparts)[i].name = "unnamed"; + parts[i].name = "unnamed"; } part++; } + *pparts = parts; return nr_parts; } -- cgit v1.2.3 From b9adf469f8abb8a66f5795bbd8fe50fe201a14a1 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 4 Dec 2015 15:25:14 -0800 Subject: mtd: partitions: make parsers return 'const' partition arrays We only want to modify these arrays inside the parser "drivers", so the drivers should construct them however they like, then return them as immutable arrays. This will make other refactorings easier. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/afs.c | 2 +- drivers/mtd/ar7part.c | 2 +- drivers/mtd/bcm47xxpart.c | 2 +- drivers/mtd/bcm63xxpart.c | 2 +- drivers/mtd/cmdlinepart.c | 2 +- drivers/mtd/ofpart.c | 4 ++-- drivers/mtd/redboot.c | 2 +- include/linux/mtd/partitions.h | 2 +- 8 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index e02dae3b739b..d61b7edfc938 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -162,7 +162,7 @@ afs_read_iis_v1(struct mtd_info *mtd, struct image_info_v1 *iis, u_int ptr) } static int parse_afs_partitions(struct mtd_info *mtd, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct mtd_partition *parts; diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c index 9203b96fd789..90575deff0ae 100644 --- a/drivers/mtd/ar7part.c +++ b/drivers/mtd/ar7part.c @@ -43,7 +43,7 @@ struct ar7_bin_rec { }; static int create_mtd_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct ar7_bin_rec header; diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c index 92a6dd18198b..8282f47bcf5d 100644 --- a/drivers/mtd/bcm47xxpart.c +++ b/drivers/mtd/bcm47xxpart.c @@ -82,7 +82,7 @@ out_default: } static int bcm47xxpart_parse(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct mtd_partition *parts; diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c index cf02135320bc..440936998593 100644 --- a/drivers/mtd/bcm63xxpart.c +++ b/drivers/mtd/bcm63xxpart.c @@ -68,7 +68,7 @@ static int bcm63xx_detect_cfe(struct mtd_info *master) } static int bcm63xx_parse_cfe_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { /* CFE, NVRAM and global Linux are always present */ diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index 420489864bc2..fbd5affc0acf 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -304,7 +304,7 @@ static int mtdpart_setup_real(char *s) * the first one in the chain if a NULL mtd_id is passed in. */ static int parse_cmdline_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { unsigned long long offset; diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index c7df2f1dd6b8..ede407d6e106 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -26,7 +26,7 @@ static bool node_has_compatible(struct device_node *pp) } static int parse_ofpart_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct mtd_partition *parts; @@ -145,7 +145,7 @@ static struct mtd_part_parser ofpart_parser = { }; static int parse_ofoldpart_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct mtd_partition *parts; diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 11c3447eb8ff..7623ac5fc586 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -57,7 +57,7 @@ static inline int redboot_checksum(struct fis_image_desc *img) } static int parse_redboot_partitions(struct mtd_info *master, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { int nrparts = 0; diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index d002d9b5d797..6185536daacc 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -69,7 +69,7 @@ struct mtd_part_parser { struct list_head list; struct module *owner; const char *name; - int (*parse_fn)(struct mtd_info *, struct mtd_partition **, + int (*parse_fn)(struct mtd_info *, const struct mtd_partition **, struct mtd_part_parser_data *); }; -- cgit v1.2.3 From 5531ae4818fb04b9a30f87099f44595c1786f518 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 4 Dec 2015 15:25:15 -0800 Subject: mtd: partitions: rename MTD parser get/put We're going to reuse put_partition_parser(), so let's fix up the prefix naming a bit, to hopefully be more consistent. Also make convert to a true C function instead of a macro. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/mtdpart.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index c32b127b1976..4a660ae27bb2 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -687,7 +687,7 @@ int add_mtd_partitions(struct mtd_info *master, static DEFINE_SPINLOCK(part_parser_lock); static LIST_HEAD(part_parsers); -static struct mtd_part_parser *get_partition_parser(const char *name) +static struct mtd_part_parser *mtd_part_parser_get(const char *name) { struct mtd_part_parser *p, *ret = NULL; @@ -704,7 +704,10 @@ static struct mtd_part_parser *get_partition_parser(const char *name) return ret; } -#define put_partition_parser(p) do { module_put((p)->owner); } while (0) +static inline void mtd_part_parser_put(const struct mtd_part_parser *p) +{ + module_put(p->owner); +} int __register_mtd_parser(struct mtd_part_parser *p, struct module *owner) { @@ -768,9 +771,9 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, for ( ; *types; types++) { pr_debug("%s: parsing partitions %s\n", master->name, *types); - parser = get_partition_parser(*types); + parser = mtd_part_parser_get(*types); if (!parser && !request_module("%s", *types)) - parser = get_partition_parser(*types); + parser = mtd_part_parser_get(*types); pr_debug("%s: got parser %s\n", master->name, parser ? parser->name : NULL); if (!parser) @@ -778,7 +781,7 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, ret = (*parser->parse_fn)(master, pparts, data); pr_debug("%s: parser %s: %i\n", master->name, parser->name, ret); - put_partition_parser(parser); + mtd_part_parser_put(parser); if (ret > 0) { printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", ret, parser->name, master->name); -- cgit v1.2.3 From c42c2710d64381fd48d36b278e0744aa683d93fe Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 4 Dec 2015 15:25:16 -0800 Subject: mtd: partitions: remove kmemdup() The use of kmemdup() complicates the error handling a bit. We don't actually need to allocate new memory, since this reference is treated as const, and it is copied into new memory by the partition registration code anyway. So remove it. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/mtdcore.c | 16 +++++++--------- drivers/mtd/mtdcore.h | 2 +- drivers/mtd/mtdpart.c | 2 +- 3 files changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 62f83b050978..868ee52d5063 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -532,7 +532,7 @@ out_error: } static int mtd_add_device_partitions(struct mtd_info *mtd, - struct mtd_partition *real_parts, + const struct mtd_partition *real_parts, int nbparts) { int ret; @@ -589,16 +589,12 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types, int nr_parts) { int ret; - struct mtd_partition *real_parts = NULL; + const struct mtd_partition *real_parts = NULL; ret = parse_mtd_partitions(mtd, types, &real_parts, parser_data); if (ret <= 0 && nr_parts && parts) { - real_parts = kmemdup(parts, sizeof(*parts) * nr_parts, - GFP_KERNEL); - if (!real_parts) - ret = -ENOMEM; - else - ret = nr_parts; + real_parts = parts; + ret = nr_parts; } /* Didn't come up with either parsed OR fallback partitions */ if (ret < 0) { @@ -628,7 +624,9 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types, } out: - kfree(real_parts); + /* Cleanup any parsed partitions */ + if (real_parts != parts) + kfree(real_parts); return ret; } EXPORT_SYMBOL_GPL(mtd_device_parse_register); diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h index 7b0353399a10..537ec66f9cfd 100644 --- a/drivers/mtd/mtdcore.h +++ b/drivers/mtd/mtdcore.h @@ -11,7 +11,7 @@ int del_mtd_device(struct mtd_info *mtd); int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); int del_mtd_partitions(struct mtd_info *); int parse_mtd_partitions(struct mtd_info *master, const char * const *types, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data); int __init init_mtdchar(void); diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 4a660ae27bb2..898999c5aea1 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -760,7 +760,7 @@ static const char * const default_mtd_part_types[] = { * point to an array containing this number of &struct mtd_info objects. */ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, - struct mtd_partition **pparts, + const struct mtd_partition **pparts, struct mtd_part_parser_data *data) { struct mtd_part_parser *parser; -- cgit v1.2.3 From 07fd2f871c5e3dfb8ff5eb9c4b44fdb4cf1aeff5 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 4 Dec 2015 15:25:17 -0800 Subject: mtd: partitions: pass around 'mtd_partitions' wrapper struct For some of the core partitioning code, it helps to keep info about the parsed partition (and who parsed them) together in one place. Signed-off-by: Brian Norris --- drivers/mtd/mtdcore.c | 33 +++++++++++++++++++-------------- drivers/mtd/mtdcore.h | 5 ++++- drivers/mtd/mtdpart.c | 15 ++++++++------- include/linux/mtd/partitions.h | 7 +++++++ 4 files changed, 38 insertions(+), 22 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 868ee52d5063..20b2b38247b6 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -532,9 +532,10 @@ out_error: } static int mtd_add_device_partitions(struct mtd_info *mtd, - const struct mtd_partition *real_parts, - int nbparts) + struct mtd_partitions *parts) { + const struct mtd_partition *real_parts = parts->parts; + int nbparts = parts->nr_parts; int ret; if (nbparts == 0 || IS_ENABLED(CONFIG_MTD_PARTITIONED_MASTER)) { @@ -588,23 +589,27 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types, const struct mtd_partition *parts, int nr_parts) { + struct mtd_partitions parsed; int ret; - const struct mtd_partition *real_parts = NULL; - ret = parse_mtd_partitions(mtd, types, &real_parts, parser_data); - if (ret <= 0 && nr_parts && parts) { - real_parts = parts; - ret = nr_parts; - } - /* Didn't come up with either parsed OR fallback partitions */ - if (ret < 0) { + memset(&parsed, 0, sizeof(parsed)); + + ret = parse_mtd_partitions(mtd, types, &parsed, parser_data); + if ((ret < 0 || parsed.nr_parts == 0) && parts && nr_parts) { + /* Fall back to driver-provided partitions */ + parsed = (struct mtd_partitions){ + .parts = parts, + .nr_parts = nr_parts, + }; + } else if (ret < 0) { + /* Didn't come up with parsed OR fallback partitions */ pr_info("mtd: failed to find partitions; one or more parsers reports errors (%d)\n", ret); /* Don't abort on errors; we can still use unpartitioned MTD */ - ret = 0; + memset(&parsed, 0, sizeof(parsed)); } - ret = mtd_add_device_partitions(mtd, real_parts, ret); + ret = mtd_add_device_partitions(mtd, &parsed); if (ret) goto out; @@ -625,8 +630,8 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types, out: /* Cleanup any parsed partitions */ - if (real_parts != parts) - kfree(real_parts); + if (parsed.parser) + kfree(parsed.parts); return ret; } EXPORT_SYMBOL_GPL(mtd_device_parse_register); diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h index 537ec66f9cfd..ce81cc2002f4 100644 --- a/drivers/mtd/mtdcore.h +++ b/drivers/mtd/mtdcore.h @@ -10,8 +10,11 @@ int add_mtd_device(struct mtd_info *mtd); int del_mtd_device(struct mtd_info *mtd); int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); int del_mtd_partitions(struct mtd_info *); + +struct mtd_partitions; + int parse_mtd_partitions(struct mtd_info *master, const char * const *types, - const struct mtd_partition **pparts, + struct mtd_partitions *pparts, struct mtd_part_parser_data *data); int __init init_mtdchar(void); diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 898999c5aea1..53517d7653cb 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -743,7 +743,7 @@ static const char * const default_mtd_part_types[] = { * parse_mtd_partitions - parse MTD partitions * @master: the master partition (describes whole MTD device) * @types: names of partition parsers to try or %NULL - * @pparts: array of partitions found is returned here + * @pparts: info about partitions found is returned here * @data: MTD partition parser-specific data * * This function tries to find partition on MTD device @master. It uses MTD @@ -755,12 +755,11 @@ static const char * const default_mtd_part_types[] = { * * This function may return: * o a negative error code in case of failure - * o zero if no partitions were found - * o a positive number of found partitions, in which case on exit @pparts will - * point to an array containing this number of &struct mtd_info objects. + * o zero otherwise, and @pparts will describe the partitions, number of + * partitions, and the parser which parsed them */ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, - const struct mtd_partition **pparts, + struct mtd_partitions *pparts, struct mtd_part_parser_data *data) { struct mtd_part_parser *parser; @@ -778,14 +777,16 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, parser ? parser->name : NULL); if (!parser) continue; - ret = (*parser->parse_fn)(master, pparts, data); + ret = (*parser->parse_fn)(master, &pparts->parts, data); pr_debug("%s: parser %s: %i\n", master->name, parser->name, ret); mtd_part_parser_put(parser); if (ret > 0) { printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", ret, parser->name, master->name); - return ret; + pparts->nr_parts = ret; + pparts->parser = parser; + return 0; } /* * Stash the first error we see; only report it if no parser diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 6185536daacc..cceaf7bd1537 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -73,6 +73,13 @@ struct mtd_part_parser { struct mtd_part_parser_data *); }; +/* Container for passing around a set of parsed partitions */ +struct mtd_partitions { + const struct mtd_partition *parts; + int nr_parts; + const struct mtd_part_parser *parser; +}; + extern int __register_mtd_parser(struct mtd_part_parser *parser, struct module *owner); #define register_mtd_parser(parser) __register_mtd_parser(parser, THIS_MODULE) -- cgit v1.2.3 From adc83bf8896353603213754353dd66dae69e3d7f Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 9 Dec 2015 10:24:03 -0800 Subject: mtd: partitions: support a cleanup callback for parsers If partition parsers need to clean up their resources, we shouldn't assume that all memory will fit in a single kmalloc() that the caller can kfree(). We should allow the parser to provide a proper cleanup routine. Note that this means we need to keep a hold on the parser's module for a bit longer, and release it later with mtd_part_parser_put(). Alongside this, define a default callback that we'll automatically use if the parser doesn't provide one, so we can still retain the old behavior. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/mtdcore.c | 3 +-- drivers/mtd/mtdcore.h | 2 ++ drivers/mtd/mtdpart.c | 35 +++++++++++++++++++++++++++++++++-- include/linux/mtd/partitions.h | 1 + 4 files changed, 37 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 20b2b38247b6..89d811e7b04a 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -630,8 +630,7 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char * const *types, out: /* Cleanup any parsed partitions */ - if (parsed.parser) - kfree(parsed.parts); + mtd_part_parser_cleanup(&parsed); return ret; } EXPORT_SYMBOL_GPL(mtd_device_parse_register); diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h index ce81cc2002f4..55fdb8e1fd2a 100644 --- a/drivers/mtd/mtdcore.h +++ b/drivers/mtd/mtdcore.h @@ -17,6 +17,8 @@ int parse_mtd_partitions(struct mtd_info *master, const char * const *types, struct mtd_partitions *pparts, struct mtd_part_parser_data *data); +void mtd_part_parser_cleanup(struct mtd_partitions *parts); + int __init init_mtdchar(void); void __exit cleanup_mtdchar(void); diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 53517d7653cb..10bf304027dd 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -709,10 +709,23 @@ static inline void mtd_part_parser_put(const struct mtd_part_parser *p) module_put(p->owner); } +/* + * Many partition parsers just expected the core to kfree() all their data in + * one chunk. Do that by default. + */ +static void mtd_part_parser_cleanup_default(const struct mtd_partition *pparts, + int nr_parts) +{ + kfree(pparts); +} + int __register_mtd_parser(struct mtd_part_parser *p, struct module *owner) { p->owner = owner; + if (!p->cleanup) + p->cleanup = &mtd_part_parser_cleanup_default; + spin_lock(&part_parser_lock); list_add(&p->list, &part_parsers); spin_unlock(&part_parser_lock); @@ -756,7 +769,9 @@ static const char * const default_mtd_part_types[] = { * This function may return: * o a negative error code in case of failure * o zero otherwise, and @pparts will describe the partitions, number of - * partitions, and the parser which parsed them + * partitions, and the parser which parsed them. Caller must release + * resources with mtd_part_parser_cleanup() when finished with the returned + * data. */ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, struct mtd_partitions *pparts, @@ -780,7 +795,6 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, ret = (*parser->parse_fn)(master, &pparts->parts, data); pr_debug("%s: parser %s: %i\n", master->name, parser->name, ret); - mtd_part_parser_put(parser); if (ret > 0) { printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", ret, parser->name, master->name); @@ -788,6 +802,7 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, pparts->parser = parser; return 0; } + mtd_part_parser_put(parser); /* * Stash the first error we see; only report it if no parser * succeeds @@ -798,6 +813,22 @@ int parse_mtd_partitions(struct mtd_info *master, const char *const *types, return err; } +void mtd_part_parser_cleanup(struct mtd_partitions *parts) +{ + const struct mtd_part_parser *parser; + + if (!parts) + return; + + parser = parts->parser; + if (parser) { + if (parser->cleanup) + parser->cleanup(parts->parts, parts->nr_parts); + + mtd_part_parser_put(parser); + } +} + int mtd_is_partition(const struct mtd_info *mtd) { struct mtd_part *part; diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index cceaf7bd1537..70736e1e6c8f 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -71,6 +71,7 @@ struct mtd_part_parser { const char *name; int (*parse_fn)(struct mtd_info *, const struct mtd_partition **, struct mtd_part_parser_data *); + void (*cleanup)(const struct mtd_partition *pparts, int nr_parts); }; /* Container for passing around a set of parsed partitions */ -- cgit v1.2.3 From f49289ce64b7f7da4d7129666854b499b9d415eb Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Fri, 20 Nov 2015 16:26:11 -0200 Subject: mtd: spi-nor: Check the return value from read_sr() We should better check the return value from read_sr() and propagate it in the case of error. Signed-off-by: Fabio Estevam Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 3b2460efc019..7e5051e604b0 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -478,11 +478,13 @@ static int stm_is_locked_sr(struct spi_nor *nor, loff_t ofs, uint64_t len, static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len) { struct mtd_info *mtd = &nor->mtd; - u8 status_old, status_new; + int status_old, status_new; u8 mask = SR_BP2 | SR_BP1 | SR_BP0; u8 shift = ffs(mask) - 1, pow, val; status_old = read_sr(nor); + if (status_old < 0) + return status_old; /* SPI NOR always locks to the end */ if (ofs + len != mtd->size) { @@ -528,11 +530,13 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len) static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len) { struct mtd_info *mtd = &nor->mtd; - uint8_t status_old, status_new; + int status_old, status_new; u8 mask = SR_BP2 | SR_BP1 | SR_BP0; u8 shift = ffs(mask) - 1, pow, val; status_old = read_sr(nor); + if (status_old < 0) + return status_old; /* Cannot unlock; would unlock larger region than requested */ if (stm_is_locked_sr(nor, status_old, ofs - mtd->erasesize, @@ -1032,6 +1036,8 @@ static int macronix_quad_enable(struct spi_nor *nor) int ret, val; val = read_sr(nor); + if (val < 0) + return val; write_enable(nor); write_sr(nor, val | SR_QUAD_EN_MX); -- cgit v1.2.3 From d5c5620167d0fde476a0c0d8bb1f5751bcc1e495 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 8 Dec 2015 18:40:59 +0100 Subject: mtd: nand: Confine MTD_NAND_SH_FLCTL to SUPERH As of commit a521422ea4ae6128 ("ARM: shmobile: mackerel: Remove Legacy C board code"), the Renesas SuperH FLCTL driver is no longer used on ARM SH-Mobile SoCs. Restrict the dependencies, unless compile-testing. Signed-off-by: Geert Uytterhoeven Signed-off-by: Brian Norris --- drivers/mtd/nand/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 289664089cf3..6c71f623a932 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -480,7 +480,7 @@ config MTD_NAND_MXC config MTD_NAND_SH_FLCTL tristate "Support for NAND on Renesas SuperH FLCTL" - depends on SUPERH || ARCH_SHMOBILE || COMPILE_TEST + depends on SUPERH || COMPILE_TEST depends on HAS_IOMEM depends on HAS_DMA help -- cgit v1.2.3 From d135d1c158618c73346a898b6a08018013e43715 Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Wed, 9 Dec 2015 20:40:58 +0000 Subject: doc: dt: mtd: brcmnand: Add brcm,bcm6368-nand device tree binding Add device tree binding for NAND on the BCM6368. The BCM6368 has a NAND interrupt register with combined status and enable registers. It also requires a clock, so add an optional clock to the common brcmnand binding. Signed-off-by: Simon Arlott Reviewed-by: Florian Fainelli Acked-by: Rob Herring Signed-off-by: Brian Norris --- .../devicetree/bindings/mtd/brcm,brcmnand.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt index 4ff7128ee3b2..c2546ced9c02 100644 --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt @@ -45,6 +45,8 @@ Required properties: - #size-cells : <0> Optional properties: +- clock : reference to the clock for the NAND controller +- clock-names : "nand" (required for the above clock) - brcm,nand-has-wp : Some versions of this IP include a write-protect (WP) control bit. It is always available on >= v7.0. Use this property to describe the rare @@ -72,6 +74,12 @@ we define additional 'compatible' properties and associated register resources w and enable registers - reg-names: (required) "nand-int-base" + * "brcm,nand-bcm6368" + - compatible: should contain "brcm,nand-bcm", "brcm,nand-bcm6368" + - reg: (required) the 'NAND_INTR_BASE' register range, with combined status + and enable registers, and boot address registers + - reg-names: (required) "nand-int-base" + * "brcm,nand-iproc" - reg: (required) the "IDM" register range, for interrupt enable and APB bus access endianness configuration, and the "EXT" register range, @@ -148,3 +156,27 @@ nand@f0442800 { }; }; }; + +nand@10000200 { + compatible = "brcm,nand-bcm63168", "brcm,nand-bcm6368", + "brcm,brcmnand-v4.0", "brcm,brcmnand"; + reg = <0x10000200 0x180>, + <0x10000600 0x200>, + <0x100000b0 0x10>; + reg-names = "nand", "nand-cache", "nand-int-base"; + interrupt-parent = <&periph_intc>; + interrupts = <50>; + clocks = <&periph_clk 20>; + clock-names = "nand"; + + #address-cells = <1>; + #size-cells = <0>; + + nand0: nandcs@0 { + compatible = "brcm,nandcs"; + reg = <0>; + nand-on-flash-bbt; + nand-ecc-strength = <1>; + nand-ecc-step-size = <512>; + }; +}; -- cgit v1.2.3 From 5c05bc00721bbe223ce93d8873ac42c8170d809c Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Wed, 9 Dec 2015 20:42:25 +0000 Subject: mtd: brcmnand: Request and enable the clock if present Attempt to enable a clock named "nand" as some SoCs have a clock for the controller that needs to be enabled. Signed-off-by: Simon Arlott Reviewed-by: Florian Fainelli Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 64 ++++++++++++++++++++++++++++-------- 1 file changed, 50 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 190a99a66010..dca816298aef 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -11,6 +11,7 @@ * GNU General Public License for more details. */ +#include #include #include #include @@ -122,6 +123,9 @@ struct brcmnand_controller { /* Some SoCs provide custom interrupt status register(s) */ struct brcmnand_soc *soc; + /* Some SoCs have a gateable clock for the controller */ + struct clk *clk; + int cmd_pending; bool dma_pending; struct completion done; @@ -2127,10 +2131,24 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) if (IS_ERR(ctrl->nand_base)) return PTR_ERR(ctrl->nand_base); + /* Enable clock before using NAND registers */ + ctrl->clk = devm_clk_get(dev, "nand"); + if (!IS_ERR(ctrl->clk)) { + ret = clk_prepare_enable(ctrl->clk); + if (ret) + return ret; + } else { + ret = PTR_ERR(ctrl->clk); + if (ret == -EPROBE_DEFER) + return ret; + + ctrl->clk = NULL; + } + /* Initialize NAND revision */ ret = brcmnand_revision_init(ctrl); if (ret) - return ret; + goto err; /* * Most chips have this cache at a fixed offset within 'nand' block. @@ -2139,8 +2157,10 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand-cache"); if (res) { ctrl->nand_fc = devm_ioremap_resource(dev, res); - if (IS_ERR(ctrl->nand_fc)) - return PTR_ERR(ctrl->nand_fc); + if (IS_ERR(ctrl->nand_fc)) { + ret = PTR_ERR(ctrl->nand_fc); + goto err; + } } else { ctrl->nand_fc = ctrl->nand_base + ctrl->reg_offsets[BRCMNAND_FC_BASE]; @@ -2150,8 +2170,10 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "flash-dma"); if (res) { ctrl->flash_dma_base = devm_ioremap_resource(dev, res); - if (IS_ERR(ctrl->flash_dma_base)) - return PTR_ERR(ctrl->flash_dma_base); + if (IS_ERR(ctrl->flash_dma_base)) { + ret = PTR_ERR(ctrl->flash_dma_base); + goto err; + } flash_dma_writel(ctrl, FLASH_DMA_MODE, 1); /* linked-list */ flash_dma_writel(ctrl, FLASH_DMA_ERROR_STATUS, 0); @@ -2160,13 +2182,16 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) ctrl->dma_desc = dmam_alloc_coherent(dev, sizeof(*ctrl->dma_desc), &ctrl->dma_pa, GFP_KERNEL); - if (!ctrl->dma_desc) - return -ENOMEM; + if (!ctrl->dma_desc) { + ret = -ENOMEM; + goto err; + } ctrl->dma_irq = platform_get_irq(pdev, 1); if ((int)ctrl->dma_irq < 0) { dev_err(dev, "missing FLASH_DMA IRQ\n"); - return -ENODEV; + ret = -ENODEV; + goto err; } ret = devm_request_irq(dev, ctrl->dma_irq, @@ -2175,7 +2200,7 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) if (ret < 0) { dev_err(dev, "can't allocate IRQ %d: error %d\n", ctrl->dma_irq, ret); - return ret; + goto err; } dev_info(dev, "enabling FLASH_DMA\n"); @@ -2199,7 +2224,8 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) ctrl->irq = platform_get_irq(pdev, 0); if ((int)ctrl->irq < 0) { dev_err(dev, "no IRQ defined\n"); - return -ENODEV; + ret = -ENODEV; + goto err; } /* @@ -2223,7 +2249,7 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) if (ret < 0) { dev_err(dev, "can't allocate IRQ %d: error %d\n", ctrl->irq, ret); - return ret; + goto err; } for_each_available_child_of_node(dn, child) { @@ -2233,7 +2259,8 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); if (!host) { of_node_put(child); - return -ENOMEM; + ret = -ENOMEM; + goto err; } host->pdev = pdev; host->ctrl = ctrl; @@ -2249,10 +2276,17 @@ int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc) } /* No chip-selects could initialize properly */ - if (list_empty(&ctrl->host_list)) - return -ENODEV; + if (list_empty(&ctrl->host_list)) { + ret = -ENODEV; + goto err; + } return 0; + +err: + clk_disable_unprepare(ctrl->clk); + return ret; + } EXPORT_SYMBOL_GPL(brcmnand_probe); @@ -2264,6 +2298,8 @@ int brcmnand_remove(struct platform_device *pdev) list_for_each_entry(host, &ctrl->host_list, node) nand_release(&host->mtd); + clk_disable_unprepare(ctrl->clk); + dev_set_drvdata(&pdev->dev, NULL); return 0; -- cgit v1.2.3 From af3855dd191799a797e80dc55ecd5a9a226c3e2c Mon Sep 17 00:00:00 2001 From: Simon Arlott Date: Wed, 9 Dec 2015 20:43:54 +0000 Subject: mtd: brcmnand: Add support for the BCM6368 The BCM6368 has a NAND interrupt register with combined status and enable registers. As the BCM6328, BCM6362 and BCM6368 all use v2.1 controllers, the first variant that will work with this driver is the BCM63268 using a v4.0 controller. Set up the device by disabling and acking all interrupts, then handle the CTRL_READY interrupt. Signed-off-by: Simon Arlott Reviewed-by: Florian Fainelli Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/Makefile | 1 + drivers/mtd/nand/brcmnand/bcm6368_nand.c | 145 +++++++++++++++++++++++++++++++ 2 files changed, 146 insertions(+) create mode 100644 drivers/mtd/nand/brcmnand/bcm6368_nand.c diff --git a/drivers/mtd/nand/brcmnand/Makefile b/drivers/mtd/nand/brcmnand/Makefile index 3b1fbfd27d4f..b28ffb59eb43 100644 --- a/drivers/mtd/nand/brcmnand/Makefile +++ b/drivers/mtd/nand/brcmnand/Makefile @@ -2,5 +2,6 @@ # more specific iproc_nand.o, for instance obj-$(CONFIG_MTD_NAND_BRCMNAND) += iproc_nand.o obj-$(CONFIG_MTD_NAND_BRCMNAND) += bcm63138_nand.o +obj-$(CONFIG_MTD_NAND_BRCMNAND) += bcm6368_nand.o obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmstb_nand.o obj-$(CONFIG_MTD_NAND_BRCMNAND) += brcmnand.o diff --git a/drivers/mtd/nand/brcmnand/bcm6368_nand.c b/drivers/mtd/nand/brcmnand/bcm6368_nand.c new file mode 100644 index 000000000000..7f5359be24f2 --- /dev/null +++ b/drivers/mtd/nand/brcmnand/bcm6368_nand.c @@ -0,0 +1,145 @@ +/* + * Copyright 2015 Simon Arlott + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Derived from bcm63138_nand.c: + * Copyright © 2015 Broadcom Corporation + * + * Derived from bcm963xx_4.12L.06B_consumer/shared/opensource/include/bcm963xx/63268_map_part.h: + * Copyright 2000-2010 Broadcom Corporation + * + * Derived from bcm963xx_4.12L.06B_consumer/shared/opensource/flash/nandflash.c: + * Copyright 2000-2010 Broadcom Corporation + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "brcmnand.h" + +struct bcm6368_nand_soc { + struct brcmnand_soc soc; + void __iomem *base; +}; + +#define BCM6368_NAND_INT 0x00 +#define BCM6368_NAND_STATUS_SHIFT 0 +#define BCM6368_NAND_STATUS_MASK (0xfff << BCM6368_NAND_STATUS_SHIFT) +#define BCM6368_NAND_ENABLE_SHIFT 16 +#define BCM6368_NAND_ENABLE_MASK (0xffff << BCM6368_NAND_ENABLE_SHIFT) +#define BCM6368_NAND_BASE_ADDR0 0x04 +#define BCM6368_NAND_BASE_ADDR1 0x0c + +enum { + BCM6368_NP_READ = BIT(0), + BCM6368_BLOCK_ERASE = BIT(1), + BCM6368_COPY_BACK = BIT(2), + BCM6368_PAGE_PGM = BIT(3), + BCM6368_CTRL_READY = BIT(4), + BCM6368_DEV_RBPIN = BIT(5), + BCM6368_ECC_ERR_UNC = BIT(6), + BCM6368_ECC_ERR_CORR = BIT(7), +}; + +static bool bcm6368_nand_intc_ack(struct brcmnand_soc *soc) +{ + struct bcm6368_nand_soc *priv = + container_of(soc, struct bcm6368_nand_soc, soc); + void __iomem *mmio = priv->base + BCM6368_NAND_INT; + u32 val = brcmnand_readl(mmio); + + if (val & (BCM6368_CTRL_READY << BCM6368_NAND_STATUS_SHIFT)) { + /* Ack interrupt */ + val &= ~BCM6368_NAND_STATUS_MASK; + val |= BCM6368_CTRL_READY << BCM6368_NAND_STATUS_SHIFT; + brcmnand_writel(val, mmio); + return true; + } + + return false; +} + +static void bcm6368_nand_intc_set(struct brcmnand_soc *soc, bool en) +{ + struct bcm6368_nand_soc *priv = + container_of(soc, struct bcm6368_nand_soc, soc); + void __iomem *mmio = priv->base + BCM6368_NAND_INT; + u32 val = brcmnand_readl(mmio); + + /* Don't ack any interrupts */ + val &= ~BCM6368_NAND_STATUS_MASK; + + if (en) + val |= BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT; + else + val &= ~(BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT); + + brcmnand_writel(val, mmio); +} + +static int bcm6368_nand_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm6368_nand_soc *priv; + struct brcmnand_soc *soc; + struct resource *res; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + soc = &priv->soc; + + res = platform_get_resource_byname(pdev, + IORESOURCE_MEM, "nand-int-base"); + if (!res) + return -EINVAL; + + priv->base = devm_ioremap_resource(dev, res); + if (IS_ERR(priv->base)) + return PTR_ERR(priv->base); + + soc->ctlrdy_ack = bcm6368_nand_intc_ack; + soc->ctlrdy_set_enabled = bcm6368_nand_intc_set; + + /* Disable and ack all interrupts */ + brcmnand_writel(0, priv->base + BCM6368_NAND_INT); + brcmnand_writel(BCM6368_NAND_STATUS_MASK, + priv->base + BCM6368_NAND_INT); + + return brcmnand_probe(pdev, soc); +} + +static const struct of_device_id bcm6368_nand_of_match[] = { + { .compatible = "brcm,nand-bcm6368" }, + {}, +}; +MODULE_DEVICE_TABLE(of, bcm6368_nand_of_match); + +static struct platform_driver bcm6368_nand_driver = { + .probe = bcm6368_nand_probe, + .remove = brcmnand_remove, + .driver = { + .name = "bcm6368_nand", + .pm = &brcmnand_pm_ops, + .of_match_table = bcm6368_nand_of_match, + } +}; +module_platform_driver(bcm6368_nand_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Simon Arlott"); +MODULE_DESCRIPTION("NAND driver for BCM6368"); -- cgit v1.2.3 From 207f6582dd9adb8e2ed64b4c64d6d5c009e5bbf9 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 9 Dec 2015 18:33:17 -0800 Subject: mtd: brcmnand: defer to devm_ioremap_resource() for error checking devm_ioremap_resource() does error checking on the 'res' argument, so drop the error check in bcm6368_nand.c. Signed-off-by: Brian Norris Tested-by: Simon Arlott --- drivers/mtd/nand/brcmnand/bcm6368_nand.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/bcm6368_nand.c b/drivers/mtd/nand/brcmnand/bcm6368_nand.c index 7f5359be24f2..34c91b0e1e69 100644 --- a/drivers/mtd/nand/brcmnand/bcm6368_nand.c +++ b/drivers/mtd/nand/brcmnand/bcm6368_nand.c @@ -105,9 +105,6 @@ static int bcm6368_nand_probe(struct platform_device *pdev) res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nand-int-base"); - if (!res) - return -EINVAL; - priv->base = devm_ioremap_resource(dev, res); if (IS_ERR(priv->base)) return PTR_ERR(priv->base); -- cgit v1.2.3 From 320092a05dab2f44819c42f33d6b51efb6c474f2 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Fri, 11 Dec 2015 15:02:34 +0100 Subject: mtd: nand: denali: add missing nand_release() call in denali_remove() Unregister the NAND device from the NAND subsystem when removing a denali NAND controller, otherwise the MTD attached to the NAND device is still exposed by the MTD layer, and accesses to this device will likely crash the system. Fixes: 2a0a288ec258 ("mtd: denali: split the generic driver and PCI layer") Signed-off-by: Boris Brezillon Acked-by: Dinh Nguyen Signed-off-by: Brian Norris --- drivers/mtd/nand/denali.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 67eb2be0db87..9a5035cac129 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1622,9 +1622,16 @@ EXPORT_SYMBOL(denali_init); /* driver exit point */ void denali_remove(struct denali_nand_info *denali) { + /* + * Pre-compute DMA buffer size to avoid any problems in case + * nand_release() ever changes in a way that mtd->writesize and + * mtd->oobsize are not reliable after this call. + */ + int bufsize = denali->mtd.writesize + denali->mtd.oobsize; + + nand_release(&denali->mtd); denali_irq_cleanup(denali->irq, denali); - dma_unmap_single(denali->dev, denali->buf.dma_buf, - denali->mtd.writesize + denali->mtd.oobsize, + dma_unmap_single(denali->dev, denali->buf.dma_buf, bufsize, DMA_BIDIRECTIONAL); } EXPORT_SYMBOL(denali_remove); -- cgit v1.2.3 From 665d2c2848f14c0c2a2e89192bde9073c4d352f7 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 8 Dec 2015 17:04:59 -0800 Subject: mtd: bcm47xxnflash: really unregister NAND on device removal MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The field bcma_nflash::mtd is never set to be non-zero anywhere, but we test for it in the removal path. So the MTD is never unregistered. Also, we should use nand_release(), not mtd_device_unregister(). Finally, we don't need to use the 'platdata' for stashing/retrieving our *driver* data -- that's what *_{get,set}_drvdata() are for. So, kill off bcm_nflash::mtd, and stash the struct bcm47xxnflash in drvdata instead. Also move the forward declaration of mtd_info up a bit, since struct bcma_sflash should be using it. Caught while inspecting other changes being made to this driver. Compile tested only. Signed-off-by: Brian Norris Cc: "RafaÅ‚ MiÅ‚ecki" Cc: linux-wireless@vger.kernel.org Acked-by: Boris Brezillon --- drivers/mtd/nand/bcm47xxnflash/main.c | 7 ++++--- include/linux/bcma/bcma_driver_chipcommon.h | 6 ++---- 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index 9ba0c0f2cd9b..0b3acc439181 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -49,6 +49,8 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) return err; } + platform_set_drvdata(pdev, b47n); + err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0); if (err) { pr_err("Failed to register MTD device: %d\n", err); @@ -60,10 +62,9 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) static int bcm47xxnflash_remove(struct platform_device *pdev) { - struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); + struct bcm47xxnflash *nflash = platform_get_drvdata(pdev); - if (nflash->mtd) - mtd_device_unregister(nflash->mtd); + nand_release(&nflash->mtd); return 0; } diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index cf038431a5cc..db51a6ffb7d6 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -579,6 +579,8 @@ struct bcma_pflash { }; #ifdef CONFIG_BCMA_SFLASH +struct mtd_info; + struct bcma_sflash { bool present; u32 window; @@ -592,13 +594,9 @@ struct bcma_sflash { #endif #ifdef CONFIG_BCMA_NFLASH -struct mtd_info; - struct bcma_nflash { bool present; bool boot; /* This is the flash the SoC boots from */ - - struct mtd_info *mtd; }; #endif -- cgit v1.2.3 From ce7f28531fe05fcabc8ccff8b6dc9b4b296a811e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 18 Dec 2015 14:15:17 +0100 Subject: mtd: omap_elm: print interrupt resource using %pr When CONFIG_LPAE is set on ARM, resource_size_t is 64-bit wide and we get a warning about an incorrect format string for printing the interrupt number in elm_probe: drivers/mtd/nand/omap_elm.c: In function 'elm_probe': drivers/mtd/nand/omap_elm.c:417:23: warning: format '%i' expects argument of type 'int', but argument 3 has type 'resource_size_t {aka long long unsigned int}' [-Wformat=] This patch avoids the type mismatch by printing the interrupt as a resource using the %pr format string. Signed-off-by: Arnd Bergmann Signed-off-by: Brian Norris --- drivers/mtd/nand/omap_elm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c index 235ec7992b4c..a3f32f939cc1 100644 --- a/drivers/mtd/nand/omap_elm.c +++ b/drivers/mtd/nand/omap_elm.c @@ -414,7 +414,7 @@ static int elm_probe(struct platform_device *pdev) ret = devm_request_irq(&pdev->dev, irq->start, elm_isr, 0, pdev->name, info); if (ret) { - dev_err(&pdev->dev, "failure requesting irq %i\n", irq->start); + dev_err(&pdev->dev, "failure requesting %pr\n", irq); return ret; } -- cgit v1.2.3 From 277af429fb40cf484c4a76c0b4cde2afc3e0c3d0 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:46 +0100 Subject: mtd: nand: fsmc: create and use mtd_to_fsmc() Create and use mtd_to_fsmc() to avoid duplication of container_of(mtd, struct fsmc_nand_data, mtd) calls. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/fsmc_nand.c | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 1c6c399496c2..499fc5925c23 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -326,13 +326,18 @@ struct fsmc_nand_data { void (*select_chip)(uint32_t bank, uint32_t busw); }; +static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd) +{ + return container_of(mtd, struct fsmc_nand_data, mtd); +} + /* Assert CS signal based on chipnr */ static void fsmc_select_chip(struct mtd_info *mtd, int chipnr) { struct nand_chip *chip = mtd_to_nand(mtd); struct fsmc_nand_data *host; - host = container_of(mtd, struct fsmc_nand_data, mtd); + host = mtd_to_fsmc(mtd); switch (chipnr) { case -1: @@ -359,8 +364,7 @@ static void fsmc_select_chip(struct mtd_info *mtd, int chipnr) static void fsmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *this = mtd_to_nand(mtd); - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); void __iomem *regs = host->regs_va; unsigned int bank = host->bank; @@ -445,8 +449,7 @@ static void fsmc_nand_setup(void __iomem *regs, uint32_t bank, */ static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode) { - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); void __iomem *regs = host->regs_va; uint32_t bank = host->bank; @@ -466,8 +469,7 @@ static void fsmc_enable_hwecc(struct mtd_info *mtd, int mode) static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data, uint8_t *ecc) { - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); void __iomem *regs = host->regs_va; uint32_t bank = host->bank; uint32_t ecc_tmp; @@ -517,8 +519,7 @@ static int fsmc_read_hwecc_ecc4(struct mtd_info *mtd, const uint8_t *data, static int fsmc_read_hwecc_ecc1(struct mtd_info *mtd, const uint8_t *data, uint8_t *ecc) { - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); void __iomem *regs = host->regs_va; uint32_t bank = host->bank; uint32_t ecc_tmp; @@ -674,9 +675,8 @@ static void fsmc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) */ static void fsmc_read_buf_dma(struct mtd_info *mtd, uint8_t *buf, int len) { - struct fsmc_nand_data *host; + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); - host = container_of(mtd, struct fsmc_nand_data, mtd); dma_xfer(host, buf, len, DMA_FROM_DEVICE); } @@ -689,9 +689,8 @@ static void fsmc_read_buf_dma(struct mtd_info *mtd, uint8_t *buf, int len) static void fsmc_write_buf_dma(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct fsmc_nand_data *host; + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); - host = container_of(mtd, struct fsmc_nand_data, mtd); dma_xfer(host, (void *)buf, len, DMA_TO_DEVICE); } @@ -712,8 +711,7 @@ static void fsmc_write_buf_dma(struct mtd_info *mtd, const uint8_t *buf, static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); struct fsmc_eccplace *ecc_place = host->ecc_place; int i, j, s, stat, eccsize = chip->ecc.size; int eccbytes = chip->ecc.bytes; @@ -782,9 +780,8 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, static int fsmc_bch8_correct_data(struct mtd_info *mtd, uint8_t *dat, uint8_t *read_ecc, uint8_t *calc_ecc) { - struct fsmc_nand_data *host = container_of(mtd, - struct fsmc_nand_data, mtd); struct nand_chip *chip = mtd_to_nand(mtd); + struct fsmc_nand_data *host = mtd_to_fsmc(mtd); void __iomem *regs = host->regs_va; unsigned int bank = host->bank; uint32_t err_idx[8]; -- cgit v1.2.3 From faee6c358b0f1906f0f653a9d9f8beb5ebef174f Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:47 +0100 Subject: mtd: nand: nuc900: create and use mtd_to_nuc900() Create and use mtd_to_nuc900() instead of direct container_of() calls. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nuc900_nand.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 8148cd689678..65908c0e6510 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -62,6 +62,11 @@ struct nuc900_nand { spinlock_t lock; }; +static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd) +{ + return container_of(mtd, struct nuc900_nand, mtd); +} + static const struct mtd_partition partitions[] = { { .name = "NAND FS 0", @@ -78,9 +83,7 @@ static const struct mtd_partition partitions[] = { static unsigned char nuc900_nand_read_byte(struct mtd_info *mtd) { unsigned char ret; - struct nuc900_nand *nand; - - nand = container_of(mtd, struct nuc900_nand, mtd); + struct nuc900_nand *nand = mtd_to_nuc900(mtd); ret = (unsigned char)read_data_reg(nand); @@ -91,9 +94,7 @@ static void nuc900_nand_read_buf(struct mtd_info *mtd, unsigned char *buf, int len) { int i; - struct nuc900_nand *nand; - - nand = container_of(mtd, struct nuc900_nand, mtd); + struct nuc900_nand *nand = mtd_to_nuc900(mtd); for (i = 0; i < len; i++) buf[i] = (unsigned char)read_data_reg(nand); @@ -103,9 +104,7 @@ static void nuc900_nand_write_buf(struct mtd_info *mtd, const unsigned char *buf, int len) { int i; - struct nuc900_nand *nand; - - nand = container_of(mtd, struct nuc900_nand, mtd); + struct nuc900_nand *nand = mtd_to_nuc900(mtd); for (i = 0; i < len; i++) write_data_reg(nand, buf[i]); @@ -124,11 +123,9 @@ static int nuc900_check_rb(struct nuc900_nand *nand) static int nuc900_nand_devready(struct mtd_info *mtd) { - struct nuc900_nand *nand; + struct nuc900_nand *nand = mtd_to_nuc900(mtd); int ready; - nand = container_of(mtd, struct nuc900_nand, mtd); - ready = (nuc900_check_rb(nand)) ? 1 : 0; return ready; } @@ -137,9 +134,7 @@ static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { register struct nand_chip *chip = mtd_to_nand(mtd); - struct nuc900_nand *nand; - - nand = container_of(mtd, struct nuc900_nand, mtd); + struct nuc900_nand *nand = mtd_to_nuc900(mtd); if (command == NAND_CMD_READOOB) { column += mtd->writesize; -- cgit v1.2.3 From 4578ea9a9989d19633b005b9bdc23729ceb58a1b Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:48 +0100 Subject: mtd: nand: omap2: create and use mtd_to_omap() Define and use mtd_to_omap() instead of container_of(); Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/omap2.c | 55 ++++++++++++++++++------------------------------ 1 file changed, 21 insertions(+), 34 deletions(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 944a74e7a513..1fb40db94bb5 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -177,6 +177,10 @@ struct omap_nand_info { struct device_node *of_node; }; +static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd) +{ + return container_of(mtd, struct omap_nand_info, mtd); +} /** * omap_prefetch_enable - configures and starts prefetch transfer * @cs: cs (chip select) number @@ -247,8 +251,7 @@ static int omap_prefetch_reset(int cs, struct omap_nand_info *info) */ static void omap_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); if (cmd != NAND_CMD_NONE) { if (ctrl & NAND_CLE) @@ -283,8 +286,7 @@ static void omap_read_buf8(struct mtd_info *mtd, u_char *buf, int len) */ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); u_char *p = (u_char *)buf; u32 status = 0; @@ -319,8 +321,7 @@ static void omap_read_buf16(struct mtd_info *mtd, u_char *buf, int len) */ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); u16 *p = (u16 *) buf; u32 status = 0; /* FIXME try bursts of writesw() or DMA ... */ @@ -344,8 +345,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len) */ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); uint32_t r_count = 0; int ret = 0; u32 *p = (u32 *)buf; @@ -392,8 +392,7 @@ static void omap_read_buf_pref(struct mtd_info *mtd, u_char *buf, int len) static void omap_write_buf_pref(struct mtd_info *mtd, const u_char *buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); uint32_t w_count = 0; int i = 0, ret = 0; u16 *p = (u16 *)buf; @@ -458,8 +457,7 @@ static void omap_nand_dma_callback(void *data) static inline int omap_nand_dma_transfer(struct mtd_info *mtd, void *addr, unsigned int len, int is_write) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); struct dma_async_tx_descriptor *tx; enum dma_data_direction dir = is_write ? DMA_TO_DEVICE : DMA_FROM_DEVICE; @@ -623,8 +621,7 @@ done: */ static void omap_read_buf_irq_pref(struct mtd_info *mtd, u_char *buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); int ret = 0; if (len <= mtd->oobsize) { @@ -671,8 +668,7 @@ out_copy: static void omap_write_buf_irq_pref(struct mtd_info *mtd, const u_char *buf, int len) { - struct omap_nand_info *info = container_of(mtd, - struct omap_nand_info, mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); int ret = 0; unsigned long tim, limit; u32 val; @@ -886,8 +882,7 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ static int omap_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); int blockCnt = 0, i = 0, ret = 0; int stat = 0; @@ -928,8 +923,7 @@ static int omap_correct_data(struct mtd_info *mtd, u_char *dat, static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); u32 val; val = readl(info->reg.gpmc_ecc_config); @@ -953,8 +947,7 @@ static int omap_calculate_ecc(struct mtd_info *mtd, const u_char *dat, */ static void omap_enable_hwecc(struct mtd_info *mtd, int mode) { - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); struct nand_chip *chip = mtd_to_nand(mtd); unsigned int dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0; u32 val; @@ -1002,8 +995,7 @@ static void omap_enable_hwecc(struct mtd_info *mtd, int mode) static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip) { struct nand_chip *this = mtd_to_nand(mtd); - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); unsigned long timeo = jiffies; int status, state = this->state; @@ -1031,8 +1023,7 @@ static int omap_wait(struct mtd_info *mtd, struct nand_chip *chip) static int omap_dev_ready(struct mtd_info *mtd) { unsigned int val = 0; - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); val = readl(info->reg.gpmc_status); @@ -1058,8 +1049,7 @@ static void __maybe_unused omap_enable_hwecc_bch(struct mtd_info *mtd, int mode) { unsigned int bch_type; unsigned int dev_width, nsectors; - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); enum omap_ecc ecc_opt = info->ecc_opt; struct nand_chip *chip = mtd_to_nand(mtd); u32 val, wr_mode; @@ -1162,8 +1152,7 @@ static u8 bch8_polynomial[] = {0xef, 0x51, 0x2e, 0x09, 0xed, 0x93, 0x9a, 0xc2, static int __maybe_unused omap_calculate_ecc_bch(struct mtd_info *mtd, const u_char *dat, u_char *ecc_calc) { - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); int eccbytes = info->nand.ecc.bytes; struct gpmc_nand_regs *gpmc_regs = &info->reg; u8 *ecc_code; @@ -1334,8 +1323,7 @@ static int erased_sector_bitflips(u_char *data, u_char *oob, static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data, u_char *read_ecc, u_char *calc_ecc) { - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); struct nand_ecc_ctrl *ecc = &info->nand.ecc; int eccsteps = info->nand.ecc.steps; int i , j, stat = 0; @@ -2057,8 +2045,7 @@ static int omap_nand_remove(struct platform_device *pdev) { struct mtd_info *mtd = platform_get_drvdata(pdev); struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, - mtd); + struct omap_nand_info *info = mtd_to_omap(mtd); if (nand_chip->ecc.priv) { nand_bch_free(nand_chip->ecc.priv); nand_chip->ecc.priv = NULL; -- cgit v1.2.3 From 187d6ada2a129b3829c81b3e4f4bdf660859bb11 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:49 +0100 Subject: mtd: nand: ams-delta: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance instead of allocating our own. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/ams-delta.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index b2b49c42920c..0f638c628a0d 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -183,19 +183,16 @@ static int ams_delta_init(struct platform_device *pdev) return -ENXIO; /* Allocate memory for MTD device structure and private data */ - ams_delta_mtd = kzalloc(sizeof(struct mtd_info) + - sizeof(struct nand_chip), GFP_KERNEL); - if (!ams_delta_mtd) { + this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL); + if (!this) { printk (KERN_WARNING "Unable to allocate E3 NAND MTD device structure.\n"); err = -ENOMEM; goto out; } + ams_delta_mtd = nand_to_mtd(this); ams_delta_mtd->owner = THIS_MODULE; - /* Get pointer to private data */ - this = (struct nand_chip *) (&ams_delta_mtd[1]); - /* Link the private data with the MTD structure */ ams_delta_mtd->priv = this; @@ -256,7 +253,7 @@ out_gpio: gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB); iounmap(io_base); out_free: - kfree(ams_delta_mtd); + kfree(this); out: return err; } @@ -276,7 +273,7 @@ static int ams_delta_cleanup(struct platform_device *pdev) iounmap(io_base); /* Free the MTD device structure */ - kfree(ams_delta_mtd); + kfree(mtd_to_nand(ams_delta_mtd)); return 0; } -- cgit v1.2.3 From ac01efebb1075a51a2803237159a440b71383117 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:50 +0100 Subject: mtd: nand: atmel: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/atmel_nand.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index edd191a6ee53..9ba2831277ea 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -116,7 +116,6 @@ static struct atmel_nfc nand_nfc; struct atmel_nand_host { struct nand_chip nand_chip; - struct mtd_info mtd; void __iomem *io_base; dma_addr_t io_phys; struct atmel_nand_data board; @@ -317,8 +316,10 @@ static int nfc_set_sram_bank(struct atmel_nand_host *host, unsigned int bank) return -EINVAL; if (bank) { + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); + /* Only for a 2k-page or lower flash, NFC can handle 2 banks */ - if (host->mtd.writesize > 2048) + if (mtd->writesize > 2048) return -EINVAL; nfc_writel(host->nfc->hsmc_regs, BANK, ATMEL_HSMC_NFC_BANK1); } else { @@ -1159,8 +1160,8 @@ static uint16_t *create_lookup_table(struct device *dev, int sector_size) static int atmel_pmecc_nand_init_params(struct platform_device *pdev, struct atmel_nand_host *host) { - struct mtd_info *mtd = &host->mtd; struct nand_chip *nand_chip = &host->nand_chip; + struct mtd_info *mtd = nand_to_mtd(nand_chip); struct resource *regs, *regs_pmerr, *regs_rom; uint16_t *galois_table; int cap, sector_size, err_no; @@ -1586,8 +1587,8 @@ static int atmel_of_init_port(struct atmel_nand_host *host, static int atmel_hw_nand_init_params(struct platform_device *pdev, struct atmel_nand_host *host) { - struct mtd_info *mtd = &host->mtd; struct nand_chip *nand_chip = &host->nand_chip; + struct mtd_info *mtd = nand_to_mtd(nand_chip); struct resource *regs; regs = platform_get_resource(pdev, IORESOURCE_MEM, 1); @@ -2112,8 +2113,8 @@ static int atmel_nand_probe(struct platform_device *pdev) } host->io_phys = (dma_addr_t)mem->start; - mtd = &host->mtd; nand_chip = &host->nand_chip; + mtd = nand_to_mtd(nand_chip); host->dev = &pdev->dev; if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) { nand_set_flash_node(nand_chip, pdev->dev.of_node); @@ -2283,7 +2284,7 @@ err_nand_ioremap: static int atmel_nand_remove(struct platform_device *pdev) { struct atmel_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); nand_release(mtd); -- cgit v1.2.3 From ff70f354a960f01afb2e0d4313bd664b88b1532f Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:51 +0100 Subject: mtd: nand: au1550nd: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/au1550nd.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 73fceb8743a2..280e5b61b815 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -23,7 +23,6 @@ struct au1550nd_ctx { - struct mtd_info info; struct nand_chip chip; int cs; @@ -197,8 +196,9 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) static void au1550_hwcontrol(struct mtd_info *mtd, int cmd) { - struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info); struct nand_chip *this = mtd_to_nand(mtd); + struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx, + chip); switch (cmd) { @@ -267,8 +267,9 @@ static void au1550_select_chip(struct mtd_info *mtd, int chip) */ static void au1550_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct au1550nd_ctx *ctx = container_of(mtd, struct au1550nd_ctx, info); struct nand_chip *this = mtd_to_nand(mtd); + struct au1550nd_ctx *ctx = container_of(this, struct au1550nd_ctx, + chip); int ce_override = 0, i; unsigned long flags = 0; @@ -405,6 +406,7 @@ static int au1550nd_probe(struct platform_device *pdev) struct au1550nd_platdata *pd; struct au1550nd_ctx *ctx; struct nand_chip *this; + struct mtd_info *mtd; struct resource *r; int ret, cs; @@ -438,8 +440,9 @@ static int au1550nd_probe(struct platform_device *pdev) } this = &ctx->chip; - ctx->info.priv = this; - ctx->info.dev.parent = &pdev->dev; + mtd = nand_to_mtd(this); + mtd->priv = this; + mtd->dev.parent = &pdev->dev; /* figure out which CS# r->start belongs to */ cs = find_nand_cs(r->start); @@ -467,13 +470,13 @@ static int au1550nd_probe(struct platform_device *pdev) this->write_buf = (pd->devwidth) ? au_write_buf16 : au_write_buf; this->read_buf = (pd->devwidth) ? au_read_buf16 : au_read_buf; - ret = nand_scan(&ctx->info, 1); + ret = nand_scan(mtd, 1); if (ret) { dev_err(&pdev->dev, "NAND scan failed with %d\n", ret); goto out3; } - mtd_device_register(&ctx->info, pd->parts, pd->num_parts); + mtd_device_register(mtd, pd->parts, pd->num_parts); platform_set_drvdata(pdev, ctx); @@ -493,7 +496,7 @@ static int au1550nd_remove(struct platform_device *pdev) struct au1550nd_ctx *ctx = platform_get_drvdata(pdev); struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - nand_release(&ctx->info); + nand_release(nand_to_mtd(&ctx->chip)); iounmap(ctx->base); release_mem_region(r->start, 0x1000); kfree(ctx); -- cgit v1.2.3 From 7085a3bee3a20e3be07a103dd1f1cd997375527a Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:53 +0100 Subject: mtd: nand: bf5xx: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/bf5xx_nand.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index d9da5edb011e..928d59920569 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -142,7 +142,6 @@ static struct nand_ecclayout bootrom_ecclayout = { struct bf5xx_nand_info { /* mtd info */ struct nand_hw_control controller; - struct mtd_info mtd; struct nand_chip chip; /* platform info */ @@ -160,7 +159,8 @@ struct bf5xx_nand_info { */ static struct bf5xx_nand_info *mtd_to_nand_info(struct mtd_info *mtd) { - return container_of(mtd, struct bf5xx_nand_info, mtd); + return container_of(mtd_to_nand(mtd), struct bf5xx_nand_info, + chip); } static struct bf5xx_nand_info *to_nand_info(struct platform_device *pdev) @@ -660,7 +660,7 @@ static int bf5xx_nand_hw_init(struct bf5xx_nand_info *info) */ static int bf5xx_nand_add_partition(struct bf5xx_nand_info *info) { - struct mtd_info *mtd = &info->mtd; + struct mtd_info *mtd = nand_to_mtd(&info->chip); struct mtd_partition *parts = info->platform->partitions; int nr = info->platform->nr_partitions; @@ -675,7 +675,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev) * and their partitions, then go through freeing the * resources used */ - nand_release(&info->mtd); + nand_release(nand_to_mtd(&info->chip)); peripheral_free_list(bfin_nfc_pin_req); bf5xx_nand_dma_remove(info); @@ -756,6 +756,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev) /* initialise chip data struct */ chip = &info->chip; + mtd = nand_to_mtd(&info->chip); if (plat->data_width) chip->options |= NAND_BUSWIDTH_16; @@ -772,7 +773,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev) chip->cmd_ctrl = bf5xx_nand_hwcontrol; chip->dev_ready = bf5xx_nand_devready; - chip->priv = &info->mtd; + chip->priv = mtd; chip->controller = &info->controller; chip->IO_ADDR_R = (void __iomem *) NFC_READ; @@ -781,7 +782,6 @@ static int bf5xx_nand_probe(struct platform_device *pdev) chip->chip_delay = 0; /* initialise mtd info data struct */ - mtd = &info->mtd; mtd->priv = chip; mtd->dev.parent = &pdev->dev; -- cgit v1.2.3 From f1c4c9992b1f088ab42ff9fa483ad9eed411e421 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:54 +0100 Subject: mtd: nand: brcm: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/brcmnand/brcmnand.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index dca816298aef..c05723b4d773 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -182,7 +182,6 @@ struct brcmnand_host { struct list_head node; struct nand_chip chip; - struct mtd_info mtd; struct platform_device *pdev; int cs; @@ -1078,7 +1077,7 @@ static int brcmnand_low_level_op(struct brcmnand_host *host, enum brcmnand_llop_type type, u32 data, bool last_op) { - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->chip); struct nand_chip *chip = &host->chip; struct brcmnand_controller *ctrl = host->ctrl; u32 tmp; @@ -1806,7 +1805,7 @@ static inline int get_blk_adr_bytes(u64 size, u32 writesize) static int brcmnand_setup_dev(struct brcmnand_host *host) { - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->chip); struct nand_chip *chip = &host->chip; struct brcmnand_controller *ctrl = host->ctrl; struct brcmnand_cfg *cfg = &host->hwcfg; @@ -1920,7 +1919,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn) return -ENXIO; } - mtd = &host->mtd; + mtd = nand_to_mtd(&host->chip); chip = &host->chip; nand_set_flash_node(chip, dn); @@ -2064,8 +2063,8 @@ static int brcmnand_resume(struct device *dev) } list_for_each_entry(host, &ctrl->host_list, node) { - struct mtd_info *mtd = &host->mtd; - struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_chip *chip = &host->chip; + struct mtd_info *mtd = nand_to_mtd(chip); brcmnand_save_restore_cs_config(host, 1); @@ -2296,7 +2295,7 @@ int brcmnand_remove(struct platform_device *pdev) struct brcmnand_host *host; list_for_each_entry(host, &ctrl->host_list, node) - nand_release(&host->mtd); + nand_release(nand_to_mtd(&host->chip)); clk_disable_unprepare(ctrl->clk); -- cgit v1.2.3 From e787dfd1be424e0546d05d6819c8ab9c222ec248 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:55 +0100 Subject: mtd: nand: cafe: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/cafe_nand.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 77c92f1b985f..7d6a14218bef 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -605,11 +605,11 @@ static int cafe_nand_probe(struct pci_dev *pdev, pci_set_master(pdev); - mtd = kzalloc(sizeof(*mtd) + sizeof(struct cafe_priv), GFP_KERNEL); - if (!mtd) + cafe = kzalloc(sizeof(*cafe), GFP_KERNEL); + if (!cafe) return -ENOMEM; - cafe = (void *)(&mtd[1]); + mtd = nand_to_mtd(&cafe->nand); mtd->dev.parent = &pdev->dev; mtd->priv = &cafe->nand; cafe->nand.priv = cafe; @@ -792,7 +792,7 @@ static int cafe_nand_probe(struct pci_dev *pdev, out_ior: pci_iounmap(pdev, cafe->mmio); out_free_mtd: - kfree(mtd); + kfree(cafe); out: return err; } @@ -813,7 +813,7 @@ static void cafe_nand_remove(struct pci_dev *pdev) 2112 + sizeof(struct nand_buffers) + mtd->writesize + mtd->oobsize, cafe->dmabuf, cafe->dmaaddr); - kfree(mtd); + kfree(cafe); } static const struct pci_device_id cafe_nand_tbl[] = { -- cgit v1.2.3 From 8cd65d1a63d272a20bcd51b459b0550da53a80e5 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:57 +0100 Subject: mtd: nand: cs553x: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/cs553x_nand.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index 8904d685b257..386ae832e03f 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -197,14 +197,13 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) } /* Allocate memory for MTD device structure and private data */ - new_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); - if (!new_mtd) { + this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL); + if (!this) { err = -ENOMEM; goto out; } - /* Get pointer to private data */ - this = (struct nand_chip *)(&new_mtd[1]); + new_mtd = nand_to_mtd(this); /* Link the private data with the MTD structure */ new_mtd->priv = this; @@ -257,7 +256,7 @@ out_free: out_ior: iounmap(this->IO_ADDR_R); out_mtd: - kfree(new_mtd); + kfree(this); out: return err; } @@ -337,19 +336,19 @@ static void __exit cs553x_cleanup(void) if (!mtd) continue; - this = mtd_to_nand(cs553x_mtd[i]); + this = mtd_to_nand(mtd); mmio_base = this->IO_ADDR_R; /* Release resources, unregister device */ - nand_release(cs553x_mtd[i]); - kfree(cs553x_mtd[i]->name); + nand_release(mtd); + kfree(mtd->name); cs553x_mtd[i] = NULL; /* unmap physical address */ iounmap(mmio_base); /* Free the MTD device structure */ - kfree(mtd); + kfree(this); } } -- cgit v1.2.3 From 2afd14f9270e4161a1f2528e75ff517c2d23d2f8 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:56 +0100 Subject: mtd: nand: cmx270: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon [Brian: dropped a defunct comment] Signed-off-by: Brian Norris --- drivers/mtd/nand/cmx270_nand.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 43bded66bc44..00fd0e933ffb 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -160,10 +160,8 @@ static int __init cmx270_init(void) gpio_direction_input(GPIO_NAND_RB); /* Allocate memory for MTD device structure and private data */ - cmx270_nand_mtd = kzalloc(sizeof(struct mtd_info) + - sizeof(struct nand_chip), - GFP_KERNEL); - if (!cmx270_nand_mtd) { + this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL); + if (!this) { ret = -ENOMEM; goto err_kzalloc; } @@ -175,8 +173,7 @@ static int __init cmx270_init(void) goto err_ioremap; } - /* Get pointer to private data */ - this = (struct nand_chip *)(&cmx270_nand_mtd[1]); + cmx270_nand_mtd = nand_to_mtd(this); /* Link the private data with the MTD structure */ cmx270_nand_mtd->owner = THIS_MODULE; @@ -216,7 +213,7 @@ static int __init cmx270_init(void) err_scan: iounmap(cmx270_nand_io); err_ioremap: - kfree(cmx270_nand_mtd); + kfree(this); err_kzalloc: gpio_free(GPIO_NAND_RB); err_gpio_request: @@ -240,8 +237,7 @@ static void __exit cmx270_cleanup(void) iounmap(cmx270_nand_io); - /* Free the MTD device structure */ - kfree (cmx270_nand_mtd); + kfree(mtd_to_nand(cmx270_nand_mtd)); } module_exit(cmx270_cleanup); -- cgit v1.2.3 From a5cfb4db89bc73e9d35b8a348133fa0b4b99d81e Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:58 +0100 Subject: mtd: nand: davinci: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/davinci_nand.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index b5978d58e1df..b1f69f982070 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -53,7 +53,6 @@ * outputs in a "wire-AND" configuration, with no per-chip signals. */ struct davinci_nand_info { - struct mtd_info mtd; struct nand_chip chip; struct nand_ecclayout ecclayout; @@ -80,8 +79,10 @@ struct davinci_nand_info { static DEFINE_SPINLOCK(davinci_nand_lock); static bool ecc4_busy; -#define to_davinci_nand(m) container_of(m, struct davinci_nand_info, mtd) - +static inline struct davinci_nand_info *to_davinci_nand(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct davinci_nand_info, chip); +} static inline unsigned int davinci_nand_readl(struct davinci_nand_info *info, int offset) @@ -636,6 +637,7 @@ static int nand_davinci_probe(struct platform_device *pdev) int ret; uint32_t val; nand_ecc_modes_t ecc_mode; + struct mtd_info *mtd; pdata = nand_davinci_get_pdata(pdev); if (IS_ERR(pdata)) @@ -682,8 +684,9 @@ static int nand_davinci_probe(struct platform_device *pdev) info->base = base; info->vaddr = vaddr; - info->mtd.priv = &info->chip; - info->mtd.dev.parent = &pdev->dev; + mtd = nand_to_mtd(&info->chip); + mtd->priv = &info->chip; + mtd->dev.parent = &pdev->dev; nand_set_flash_node(&info->chip, pdev->dev.of_node); info->chip.IO_ADDR_R = vaddr; @@ -785,7 +788,7 @@ static int nand_davinci_probe(struct platform_device *pdev) spin_unlock_irq(&davinci_nand_lock); /* Scan to find existence of the device(s) */ - ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1, NULL); + ret = nand_scan_ident(mtd, pdata->mask_chipsel ? 2 : 1, NULL); if (ret < 0) { dev_dbg(&pdev->dev, "no NAND chip(s) found\n"); goto err; @@ -797,9 +800,9 @@ static int nand_davinci_probe(struct platform_device *pdev) * usable: 10 bytes are needed, not 6. */ if (pdata->ecc_bits == 4) { - int chunks = info->mtd.writesize / 512; + int chunks = mtd->writesize / 512; - if (!chunks || info->mtd.oobsize < 16) { + if (!chunks || mtd->oobsize < 16) { dev_dbg(&pdev->dev, "too small\n"); ret = -EINVAL; goto err; @@ -811,8 +814,7 @@ static int nand_davinci_probe(struct platform_device *pdev) */ if (chunks == 1) { info->ecclayout = hwecc4_small; - info->ecclayout.oobfree[1].length = - info->mtd.oobsize - 16; + info->ecclayout.oobfree[1].length = mtd->oobsize - 16; goto syndrome_done; } if (chunks == 4) { @@ -833,15 +835,15 @@ syndrome_done: info->chip.ecc.layout = &info->ecclayout; } - ret = nand_scan_tail(&info->mtd); + ret = nand_scan_tail(mtd); if (ret < 0) goto err; if (pdata->parts) - ret = mtd_device_parse_register(&info->mtd, NULL, NULL, + ret = mtd_device_parse_register(mtd, NULL, NULL, pdata->parts, pdata->nr_parts); else - ret = mtd_device_register(&info->mtd, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret < 0) goto err; @@ -871,7 +873,7 @@ static int nand_davinci_remove(struct platform_device *pdev) ecc4_busy = false; spin_unlock_irq(&davinci_nand_lock); - nand_release(&info->mtd); + nand_release(nand_to_mtd(&info->chip)); clk_disable_unprepare(info->clk); -- cgit v1.2.3 From b0c423c7b630ecfff1e12f7bd7c3c7f0556bebb1 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:00 +0100 Subject: mtd: nand: diskonchip: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/diskonchip.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 5f7bcc86486e..fff7a4a69759 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1556,15 +1556,15 @@ static int __init doc_probe(unsigned long physadr) printk(KERN_NOTICE "DiskOnChip found at 0x%lx\n", physadr); - len = sizeof(struct mtd_info) + - sizeof(struct nand_chip) + sizeof(struct doc_priv) + (2 * sizeof(struct nand_bbt_descr)); - mtd = kzalloc(len, GFP_KERNEL); - if (!mtd) { + len = sizeof(struct nand_chip) + sizeof(struct doc_priv) + + (2 * sizeof(struct nand_bbt_descr)); + nand = kzalloc(len, GFP_KERNEL); + if (!nand) { ret = -ENOMEM; goto fail; } - nand = (struct nand_chip *) (mtd + 1); + mtd = nand_to_mtd(nand); doc = (struct doc_priv *) (nand + 1); nand->bbt_td = (struct nand_bbt_descr *) (doc + 1); nand->bbt_md = nand->bbt_td + 1; @@ -1615,7 +1615,7 @@ static int __init doc_probe(unsigned long physadr) haven't yet added it. This is handled without incident by mtd_device_unregister, as far as I can tell. */ nand_release(mtd); - kfree(mtd); + kfree(nand); goto fail; } @@ -1650,7 +1650,7 @@ static void release_nanddoc(void) nand_release(mtd); iounmap(doc->virtadr); release_mem_region(doc->physadr, DOC_IOREMAP_LEN); - kfree(mtd); + kfree(nand); } } -- cgit v1.2.3 From 5d07379681a3b4b6b1543388cb0c4b5148292351 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:01 +0100 Subject: mtd: nand: docg4: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/docg4.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index da93d7f5c821..cb6efadd712e 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -1305,14 +1305,14 @@ static int __init probe_docg4(struct platform_device *pdev) return -EIO; } - len = sizeof(struct mtd_info) + sizeof(struct nand_chip) + - sizeof(struct docg4_priv); - mtd = kzalloc(len, GFP_KERNEL); - if (mtd == NULL) { + len = sizeof(struct nand_chip) + sizeof(struct docg4_priv); + nand = kzalloc(len, GFP_KERNEL); + if (nand == NULL) { retval = -ENOMEM; - goto fail; + goto fail_unmap; } - nand = (struct nand_chip *) (mtd + 1); + + mtd = nand_to_mtd(nand); doc = (struct docg4_priv *) (nand + 1); mtd->priv = nand; nand->priv = doc; @@ -1354,16 +1354,17 @@ static int __init probe_docg4(struct platform_device *pdev) return 0; fail: - iounmap(virtadr); - if (mtd) { + if (nand) { /* re-declarations avoid compiler warning */ - struct nand_chip *nand = mtd_to_nand(mtd); struct docg4_priv *doc = nand->priv; nand_release(mtd); /* deletes partitions and mtd devices */ free_bch(doc->bch); - kfree(mtd); + kfree(nand); } +fail_unmap: + iounmap(virtadr); + return retval; } @@ -1372,7 +1373,7 @@ static int __exit cleanup_docg4(struct platform_device *pdev) struct docg4_priv *doc = platform_get_drvdata(pdev); nand_release(doc->mtd); free_bch(doc->bch); - kfree(doc->mtd); + kfree(mtd_to_nand(doc->mtd)); iounmap(doc->virtadr); return 0; } -- cgit v1.2.3 From 18ba50c3c0cc423019f8ed4b1c07e7a74203b289 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:02 +0100 Subject: mtd: nand: fsl_elbc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/fsl_elbc_nand.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index ad6d5daacb83..7bde76a02555 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -48,7 +48,6 @@ /* mtd information per set */ struct fsl_elbc_mtd { - struct mtd_info mtd; struct nand_chip chip; struct fsl_lbc_ctrl *ctrl; @@ -742,12 +741,13 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) struct fsl_lbc_regs __iomem *lbc = ctrl->regs; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; struct nand_chip *chip = &priv->chip; + struct mtd_info *mtd = nand_to_mtd(chip); dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank); /* Fill in fsl_elbc_mtd structure */ - priv->mtd.priv = chip; - priv->mtd.dev.parent = priv->dev; + mtd->priv = chip; + mtd->dev.parent = priv->dev; nand_set_flash_node(chip, priv->dev->of_node); /* set timeout to maximum */ @@ -798,9 +798,11 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) { struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; - nand_release(&priv->mtd); + struct mtd_info *mtd = nand_to_mtd(&priv->chip); - kfree(priv->mtd.name); + nand_release(mtd); + + kfree(mtd->name); if (priv->vbase) iounmap(priv->vbase); @@ -824,6 +826,7 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) int bank; struct device *dev; struct device_node *node = pdev->dev.of_node; + struct mtd_info *mtd; if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs) return -ENODEV; @@ -886,8 +889,9 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) goto err; } - priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); - if (!priv->mtd.name) { + mtd = nand_to_mtd(&priv->chip); + mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); + if (!nand_to_mtd(&priv->chip)->name) { ret = -ENOMEM; goto err; } @@ -896,21 +900,21 @@ static int fsl_elbc_nand_probe(struct platform_device *pdev) if (ret) goto err; - ret = nand_scan_ident(&priv->mtd, 1, NULL); + ret = nand_scan_ident(mtd, 1, NULL); if (ret) goto err; - ret = fsl_elbc_chip_init_tail(&priv->mtd); + ret = fsl_elbc_chip_init_tail(mtd); if (ret) goto err; - ret = nand_scan_tail(&priv->mtd); + ret = nand_scan_tail(mtd); if (ret) goto err; /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - mtd_device_parse_register(&priv->mtd, part_probe_types, NULL, + mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0); printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n", -- cgit v1.2.3 From 5e9fb93dd3782eba5e6f282e01f4fc577f2d653a Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:03 +0100 Subject: mtd: nand: fsl_ifc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/fsl_ifc_nand.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 3136842e88d5..3f5654f52cee 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -40,7 +40,6 @@ struct fsl_ifc_ctrl; /* mtd information per set */ struct fsl_ifc_mtd { - struct mtd_info mtd; struct nand_chip chip; struct fsl_ifc_ctrl *ctrl; @@ -877,12 +876,13 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; struct nand_chip *chip = &priv->chip; + struct mtd_info *mtd = nand_to_mtd(&priv->chip); struct nand_ecclayout *layout; u32 csor; /* Fill in fsl_ifc_mtd structure */ - priv->mtd.priv = chip; - priv->mtd.dev.parent = priv->dev; + mtd->priv = chip; + mtd->dev.parent = priv->dev; nand_set_flash_node(chip, priv->dev->of_node); /* fill in nand_chip structure */ @@ -994,9 +994,11 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv) { - nand_release(&priv->mtd); + struct mtd_info *mtd = nand_to_mtd(&priv->chip); - kfree(priv->mtd.name); + nand_release(mtd); + + kfree(mtd->name); if (priv->vbase) iounmap(priv->vbase); @@ -1031,6 +1033,7 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) int ret; int bank; struct device_node *node = dev->dev.of_node; + struct mtd_info *mtd; if (!fsl_ifc_ctrl_dev || !fsl_ifc_ctrl_dev->regs) return -ENODEV; @@ -1103,8 +1106,10 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) IFC_NAND_EVTER_INTR_FTOERIR_EN | IFC_NAND_EVTER_INTR_WPERIR_EN, &ifc->ifc_nand.nand_evter_intr_en); - priv->mtd.name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); - if (!priv->mtd.name) { + + mtd = nand_to_mtd(&priv->chip); + mtd->name = kasprintf(GFP_KERNEL, "%llx.flash", (u64)res.start); + if (!mtd->name) { ret = -ENOMEM; goto err; } @@ -1113,22 +1118,21 @@ static int fsl_ifc_nand_probe(struct platform_device *dev) if (ret) goto err; - ret = nand_scan_ident(&priv->mtd, 1, NULL); + ret = nand_scan_ident(mtd, 1, NULL); if (ret) goto err; - ret = fsl_ifc_chip_init_tail(&priv->mtd); + ret = fsl_ifc_chip_init_tail(mtd); if (ret) goto err; - ret = nand_scan_tail(&priv->mtd); + ret = nand_scan_tail(mtd); if (ret) goto err; /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - mtd_device_parse_register(&priv->mtd, part_probe_types, NULL, - NULL, 0); + mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0); dev_info(priv->dev, "IFC NAND device at 0x%llx, bank %d\n", (unsigned long long)res.start, priv->bank); -- cgit v1.2.3 From 478d51f0213b9a4b0e605481aa3c14f4a084df4f Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:04 +0100 Subject: mtd: nand: fsl_upm: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/fsl_upm.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 68ec128e822c..0379adc2d90e 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -31,7 +31,6 @@ struct fsl_upm_nand { struct device *dev; - struct mtd_info mtd; struct nand_chip chip; int last_ctrl; struct mtd_partition *parts; @@ -49,7 +48,8 @@ struct fsl_upm_nand { static inline struct fsl_upm_nand *to_fsl_upm_nand(struct mtd_info *mtdinfo) { - return container_of(mtdinfo, struct fsl_upm_nand, mtd); + return container_of(mtd_to_nand(mtdinfo), struct fsl_upm_nand, + chip); } static int fun_chip_ready(struct mtd_info *mtd) @@ -66,9 +66,10 @@ static int fun_chip_ready(struct mtd_info *mtd) static void fun_wait_rnb(struct fsl_upm_nand *fun) { if (fun->rnb_gpio[fun->mchip_number] >= 0) { + struct mtd_info *mtd = nand_to_mtd(&fun->chip); int cnt = 1000000; - while (--cnt && !fun_chip_ready(&fun->mtd)) + while (--cnt && !fun_chip_ready(mtd)) cpu_relax(); if (!cnt) dev_err(fun->dev, "tired waiting for RNB\n"); @@ -157,6 +158,7 @@ static int fun_chip_init(struct fsl_upm_nand *fun, const struct device_node *upm_np, const struct resource *io_res) { + struct mtd_info *mtd = nand_to_mtd(&fun->chip); int ret; struct device_node *flash_np; @@ -174,30 +176,30 @@ static int fun_chip_init(struct fsl_upm_nand *fun, if (fun->rnb_gpio[0] >= 0) fun->chip.dev_ready = fun_chip_ready; - fun->mtd.priv = &fun->chip; - fun->mtd.dev.parent = fun->dev; + mtd->priv = &fun->chip; + mtd->dev.parent = fun->dev; flash_np = of_get_next_child(upm_np, NULL); if (!flash_np) return -ENODEV; nand_set_flash_node(&fun->chip, flash_np); - fun->mtd.name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start, - flash_np->name); - if (!fun->mtd.name) { + mtd->name = kasprintf(GFP_KERNEL, "0x%llx.%s", (u64)io_res->start, + flash_np->name); + if (!mtd->name) { ret = -ENOMEM; goto err; } - ret = nand_scan(&fun->mtd, fun->mchip_count); + ret = nand_scan(mtd, fun->mchip_count); if (ret) goto err; - ret = mtd_device_register(&fun->mtd, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); err: of_node_put(flash_np); if (ret) - kfree(fun->mtd.name); + kfree(mtd->name); return ret; } @@ -321,10 +323,11 @@ err1: static int fun_remove(struct platform_device *ofdev) { struct fsl_upm_nand *fun = dev_get_drvdata(&ofdev->dev); + struct mtd_info *mtd = nand_to_mtd(&fun->chip); int i; - nand_release(&fun->mtd); - kfree(fun->mtd.name); + nand_release(mtd); + kfree(mtd->name); for (i = 0; i < fun->mchip_count; i++) { if (fun->rnb_gpio[i] < 0) -- cgit v1.2.3 From bdf3a5550152606c7541094e14f892c2f4825856 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:05 +0100 Subject: mtd: nand: fsmc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/fsmc_nand.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 499fc5925c23..4c68e7a39b50 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -299,7 +299,6 @@ static struct fsmc_eccplace fsmc_ecc4_sp_place = { */ struct fsmc_nand_data { u32 pid; - struct mtd_info mtd; struct nand_chip nand; struct mtd_partition *partitions; unsigned int nr_partitions; @@ -328,7 +327,7 @@ struct fsmc_nand_data { static inline struct fsmc_nand_data *mtd_to_fsmc(struct mtd_info *mtd) { - return container_of(mtd, struct fsmc_nand_data, mtd); + return container_of(mtd_to_nand(mtd), struct fsmc_nand_data, nand); } /* Assert CS signal based on chipnr */ @@ -1008,13 +1007,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) init_completion(&host->dma_access_complete); /* Link all private pointers */ - mtd = &host->mtd; + mtd = nand_to_mtd(&host->nand); nand = &host->nand; mtd->priv = nand; nand->priv = host; nand_set_flash_node(nand, np); - host->mtd.dev.parent = &pdev->dev; + mtd->dev.parent = &pdev->dev; nand->IO_ADDR_R = host->data_va; nand->IO_ADDR_W = host->data_va; nand->cmd_ctrl = fsmc_cmd_ctrl; @@ -1077,14 +1076,14 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) /* * Scan to find existence of the device */ - if (nand_scan_ident(&host->mtd, 1, NULL)) { + if (nand_scan_ident(mtd, 1, NULL)) { ret = -ENXIO; dev_err(&pdev->dev, "No NAND Device found!\n"); goto err_scan_ident; } if (AMBA_REV_BITS(host->pid) >= 8) { - switch (host->mtd.oobsize) { + switch (mtd->oobsize) { case 16: nand->ecc.layout = &fsmc_ecc4_16_layout; host->ecc_place = &fsmc_ecc4_sp_place; @@ -1135,7 +1134,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) * generated later in nand_bch_init() later. */ if (nand->ecc.mode != NAND_ECC_SOFT_BCH) { - switch (host->mtd.oobsize) { + switch (mtd->oobsize) { case 16: nand->ecc.layout = &fsmc_ecc1_16_layout; break; @@ -1156,7 +1155,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) } /* Second stage of scan to fill MTD data-structures */ - if (nand_scan_tail(&host->mtd)) { + if (nand_scan_tail(mtd)) { ret = -ENXIO; goto err_probe; } @@ -1171,9 +1170,8 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) /* * Check for partition info passed */ - host->mtd.name = "nand"; - ret = mtd_device_register(&host->mtd, host->partitions, - host->nr_partitions); + mtd->name = "nand"; + ret = mtd_device_register(mtd, host->partitions, host->nr_partitions); if (ret) goto err_probe; @@ -1203,7 +1201,7 @@ static int fsmc_nand_remove(struct platform_device *pdev) struct fsmc_nand_data *host = platform_get_drvdata(pdev); if (host) { - nand_release(&host->mtd); + nand_release(nand_to_mtd(&host->nand)); if (host->mode == USE_DMA_ACCESS) { dma_release_channel(host->write_dma_chan); -- cgit v1.2.3 From dc2948ca66e4133ccac1948dd7631072e84e996d Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:06 +0100 Subject: mtd: nand: gpio: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/gpio.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index d57a07a597be..99dd74c11038 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -35,12 +35,14 @@ struct gpiomtd { void __iomem *io_sync; - struct mtd_info mtd_info; struct nand_chip nand_chip; struct gpio_nand_platdata plat; }; -#define gpio_nand_getpriv(x) container_of(x, struct gpiomtd, mtd_info) +static inline struct gpiomtd *gpio_nand_getpriv(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct gpiomtd, nand_chip); +} #ifdef CONFIG_ARM @@ -195,7 +197,7 @@ static int gpio_nand_remove(struct platform_device *pdev) { struct gpiomtd *gpiomtd = platform_get_drvdata(pdev); - nand_release(&gpiomtd->mtd_info); + nand_release(nand_to_mtd(&gpiomtd->nand_chip)); if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) gpio_set_value(gpiomtd->plat.gpio_nwp, 0); @@ -208,6 +210,7 @@ static int gpio_nand_probe(struct platform_device *pdev) { struct gpiomtd *gpiomtd; struct nand_chip *chip; + struct mtd_info *mtd; struct resource *res; int ret = 0; @@ -274,24 +277,24 @@ static int gpio_nand_probe(struct platform_device *pdev) chip->chip_delay = gpiomtd->plat.chip_delay; chip->cmd_ctrl = gpio_nand_cmd_ctrl; - gpiomtd->mtd_info.priv = chip; - gpiomtd->mtd_info.dev.parent = &pdev->dev; + mtd = nand_to_mtd(chip); + mtd->priv = chip; + mtd->dev.parent = &pdev->dev; platform_set_drvdata(pdev, gpiomtd); if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) gpio_direction_output(gpiomtd->plat.gpio_nwp, 1); - if (nand_scan(&gpiomtd->mtd_info, 1)) { + if (nand_scan(mtd, 1)) { ret = -ENXIO; goto err_wp; } if (gpiomtd->plat.adjust_parts) - gpiomtd->plat.adjust_parts(&gpiomtd->plat, - gpiomtd->mtd_info.size); + gpiomtd->plat.adjust_parts(&gpiomtd->plat, mtd->size); - ret = mtd_device_register(&gpiomtd->mtd_info, gpiomtd->plat.parts, + ret = mtd_device_register(mtd, gpiomtd->plat.parts, gpiomtd->plat.num_parts); if (!ret) return 0; -- cgit v1.2.3 From 2a690b25f6c770e70cc00357846f39327531c464 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:07 +0100 Subject: mtd: nand: gpmi: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 2 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 23 +++++++++++------------ drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 1 - 3 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c index 43fa16b5f510..0f68a99fc4ad 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -919,7 +919,7 @@ static int enable_edo_mode(struct gpmi_nand_data *this, int mode) { struct resources *r = &this->resources; struct nand_chip *nand = &this->nand; - struct mtd_info *mtd = &this->mtd; + struct mtd_info *mtd = nand_to_mtd(nand); uint8_t *feature; unsigned long rate; int ret; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 802adb04bb97..38b07c7aa1e4 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -107,7 +107,7 @@ static irqreturn_t bch_irq(int irq, void *cookie) static inline int get_ecc_strength(struct gpmi_nand_data *this) { struct bch_geometry *geo = &this->bch_geometry; - struct mtd_info *mtd = &this->mtd; + struct mtd_info *mtd = nand_to_mtd(&this->nand); int ecc_strength; ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8) @@ -139,8 +139,8 @@ static inline bool gpmi_check_ecc(struct gpmi_nand_data *this) static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this) { struct bch_geometry *geo = &this->bch_geometry; - struct mtd_info *mtd = &this->mtd; - struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_chip *chip = &this->nand; + struct mtd_info *mtd = nand_to_mtd(chip); struct nand_oobfree *of = gpmi_hw_ecclayout.oobfree; unsigned int block_mark_bit_offset; @@ -257,7 +257,7 @@ static bool set_geometry_by_ecc_info(struct gpmi_nand_data *this) static int legacy_set_geometry(struct gpmi_nand_data *this) { struct bch_geometry *geo = &this->bch_geometry; - struct mtd_info *mtd = &this->mtd; + struct mtd_info *mtd = nand_to_mtd(&this->nand); unsigned int metadata_size; unsigned int status_size; unsigned int block_mark_bit_offset; @@ -804,7 +804,7 @@ static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this) { struct bch_geometry *geo = &this->bch_geometry; struct device *dev = this->dev; - struct mtd_info *mtd = &this->mtd; + struct mtd_info *mtd = nand_to_mtd(&this->nand); /* [1] Allocate a command buffer. PAGE_SIZE is enough. */ this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA | GFP_KERNEL); @@ -1600,8 +1600,8 @@ static int mx23_check_transcription_stamp(struct gpmi_nand_data *this) { struct boot_rom_geometry *rom_geo = &this->rom_geometry; struct device *dev = this->dev; - struct mtd_info *mtd = &this->mtd; struct nand_chip *chip = &this->nand; + struct mtd_info *mtd = nand_to_mtd(chip); unsigned int search_area_size_in_strides; unsigned int stride; unsigned int page; @@ -1655,8 +1655,8 @@ static int mx23_write_transcription_stamp(struct gpmi_nand_data *this) { struct device *dev = this->dev; struct boot_rom_geometry *rom_geo = &this->rom_geometry; - struct mtd_info *mtd = &this->mtd; struct nand_chip *chip = &this->nand; + struct mtd_info *mtd = nand_to_mtd(chip); unsigned int block_size_in_pages; unsigned int search_area_size_in_strides; unsigned int search_area_size_in_pages; @@ -1735,7 +1735,7 @@ static int mx23_boot_init(struct gpmi_nand_data *this) { struct device *dev = this->dev; struct nand_chip *chip = &this->nand; - struct mtd_info *mtd = &this->mtd; + struct mtd_info *mtd = nand_to_mtd(chip); unsigned int block_count; unsigned int block; int chipnr; @@ -1831,14 +1831,13 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this) static void gpmi_nand_exit(struct gpmi_nand_data *this) { - nand_release(&this->mtd); + nand_release(nand_to_mtd(&this->nand)); gpmi_free_dma_buffer(this); } static int gpmi_init_last(struct gpmi_nand_data *this) { - struct mtd_info *mtd = &this->mtd; - struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_chip *chip = &this->nand; struct nand_ecc_ctrl *ecc = &chip->ecc; struct bch_geometry *bch_geo = &this->bch_geometry; int ret; @@ -1886,8 +1885,8 @@ static int gpmi_init_last(struct gpmi_nand_data *this) static int gpmi_nand_init(struct gpmi_nand_data *this) { - struct mtd_info *mtd = &this->mtd; struct nand_chip *chip = &this->nand; + struct mtd_info *mtd = nand_to_mtd(chip); int ret; /* init current chip */ diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h index 544062f65020..4e49a1f5fa27 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -160,7 +160,6 @@ struct gpmi_nand_data { /* MTD / NAND */ struct nand_chip nand; - struct mtd_info mtd; /* General-use Variables */ int current_chip; -- cgit v1.2.3 From fa100163d38ef8607652681fbe6f75491032610e Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:08 +0100 Subject: mtd: nand: hisi504: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/hisi504_nand.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index 6358d4ae7b75..6e6e482c02a3 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -134,7 +134,6 @@ struct hinfc_host { struct nand_chip chip; - struct mtd_info mtd; struct device *dev; void __iomem *iobase; void __iomem *mmio; @@ -189,8 +188,8 @@ static void wait_controller_finished(struct hinfc_host *host) static void hisi_nfc_dma_transfer(struct hinfc_host *host, int todev) { - struct mtd_info *mtd = &host->mtd; - struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_chip *chip = &host->chip; + struct mtd_info *mtd = nand_to_mtd(chip); unsigned long val; int ret; @@ -262,7 +261,7 @@ static int hisi_nfc_send_cmd_pageprog(struct hinfc_host *host) static int hisi_nfc_send_cmd_readstart(struct hinfc_host *host) { - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->chip); if ((host->addr_value[0] == host->cache_addr_value[0]) && (host->addr_value[1] == host->cache_addr_value[1])) @@ -643,7 +642,7 @@ static int hisi_nfc_ecc_probe(struct hinfc_host *host) int size, strength, ecc_bits; struct device *dev = host->dev; struct nand_chip *chip = &host->chip; - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(chip); struct device_node *np = host->dev->of_node; size = of_get_nand_ecc_step_size(np); @@ -712,7 +711,7 @@ static int hisi_nfc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, host); chip = &host->chip; - mtd = &host->mtd; + mtd = nand_to_mtd(chip); irq = platform_get_irq(pdev, 0); if (irq < 0) { @@ -822,7 +821,7 @@ err_res: static int hisi_nfc_remove(struct platform_device *pdev) { struct hinfc_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->chip); nand_release(mtd); -- cgit v1.2.3 From d25cc7abb164cea73894934d6b699c465b0bedaf Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:09 +0100 Subject: mtd: nand: jz4740: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/jz4740_nand.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 5a06fba9bd1a..03239a5a04cd 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -59,7 +59,6 @@ #define JZ_NAND_MEM_ADDR_OFFSET 0x10000 struct jz_nand { - struct mtd_info mtd; struct nand_chip chip; void __iomem *base; struct resource *mem; @@ -76,7 +75,7 @@ struct jz_nand { static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd) { - return container_of(mtd, struct jz_nand, mtd); + return container_of(mtd_to_nand(mtd), struct jz_nand, chip); } static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr) @@ -334,8 +333,8 @@ static int jz_nand_detect_bank(struct platform_device *pdev, char gpio_name[9]; char res_name[6]; uint32_t ctrl; - struct mtd_info *mtd = &nand->mtd; struct nand_chip *chip = &nand->chip; + struct mtd_info *mtd = nand_to_mtd(chip); /* Request GPIO port. */ gpio = JZ_GPIO_MEM_CS0 + bank - 1; @@ -432,8 +431,8 @@ static int jz_nand_probe(struct platform_device *pdev) goto err_iounmap_mmio; } - mtd = &nand->mtd; chip = &nand->chip; + mtd = nand_to_mtd(chip); mtd->priv = chip; mtd->dev.parent = &pdev->dev; mtd->name = "jz4740-nand"; @@ -543,7 +542,7 @@ static int jz_nand_remove(struct platform_device *pdev) struct jz_nand *nand = platform_get_drvdata(pdev); size_t i; - nand_release(&nand->mtd); + nand_release(nand_to_mtd(&nand->chip)); /* Deassert and disable all chips */ writel(0, nand->base + JZ_REG_NAND_CTRL); -- cgit v1.2.3 From 0faf8c39c0580ecc0edfc2f5c932972ee3424935 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:10 +0100 Subject: mtd: nand: lpc32xx: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/lpc32xx_mlc.c | 7 +++---- drivers/mtd/nand/lpc32xx_slc.c | 7 +++---- 2 files changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 373885659fe0..3400b3f99d30 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -173,7 +173,6 @@ struct lpc32xx_nand_host { struct nand_chip nand_chip; struct lpc32xx_mlc_platform_data *pdata; struct clk *clk; - struct mtd_info mtd; void __iomem *io_base; int irq; struct lpc32xx_nand_cfg_mlc *ncfg; @@ -566,7 +565,7 @@ static void lpc32xx_ecc_enable(struct mtd_info *mtd, int mode) static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host) { - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); dma_cap_mask_t mask; if (!host->pdata || !host->pdata->dma_filter) { @@ -660,8 +659,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) host->io_base_phy = rc->start; - mtd = &host->mtd; nand_chip = &host->nand_chip; + mtd = nand_to_mtd(nand_chip); if (pdev->dev.of_node) host->ncfg = lpc32xx_parse_dt(&pdev->dev); if (!host->ncfg) { @@ -814,7 +813,7 @@ err_exit1: static int lpc32xx_nand_remove(struct platform_device *pdev) { struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); nand_release(mtd); free_irq(host->irq, host); diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index fcd9facad05e..61b2961297df 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -204,7 +204,6 @@ struct lpc32xx_nand_host { struct nand_chip nand_chip; struct lpc32xx_slc_platform_data *pdata; struct clk *clk; - struct mtd_info mtd; void __iomem *io_base; struct lpc32xx_nand_cfg_slc *ncfg; @@ -703,7 +702,7 @@ static int lpc32xx_nand_write_page_raw_syndrome(struct mtd_info *mtd, static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host) { - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); dma_cap_mask_t mask; if (!host->pdata || !host->pdata->dma_filter) { @@ -799,8 +798,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) host->pdata = dev_get_platdata(&pdev->dev); - mtd = &host->mtd; chip = &host->nand_chip; + mtd = nand_to_mtd(chip); chip->priv = host; nand_set_flash_node(chip, pdev->dev.of_node); mtd->priv = chip; @@ -932,7 +931,7 @@ static int lpc32xx_nand_remove(struct platform_device *pdev) { uint32_t tmp; struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); nand_release(mtd); dma_release_channel(host->dma_chan); -- cgit v1.2.3 From 5a9f23ffb6da3a6141ab58aeeb7470e0ec69f2ff Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:11 +0100 Subject: mtd: nand: mpc5121: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/mpc5121_nfc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 642c486ea3c2..8b4cd82f019e 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -118,7 +118,6 @@ #define NFC_TIMEOUT (HZ / 10) /* 1/10 s */ struct mpc5121_nfc_prv { - struct mtd_info mtd; struct nand_chip chip; int irq; void __iomem *regs; @@ -654,8 +653,8 @@ static int mpc5121_nfc_probe(struct platform_device *op) if (!prv) return -ENOMEM; - mtd = &prv->mtd; chip = &prv->chip; + mtd = nand_to_mtd(chip); mtd->priv = chip; mtd->dev.parent = dev; -- cgit v1.2.3 From a008deb1655ca7301dd388237aa60f867d9f784c Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:12 +0100 Subject: mtd: nand: mxc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/mxc_nand.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index b291258bfe7b..9dd71af363c3 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -173,7 +173,6 @@ struct mxc_nand_devtype_data { }; struct mxc_nand_host { - struct mtd_info mtd; struct nand_chip nand; struct device *dev; @@ -1514,7 +1513,7 @@ static int mxcnd_probe(struct platform_device *pdev) host->dev = &pdev->dev; /* structures must be linked */ this = &host->nand; - mtd = &host->mtd; + mtd = nand_to_mtd(this); mtd->priv = this; mtd->dev.parent = &pdev->dev; mtd->name = DRIVER_NAME; @@ -1702,7 +1701,7 @@ static int mxcnd_remove(struct platform_device *pdev) { struct mxc_nand_host *host = platform_get_drvdata(pdev); - nand_release(&host->mtd); + nand_release(nand_to_mtd(&host->nand)); if (host->clk_act) clk_disable_unprepare(host->clk); -- cgit v1.2.3 From ed10f1655832de0c7e26d4c76ef1bad3bbf87b51 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:13 +0100 Subject: mtd: nand: nandsim: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nandsim.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index eb2a567f41d9..442eeaf09eba 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -2236,13 +2236,13 @@ static int __init ns_init_module(void) } /* Allocate and initialize mtd_info, nand_chip and nandsim structures */ - nsmtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip) - + sizeof(struct nandsim), GFP_KERNEL); - if (!nsmtd) { + chip = kzalloc(sizeof(struct nand_chip) + sizeof(struct nandsim), + GFP_KERNEL); + if (!chip) { NS_ERR("unable to allocate core structures.\n"); return -ENOMEM; } - chip = (struct nand_chip *)(nsmtd + 1); + nsmtd = nand_to_mtd(chip); nsmtd->priv = (void *)chip; nand = (struct nandsim *)(chip + 1); chip->priv = (void *)nand; @@ -2392,7 +2392,7 @@ err_exit: for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i) kfree(nand->partitions[i].name); error: - kfree(nsmtd); + kfree(chip); free_lists(); return retval; @@ -2413,7 +2413,7 @@ static void __exit ns_cleanup_module(void) nand_release(nsmtd); /* Unregister driver */ for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) kfree(ns->partitions[i].name); - kfree(nsmtd); /* Free other structures */ + kfree(mtd_to_nand(nsmtd)); /* Free other structures */ free_lists(); } -- cgit v1.2.3 From ca921b537aea1731d0c14805452662eb5ac37fcb Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:14 +0100 Subject: mtd: nand: ndfc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/ndfc.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index d8a23b052d50..3a7168e52007 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -37,7 +37,6 @@ struct ndfc_controller { struct platform_device *ofdev; void __iomem *ndfcbase; - struct mtd_info mtd; struct nand_chip chip; int chip_select; struct nand_hw_control ndfc_control; @@ -147,6 +146,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, { struct device_node *flash_np; struct nand_chip *chip = &ndfc->chip; + struct mtd_info *mtd = nand_to_mtd(chip); int ret; chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA; @@ -167,31 +167,32 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, chip->ecc.strength = 1; chip->priv = ndfc; - ndfc->mtd.priv = chip; - ndfc->mtd.dev.parent = &ndfc->ofdev->dev; + mtd->priv = chip; + mtd->dev.parent = &ndfc->ofdev->dev; flash_np = of_get_next_child(node, NULL); if (!flash_np) return -ENODEV; nand_set_flash_node(chip, flash_np); - ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s", - dev_name(&ndfc->ofdev->dev), flash_np->name); - if (!ndfc->mtd.name) { + ppdata.of_node = flash_np; + mtd->name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev), + flash_np->name); + if (!mtd->name) { ret = -ENOMEM; goto err; } - ret = nand_scan(&ndfc->mtd, 1); + ret = nand_scan(mtd, 1); if (ret) goto err; - ret = mtd_device_register(&ndfc->mtd, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); err: of_node_put(flash_np); if (ret) - kfree(ndfc->mtd.name); + kfree(mtd->name); return ret; } @@ -258,9 +259,10 @@ static int ndfc_probe(struct platform_device *ofdev) static int ndfc_remove(struct platform_device *ofdev) { struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev); + struct mtd_info *mtd = nand_to_mtd(&ndfc->chip); - nand_release(&ndfc->mtd); - kfree(ndfc->mtd.name); + nand_release(mtd); + kfree(mtd->name); return 0; } -- cgit v1.2.3 From 396a9c437bc0e884de58f58b4b4d7cce52181528 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:15 +0100 Subject: mtd: nand: nuc900: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nuc900_nand.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 65908c0e6510..4dad170f6545 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -55,7 +55,6 @@ __raw_writel((val), (dev)->reg + REG_SMADDR) struct nuc900_nand { - struct mtd_info mtd; struct nand_chip chip; void __iomem *reg; struct clk *clk; @@ -64,7 +63,7 @@ struct nuc900_nand { static inline struct nuc900_nand *mtd_to_nuc900(struct mtd_info *mtd) { - return container_of(mtd, struct nuc900_nand, mtd); + return container_of(mtd_to_nand(mtd), struct nuc900_nand, chip); } static const struct mtd_partition partitions[] = { @@ -236,6 +235,7 @@ static int nuc900_nand_probe(struct platform_device *pdev) { struct nuc900_nand *nuc900_nand; struct nand_chip *chip; + struct mtd_info *mtd; struct resource *res; nuc900_nand = devm_kzalloc(&pdev->dev, sizeof(struct nuc900_nand), @@ -243,9 +243,10 @@ static int nuc900_nand_probe(struct platform_device *pdev) if (!nuc900_nand) return -ENOMEM; chip = &(nuc900_nand->chip); + mtd = nand_to_mtd(chip); - nuc900_nand->mtd.priv = chip; - nuc900_nand->mtd.dev.parent = &pdev->dev; + mtd->priv = chip; + mtd->dev.parent = &pdev->dev; spin_lock_init(&nuc900_nand->lock); nuc900_nand->clk = devm_clk_get(&pdev->dev, NULL); @@ -269,11 +270,10 @@ static int nuc900_nand_probe(struct platform_device *pdev) nuc900_nand_enable(nuc900_nand); - if (nand_scan(&(nuc900_nand->mtd), 1)) + if (nand_scan(mtd, 1)) return -ENXIO; - mtd_device_register(&(nuc900_nand->mtd), partitions, - ARRAY_SIZE(partitions)); + mtd_device_register(mtd, partitions, ARRAY_SIZE(partitions)); platform_set_drvdata(pdev, nuc900_nand); @@ -284,7 +284,7 @@ static int nuc900_nand_remove(struct platform_device *pdev) { struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev); - nand_release(&nuc900_nand->mtd); + nand_release(nand_to_mtd(&nuc900_nand->chip)); clk_disable(nuc900_nand->clk); return 0; -- cgit v1.2.3 From 432420c0fc8d077c30900a4e90779cd7dca021da Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:16 +0100 Subject: mtd: nand: omap2: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/omap2.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 1fb40db94bb5..f9d0b58323e3 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -152,7 +152,6 @@ static struct nand_hw_control omap_gpmc_controller = { struct omap_nand_info { struct omap_nand_platform_data *pdata; - struct mtd_info mtd; struct nand_chip nand; struct platform_device *pdev; @@ -179,8 +178,9 @@ struct omap_nand_info { static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd) { - return container_of(mtd, struct omap_nand_info, mtd); + return container_of(mtd_to_nand(mtd), struct omap_nand_info, nand); } + /** * omap_prefetch_enable - configures and starts prefetch transfer * @cs: cs (chip select) number @@ -1670,10 +1670,10 @@ static int omap_nand_probe(struct platform_device *pdev) info->reg = pdata->reg; info->of_node = pdata->of_node; info->ecc_opt = pdata->ecc_opt; - mtd = &info->mtd; + nand_chip = &info->nand; + mtd = nand_to_mtd(nand_chip); mtd->priv = &info->nand; mtd->dev.parent = &pdev->dev; - nand_chip = &info->nand; nand_chip->ecc.priv = NULL; nand_set_flash_node(nand_chip, pdata->of_node); @@ -1897,7 +1897,7 @@ static int omap_nand_probe(struct platform_device *pdev) ecclayout->eccpos[ecclayout->eccbytes - 1] + 1; err = elm_config(info->elm_dev, BCH4_ECC, - info->mtd.writesize / nand_chip->ecc.size, + mtd->writesize / nand_chip->ecc.size, nand_chip->ecc.size, nand_chip->ecc.bytes); if (err < 0) goto return_error; @@ -1951,7 +1951,7 @@ static int omap_nand_probe(struct platform_device *pdev) nand_chip->ecc.write_page = omap_write_page_bch; err = elm_config(info->elm_dev, BCH8_ECC, - info->mtd.writesize / nand_chip->ecc.size, + mtd->writesize / nand_chip->ecc.size, nand_chip->ecc.size, nand_chip->ecc.bytes); if (err < 0) goto return_error; @@ -1981,7 +1981,7 @@ static int omap_nand_probe(struct platform_device *pdev) nand_chip->ecc.write_page = omap_write_page_bch; err = elm_config(info->elm_dev, BCH16_ECC, - info->mtd.writesize / nand_chip->ecc.size, + mtd->writesize / nand_chip->ecc.size, nand_chip->ecc.size, nand_chip->ecc.bytes); if (err < 0) goto return_error; -- cgit v1.2.3 From 53cd2681e02bee59e433b20934bf71f4db5a87d8 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:17 +0100 Subject: mtd: nand: orion: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/orion_nand.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 4ed4f676ee05..087a04024d6a 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -85,11 +85,11 @@ static int __init orion_nand_probe(struct platform_device *pdev) u32 val = 0; nc = devm_kzalloc(&pdev->dev, - sizeof(struct nand_chip) + sizeof(struct mtd_info), + sizeof(struct nand_chip), GFP_KERNEL); if (!nc) return -ENOMEM; - mtd = (struct mtd_info *)(nc + 1); + mtd = nand_to_mtd(nc); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); io_base = devm_ioremap_resource(&pdev->dev, res); -- cgit v1.2.3 From 4e3b6d1701be50dfb33879a066bae16c627f5794 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:18 +0100 Subject: mtd: nand: pasemi: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/pasemi_nand.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 0ececac2020f..4dd298523e81 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -110,17 +110,15 @@ static int pasemi_nand_probe(struct platform_device *ofdev) pr_debug("pasemi_nand at %pR\n", &res); /* Allocate memory for MTD device structure and private data */ - pasemi_nand_mtd = kzalloc(sizeof(struct mtd_info) + - sizeof(struct nand_chip), GFP_KERNEL); - if (!pasemi_nand_mtd) { + chip = kzalloc(sizeof(struct nand_chip), GFP_KERNEL); + if (!chip) { printk(KERN_WARNING "Unable to allocate PASEMI NAND MTD device structure\n"); err = -ENOMEM; goto out; } - /* Get pointer to private data */ - chip = (struct nand_chip *)&pasemi_nand_mtd[1]; + pasemi_nand_mtd = nand_to_mtd(chip); /* Link the private data with the MTD structure */ pasemi_nand_mtd->priv = chip; @@ -180,7 +178,7 @@ static int pasemi_nand_probe(struct platform_device *ofdev) out_ior: iounmap(chip->IO_ADDR_R); out_mtd: - kfree(pasemi_nand_mtd); + kfree(chip); out: return err; } @@ -202,7 +200,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev) iounmap(chip->IO_ADDR_R); /* Free the MTD device structure */ - kfree(pasemi_nand_mtd); + kfree(chip); pasemi_nand_mtd = NULL; -- cgit v1.2.3 From a0260d21ac91c5deaeadf4d53a27b3f9f40cb77b Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:19 +0100 Subject: mtd: nand: plat: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/plat_nand.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 06ac6c64dcd5..796eb7d54f2f 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -20,7 +20,6 @@ struct plat_nand_data { struct nand_chip chip; - struct mtd_info mtd; void __iomem *io_base; }; @@ -31,6 +30,7 @@ static int plat_nand_probe(struct platform_device *pdev) { struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); struct plat_nand_data *data; + struct mtd_info *mtd; struct resource *res; const char **part_types; int err = 0; @@ -58,8 +58,9 @@ static int plat_nand_probe(struct platform_device *pdev) data->chip.priv = &data; nand_set_flash_node(&data->chip, pdev->dev.of_node); - data->mtd.priv = &data->chip; - data->mtd.dev.parent = &pdev->dev; + mtd = nand_to_mtd(&data->chip); + mtd->priv = &data->chip; + mtd->dev.parent = &pdev->dev; data->chip.IO_ADDR_R = data->io_base; data->chip.IO_ADDR_W = data->io_base; @@ -87,21 +88,21 @@ static int plat_nand_probe(struct platform_device *pdev) } /* Scan to find existence of the device */ - if (nand_scan(&data->mtd, pdata->chip.nr_chips)) { + if (nand_scan(mtd, pdata->chip.nr_chips)) { err = -ENXIO; goto out; } part_types = pdata->chip.part_probe_types; - err = mtd_device_parse_register(&data->mtd, part_types, NULL, + err = mtd_device_parse_register(mtd, part_types, NULL, pdata->chip.partitions, pdata->chip.nr_partitions); if (!err) return err; - nand_release(&data->mtd); + nand_release(mtd); out: if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); @@ -116,7 +117,7 @@ static int plat_nand_remove(struct platform_device *pdev) struct plat_nand_data *data = platform_get_drvdata(pdev); struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - nand_release(&data->mtd); + nand_release(nand_to_mtd(&data->chip)); if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); -- cgit v1.2.3 From 063294a36e8e8c2642b6c63a709d6792a609ec33 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:20 +0100 Subject: mtd: nand: pxa3xx: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/pxa3xx_nand.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index dc39a9847bf5..c4d578809ea9 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -167,7 +167,6 @@ enum pxa3xx_nand_variant { struct pxa3xx_nand_host { struct nand_chip chip; - struct mtd_info *mtd; void *info_data; /* page size of attached chip */ @@ -450,14 +449,15 @@ static int pxa3xx_nand_init_timings_compat(struct pxa3xx_nand_host *host, struct nand_chip *chip = &host->chip; struct pxa3xx_nand_info *info = host->info_data; const struct pxa3xx_nand_flash *f = NULL; + struct mtd_info *mtd = nand_to_mtd(&host->chip); int i, id, ntypes; ntypes = ARRAY_SIZE(builtin_flash_types); - chip->cmdfunc(host->mtd, NAND_CMD_READID, 0x00, -1); + chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1); - id = chip->read_byte(host->mtd); - id |= chip->read_byte(host->mtd) << 0x8; + id = chip->read_byte(mtd); + id |= chip->read_byte(mtd) << 0x8; for (i = 0; i < ntypes; i++) { f = &builtin_flash_types[i]; @@ -890,7 +890,7 @@ static void set_command_address(struct pxa3xx_nand_info *info, static void prepare_start_command(struct pxa3xx_nand_info *info, int command) { struct pxa3xx_nand_host *host = info->host[info->cs]; - struct mtd_info *mtd = host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->chip); /* reset data and oob column point to handle data */ info->buf_start = 0; @@ -943,7 +943,7 @@ static int prepare_set_command(struct pxa3xx_nand_info *info, int command, struct mtd_info *mtd; host = info->host[info->cs]; - mtd = host->mtd; + mtd = nand_to_mtd(&host->chip); addr_cycle = 0; exec_cmd = 1; @@ -1415,8 +1415,8 @@ static int pxa3xx_nand_config_ident(struct pxa3xx_nand_info *info) static void pxa3xx_nand_config_tail(struct pxa3xx_nand_info *info) { struct pxa3xx_nand_host *host = info->host[info->cs]; - struct mtd_info *mtd = host->mtd; - struct nand_chip *chip = mtd_to_nand(mtd); + struct nand_chip *chip = &host->chip; + struct mtd_info *mtd = nand_to_mtd(chip); info->reg_ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0; info->reg_ndcr |= (chip->page_shift == 6) ? NDCR_PG_PER_BLK : 0; @@ -1693,19 +1693,20 @@ static int alloc_nand_resource(struct platform_device *pdev) pdata = dev_get_platdata(&pdev->dev); if (pdata->num_cs <= 0) return -ENODEV; - info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) + - sizeof(*host)) * pdata->num_cs, GFP_KERNEL); + info = devm_kzalloc(&pdev->dev, + sizeof(*info) + sizeof(*host) * pdata->num_cs, + GFP_KERNEL); if (!info) return -ENOMEM; info->pdev = pdev; info->variant = pxa3xx_nand_get_variant(pdev); for (cs = 0; cs < pdata->num_cs; cs++) { - mtd = (void *)&info[1] + (sizeof(*mtd) + sizeof(*host)) * cs; - chip = (struct nand_chip *)(&mtd[1]); - host = (struct pxa3xx_nand_host *)chip; + host = (void *)&info[1] + sizeof(*host) * cs; + chip = &host->chip; + chip->priv = host; + mtd = nand_to_mtd(chip); info->host[cs] = host; - host->mtd = mtd; host->cs = cs; host->info_data = info; mtd->priv = chip; @@ -1833,7 +1834,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_disable_unprepare(info->clk); for (cs = 0; cs < pdata->num_cs; cs++) - nand_release(info->host[cs]->mtd); + nand_release(nand_to_mtd(&info->host[cs]->chip)); return 0; } @@ -1904,7 +1905,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) info = platform_get_drvdata(pdev); probe_success = 0; for (cs = 0; cs < pdata->num_cs; cs++) { - struct mtd_info *mtd = info->host[cs]->mtd; + struct mtd_info *mtd = nand_to_mtd(&info->host[cs]->chip); /* * The mtd name matches the one used in 'mtdparts' kernel -- cgit v1.2.3 From de9f56f9137b8a6bfaf9b9dcb7d297bf0b61ffbf Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:21 +0100 Subject: mtd: nand: r852: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/r852.c | 34 +++++++++++++++------------------- drivers/mtd/nand/r852.h | 1 - 2 files changed, 15 insertions(+), 20 deletions(-) diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index ca05b20c017f..1ac8ef2ed2db 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -634,25 +634,22 @@ static void r852_update_media_status(struct r852_device *dev) */ static int r852_register_nand_device(struct r852_device *dev) { - dev->mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); - - if (!dev->mtd) - goto error1; + struct mtd_info *mtd = nand_to_mtd(dev->chip); WARN_ON(dev->card_registred); - dev->mtd->priv = dev->chip; - dev->mtd->dev.parent = &dev->pci_dev->dev; + mtd->priv = dev->chip; + mtd->dev.parent = &dev->pci_dev->dev; if (dev->readonly) dev->chip->options |= NAND_ROM; r852_engine_enable(dev); - if (sm_register_device(dev->mtd, dev->sm)) - goto error2; + if (sm_register_device(mtd, dev->sm)) + goto error1; - if (device_create_file(&dev->mtd->dev, &dev_attr_media_type)) { + if (device_create_file(&mtd->dev, &dev_attr_media_type)) { message("can't create media type sysfs attribute"); goto error3; } @@ -660,9 +657,7 @@ static int r852_register_nand_device(struct r852_device *dev) dev->card_registred = 1; return 0; error3: - nand_release(dev->mtd); -error2: - kfree(dev->mtd); + nand_release(mtd); error1: /* Force card redetect */ dev->card_detected = 0; @@ -675,15 +670,15 @@ error1: static void r852_unregister_nand_device(struct r852_device *dev) { + struct mtd_info *mtd = nand_to_mtd(dev->chip); + if (!dev->card_registred) return; - device_remove_file(&dev->mtd->dev, &dev_attr_media_type); - nand_release(dev->mtd); + device_remove_file(&mtd->dev, &dev_attr_media_type); + nand_release(mtd); r852_engine_disable(dev); dev->card_registred = 0; - kfree(dev->mtd); - dev->mtd = NULL; } /* Card state updater */ @@ -1031,6 +1026,7 @@ static int r852_suspend(struct device *device) static int r852_resume(struct device *device) { struct r852_device *dev = pci_get_drvdata(to_pci_dev(device)); + struct mtd_info *mtd = nand_to_mtd(dev->chip); r852_disable_irqs(dev); r852_card_update_present(dev); @@ -1050,9 +1046,9 @@ static int r852_resume(struct device *device) /* Otherwise, initialize the card */ if (dev->card_registred) { r852_engine_enable(dev); - dev->chip->select_chip(dev->mtd, 0); - dev->chip->cmdfunc(dev->mtd, NAND_CMD_RESET, -1, -1); - dev->chip->select_chip(dev->mtd, -1); + dev->chip->select_chip(mtd, 0); + dev->chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); + dev->chip->select_chip(mtd, -1); } /* Program card detection IRQ */ diff --git a/drivers/mtd/nand/r852.h b/drivers/mtd/nand/r852.h index e6a21d9d22c6..d042ddb71a8b 100644 --- a/drivers/mtd/nand/r852.h +++ b/drivers/mtd/nand/r852.h @@ -108,7 +108,6 @@ struct r852_device { void __iomem *mmio; /* mmio */ - struct mtd_info *mtd; /* mtd backpointer */ struct nand_chip *chip; /* nand chip backpointer */ struct pci_dev *pci_dev; /* pci backpointer */ -- cgit v1.2.3 From 9c9eef89ec74433f00593938f8af5113383d898a Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:23 +0100 Subject: mtd: nand: sh_flctl: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/sh_flctl.c | 8 ++++---- include/linux/mtd/sh_flctl.h | 3 +-- 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 57dc52578e07..0ec4b04b3536 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -607,13 +607,13 @@ static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr) case FL_REPAIRABLE: dev_info(&flctl->pdev->dev, "applied ecc on page 0x%x", page_addr); - flctl->mtd.ecc_stats.corrected++; + mtd->ecc_stats.corrected++; break; case FL_ERROR: dev_warn(&flctl->pdev->dev, "page 0x%x contains corrupted data\n", page_addr); - flctl->mtd.ecc_stats.failed++; + mtd->ecc_stats.failed++; break; default: ; @@ -1120,8 +1120,8 @@ static int flctl_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, flctl); - flctl_mtd = &flctl->mtd; nand = &flctl->chip; + flctl_mtd = nand_to_mtd(nand); nand_set_flash_node(nand, pdev->dev.of_node); flctl_mtd->priv = nand; flctl_mtd->dev.parent = &pdev->dev; @@ -1178,7 +1178,7 @@ static int flctl_remove(struct platform_device *pdev) struct sh_flctl *flctl = platform_get_drvdata(pdev); flctl_release_dma(flctl); - nand_release(&flctl->mtd); + nand_release(nand_to_mtd(&flctl->chip)); pm_runtime_disable(&pdev->dev); return 0; diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 1c28f8879b1c..76e3e88bedfe 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -143,7 +143,6 @@ enum flctl_ecc_res_t { struct dma_chan; struct sh_flctl { - struct mtd_info mtd; struct nand_chip chip; struct platform_device *pdev; struct dev_pm_qos_request pm_qos; @@ -186,7 +185,7 @@ struct sh_flctl_platform_data { static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo) { - return container_of(mtdinfo, struct sh_flctl, mtd); + return container_of(mtd_to_nand(mtdinfo), struct sh_flctl, chip); } #endif /* __SH_FLCTL_H__ */ -- cgit v1.2.3 From 0324e6469ab056bef1ffd7c36833448ab1f3df8d Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:24 +0100 Subject: mtd: nand: sharpsl: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/sharpsl.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 84129e539930..4b649fbad66e 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -29,13 +29,15 @@ #include struct sharpsl_nand { - struct mtd_info mtd; struct nand_chip chip; void __iomem *io; }; -#define mtd_to_sharpsl(_mtd) container_of(_mtd, struct sharpsl_nand, mtd) +static inline struct sharpsl_nand *mtd_to_sharpsl(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct sharpsl_nand, chip); +} /* register offset */ #define ECCLPLB 0x00 /* line parity 7 - 0 bit */ @@ -109,6 +111,7 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, static int sharpsl_nand_probe(struct platform_device *pdev) { struct nand_chip *this; + struct mtd_info *mtd; struct resource *r; int err = 0; struct sharpsl_nand *sharpsl; @@ -143,8 +146,9 @@ static int sharpsl_nand_probe(struct platform_device *pdev) this = (struct nand_chip *)(&sharpsl->chip); /* Link the private data with the MTD structure */ - sharpsl->mtd.priv = this; - sharpsl->mtd.dev.parent = &pdev->dev; + mtd = nand_to_mtd(this); + mtd->priv = this; + mtd->dev.parent = &pdev->dev; platform_set_drvdata(pdev, sharpsl); @@ -173,14 +177,14 @@ static int sharpsl_nand_probe(struct platform_device *pdev) this->ecc.correct = nand_correct_data; /* Scan to find existence of the device */ - err = nand_scan(&sharpsl->mtd, 1); + err = nand_scan(mtd, 1); if (err) goto err_scan; /* Register the partitions */ - sharpsl->mtd.name = "sharpsl-nand"; + mtd->name = "sharpsl-nand"; - err = mtd_device_parse_register(&sharpsl->mtd, NULL, NULL, + err = mtd_device_parse_register(mtd, NULL, NULL, data->partitions, data->nr_partitions); if (err) goto err_add; @@ -189,7 +193,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev) return 0; err_add: - nand_release(&sharpsl->mtd); + nand_release(mtd); err_scan: iounmap(sharpsl->io); @@ -207,7 +211,7 @@ static int sharpsl_nand_remove(struct platform_device *pdev) struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev); /* Release resources, unregister device */ - nand_release(&sharpsl->mtd); + nand_release(nand_to_mtd(&sharpsl->chip)); iounmap(sharpsl->io); -- cgit v1.2.3 From 32e9f2d8dd83f30019915f8393a470b3ff3fadbe Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:26 +0100 Subject: mtd: nand: sunxi: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/sunxi_nand.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 4ecd48601182..c29d659a747a 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -234,7 +234,6 @@ struct sunxi_nand_hw_ecc { struct sunxi_nand_chip { struct list_head node; struct nand_chip nand; - struct mtd_info mtd; unsigned long clk_rate; u32 timing_cfg; u32 timing_ctl; @@ -991,6 +990,7 @@ static int sunxi_nand_chip_set_timings(struct sunxi_nand_chip *chip, static int sunxi_nand_chip_init_timings(struct sunxi_nand_chip *chip, struct device_node *np) { + struct mtd_info *mtd = nand_to_mtd(&chip->nand); const struct nand_sdr_timings *timings; int ret; int mode; @@ -1008,12 +1008,11 @@ static int sunxi_nand_chip_init_timings(struct sunxi_nand_chip *chip, feature[0] = mode; for (i = 0; i < chip->nsels; i++) { - chip->nand.select_chip(&chip->mtd, i); - ret = chip->nand.onfi_set_features(&chip->mtd, - &chip->nand, + chip->nand.select_chip(mtd, i); + ret = chip->nand.onfi_set_features(mtd, &chip->nand, ONFI_FEATURE_ADDR_TIMING_MODE, feature); - chip->nand.select_chip(&chip->mtd, -1); + chip->nand.select_chip(mtd, -1); if (ret) return ret; } @@ -1336,7 +1335,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, nand->write_buf = sunxi_nfc_write_buf; nand->read_byte = sunxi_nfc_read_byte; - mtd = &chip->mtd; + mtd = nand_to_mtd(nand); mtd->dev.parent = dev; mtd->priv = nand; @@ -1407,7 +1406,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc) while (!list_empty(&nfc->chips)) { chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip, node); - nand_release(&chip->mtd); + nand_release(nand_to_mtd(&chip->nand)); sunxi_nand_ecc_cleanup(&chip->nand.ecc); list_del(&chip->node); } -- cgit v1.2.3 From 66c9595d499e9a10bee27bf4026d91452cc78568 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:27 +0100 Subject: mtd: nand: tmio: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/tmio_nand.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index 6d0cbe90b1b2..e7b82e11c795 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -103,7 +103,6 @@ /*--------------------------------------------------------------------------*/ struct tmio_nand { - struct mtd_info mtd; struct nand_chip chip; struct platform_device *dev; @@ -119,7 +118,10 @@ struct tmio_nand { unsigned read_good:1; }; -#define mtd_to_tmio(m) container_of(m, struct tmio_nand, mtd) +static inline struct tmio_nand *mtd_to_tmio(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct tmio_nand, chip); +} /*--------------------------------------------------------------------------*/ @@ -378,8 +380,8 @@ static int tmio_probe(struct platform_device *dev) tmio->dev = dev; platform_set_drvdata(dev, tmio); - mtd = &tmio->mtd; nand_chip = &tmio->chip; + mtd = nand_to_mtd(nand_chip); mtd->priv = nand_chip; mtd->name = "tmio-nand"; mtd->dev.parent = &dev->dev; @@ -456,7 +458,7 @@ static int tmio_remove(struct platform_device *dev) { struct tmio_nand *tmio = platform_get_drvdata(dev); - nand_release(&tmio->mtd); + nand_release(nand_to_mtd(&tmio->chip)); tmio_hw_stop(dev, tmio); return 0; } -- cgit v1.2.3 From a3f5437788fde26f9354324cb711461bdc02c6e0 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:28 +0100 Subject: mtd: nand: txx9ndfmc: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/txx9ndfmc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index ff9afb1eb3ad..da7fcbd37f3a 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -63,7 +63,6 @@ struct txx9ndfmc_priv { struct platform_device *dev; struct nand_chip chip; - struct mtd_info mtd; int cs; const char *mtdname; }; @@ -322,7 +321,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) if (!txx9_priv) continue; chip = &txx9_priv->chip; - mtd = &txx9_priv->mtd; + mtd = nand_to_mtd(chip); mtd->dev.parent = &dev->dev; mtd->priv = chip; -- cgit v1.2.3 From 960823a226b37eea01151d608636d09d1abac8f9 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:29 +0100 Subject: mtd: nand: vf610: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/vf610_nfc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index 1c86c6b42515..1bbb93a7b4e5 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -156,7 +156,6 @@ enum vf610_nfc_variant { }; struct vf610_nfc { - struct mtd_info mtd; struct nand_chip chip; struct device *dev; void __iomem *regs; @@ -171,7 +170,10 @@ struct vf610_nfc { u32 ecc_mode; }; -#define mtd_to_nfc(_mtd) container_of(_mtd, struct vf610_nfc, mtd) +static inline struct vf610_nfc *mtd_to_nfc(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct vf610_nfc, chip); +} static struct nand_ecclayout vf610_nfc_ecc45 = { .eccbytes = 45, @@ -674,8 +676,8 @@ static int vf610_nfc_probe(struct platform_device *pdev) return -ENOMEM; nfc->dev = &pdev->dev; - mtd = &nfc->mtd; chip = &nfc->chip; + mtd = nand_to_mtd(chip); mtd->priv = chip; mtd->owner = THIS_MODULE; -- cgit v1.2.3 From 3eb064e4b0f423810562b8a7aef3ca0083152e90 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:30 +0100 Subject: mtd: nand: update the documentation to reflect framework changes The MTD device is now directly embedded in the nand_chip struct. Update the mtdnand documentation to mention this aspect and fix the different examples. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- Documentation/DocBook/mtdnand.tmpl | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl index 403a7abfc2bc..b442921bca54 100644 --- a/Documentation/DocBook/mtdnand.tmpl +++ b/Documentation/DocBook/mtdnand.tmpl @@ -162,12 +162,15 @@ Basic defines - At least you have to provide a mtd structure and - a storage for the ioremap'ed chip address. - You can allocate the mtd structure using kmalloc - or you can allocate it statically. - In case of static allocation you have to allocate - a nand_chip structure too. + At least you have to provide a nand_chip structure + and a storage for the ioremap'ed chip address. + You can allocate the nand_chip structure using + kmalloc or you can allocate it statically. + The NAND chip structure embeds an mtd structure + which will be registered to the MTD subsystem. + You can extract a pointer to the mtd structure + from a nand_chip pointer using the nand_to_mtd() + helper. Kmalloc based example @@ -180,7 +183,6 @@ static void __iomem *baseaddr; Static example -static struct mtd_info board_mtd; static struct nand_chip board_chip; static void __iomem *baseaddr; @@ -274,13 +276,15 @@ static int __init board_init (void) int err = 0; /* Allocate memory for MTD device structure and private data */ - board_mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); - if (!board_mtd) { + this = kzalloc(sizeof(struct nand_chip), GFP_KERNEL); + if (!this) { printk ("Unable to allocate NAND MTD device structure.\n"); err = -ENOMEM; goto out; } + board_mtd = nand_to_mtd(this); + /* map physical address */ baseaddr = ioremap(CHIP_PHYSICAL_ADDRESS, 1024); if (!baseaddr) { @@ -289,11 +293,6 @@ static int __init board_init (void) goto out_mtd; } - /* Get pointer to private data */ - this = (struct nand_chip *) (); - /* Link the private data with the MTD structure */ - board_mtd->priv = this; - /* Set address of NAND IO lines */ this->IO_ADDR_R = baseaddr; this->IO_ADDR_W = baseaddr; @@ -317,7 +316,7 @@ static int __init board_init (void) out_ior: iounmap(baseaddr); out_mtd: - kfree (board_mtd); + kfree (this); out: return err; } @@ -343,7 +342,7 @@ static void __exit board_cleanup (void) iounmap(baseaddr); /* Free the MTD device structure */ - kfree (board_mtd); + kfree (mtd_to_nand(board_mtd)); } module_exit(board_cleanup); #endif -- cgit v1.2.3 From 7208b997b726522cdbea61f53a82c763704c015a Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:22 +0100 Subject: mtd: nand: s3c2410: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Reviewed-by: Krzysztof Kozlowski Signed-off-by: Brian Norris --- drivers/mtd/nand/s3c2410.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index e658b2988acf..c074a491d087 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -104,7 +104,6 @@ struct s3c2410_nand_info; * @scan_res: The result from calling nand_scan_ident(). */ struct s3c2410_nand_mtd { - struct mtd_info mtd; struct nand_chip chip; struct s3c2410_nand_set *set; struct s3c2410_nand_info *info; @@ -168,7 +167,8 @@ struct s3c2410_nand_info { static struct s3c2410_nand_mtd *s3c2410_nand_mtd_toours(struct mtd_info *mtd) { - return container_of(mtd, struct s3c2410_nand_mtd, mtd); + return container_of(mtd_to_nand(mtd), struct s3c2410_nand_mtd, + chip); } static struct s3c2410_nand_info *s3c2410_nand_mtd_toinfo(struct mtd_info *mtd) @@ -745,7 +745,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev) for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) { pr_debug("releasing mtd %d (%p)\n", mtdno, ptr); - nand_release(&ptr->mtd); + nand_release(nand_to_mtd(&ptr->chip)); } } @@ -762,9 +762,11 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, struct s3c2410_nand_set *set) { if (set) { - mtd->mtd.name = set->name; + struct mtd_info *mtdinfo = nand_to_mtd(&mtd->chip); - return mtd_device_parse_register(&mtd->mtd, NULL, NULL, + mtdinfo->name = set->name; + + return mtd_device_parse_register(mtdinfo, NULL, NULL, set->partitions, set->nr_partitions); } @@ -786,6 +788,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, struct s3c2410_nand_set *set) { struct nand_chip *chip = &nmtd->chip; + struct mtd_info *mtd = nand_to_mtd(chip); void __iomem *regs = info->regs; chip->write_buf = s3c2410_nand_write_buf; @@ -831,7 +834,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, chip->IO_ADDR_R = chip->IO_ADDR_W; nmtd->info = info; - nmtd->mtd.priv = chip; + mtd->priv = chip; nmtd->set = set; #ifdef CONFIG_MTD_NAND_S3C2410_HWECC @@ -1012,19 +1015,21 @@ static int s3c24xx_nand_probe(struct platform_device *pdev) nmtd = info->mtds; for (setno = 0; setno < nr_sets; setno++, nmtd++) { + struct mtd_info *mtd = nand_to_mtd(&nmtd->chip); + pr_debug("initialising set %d (%p, info %p)\n", setno, nmtd, info); - nmtd->mtd.dev.parent = &pdev->dev; + mtd->dev.parent = &pdev->dev; s3c2410_nand_init_chip(info, nmtd, sets); - nmtd->scan_res = nand_scan_ident(&nmtd->mtd, + nmtd->scan_res = nand_scan_ident(mtd, (sets) ? sets->nr_chips : 1, NULL); if (nmtd->scan_res == 0) { s3c2410_nand_update_chip(info, nmtd); - nand_scan_tail(&nmtd->mtd); + nand_scan_tail(mtd); s3c2410_nand_add_partition(info, nmtd, sets); } -- cgit v1.2.3 From 2d3743944a6b425f3a3795a967499c13e0d8856c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 18 Dec 2015 11:39:53 -0800 Subject: mtd: nand: docg4: simplify error case Other refactorings have left the 'fail' label much simpler, so it shouldn't have to handle the failed allocation case. This also fixes a -Wshadow warning. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/nand/docg4.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index cb6efadd712e..24d478d90dcc 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -1353,14 +1353,10 @@ static int __init probe_docg4(struct platform_device *pdev) doc->mtd = mtd; return 0; - fail: - if (nand) { - /* re-declarations avoid compiler warning */ - struct docg4_priv *doc = nand->priv; - nand_release(mtd); /* deletes partitions and mtd devices */ - free_bch(doc->bch); - kfree(nand); - } +fail: + nand_release(mtd); /* deletes partitions and mtd devices */ + free_bch(doc->bch); + kfree(nand); fail_unmap: iounmap(virtadr); -- cgit v1.2.3 From ba4ed8605cb09b2cb72bf14499cf4605a0f9eb23 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:31 +0100 Subject: staging: mt29f_spinand: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device, use it instead of allocating a new one. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/staging/mt29f_spinand/mt29f_spinand.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index 8924a9645a43..8171b741ff86 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -903,9 +903,7 @@ static int spinand_probe(struct spi_device *spi_nand) chip->options |= NAND_CACHEPRG; chip->select_chip = spinand_select_chip; - mtd = devm_kzalloc(&spi_nand->dev, sizeof(struct mtd_info), GFP_KERNEL); - if (!mtd) - return -ENOMEM; + mtd = nand_to_mtd(chip); dev_set_drvdata(&spi_nand->dev, mtd); -- cgit v1.2.3 From 4883090bedd79c2c5b408976f0f49e7041cbc3cb Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:32 +0100 Subject: cris: nand: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Patch all drivers to make use of this mtd instance instead of using the instance embedded in their private struct or dynamically allocated. Signed-off-by: Boris Brezillon Acked-by: Jesper Nilsson Signed-off-by: Brian Norris --- arch/cris/arch-v32/drivers/mach-a3/nandflash.c | 3 +-- arch/cris/arch-v32/drivers/mach-fs/nandflash.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c index db953cfabee1..ee74e45a5cf4 100644 --- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c @@ -36,7 +36,6 @@ #define CE_BIT 12 struct mtd_info_wrapper { - struct mtd_info info; struct nand_chip chip; }; @@ -148,7 +147,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void) /* Get pointer to private data */ this = &wrapper->chip; - crisv32_mtd = &wrapper->info; + crisv32_mtd = nand_to_mtd(this); /* Link the private data with the MTD structure */ crisv32_mtd->priv = this; diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c index 22a6467ffe1f..56262973ed2b 100644 --- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c @@ -31,7 +31,6 @@ #define BY_BIT 7 struct mtd_info_wrapper { - struct mtd_info info; struct nand_chip chip; }; @@ -129,7 +128,7 @@ struct mtd_info *__init crisv32_nand_flash_probe(void) /* Get pointer to private data */ this = &wrapper->chip; - crisv32_mtd = &wrapper->info; + crisv32_mtd = nand_to_mtd(this); pa_oe.oe |= 1 << CE_BIT; pa_oe.oe |= 1 << ALE_BIT; -- cgit v1.2.3 From 17dd20bd7d4389d3bc54d71e263088039203ea07 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 08:59:52 +0100 Subject: mtd: nand: bcm47xx: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h | 1 - drivers/mtd/nand/bcm47xxnflash/main.c | 10 ++++++---- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 2 +- 3 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h index c005a62330b1..8ea75710a854 100644 --- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h +++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h @@ -12,7 +12,6 @@ struct bcm47xxnflash { struct bcma_drv_cc *cc; struct nand_chip nand_chip; - struct mtd_info mtd; unsigned curr_command; int curr_page_addr; diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index 0b3acc439181..2c9bffb614c5 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -27,6 +27,7 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) { struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); struct bcm47xxnflash *b47n; + struct mtd_info *mtd; int err = 0; b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL); @@ -34,8 +35,9 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) return -ENOMEM; b47n->nand_chip.priv = b47n; - b47n->mtd.dev.parent = &pdev->dev; - b47n->mtd.priv = &b47n->nand_chip; /* Required */ + mtd = nand_to_mtd(&b47n->nand_chip); + mtd->dev.parent = &pdev->dev; + mtd->priv = &b47n->nand_chip; /* Required */ b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { @@ -51,7 +53,7 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) platform_set_drvdata(pdev, b47n); - err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0); + err = mtd_device_parse_register(mtd, probes, NULL, NULL, 0); if (err) { pr_err("Failed to register MTD device: %d\n", err); return err; @@ -64,7 +66,7 @@ static int bcm47xxnflash_remove(struct platform_device *pdev) { struct bcm47xxnflash *nflash = platform_get_drvdata(pdev); - nand_release(&nflash->mtd); + nand_release(nand_to_mtd(&nflash->nand_chip)); return 0; } diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index e5b2e48658c4..652478035a7d 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -421,7 +421,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n) (w4 << 24 | w3 << 18 | w2 << 12 | w1 << 6 | w0)); /* Scan NAND */ - err = nand_scan(&b47n->mtd, 1); + err = nand_scan(nand_to_mtd(&b47n->nand_chip), 1); if (err) { pr_err("Could not scan NAND flash: %d\n", err); goto exit; -- cgit v1.2.3 From a723bf6a58b17379c27f869402baddf4b0d2c7dc Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Fri, 11 Dec 2015 15:04:06 +0100 Subject: mtd: nand: socrates: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/socrates_nand.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index 2dfb1e0d815a..925761c240ca 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -30,7 +30,6 @@ struct socrates_nand_host { struct nand_chip nand_chip; - struct mtd_info mtd; void __iomem *io_base; struct device *dev; }; @@ -159,8 +158,8 @@ static int socrates_nand_probe(struct platform_device *ofdev) return -EIO; } - mtd = &host->mtd; nand_chip = &host->nand_chip; + mtd = nand_to_mtd(nand_chip); host->dev = &ofdev->dev; nand_chip->priv = host; /* link the private data structures */ @@ -216,7 +215,7 @@ out: static int socrates_nand_remove(struct platform_device *ofdev) { struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev); - struct mtd_info *mtd = &host->mtd; + struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); nand_release(mtd); -- cgit v1.2.3 From 442f201b93b5222ac2e4f7513be86fdbd00e9065 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Fri, 11 Dec 2015 15:06:00 +0100 Subject: mtd: nand: denali: use the mtd instance embedded in struct nand_chip struct nand_chip now embeds an mtd device. Make use of this mtd instance. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/denali.c | 69 ++++++++++++++++++++++++++--------------------- drivers/mtd/nand/denali.h | 1 - 2 files changed, 38 insertions(+), 32 deletions(-) diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 9a5035cac129..b1dd172ef565 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -75,7 +75,10 @@ MODULE_PARM_DESC(onfi_timing_mode, * this macro allows us to convert from an MTD structure to our own * device context (denali) structure. */ -#define mtd_to_denali(m) container_of(m, struct denali_nand_info, mtd) +static inline struct denali_nand_info *mtd_to_denali(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct denali_nand_info, nand); +} /* * These constants are defined by the driver to enable common driver @@ -986,6 +989,8 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf, * than one NAND connected. */ if (err_byte < ECC_SECTOR_SIZE) { + struct mtd_info *mtd = + nand_to_mtd(&denali->nand); int offset; offset = (err_sector * @@ -995,7 +1000,7 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf, err_device; /* correct the ECC error */ buf[offset] ^= err_correction_value; - denali->mtd.ecc_stats.corrected++; + mtd->ecc_stats.corrected++; bitflips++; } } else { @@ -1062,7 +1067,7 @@ static int write_page(struct mtd_info *mtd, struct nand_chip *chip, { struct denali_nand_info *denali = mtd_to_denali(mtd); dma_addr_t addr = denali->buf.dma_buf; - size_t size = denali->mtd.writesize + denali->mtd.oobsize; + size_t size = mtd->writesize + mtd->oobsize; uint32_t irq_status; uint32_t irq_mask = INTR_STATUS__DMA_CMD_COMP | INTR_STATUS__PROGRAM_FAIL; @@ -1160,7 +1165,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip, struct denali_nand_info *denali = mtd_to_denali(mtd); dma_addr_t addr = denali->buf.dma_buf; - size_t size = denali->mtd.writesize + denali->mtd.oobsize; + size_t size = mtd->writesize + mtd->oobsize; uint32_t irq_status; uint32_t irq_mask = INTR_STATUS__ECC_TRANSACTION_DONE | @@ -1193,14 +1198,14 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip, denali_enable_dma(denali, false); if (check_erased_page) { - read_oob_data(&denali->mtd, chip->oob_poi, denali->page); + read_oob_data(mtd, chip->oob_poi, denali->page); /* check ECC failures that may have occurred on erased pages */ if (check_erased_page) { - if (!is_erased(buf, denali->mtd.writesize)) - denali->mtd.ecc_stats.failed++; - if (!is_erased(buf, denali->mtd.oobsize)) - denali->mtd.ecc_stats.failed++; + if (!is_erased(buf, mtd->writesize)) + mtd->ecc_stats.failed++; + if (!is_erased(buf, mtd->oobsize)) + mtd->ecc_stats.failed++; } } return max_bitflips; @@ -1211,7 +1216,7 @@ static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, { struct denali_nand_info *denali = mtd_to_denali(mtd); dma_addr_t addr = denali->buf.dma_buf; - size_t size = denali->mtd.writesize + denali->mtd.oobsize; + size_t size = mtd->writesize + mtd->oobsize; uint32_t irq_mask = INTR_STATUS__DMA_CMD_COMP; if (page != denali->page) { @@ -1428,6 +1433,7 @@ static void denali_drv_init(struct denali_nand_info *denali) int denali_init(struct denali_nand_info *denali) { + struct mtd_info *mtd = nand_to_mtd(&denali->nand); int ret; if (denali->platform == INTEL_CE4100) { @@ -1447,7 +1453,7 @@ int denali_init(struct denali_nand_info *denali) if (!denali->buf.buf) return -ENOMEM; - denali->mtd.dev.parent = denali->dev; + mtd->dev.parent = denali->dev; denali_hw_init(denali); denali_drv_init(denali); @@ -1463,8 +1469,8 @@ int denali_init(struct denali_nand_info *denali) /* now that our ISR is registered, we can enable interrupts */ denali_set_intr_modes(denali, true); - denali->mtd.name = "denali-nand"; - denali->mtd.priv = &denali->nand; + mtd->name = "denali-nand"; + mtd->priv = &denali->nand; /* register the driver with the NAND core subsystem */ denali->nand.select_chip = denali_select_chip; @@ -1477,7 +1483,7 @@ int denali_init(struct denali_nand_info *denali) * this is the first stage in a two step process to register * with the nand subsystem */ - if (nand_scan_ident(&denali->mtd, denali->max_banks, NULL)) { + if (nand_scan_ident(mtd, denali->max_banks, NULL)) { ret = -ENXIO; goto failed_req_irq; } @@ -1485,7 +1491,7 @@ int denali_init(struct denali_nand_info *denali) /* allocate the right size buffer now */ devm_kfree(denali->dev, denali->buf.buf); denali->buf.buf = devm_kzalloc(denali->dev, - denali->mtd.writesize + denali->mtd.oobsize, + mtd->writesize + mtd->oobsize, GFP_KERNEL); if (!denali->buf.buf) { ret = -ENOMEM; @@ -1500,7 +1506,7 @@ int denali_init(struct denali_nand_info *denali) } denali->buf.dma_buf = dma_map_single(denali->dev, denali->buf.buf, - denali->mtd.writesize + denali->mtd.oobsize, + mtd->writesize + mtd->oobsize, DMA_BIDIRECTIONAL); if (dma_mapping_error(denali->dev, denali->buf.dma_buf)) { dev_err(denali->dev, "Spectra: failed to map DMA buffer\n"); @@ -1521,10 +1527,10 @@ int denali_init(struct denali_nand_info *denali) denali->nand.bbt_erase_shift += (denali->devnum - 1); denali->nand.phys_erase_shift = denali->nand.bbt_erase_shift; denali->nand.chip_shift += (denali->devnum - 1); - denali->mtd.writesize <<= (denali->devnum - 1); - denali->mtd.oobsize <<= (denali->devnum - 1); - denali->mtd.erasesize <<= (denali->devnum - 1); - denali->mtd.size = denali->nand.numchips * denali->nand.chipsize; + mtd->writesize <<= (denali->devnum - 1); + mtd->oobsize <<= (denali->devnum - 1); + mtd->erasesize <<= (denali->devnum - 1); + mtd->size = denali->nand.numchips * denali->nand.chipsize; denali->bbtskipbytes *= denali->devnum; /* @@ -1551,16 +1557,16 @@ int denali_init(struct denali_nand_info *denali) * SLC if possible. * */ if (!nand_is_slc(&denali->nand) && - (denali->mtd.oobsize > (denali->bbtskipbytes + - ECC_15BITS * (denali->mtd.writesize / + (mtd->oobsize > (denali->bbtskipbytes + + ECC_15BITS * (mtd->writesize / ECC_SECTOR_SIZE)))) { /* if MLC OOB size is large enough, use 15bit ECC*/ denali->nand.ecc.strength = 15; denali->nand.ecc.layout = &nand_15bit_oob; denali->nand.ecc.bytes = ECC_15BITS; iowrite32(15, denali->flash_reg + ECC_CORRECTION); - } else if (denali->mtd.oobsize < (denali->bbtskipbytes + - ECC_8BITS * (denali->mtd.writesize / + } else if (mtd->oobsize < (denali->bbtskipbytes + + ECC_8BITS * (mtd->writesize / ECC_SECTOR_SIZE))) { pr_err("Your NAND chip OOB is not large enough to contain 8bit ECC correction codes"); goto failed_req_irq; @@ -1574,11 +1580,11 @@ int denali_init(struct denali_nand_info *denali) denali->nand.ecc.bytes *= denali->devnum; denali->nand.ecc.strength *= denali->devnum; denali->nand.ecc.layout->eccbytes *= - denali->mtd.writesize / ECC_SECTOR_SIZE; + mtd->writesize / ECC_SECTOR_SIZE; denali->nand.ecc.layout->oobfree[0].offset = denali->bbtskipbytes + denali->nand.ecc.layout->eccbytes; denali->nand.ecc.layout->oobfree[0].length = - denali->mtd.oobsize - denali->nand.ecc.layout->eccbytes - + mtd->oobsize - denali->nand.ecc.layout->eccbytes - denali->bbtskipbytes; /* @@ -1586,7 +1592,7 @@ int denali_init(struct denali_nand_info *denali) * contained by each nand chip. blksperchip will help driver to * know how many blocks is taken by FW. */ - denali->totalblks = denali->mtd.size >> denali->nand.phys_erase_shift; + denali->totalblks = mtd->size >> denali->nand.phys_erase_shift; denali->blksperchip = denali->totalblks / denali->nand.numchips; /* override the default read operations */ @@ -1599,12 +1605,12 @@ int denali_init(struct denali_nand_info *denali) denali->nand.ecc.write_oob = denali_write_oob; denali->nand.erase = denali_erase; - if (nand_scan_tail(&denali->mtd)) { + if (nand_scan_tail(mtd)) { ret = -ENXIO; goto failed_req_irq; } - ret = mtd_device_register(&denali->mtd, NULL, 0); + ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(denali->dev, "Spectra: Failed to register MTD: %d\n", ret); @@ -1622,14 +1628,15 @@ EXPORT_SYMBOL(denali_init); /* driver exit point */ void denali_remove(struct denali_nand_info *denali) { + struct mtd_info *mtd = nand_to_mtd(&denali->nand); /* * Pre-compute DMA buffer size to avoid any problems in case * nand_release() ever changes in a way that mtd->writesize and * mtd->oobsize are not reliable after this call. */ - int bufsize = denali->mtd.writesize + denali->mtd.oobsize; + int bufsize = mtd->writesize + mtd->oobsize; - nand_release(&denali->mtd); + nand_release(mtd); denali_irq_cleanup(denali->irq, denali); dma_unmap_single(denali->dev, denali->buf.dma_buf, bufsize, DMA_BIDIRECTIONAL); diff --git a/drivers/mtd/nand/denali.h b/drivers/mtd/nand/denali.h index 4b12cd302819..e7ab4866a5da 100644 --- a/drivers/mtd/nand/denali.h +++ b/drivers/mtd/nand/denali.h @@ -450,7 +450,6 @@ struct nand_buf { #define DT 3 struct denali_nand_info { - struct mtd_info mtd; struct nand_chip nand; int flash_bank; /* currently selected chip */ int status; -- cgit v1.2.3 From 2d3b77bac34bf99d7fdfd712ec2dc4317b3e850b Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:33 +0100 Subject: mtd: nand: update mtd_to_nand() Now that all drivers are using the mtd instance embedded in the nand_chip struct we can safely update the mtd_to_nand() implementation to use the container_of macro instead of returning the content of mtd->priv. This will allow us to remove mtd->priv = chip assignments done in all NAND controller drivers. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index b614ed2105ac..9cb7ace6fb1f 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -734,7 +734,7 @@ static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) { - return mtd->priv; + return container_of(mtd, struct nand_chip, mtd); } static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip) -- cgit v1.2.3 From 37f5a54646da0760306ab8570115e20d0ed615f5 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:34 +0100 Subject: mtd: nand: remove useless mtd->priv = chip assignments mtd_to_nand() now uses the container_of() approach to transform an mtd_info pointer into a nand_chip one. Drop useless mtd->priv assignments from NAND controller drivers. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/ams-delta.c | 3 --- drivers/mtd/nand/atmel_nand.c | 1 - drivers/mtd/nand/au1550nd.c | 1 - drivers/mtd/nand/bcm47xxnflash/main.c | 1 - drivers/mtd/nand/bf5xx_nand.c | 1 - drivers/mtd/nand/brcmnand/brcmnand.c | 1 - drivers/mtd/nand/cafe_nand.c | 1 - drivers/mtd/nand/cmx270_nand.c | 1 - drivers/mtd/nand/cs553x_nand.c | 1 - drivers/mtd/nand/davinci_nand.c | 1 - drivers/mtd/nand/denali.c | 1 - drivers/mtd/nand/diskonchip.c | 1 - drivers/mtd/nand/docg4.c | 1 - drivers/mtd/nand/fsl_elbc_nand.c | 1 - drivers/mtd/nand/fsl_ifc_nand.c | 1 - drivers/mtd/nand/fsl_upm.c | 1 - drivers/mtd/nand/fsmc_nand.c | 1 - drivers/mtd/nand/gpio.c | 1 - drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 1 - drivers/mtd/nand/hisi504_nand.c | 1 - drivers/mtd/nand/jz4740_nand.c | 1 - drivers/mtd/nand/lpc32xx_mlc.c | 1 - drivers/mtd/nand/lpc32xx_slc.c | 1 - drivers/mtd/nand/mpc5121_nfc.c | 1 - drivers/mtd/nand/mxc_nand.c | 1 - drivers/mtd/nand/nandsim.c | 1 - drivers/mtd/nand/ndfc.c | 1 - drivers/mtd/nand/nuc900_nand.c | 1 - drivers/mtd/nand/omap2.c | 1 - drivers/mtd/nand/orion_nand.c | 1 - drivers/mtd/nand/pasemi_nand.c | 1 - drivers/mtd/nand/plat_nand.c | 1 - drivers/mtd/nand/pxa3xx_nand.c | 1 - drivers/mtd/nand/r852.c | 1 - drivers/mtd/nand/s3c2410.c | 2 -- drivers/mtd/nand/sh_flctl.c | 1 - drivers/mtd/nand/sharpsl.c | 1 - drivers/mtd/nand/socrates_nand.c | 1 - drivers/mtd/nand/sunxi_nand.c | 1 - drivers/mtd/nand/tmio_nand.c | 1 - drivers/mtd/nand/txx9ndfmc.c | 2 -- drivers/mtd/nand/vf610_nfc.c | 1 - 42 files changed, 46 deletions(-) diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 0f638c628a0d..1a18938565ac 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -193,9 +193,6 @@ static int ams_delta_init(struct platform_device *pdev) ams_delta_mtd = nand_to_mtd(this); ams_delta_mtd->owner = THIS_MODULE; - /* Link the private data with the MTD structure */ - ams_delta_mtd->priv = this; - /* * Don't try to request the memory region from here, * it should have been already requested from the diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 9ba2831277ea..18c4e14ec29f 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -2128,7 +2128,6 @@ static int atmel_nand_probe(struct platform_device *pdev) } nand_chip->priv = host; /* link the private data structures */ - mtd->priv = nand_chip; mtd->dev.parent = &pdev->dev; /* Set address of NAND IO lines */ diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 280e5b61b815..341ea4904164 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -441,7 +441,6 @@ static int au1550nd_probe(struct platform_device *pdev) this = &ctx->chip; mtd = nand_to_mtd(this); - mtd->priv = this; mtd->dev.parent = &pdev->dev; /* figure out which CS# r->start belongs to */ diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index 2c9bffb614c5..b44f821b1a3a 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -37,7 +37,6 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) b47n->nand_chip.priv = b47n; mtd = nand_to_mtd(&b47n->nand_chip); mtd->dev.parent = &pdev->dev; - mtd->priv = &b47n->nand_chip; /* Required */ b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 928d59920569..9514e136542f 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -782,7 +782,6 @@ static int bf5xx_nand_probe(struct platform_device *pdev) chip->chip_delay = 0; /* initialise mtd info data struct */ - mtd->priv = chip; mtd->dev.parent = &pdev->dev; /* initialise the hardware */ diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index c05723b4d773..aea08816d3ac 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -1924,7 +1924,6 @@ static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn) nand_set_flash_node(chip, dn); chip->priv = host; - mtd->priv = chip; mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "brcmnand.%d", host->cs); mtd->owner = THIS_MODULE; diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 7d6a14218bef..00c15e22d827 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -611,7 +611,6 @@ static int cafe_nand_probe(struct pci_dev *pdev, mtd = nand_to_mtd(&cafe->nand); mtd->dev.parent = &pdev->dev; - mtd->priv = &cafe->nand; cafe->nand.priv = cafe; cafe->pdev = pdev; diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 00fd0e933ffb..6f97ebba52c4 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -177,7 +177,6 @@ static int __init cmx270_init(void) /* Link the private data with the MTD structure */ cmx270_nand_mtd->owner = THIS_MODULE; - cmx270_nand_mtd->priv = this; /* insert callbacks */ this->IO_ADDR_R = cmx270_nand_io; diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index 386ae832e03f..a65e4e0f57a1 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -206,7 +206,6 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) new_mtd = nand_to_mtd(this); /* Link the private data with the MTD structure */ - new_mtd->priv = this; new_mtd->owner = THIS_MODULE; /* map physical address */ diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index b1f69f982070..3b49fe86625d 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -685,7 +685,6 @@ static int nand_davinci_probe(struct platform_device *pdev) info->vaddr = vaddr; mtd = nand_to_mtd(&info->chip); - mtd->priv = &info->chip; mtd->dev.parent = &pdev->dev; nand_set_flash_node(&info->chip, pdev->dev.of_node); diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index b1dd172ef565..30bf5f690f78 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1470,7 +1470,6 @@ int denali_init(struct denali_nand_info *denali) /* now that our ISR is registered, we can enable interrupts */ denali_set_intr_modes(denali, true); mtd->name = "denali-nand"; - mtd->priv = &denali->nand; /* register the driver with the NAND core subsystem */ denali->nand.select_chip = denali_select_chip; diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index fff7a4a69759..a5c046654233 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1569,7 +1569,6 @@ static int __init doc_probe(unsigned long physadr) nand->bbt_td = (struct nand_bbt_descr *) (doc + 1); nand->bbt_md = nand->bbt_td + 1; - mtd->priv = nand; mtd->owner = THIS_MODULE; nand->priv = doc; diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 24d478d90dcc..95cd139e8a40 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -1314,7 +1314,6 @@ static int __init probe_docg4(struct platform_device *pdev) mtd = nand_to_mtd(nand); doc = (struct docg4_priv *) (nand + 1); - mtd->priv = nand; nand->priv = doc; mtd->dev.parent = &pdev->dev; doc->virtadr = virtadr; diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 7bde76a02555..e96d5bcc2922 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -746,7 +746,6 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank); /* Fill in fsl_elbc_mtd structure */ - mtd->priv = chip; mtd->dev.parent = priv->dev; nand_set_flash_node(chip, priv->dev->of_node); diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 3f5654f52cee..9d2b4ed06c81 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -881,7 +881,6 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) u32 csor; /* Fill in fsl_ifc_mtd structure */ - mtd->priv = chip; mtd->dev.parent = priv->dev; nand_set_flash_node(chip, priv->dev->of_node); diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 0379adc2d90e..cafd12de7276 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -176,7 +176,6 @@ static int fun_chip_init(struct fsl_upm_nand *fun, if (fun->rnb_gpio[0] >= 0) fun->chip.dev_ready = fun_chip_ready; - mtd->priv = &fun->chip; mtd->dev.parent = fun->dev; flash_np = of_get_next_child(upm_np, NULL); diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 4c68e7a39b50..9a7c1f5ffcaa 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -1009,7 +1009,6 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) /* Link all private pointers */ mtd = nand_to_mtd(&host->nand); nand = &host->nand; - mtd->priv = nand; nand->priv = host; nand_set_flash_node(nand, np); diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index 99dd74c11038..ded658fc7d73 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -278,7 +278,6 @@ static int gpio_nand_probe(struct platform_device *pdev) chip->cmd_ctrl = gpio_nand_cmd_ctrl; mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->dev.parent = &pdev->dev; platform_set_drvdata(pdev, gpiomtd); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 38b07c7aa1e4..df61f49d3770 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1893,7 +1893,6 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) this->current_chip = -1; /* init the MTD data structures */ - mtd->priv = chip; mtd->name = "gpmi-nand"; mtd->dev.parent = this->dev; diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index 6e6e482c02a3..2aee212b6169 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -735,7 +735,6 @@ static int hisi_nfc_probe(struct platform_device *pdev) goto err_res; } - mtd->priv = chip; mtd->name = "hisi_nand"; mtd->dev.parent = &pdev->dev; diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 03239a5a04cd..a2363d33cecc 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -433,7 +433,6 @@ static int jz_nand_probe(struct platform_device *pdev) chip = &nand->chip; mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->dev.parent = &pdev->dev; mtd->name = "jz4740-nand"; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 3400b3f99d30..db59fa28d5c8 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -681,7 +681,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) nand_chip->priv = host; /* link the private data structures */ nand_set_flash_node(nand_chip, pdev->dev.of_node); - mtd->priv = nand_chip; mtd->dev.parent = &pdev->dev; /* Get NAND clock */ diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index 61b2961297df..ccd10b182a22 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -802,7 +802,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) mtd = nand_to_mtd(chip); chip->priv = host; nand_set_flash_node(chip, pdev->dev.of_node); - mtd->priv = chip; mtd->owner = THIS_MODULE; mtd->dev.parent = &pdev->dev; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 8b4cd82f019e..6d0ca33dd7ab 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -656,7 +656,6 @@ static int mpc5121_nfc_probe(struct platform_device *op) chip = &prv->chip; mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->dev.parent = dev; chip->priv = prv; nand_set_flash_node(chip, dn); diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 9dd71af363c3..95400992c3e9 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1514,7 +1514,6 @@ static int mxcnd_probe(struct platform_device *pdev) /* structures must be linked */ this = &host->nand; mtd = nand_to_mtd(this); - mtd->priv = this; mtd->dev.parent = &pdev->dev; mtd->name = DRIVER_NAME; diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 442eeaf09eba..78de37ddf88b 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -2243,7 +2243,6 @@ static int __init ns_init_module(void) return -ENOMEM; } nsmtd = nand_to_mtd(chip); - nsmtd->priv = (void *)chip; nand = (struct nandsim *)(chip + 1); chip->priv = (void *)nand; diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 3a7168e52007..0709ea9dd8ed 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -167,7 +167,6 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, chip->ecc.strength = 1; chip->priv = ndfc; - mtd->priv = chip; mtd->dev.parent = &ndfc->ofdev->dev; flash_np = of_get_next_child(node, NULL); diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 4dad170f6545..220ddfcf29f5 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -245,7 +245,6 @@ static int nuc900_nand_probe(struct platform_device *pdev) chip = &(nuc900_nand->chip); mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->dev.parent = &pdev->dev; spin_lock_init(&nuc900_nand->lock); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index f9d0b58323e3..e9cbbc63c566 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -1672,7 +1672,6 @@ static int omap_nand_probe(struct platform_device *pdev) info->ecc_opt = pdata->ecc_opt; nand_chip = &info->nand; mtd = nand_to_mtd(nand_chip); - mtd->priv = &info->nand; mtd->dev.parent = &pdev->dev; nand_chip->ecc.priv = NULL; nand_set_flash_node(nand_chip, pdata->of_node); diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 087a04024d6a..2c2be612448e 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -122,7 +122,6 @@ static int __init orion_nand_probe(struct platform_device *pdev) board = dev_get_platdata(&pdev->dev); } - mtd->priv = nc; mtd->dev.parent = &pdev->dev; nc->priv = board; diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 4dd298523e81..3ab53ca53cca 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -121,7 +121,6 @@ static int pasemi_nand_probe(struct platform_device *ofdev) pasemi_nand_mtd = nand_to_mtd(chip); /* Link the private data with the MTD structure */ - pasemi_nand_mtd->priv = chip; pasemi_nand_mtd->dev.parent = &ofdev->dev; chip->IO_ADDR_R = of_iomap(np, 0); diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 796eb7d54f2f..dc88a58d5cde 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -59,7 +59,6 @@ static int plat_nand_probe(struct platform_device *pdev) data->chip.priv = &data; nand_set_flash_node(&data->chip, pdev->dev.of_node); mtd = nand_to_mtd(&data->chip); - mtd->priv = &data->chip; mtd->dev.parent = &pdev->dev; data->chip.IO_ADDR_R = data->io_base; diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index c4d578809ea9..10704ae129fc 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1709,7 +1709,6 @@ static int alloc_nand_resource(struct platform_device *pdev) info->host[cs] = host; host->cs = cs; host->info_data = info; - mtd->priv = chip; mtd->dev.parent = &pdev->dev; /* FIXME: all chips use the same device tree partitions */ nand_set_flash_node(chip, np); diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 1ac8ef2ed2db..cb0bf09214d5 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -638,7 +638,6 @@ static int r852_register_nand_device(struct r852_device *dev) WARN_ON(dev->card_registred); - mtd->priv = dev->chip; mtd->dev.parent = &dev->pci_dev->dev; if (dev->readonly) diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index c074a491d087..bc94c5db01bf 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -788,7 +788,6 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, struct s3c2410_nand_set *set) { struct nand_chip *chip = &nmtd->chip; - struct mtd_info *mtd = nand_to_mtd(chip); void __iomem *regs = info->regs; chip->write_buf = s3c2410_nand_write_buf; @@ -834,7 +833,6 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, chip->IO_ADDR_R = chip->IO_ADDR_W; nmtd->info = info; - mtd->priv = chip; nmtd->set = set; #ifdef CONFIG_MTD_NAND_S3C2410_HWECC diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 0ec4b04b3536..c7126b75fb01 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -1123,7 +1123,6 @@ static int flctl_probe(struct platform_device *pdev) nand = &flctl->chip; flctl_mtd = nand_to_mtd(nand); nand_set_flash_node(nand, pdev->dev.of_node); - flctl_mtd->priv = nand; flctl_mtd->dev.parent = &pdev->dev; flctl->pdev = pdev; flctl->hwecc = pdata->has_hwecc; diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 4b649fbad66e..b7d1b55a160b 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -147,7 +147,6 @@ static int sharpsl_nand_probe(struct platform_device *pdev) /* Link the private data with the MTD structure */ mtd = nand_to_mtd(this); - mtd->priv = this; mtd->dev.parent = &pdev->dev; platform_set_drvdata(pdev, sharpsl); diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index 925761c240ca..d7e9d4df8c28 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -164,7 +164,6 @@ static int socrates_nand_probe(struct platform_device *ofdev) nand_chip->priv = host; /* link the private data structures */ nand_set_flash_node(nand_chip, ofdev->dev.of_node); - mtd->priv = nand_chip; mtd->name = "socrates_nand"; mtd->dev.parent = &ofdev->dev; diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index c29d659a747a..51e10a35fe08 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -1337,7 +1337,6 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, mtd = nand_to_mtd(nand); mtd->dev.parent = dev; - mtd->priv = nand; ret = nand_scan_ident(mtd, nsels, NULL); if (ret) diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index e7b82e11c795..08b30549ec0a 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -382,7 +382,6 @@ static int tmio_probe(struct platform_device *dev) platform_set_drvdata(dev, tmio); nand_chip = &tmio->chip; mtd = nand_to_mtd(nand_chip); - mtd->priv = nand_chip; mtd->name = "tmio-nand"; mtd->dev.parent = &dev->dev; diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index da7fcbd37f3a..27488ee44386 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -324,8 +324,6 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) mtd = nand_to_mtd(chip); mtd->dev.parent = &dev->dev; - mtd->priv = chip; - chip->read_byte = txx9ndfmc_read_byte; chip->read_buf = txx9ndfmc_read_buf; chip->write_buf = txx9ndfmc_write_buf; diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index 1bbb93a7b4e5..034420f313d5 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -679,7 +679,6 @@ static int vf610_nfc_probe(struct platform_device *pdev) chip = &nfc->chip; mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->owner = THIS_MODULE; mtd->dev.parent = nfc->dev; mtd->name = DRV_NAME; -- cgit v1.2.3 From 038a5380e3698615eea341f10f42b1fd74e54e1c Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:35 +0100 Subject: cris: nand: remove useless mtd->priv = chip assignments mtd_to_nand() now uses the container_of() approach to transform an mtd_info pointer into a nand_chip one. Drop useless mtd->priv assignments from NAND controller drivers. Signed-off-by: Boris Brezillon Acked-by: Jesper Nilsson Signed-off-by: Brian Norris --- arch/cris/arch-v32/drivers/mach-a3/nandflash.c | 3 --- arch/cris/arch-v32/drivers/mach-fs/nandflash.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c index ee74e45a5cf4..5aa3f5162310 100644 --- a/arch/cris/arch-v32/drivers/mach-a3/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-a3/nandflash.c @@ -149,9 +149,6 @@ struct mtd_info *__init crisv32_nand_flash_probe(void) this = &wrapper->chip; crisv32_mtd = nand_to_mtd(this); - /* Link the private data with the MTD structure */ - crisv32_mtd->priv = this; - /* Set address of NAND IO lines */ this->IO_ADDR_R = read_cs; this->IO_ADDR_W = write_cs; diff --git a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c index 56262973ed2b..a7c17b0f172a 100644 --- a/arch/cris/arch-v32/drivers/mach-fs/nandflash.c +++ b/arch/cris/arch-v32/drivers/mach-fs/nandflash.c @@ -140,9 +140,6 @@ struct mtd_info *__init crisv32_nand_flash_probe(void) bif_cfg.gated_csp1 = regk_bif_core_wr; REG_WR(bif_core, regi_bif_core, rw_grp3_cfg, bif_cfg); - /* Link the private data with the MTD structure */ - crisv32_mtd->priv = this; - /* Set address of NAND IO lines */ this->IO_ADDR_R = read_cs; this->IO_ADDR_W = write_cs; -- cgit v1.2.3 From f12d86afc5594c89492fb7c78fce07a4e94b2384 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:36 +0100 Subject: staging: mt29f_spinand: remove useless mtd->priv = chip assignment mtd_to_nand() now uses the container_of() approach to transform an mtd_info pointer into a nand_chip one. Drop useless mtd->priv assignments from NAND controller drivers. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/staging/mt29f_spinand/mt29f_spinand.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index 8171b741ff86..b7d429d45dab 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -907,7 +907,6 @@ static int spinand_probe(struct spi_device *spi_nand) dev_set_drvdata(&spi_nand->dev, mtd); - mtd->priv = chip; mtd->dev.parent = &spi_nand->dev; mtd->oobsize = 64; -- cgit v1.2.3 From 7194a29a9bf1e5abcda8b181bba771fbe0e95b6c Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:37 +0100 Subject: mtd: nand: simplify nand_dt_init() usage nand_dt_init() function requires 3 arguments where it actually needs one (dn and mtd can both be retrieved from chip). Drop these parameters. Testing for dn != NULL inside nand_dt_init() also helps simplifying the caller code. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nand_base.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5aec1545cd39..ae3fd2a8c2f5 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3937,11 +3937,17 @@ ident_done: return type; } -static int nand_dt_init(struct mtd_info *mtd, struct nand_chip *chip, - struct device_node *dn) +static int nand_dt_init(struct nand_chip *chip) { + struct device_node *dn = nand_get_flash_node(chip); int ecc_mode, ecc_strength, ecc_step; + if (!dn) + return 0; + + /* MTD can automatically handle DT partitions, etc. */ + mtd_set_of_node(nand_to_mtd(chip), dn); + if (of_get_nand_bus_width(dn) == 16) chip->options |= NAND_BUSWIDTH_16; @@ -3989,14 +3995,9 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, struct nand_flash_dev *type; int ret; - if (nand_get_flash_node(chip)) { - /* MTD can automatically handle DT partitions, etc. */ - mtd_set_of_node(mtd, nand_get_flash_node(chip)); - - ret = nand_dt_init(mtd, chip, nand_get_flash_node(chip)); - if (ret) - return ret; - } + ret = nand_dt_init(chip); + if (ret) + return ret; /* Set the default functions */ nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16); -- cgit v1.2.3 From 29574ede097438c560e8115caff9b6b8668730be Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:38 +0100 Subject: mtd: nand: kill the chip->flash_node field Now that the nand_chip struct directly embeds an mtd_info struct we can get rid of the ->flash_node field and forward set/get_flash_node requests to the MTD layer. As a side effect, we no longer need the mtd_set_of_node() call done in nand_dt_init(). Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/nand_base.c | 3 --- include/linux/mtd/nand.h | 7 ++----- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ae3fd2a8c2f5..8bb8ebd62aaa 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3945,9 +3945,6 @@ static int nand_dt_init(struct nand_chip *chip) if (!dn) return 0; - /* MTD can automatically handle DT partitions, etc. */ - mtd_set_of_node(nand_to_mtd(chip), dn); - if (of_get_nand_bus_width(dn) == 16) chip->options |= NAND_BUSWIDTH_16; diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9cb7ace6fb1f..2bee2e42ae2f 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -545,7 +545,6 @@ struct nand_buffers { * flash device * @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the * flash device. - * @flash_node: [BOARDSPECIFIC] device node describing this instance * @read_byte: [REPLACEABLE] read one byte from the chip * @read_word: [REPLACEABLE] read one word from the chip * @write_byte: [REPLACEABLE] write a single byte to the chip on the @@ -645,8 +644,6 @@ struct nand_chip { void __iomem *IO_ADDR_R; void __iomem *IO_ADDR_W; - struct device_node *flash_node; - uint8_t (*read_byte)(struct mtd_info *mtd); u16 (*read_word)(struct mtd_info *mtd); void (*write_byte)(struct mtd_info *mtd, uint8_t byte); @@ -724,12 +721,12 @@ struct nand_chip { static inline void nand_set_flash_node(struct nand_chip *chip, struct device_node *np) { - chip->flash_node = np; + mtd_set_of_node(&chip->mtd, np); } static inline struct device_node *nand_get_flash_node(struct nand_chip *chip) { - return chip->flash_node; + return mtd_get_of_node(&chip->mtd); } static inline struct nand_chip *mtd_to_nand(struct mtd_info *mtd) -- cgit v1.2.3 From 8142b47ef33c655a34e08efd46b65732fe190675 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Mon, 14 Dec 2015 16:13:31 +0100 Subject: mtd: nand: remove unused and buggy get_platform_nandchip() helper function Nobody uses the get_platform_nandchip() helper function which is supposed to return a pointer to a platform_nand_chip struct from an mtd_info pointer. Moreover, this function is buggy since the introduction of the plat_nand layer (chip->priv is now storing a pointer to an intermediate plat_nand_data structure allocated in plat_nand_probe(), and we have no way to retrieve a pointer to the provided platform_nand_chip struct from this plat_nand_data pointer). While we are at it, remove the useless (and buggy, since it's pointing to something stored on the stack) data->chip.priv assignment. Signed-off-by: Boris Brezillon Fixes: 711fdf627ce1 ("[MTD] [NAND] platform NAND driver: add driver") Cc: Vitaly Wool Signed-off-by: Brian Norris --- drivers/mtd/nand/plat_nand.c | 1 - include/linux/mtd/nand.h | 9 --------- 2 files changed, 10 deletions(-) diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index dc88a58d5cde..a0e26dea1424 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -56,7 +56,6 @@ static int plat_nand_probe(struct platform_device *pdev) if (IS_ERR(data->io_base)) return PTR_ERR(data->io_base); - data->chip.priv = &data; nand_set_flash_node(&data->chip, pdev->dev.of_node); mtd = nand_to_mtd(&data->chip); mtd->dev.parent = &pdev->dev; diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 2bee2e42ae2f..3e92be1d2d43 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -927,15 +927,6 @@ struct platform_nand_data { struct platform_nand_ctrl ctrl; }; -/* Some helpers to access the data structures */ -static inline -struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - - return chip->priv; -} - /* return the supported features. */ static inline int onfi_feature(struct nand_chip *chip) { -- cgit v1.2.3 From 80e1ca692107b0bc5b088fd9c4a20726fb1a66a2 Mon Sep 17 00:00:00 2001 From: Bayi Cheng Date: Fri, 18 Dec 2015 11:02:40 +0800 Subject: mtd: mtk-nor: adjust sequence of trigger function and assignment function Move write data register before excute command to avoid missing first byte write to nor flash Signed-off-by: Bayi Cheng Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/mtk-quadspi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/mtk-quadspi.c b/drivers/mtd/spi-nor/mtk-quadspi.c index e1dd9fd16fbe..d5f850d035bb 100644 --- a/drivers/mtd/spi-nor/mtk-quadspi.c +++ b/drivers/mtd/spi-nor/mtk-quadspi.c @@ -272,10 +272,10 @@ static int mt8173_nor_write_single_byte(struct mt8173_nor *mt8173_nor, mt8173_nor_set_addr(mt8173_nor, addr); for (i = 0; i < length; i++) { + writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG); ret = mt8173_nor_execute_cmd(mt8173_nor, MTK_NOR_PIO_WR_CMD); if (ret < 0) return ret; - writeb(*data++, mt8173_nor->base + MTK_NOR_WDATA_REG); } return 0; } -- cgit v1.2.3 From fdd9d27c8a47ea81daeaddfe6c0156ae7cf68096 Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Wed, 10 Jun 2015 18:31:32 +0200 Subject: mtd: cfi_cmdset_0002: use swap() in cfi_cmdset_0002() Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick Signed-off-by: Brian Norris --- drivers/mtd/chips/cfi_cmdset_0002.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index c3624eb571d1..9dca881bb378 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -615,11 +615,9 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) for (i=0; icfiq->NumEraseRegions / 2; i++) { int j = (cfi->cfiq->NumEraseRegions-1)-i; - __u32 swap; - swap = cfi->cfiq->EraseRegionInfo[i]; - cfi->cfiq->EraseRegionInfo[i] = cfi->cfiq->EraseRegionInfo[j]; - cfi->cfiq->EraseRegionInfo[j] = swap; + swap(cfi->cfiq->EraseRegionInfo[i], + cfi->cfiq->EraseRegionInfo[j]); } } /* Set the default CFI lock/unlock addresses */ -- cgit v1.2.3 From 6166a76f5ef7619faa28b38d7817e5fe0e509942 Mon Sep 17 00:00:00 2001 From: Fabian Frederick Date: Wed, 10 Jun 2015 18:31:06 +0200 Subject: mtd: ftl: use swap() in copy_erase_unit() Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick Signed-off-by: Brian Norris --- drivers/mtd/ftl.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index dabf08450d0b..9fb3b0dcdac2 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -571,12 +571,8 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit, /* Update the maps and usage stats*/ - i = xfer->EraseCount; - xfer->EraseCount = eun->EraseCount; - eun->EraseCount = i; - i = xfer->Offset; - xfer->Offset = eun->Offset; - eun->Offset = i; + swap(xfer->EraseCount, eun->EraseCount); + swap(xfer->Offset, eun->Offset); part->FreeTotal -= eun->Free; part->FreeTotal += free; eun->Free = free; -- cgit v1.2.3 From 44991b3d19cd71eabe68019ae7cb91df0c929614 Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Wed, 9 Apr 2014 11:13:24 +0200 Subject: mtd: nand: Disable subpage writes for drivers without ecc->hwctl nand_write_subpage_hwecc causes a crash if the driver did not register ecc->hwctl or ecc->calculate. Fix this by disabling subpage writes if ecc->hwctl or ecc->calculate is not provided by the driver. This behavior was introduced in commit 837a6ba4f3b6d23026674e6af6b6849a4634fff9 "mtd: nand: subpage write support for hardware based ECC schemes". This fixes a crash with fsl_elbc_nand and maybe others: Unable to handle kernel paging request for instruction fetch Faulting instruction address: 0x00000000 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=2 P1020 RDB Modules linked in: ath9k ath9k_common pppoe ppp_async option iptable_nat ath9k_hw ath usb_wwan pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv4 mac80211 ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_quota xt_policy xt_pkttype xt_owner xt_nat xt_multiport xt_mh CPU: 1 PID: 2161 Comm: ubiformat Not tainted 3.10.26 #6 task: efbc2700 ti: c7950000 task.ti: c7950000 NIP: 00000000 LR: c01a495c CTR: 00000000 REGS: c7951cb0 TRAP: 0400 Not tainted (3.10.26) MSR: 00029000 CR: 24002028 XER: 00000000 GPR00: c01a4b6c c7951d60 efbc2700 ef84b000 00000001 00000000 000001ff c7800500 GPR08: 00000000 00000000 efae5e40 c01a4ae4 24002022 10023418 c7951e5c c7800500 GPR16: c017b6a8 00000000 0000003f c053404c 00000000 00000004 00000000 00000003 GPR24: 00000010 00000200 ef84b000 c7800d00 c7800000 c7800500 ef84b1c8 00000000 NIP [00000000] (null) LR [c01a495c] nand_write_subpage_hwecc+0x74/0x174 Call Trace: [c7951d60] [c7951d64] 0xc7951d64 (unreliable) [c7951da0] [c01a4b6c] nand_write_page+0x88/0x198 [c7951dd0] [c01a5f7c] nand_do_write_ops+0x2f4/0x39c [c7951e40] [c01a61e0] nand_write+0x58/0x84 [c7951e80] [c019e29c] mtdchar_write+0x1dc/0x28c [c7951ef0] [c00aba84] vfs_write+0xcc/0x1ac [c7951f10] [c00ac04c] SyS_write+0x4c/0x90 [c7951f40] [c000cd84] ret_from_syscall+0x0/0x3c --- Exception: c01 at 0x48050ed8 LR = 0x100071b8 Instruction dump: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX ---[ end trace 161d3c65a2a15cb8 ]--- Kernel panic - not syncing: Fatal exception [Brian: editorial note - we've applied a previous fix for the driver in question (fsl_elbc_nand) long ago: commit f034d87def51 ("mtd: eLBC NAND: fix subpage write support") but this still makes sense, and it could solve issues on some other unforseen driver.] Cc: Pekon Gupta Cc: Artem Bityutskiy Cc: David Woodhouse Signed-off-by: Helmut Schaa Signed-off-by: Brian Norris --- drivers/mtd/nand/nand_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 8bb8ebd62aaa..928081bbdafd 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -4167,7 +4167,7 @@ int nand_scan_tail(struct mtd_info *mtd) ecc->write_oob = nand_write_oob_std; if (!ecc->read_subpage) ecc->read_subpage = nand_read_subpage; - if (!ecc->write_subpage) + if (!ecc->write_subpage && ecc->hwctl && ecc->calculate) ecc->write_subpage = nand_write_subpage_hwecc; case NAND_ECC_HW_SYNDROME: -- cgit v1.2.3 From 0ed6ca3a22f871fdb7335194f6488d14b2dad96a Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Wed, 16 Dec 2015 14:00:09 +0900 Subject: mtd: denali: make MTD_NAND_DENALI_DT dependent on OF The build passes even if CONFIG_OF is undefined, but it makes sense to let it depend on OF. Signed-off-by: Masahiro Yamada Signed-off-by: Brian Norris --- drivers/mtd/nand/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 6c71f623a932..95b8d2b8a7af 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -55,7 +55,7 @@ config MTD_NAND_DENALI_PCI config MTD_NAND_DENALI_DT tristate "Support Denali NAND controller as a DT device" select MTD_NAND_DENALI - depends on HAS_DMA && HAVE_CLK + depends on HAS_DMA && HAVE_CLK && OF help Enable the driver for NAND flash on platforms using a Denali NAND controller as a DT device. -- cgit v1.2.3 From 1873315fb156cbc8e46f28e8b128f17ff6c31728 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 8 Dec 2015 16:38:12 +0100 Subject: mtd: sh_flctl: pass FIFO as physical address By convention, the FIFO address we pass using dmaengine_slave_config is a physical address in the form that is understood by the DMA engine, as a dma_addr_t, phys_addr_t or resource_size_t. The sh_flctl driver however passes a virtual __iomem address that gets cast to dma_addr_t in the slave driver. This happens to work on shmobile because that platform sets up an identity mapping for its MMIO regions, but such code is not portable to other platforms, and prevents us from ever changing the platform mapping or reusing the driver on other architectures like ARM64 that might not have the mapping. We also get a warning about a type mismatch for the case that dma_addr_t is wider than a pointer, i.e. when CONFIG_LPAE is set: drivers/mtd/nand/sh_flctl.c: In function 'flctl_setup_dma': drivers/mtd/nand/sh_flctl.c:163:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] cfg.dst_addr = (dma_addr_t)FLDTFIFO(flctl); This changes the driver to instead pass the physical address of the FIFO that is extracted from the MMIO resource, making the code more portable and avoiding the warning. Signed-off-by: Arnd Bergmann Signed-off-by: Brian Norris --- drivers/mtd/nand/sh_flctl.c | 5 +++-- include/linux/mtd/sh_flctl.h | 1 + 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index c7126b75fb01..4814402902f9 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -160,7 +160,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl) memset(&cfg, 0, sizeof(cfg)); cfg.direction = DMA_MEM_TO_DEV; - cfg.dst_addr = (dma_addr_t)FLDTFIFO(flctl); + cfg.dst_addr = flctl->fifo; cfg.src_addr = 0; ret = dmaengine_slave_config(flctl->chan_fifo0_tx, &cfg); if (ret < 0) @@ -176,7 +176,7 @@ static void flctl_setup_dma(struct sh_flctl *flctl) cfg.direction = DMA_DEV_TO_MEM; cfg.dst_addr = 0; - cfg.src_addr = (dma_addr_t)FLDTFIFO(flctl); + cfg.src_addr = flctl->fifo; ret = dmaengine_slave_config(flctl->chan_fifo0_rx, &cfg); if (ret < 0) goto err; @@ -1095,6 +1095,7 @@ static int flctl_probe(struct platform_device *pdev) flctl->reg = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(flctl->reg)) return PTR_ERR(flctl->reg); + flctl->fifo = res->start + 0x24; /* FLDTFIFO */ irq = platform_get_irq(pdev, 0); if (irq < 0) { diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h index 76e3e88bedfe..2251add65fa7 100644 --- a/include/linux/mtd/sh_flctl.h +++ b/include/linux/mtd/sh_flctl.h @@ -147,6 +147,7 @@ struct sh_flctl { struct platform_device *pdev; struct dev_pm_qos_request pm_qos; void __iomem *reg; + resource_size_t fifo; uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ int read_bytes; -- cgit v1.2.3 From 887e9d3a1f3e93a1c64294649c0dd301035a7892 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 4 Jan 2016 10:32:54 -0800 Subject: mtd: nand: fix for drop unnecessary partition parser data From Stephen: Hi Brian, After merging the l2-mtd tree, today's linux-next build (powerpc ppc44x_defconfig) failed like this: drivers/mtd/nand/ndfc.c: In function 'ndfc_chip_init': drivers/mtd/nand/ndfc.c:177:2: error: 'ppdata' undeclared (first use in this function) ppdata.of_node = flash_np; ^ Caused by commit a61ae81a1907 ("mtd: nand: drop unnecessary partition parser data") The flash node is already correctly assigned using the new helper (nand_set_flash_node()) so the correct fix is indeed to simply drop this line. Fixes: a61ae81a1907 ("mtd: nand: drop unnecessary partition parser data") Signed-off-by: Stephen Rothwell Signed-off-by: Brian Norris --- drivers/mtd/nand/ndfc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 0709ea9dd8ed..7d72f4fe06a1 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -174,7 +174,6 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, return -ENODEV; nand_set_flash_node(chip, flash_np); - ppdata.of_node = flash_np; mtd->name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev), flash_np->name); if (!mtd->name) { -- cgit v1.2.3 From f7a8e38f07a17be90758559fe66fe7337096053f Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 5 Jan 2016 10:39:45 -0800 Subject: mtd: nand: assign reasonable default name for NAND drivers Commits such as commit 853f1c58c4b2 ("mtd: nand: omap2: show parent device structure in sysfs") attempt to rely on the core MTD code to set the MTD name based on the parent device. However, nand_base tries to set a different default name according to the flash name (e.g., extracted from the ONFI parameter page), which means NAND drivers will never make use of the MTD defaults. This is not the intention of commit 853f1c58c4b2. This results in problems when trying to use the cmdline partition parser, since the MTD name is different than expected. Let's fix this by providing a default NAND name, where possible. Note that this is not really a great default name in the long run, since this means that if there are multiple MTDs attached to the same controller device, they will have the same name. But that is an existing issue and requires future work on a better controller vs. flash chip abstraction to fix properly. Fixes: 853f1c58c4b2 ("mtd: nand: omap2: show parent device structure in sysfs") Reported-by: Heiko Schocher Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon Tested-by: Heiko Schocher Cc: Heiko Schocher Cc: Frans Klaver Cc: --- drivers/mtd/nand/nand_base.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 928081bbdafd..50514f2501bb 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3996,6 +3996,9 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, if (ret) return ret; + if (!mtd->name && mtd->dev.parent) + mtd->name = dev_name(mtd->dev.parent); + /* Set the default functions */ nand_set_defaults(chip, chip->options & NAND_BUSWIDTH_16); -- cgit v1.2.3 From 43584c1d42acf54464907773b0b8b7596d7b0a29 Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Fri, 1 Jan 2016 22:06:27 +0800 Subject: jffs2: use to_delayed_work Use to_delayed_work() instead of open-coding it. Signed-off-by: Geliang Tang Signed-off-by: Brian Norris --- fs/jffs2/wbuf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index f3a4857ff071..5a3da3f52908 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -1153,7 +1153,7 @@ static struct jffs2_sb_info *work_to_sb(struct work_struct *work) { struct delayed_work *dwork; - dwork = container_of(work, struct delayed_work, work); + dwork = to_delayed_work(work); return container_of(dwork, struct jffs2_sb_info, wbuf_dwork); } -- cgit v1.2.3 From 6e75632ac34d2f63ab586880f7e9747bd9b708a6 Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire Date: Thu, 31 Dec 2015 16:21:22 +0100 Subject: mtd: tests: consolidate kmalloc/memset 0 call to kzalloc This is an API consolidation only. The use of kmalloc + memset to 0 is equivalent to kzalloc. Signed-off-by: Nicholas Mc Guire Signed-off-by: Brian Norris --- drivers/mtd/tests/pagetest.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c index ba1890d5632c..ff1e0565b020 100644 --- a/drivers/mtd/tests/pagetest.c +++ b/drivers/mtd/tests/pagetest.c @@ -127,13 +127,12 @@ static int crosstest(void) unsigned char *pp1, *pp2, *pp3, *pp4; pr_info("crosstest\n"); - pp1 = kmalloc(pgsize * 4, GFP_KERNEL); + pp1 = kzalloc(pgsize * 4, GFP_KERNEL); if (!pp1) return -ENOMEM; pp2 = pp1 + pgsize; pp3 = pp2 + pgsize; pp4 = pp3 + pgsize; - memset(pp1, 0, pgsize * 4); addr0 = 0; for (i = 0; i < ebcnt && bbt[i]; ++i) -- cgit v1.2.3 From 32321e950d8a237d7e8f3a9b76220007dfa87544 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ezequiel=20Garc=C3=ADa?= Date: Mon, 28 Dec 2015 17:54:51 -0300 Subject: mtd: spi-nor: wait until lock/unlock operations are ready On Micron and Numonyx devices, the status register write command (WRSR), raises a work-in-progress bit (WIP) on the status register. The datasheets for these devices specify that while the status register write is in progress, the status register WIP bit can still be read to check the end of the operation. This commit adds a wait_till_ready call on lock/unlock operations, which is required for Micron and Numonyx but should be harmless for others. This is needed to prevent applications from issuing erase or program operations before the unlock operation is completed. Reported-by: Stas Sergeev Signed-off-by: Ezequiel Garcia Signed-off-by: Brian Norris --- drivers/mtd/spi-nor/spi-nor.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index f8f36d47575f..ed0c19c558b5 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -481,6 +481,7 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len) int status_old, status_new; u8 mask = SR_BP2 | SR_BP1 | SR_BP0; u8 shift = ffs(mask) - 1, pow, val; + int ret; status_old = read_sr(nor); if (status_old < 0) @@ -519,7 +520,10 @@ static int stm_lock(struct spi_nor *nor, loff_t ofs, uint64_t len) return -EINVAL; write_enable(nor); - return write_sr(nor, status_new); + ret = write_sr(nor, status_new); + if (ret) + return ret; + return spi_nor_wait_till_ready(nor); } /* @@ -533,6 +537,7 @@ static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len) int status_old, status_new; u8 mask = SR_BP2 | SR_BP1 | SR_BP0; u8 shift = ffs(mask) - 1, pow, val; + int ret; status_old = read_sr(nor); if (status_old < 0) @@ -569,7 +574,10 @@ static int stm_unlock(struct spi_nor *nor, loff_t ofs, uint64_t len) return -EINVAL; write_enable(nor); - return write_sr(nor, status_new); + ret = write_sr(nor, status_new); + if (ret) + return ret; + return spi_nor_wait_till_ready(nor); } /* -- cgit v1.2.3 From 33853ebd746f0e6aa262745376fde5d4995e0a87 Mon Sep 17 00:00:00 2001 From: Insu Yun Date: Tue, 29 Dec 2015 13:45:09 -0500 Subject: mtd: cfi_cmdset_0001: fixing memory leak and handling failed kmalloc kmalloc needs to be handled when failing in memory pressure. Also, it has memory leak in error routine. Signed-off-by: Insu Yun Signed-off-by: Brian Norris --- drivers/mtd/chips/cfi_cmdset_0001.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 286b97a304cf..5e1b68cbcd0a 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -596,7 +596,7 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd) mtd->size = devsize * cfi->numchips; mtd->numeraseregions = cfi->cfiq->NumEraseRegions * cfi->numchips; - mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info) + mtd->eraseregions = kzalloc(sizeof(struct mtd_erase_region_info) * mtd->numeraseregions, GFP_KERNEL); if (!mtd->eraseregions) goto setup_err; @@ -614,6 +614,8 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd) mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].erasesize = ersize; mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].numblocks = ernum; mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap = kmalloc(ernum / 8 + 1, GFP_KERNEL); + if (!mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap) + goto setup_err; } offset += (ersize * ernum); } @@ -650,6 +652,10 @@ static struct mtd_info *cfi_intelext_setup(struct mtd_info *mtd) return mtd; setup_err: + if (mtd->eraseregions) + for (i=0; icfiq->NumEraseRegions; i++) + for (j=0; jnumchips; j++) + kfree(mtd->eraseregions[(j*cfi->cfiq->NumEraseRegions)+i].lockmap); kfree(mtd->eraseregions); kfree(mtd); kfree(cfi->cmdset_priv); -- cgit v1.2.3 From 6f357de854a6dfb9ce0d5d65f3971cf3d0a4af6f Mon Sep 17 00:00:00 2001 From: Alex Smith Date: Mon, 4 Jan 2016 12:34:42 +0000 Subject: doc: dt: mtd: new binding for jz4780-{nand,bch} Add DT bindings for NAND devices connected to the NEMC on JZ4780 SoCs, as well as the hardware BCH controller, used by the jz4780_{nand,bch} drivers. Signed-off-by: Alex Smith Cc: Zubair Lutfullah Kakakhel Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Harvey Hunt Acked-by: Rob Herring Reviewed-by: Boris Brezillon Signed-off-by: Brian Norris --- .../bindings/mtd/ingenic,jz4780-nand.txt | 86 ++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt diff --git a/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt new file mode 100644 index 000000000000..29ea5853ca91 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/ingenic,jz4780-nand.txt @@ -0,0 +1,86 @@ +* Ingenic JZ4780 NAND/BCH + +This file documents the device tree bindings for NAND flash devices on the +JZ4780. NAND devices are connected to the NEMC controller (described in +memory-controllers/ingenic,jz4780-nemc.txt), and thus NAND device nodes must +be children of the NEMC node. + +Required NAND controller device properties: +- compatible: Should be set to "ingenic,jz4780-nand". +- reg: For each bank with a NAND chip attached, should specify a bank number, + an offset of 0 and a size of 0x1000000 (i.e. the whole NEMC bank). + +Optional NAND controller device properties: +- ingenic,bch-controller: To make use of the hardware BCH controller, this + property must contain a phandle for the BCH controller node. The required + properties for this node are described below. If this is not specified, + software BCH will be used instead. + +Optional children nodes: +- Individual NAND chips are children of the NAND controller node. + +Required children node properties: +- reg: An integer ranging from 1 to 6 representing the CS line to use. + +Optional children node properties: +- nand-ecc-step-size: ECC block size in bytes. +- nand-ecc-strength: ECC strength (max number of correctable bits). +- nand-ecc-mode: String, operation mode of the NAND ecc mode. "hw" by default +- nand-on-flash-bbt: boolean to enable on flash bbt option, if not present false +- rb-gpios: GPIO specifier for the busy pin. +- wp-gpios: GPIO specifier for the write protect pin. + +Optional child node of NAND chip nodes: +- partitions: see Documentation/devicetree/bindings/mtd/partition.txt + +Example: + +nemc: nemc@13410000 { + ... + + nandc: nand-controller@1 { + compatible = "ingenic,jz4780-nand"; + reg = <1 0 0x1000000>; /* Bank 1 */ + + #address-cells = <1>; + #size-cells = <0>; + + ingenic,bch-controller = <&bch>; + + nand@1 { + reg = <1>; + + nand-ecc-step-size = <1024>; + nand-ecc-strength = <24>; + nand-ecc-mode = "hw"; + nand-on-flash-bbt; + + rb-gpios = <&gpa 20 GPIO_ACTIVE_LOW>; + wp-gpios = <&gpf 22 GPIO_ACTIVE_LOW>; + + partitions { + #address-cells = <2>; + #size-cells = <2>; + ... + } + }; + }; +}; + +The BCH controller is a separate SoC component used for error correction on +NAND devices. The following is a description of the device properties for a +BCH controller. + +Required BCH properties: +- compatible: Should be set to "ingenic,jz4780-bch". +- reg: Should specify the BCH controller registers location and length. +- clocks: Clock for the BCH controller. + +Example: + +bch: bch@134d0000 { + compatible = "ingenic,jz4780-bch"; + reg = <0x134d0000 0x10000>; + + clocks = <&cgu JZ4780_CLK_BCH>; +}; -- cgit v1.2.3 From 6e9411923b8f4c0e568cbae0f35b7ee4eb989914 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Wed, 30 Dec 2015 20:32:03 +0100 Subject: mtd: nand: return consistent error codes in ecc.correct() implementations The error code returned by the ecc.correct() are not consistent over the all implementations. Document the expected behavior in include/linux/mtd/nand.h and fix offending implementations. [Brian: this looks like a bugfix for the ECC reporting in the bf5xx_nand driver, but we haven't seen any testing results for it] Signed-off-by: Boris Brezillon Tested-by: Franklin S Cooper Jr. Signed-off-by: Brian Norris --- drivers/mtd/nand/atmel_nand.c | 2 +- drivers/mtd/nand/bf5xx_nand.c | 20 ++++++++++++++------ drivers/mtd/nand/davinci_nand.c | 6 +++--- drivers/mtd/nand/jz4740_nand.c | 4 ++-- drivers/mtd/nand/mxc_nand.c | 4 ++-- drivers/mtd/nand/nand_bch.c | 2 +- drivers/mtd/nand/nand_ecc.c | 2 +- drivers/mtd/nand/omap2.c | 6 +++--- drivers/mtd/nand/r852.c | 4 ++-- include/linux/mtd/nand.h | 8 +++++++- include/linux/mtd/nand_bch.h | 2 +- 11 files changed, 37 insertions(+), 23 deletions(-) diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 18c4e14ec29f..b216bf521349 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -1445,7 +1445,7 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, * We can't correct so many errors */ dev_dbg(host->dev, "atmel_nand : multiple errors detected." " Unable to correct.\n"); - return -EIO; + return -EBADMSG; } /* if there's a single bit error : we can correct it */ diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 9514e136542f..89d9414c5593 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -252,7 +252,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat, */ if (hweight32(syndrome[0]) == 1) { dev_err(info->device, "ECC data was incorrect!\n"); - return 1; + return -EBADMSG; } syndrome[1] = (calced & 0x7FF) ^ (stored & 0x7FF); @@ -285,7 +285,7 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat, data = data ^ (0x1 << failing_bit); *(dat + failing_byte) = data; - return 0; + return 1; } /* @@ -298,26 +298,34 @@ static int bf5xx_nand_correct_data_256(struct mtd_info *mtd, u_char *dat, dev_err(info->device, "Please discard data, mark bad block\n"); - return 1; + return -EBADMSG; } static int bf5xx_nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { struct nand_chip *chip = mtd_to_nand(mtd); - int ret; + int ret, bitflips = 0; ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc); + if (ret < 0) + return ret; + + bitflips = ret; /* If ecc size is 512, correct second 256 bytes */ if (chip->ecc.size == 512) { dat += 256; read_ecc += 3; calc_ecc += 3; - ret |= bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc); + ret = bf5xx_nand_correct_data_256(mtd, dat, read_ecc, calc_ecc); + if (ret < 0) + return ret; + + bitflips += ret; } - return ret; + return bitflips; } static void bf5xx_nand_enable_hwecc(struct mtd_info *mtd, int mode) diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 3b49fe86625d..ddb73c331936 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -207,7 +207,7 @@ static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat, dat[diff >> (12 + 3)] ^= BIT((diff >> 12) & 7); return 1; } else { - return -1; + return -EBADMSG; } } else if (!(diff & (diff - 1))) { /* Single bit ECC error in the ECC itself, @@ -215,7 +215,7 @@ static int nand_davinci_correct_1bit(struct mtd_info *mtd, u_char *dat, return 1; } else { /* Uncorrectable error */ - return -1; + return -EBADMSG; } } @@ -391,7 +391,7 @@ compare: return 0; case 1: /* five or more errors detected */ davinci_nand_readl(info, NAND_ERR_ERRVAL1_OFFSET); - return -EIO; + return -EBADMSG; case 2: /* error addresses computed */ case 3: num_errors = 1 + ((fsr >> 16) & 0x03); diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index a2363d33cecc..adccae3da120 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -254,7 +254,7 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat, } while (!(status & JZ_NAND_STATUS_DEC_FINISH) && --timeout); if (timeout == 0) - return -1; + return -ETIMEDOUT; reg = readl(nand->base + JZ_REG_NAND_ECC_CTRL); reg &= ~JZ_NAND_ECC_CTRL_ENABLE; @@ -262,7 +262,7 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat, if (status & JZ_NAND_STATUS_ERROR) { if (status & JZ_NAND_STATUS_UNCOR_ERROR) - return -1; + return -EBADMSG; error_count = (status & JZ_NAND_STATUS_ERR_COUNT) >> 29; diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 95400992c3e9..66e56bb22c0f 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -674,7 +674,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat, if (((ecc_status & 0x3) == 2) || ((ecc_status >> 2) == 2)) { pr_debug("MXC_NAND: HWECC uncorrectable 2-bit ECC error\n"); - return -1; + return -EBADMSG; } return 0; @@ -701,7 +701,7 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat, err = ecc_stat & ecc_bit_mask; if (err > err_limit) { printk(KERN_WARNING "UnCorrectable RS-ECC Error\n"); - return -1; + return -EBADMSG; } else { ret += err; } diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c index e5758d885943..a87c1b628dfc 100644 --- a/drivers/mtd/nand/nand_bch.c +++ b/drivers/mtd/nand/nand_bch.c @@ -98,7 +98,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, } } else if (count < 0) { printk(KERN_ERR "ecc unrecoverable error\n"); - count = -1; + count = -EBADMSG; } return count; } diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index e6129851bfd8..d1770b066396 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -507,7 +507,7 @@ int __nand_correct_data(unsigned char *buf, return 1; /* error in ECC data; no action needed */ pr_err("%s: uncorrectable ECC error\n", __func__); - return -1; + return -EBADMSG; } EXPORT_SYMBOL(__nand_correct_data); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index e9cbbc63c566..c553f78ab83f 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -826,12 +826,12 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ case 1: /* Uncorrectable error */ pr_debug("ECC UNCORRECTED_ERROR 1\n"); - return -1; + return -EBADMSG; case 11: /* UN-Correctable error */ pr_debug("ECC UNCORRECTED_ERROR B\n"); - return -1; + return -EBADMSG; case 12: /* Correctable error */ @@ -861,7 +861,7 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ return 0; } pr_debug("UNCORRECTED_ERROR default\n"); - return -1; + return -EBADMSG; } } diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index cb0bf09214d5..5b15f2faee38 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -477,7 +477,7 @@ static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat, if (dev->dma_error) { dev->dma_error = 0; - return -1; + return -EIO; } r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS); @@ -491,7 +491,7 @@ static int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat, /* ecc uncorrectable error */ if (ecc_status & R852_ECC_FAIL) { dbg("ecc: unrecoverable error, in half %d", i); - error = -1; + error = -EBADMSG; goto exit; } diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 3e92be1d2d43..518958115182 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -456,7 +456,13 @@ struct nand_hw_control { * @hwctl: function to control hardware ECC generator. Must only * be provided if an hardware ECC is available * @calculate: function for ECC calculation or readback from ECC hardware - * @correct: function for ECC correction, matching to ECC generator (sw/hw) + * @correct: function for ECC correction, matching to ECC generator (sw/hw). + * Should return a positive number representing the number of + * corrected bitflips, -EBADMSG if the number of bitflips exceed + * ECC strength, or any other error code if the error is not + * directly related to correction. + * If -EBADMSG is returned the input buffers should be left + * untouched. * @read_page_raw: function to read a raw page without ECC. This function * should hide the specific layout used by the ECC * controller and always return contiguous in-band and diff --git a/include/linux/mtd/nand_bch.h b/include/linux/mtd/nand_bch.h index 74acf5367556..fb0bc3420a10 100644 --- a/include/linux/mtd/nand_bch.h +++ b/include/linux/mtd/nand_bch.h @@ -55,7 +55,7 @@ static inline int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, unsigned char *read_ecc, unsigned char *calc_ecc) { - return -1; + return -ENOTSUPP; } static inline struct nand_bch_control * -- cgit v1.2.3 From 40cbe6eee97b706f27bcc4c6aa1018bbe4f1e577 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Wed, 30 Dec 2015 20:32:04 +0100 Subject: mtd: nand: use nand_check_erased_ecc_chunk in default ECC read functions The default NAND read functions are relying on the underlying controller driver to correct bitflips, but some of those controllers cannot properly fix bitflips in erased pages. Check for bitflips in erased pages in default core functions if the driver delegated the this check by setting the NAND_ECC_GENERIC_ERASED_CHECK flag. Signed-off-by: Boris Brezillon Tested-by: Franklin S Cooper Jr. Signed-off-by: Brian Norris --- drivers/mtd/nand/nand_base.c | 53 ++++++++++++++++++++++++++++++++++++++------ include/linux/mtd/nand.h | 10 +++++++++ 2 files changed, 56 insertions(+), 7 deletions(-) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 50514f2501bb..f2c8ff398d6c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1426,6 +1426,16 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, stat = chip->ecc.correct(mtd, p, &chip->buffers->ecccode[i], &chip->buffers->ecccalc[i]); + if (stat == -EBADMSG && + (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) { + /* check for empty pages with bitflips */ + stat = nand_check_erased_ecc_chunk(p, chip->ecc.size, + &chip->buffers->ecccode[i], + chip->ecc.bytes, + NULL, 0, + chip->ecc.strength); + } + if (stat < 0) { mtd->ecc_stats.failed++; } else { @@ -1475,6 +1485,15 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, int stat; stat = chip->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]); + if (stat == -EBADMSG && + (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) { + /* check for empty pages with bitflips */ + stat = nand_check_erased_ecc_chunk(p, eccsize, + &ecc_code[i], eccbytes, + NULL, 0, + chip->ecc.strength); + } + if (stat < 0) { mtd->ecc_stats.failed++; } else { @@ -1527,6 +1546,15 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, chip->ecc.calculate(mtd, p, &ecc_calc[i]); stat = chip->ecc.correct(mtd, p, &ecc_code[i], NULL); + if (stat == -EBADMSG && + (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) { + /* check for empty pages with bitflips */ + stat = nand_check_erased_ecc_chunk(p, eccsize, + &ecc_code[i], eccbytes, + NULL, 0, + chip->ecc.strength); + } + if (stat < 0) { mtd->ecc_stats.failed++; } else { @@ -1554,6 +1582,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, int i, eccsize = chip->ecc.size; int eccbytes = chip->ecc.bytes; int eccsteps = chip->ecc.steps; + int eccpadbytes = eccbytes + chip->ecc.prepad + chip->ecc.postpad; uint8_t *p = buf; uint8_t *oob = chip->oob_poi; unsigned int max_bitflips = 0; @@ -1573,19 +1602,29 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, chip->read_buf(mtd, oob, eccbytes); stat = chip->ecc.correct(mtd, p, oob, NULL); - if (stat < 0) { - mtd->ecc_stats.failed++; - } else { - mtd->ecc_stats.corrected += stat; - max_bitflips = max_t(unsigned int, max_bitflips, stat); - } - oob += eccbytes; if (chip->ecc.postpad) { chip->read_buf(mtd, oob, chip->ecc.postpad); oob += chip->ecc.postpad; } + + if (stat == -EBADMSG && + (chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) { + /* check for empty pages with bitflips */ + stat = nand_check_erased_ecc_chunk(p, chip->ecc.size, + oob - eccpadbytes, + eccpadbytes, + NULL, 0, + chip->ecc.strength); + } + + if (stat < 0) { + mtd->ecc_stats.failed++; + } else { + mtd->ecc_stats.corrected += stat; + max_bitflips = max_t(unsigned int, max_bitflips, stat); + } } /* Calculate remaining oob bytes */ diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 518958115182..86487dbe7358 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -129,6 +129,14 @@ typedef enum { /* Enable Hardware ECC before syndrome is read back from flash */ #define NAND_ECC_READSYN 2 +/* + * Enable generic NAND 'page erased' check. This check is only done when + * ecc.correct() returns -EBADMSG. + * Set this flag if your implementation does not fix bitflips in erased + * pages and you want to rely on the default implementation. + */ +#define NAND_ECC_GENERIC_ERASED_CHECK BIT(0) + /* Bit mask for flags passed to do_nand_read_ecc */ #define NAND_GET_DEVICE 0x80 @@ -451,6 +459,7 @@ struct nand_hw_control { * @total: total number of ECC bytes per page * @prepad: padding information for syndrome based ECC generators * @postpad: padding information for syndrome based ECC generators + * @options: ECC specific options (see NAND_ECC_XXX flags defined above) * @layout: ECC layout control struct pointer * @priv: pointer to private ECC control data * @hwctl: function to control hardware ECC generator. Must only @@ -500,6 +509,7 @@ struct nand_ecc_ctrl { int strength; int prepad; int postpad; + unsigned int options; struct nand_ecclayout *layout; void *priv; void (*hwctl)(struct mtd_info *mtd, int mode); -- cgit v1.2.3 From bc29c95d2e51305ec611f29cc703c2fa0d2086de Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Wed, 30 Dec 2015 20:32:05 +0100 Subject: mtd: nand: davinci: remove custom 'erased check' implementation The davinci driver is manually checking for 'erased pages' while correcting ECC bytes. This logic can now done by the core infrastructure, and can thus be removed from this driver. Signed-off-by: Boris Brezillon Tested-by: Franklin S Cooper Jr. Signed-off-by: Brian Norris --- drivers/mtd/nand/davinci_nand.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index ddb73c331936..8cb821b6686e 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -317,14 +317,6 @@ static int nand_davinci_correct_4bit(struct mtd_info *mtd, unsigned num_errors, corrected; unsigned long timeo; - /* All bytes 0xff? It's an erased page; ignore its ECC. */ - for (i = 0; i < 10; i++) { - if (ecc_code[i] != 0xff) - goto compare; - } - return 0; - -compare: /* Unpack ten bytes into eight 10 bit values. We know we're * little-endian, and use type punning for less shifting/masking. */ @@ -749,6 +741,7 @@ static int nand_davinci_probe(struct platform_device *pdev) info->chip.ecc.correct = nand_davinci_correct_4bit; info->chip.ecc.hwctl = nand_davinci_hwctl_4bit; info->chip.ecc.bytes = 10; + info->chip.ecc.options = NAND_ECC_GENERIC_ERASED_CHECK; } else { info->chip.ecc.calculate = nand_davinci_calculate_1bit; info->chip.ecc.correct = nand_davinci_correct_1bit; -- cgit v1.2.3 From cc01e6075c7f5fee72746bb0ec763b84a46c3778 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Wed, 30 Dec 2015 20:39:52 +0100 Subject: mtd: nand: diskonchip: remove custom 'erased check' implementation The diskonchip driver is manually checking for 'erased pages' while correcting ECC bytes. This logic can now done by the core infrastructure, and can thus be removed from this driver. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/diskonchip.c | 38 +++----------------------------------- 1 file changed, 3 insertions(+), 35 deletions(-) diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index a5c046654233..4f4aa3555a6f 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -74,10 +74,6 @@ struct doc_priv { int (*late_init)(struct mtd_info *mtd); }; -/* This is the syndrome computed by the HW ecc generator upon reading an empty - page, one with all 0xff for data and stored ecc code. */ -static u_char empty_read_syndrome[6] = { 0x26, 0xff, 0x6d, 0x47, 0x73, 0x7a }; - /* This is the ecc value computed by the HW ecc generator upon writing an empty page, one with all 0xff for data. */ static u_char empty_write_ecc[6] = { 0x4b, 0x00, 0xe2, 0x0e, 0x93, 0xf7 }; @@ -912,7 +908,6 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, void __iomem *docptr = doc->virtadr; uint8_t calc_ecc[6]; volatile u_char dummy; - int emptymatch = 1; /* flush the pipeline */ if (DoC_is_2000(doc)) { @@ -936,37 +931,9 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, calc_ecc[i] = ReadDOC_(docptr, DoC_Mplus_ECCSyndrome0 + i); else calc_ecc[i] = ReadDOC_(docptr, DoC_ECCSyndrome0 + i); - if (calc_ecc[i] != empty_read_syndrome[i]) - emptymatch = 0; - } - /* If emptymatch=1, the read syndrome is consistent with an - all-0xff data and stored ecc block. Check the stored ecc. */ - if (emptymatch) { - for (i = 0; i < 6; i++) { - if (read_ecc[i] == 0xff) - continue; - emptymatch = 0; - break; - } } - /* If emptymatch still =1, check the data block. */ - if (emptymatch) { - /* Note: this somewhat expensive test should not be triggered - often. It could be optimized away by examining the data in - the readbuf routine, and remembering the result. */ - for (i = 0; i < 512; i++) { - if (dat[i] == 0xff) - continue; - emptymatch = 0; - break; - } - } - /* If emptymatch still =1, this is almost certainly a freshly- - erased block, in which case the ECC will not come out right. - We'll suppress the error and tell the caller everything's - OK. Because it is. */ - if (!emptymatch) - ret = doc_ecc_decode(rs_decoder, dat, calc_ecc); + + ret = doc_ecc_decode(rs_decoder, dat, calc_ecc); if (ret > 0) printk(KERN_ERR "doc200x_correct_data corrected %d errors\n", ret); } @@ -1586,6 +1553,7 @@ static int __init doc_probe(unsigned long physadr) nand->ecc.size = 512; nand->ecc.bytes = 6; nand->ecc.strength = 2; + nand->ecc.options = NAND_ECC_GENERIC_ERASED_CHECK; nand->bbt_options = NAND_BBT_USE_FLASH; /* Skip the automatic BBT scan so we can run it manually */ nand->options |= NAND_SKIP_BBTSCAN; -- cgit v1.2.3 From 48bf35de3133996fbac2be16430cd4ea00fa8d38 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Wed, 30 Dec 2015 20:41:29 +0100 Subject: mtd: nand: jz4740: remove custom 'erased check' implementation The jz4740 driver is manually checking for 'erased pages' while correcting ECC bytes. This logic can now done by the core infrastructure, and can thus be removed from this driver. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/jz4740_nand.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index adccae3da120..b19d2a9a5eb9 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -224,24 +224,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat, uint32_t t; unsigned int timeout = 1000; - t = read_ecc[0]; - - if (t == 0xff) { - for (i = 1; i < 9; ++i) - t &= read_ecc[i]; - - t &= dat[0]; - t &= dat[nand->chip.ecc.size / 2]; - t &= dat[nand->chip.ecc.size - 1]; - - if (t == 0xff) { - for (i = 1; i < nand->chip.ecc.size - 1; ++i) - t &= dat[i]; - if (t == 0xff) - return 0; - } - } - for (i = 0; i < 9; ++i) writeb(read_ecc[i], nand->base + JZ_REG_NAND_PAR0 + i); @@ -443,6 +425,7 @@ static int jz_nand_probe(struct platform_device *pdev) chip->ecc.size = 512; chip->ecc.bytes = 9; chip->ecc.strength = 4; + chip->ecc.options = NAND_ECC_GENERIC_ERASED_CHECK; if (pdata) chip->ecc.layout = pdata->ecc_layout; -- cgit v1.2.3 From ae02ab00aa3c282a362af8c4496496970747ddf4 Mon Sep 17 00:00:00 2001 From: Alex Smith Date: Mon, 4 Jan 2016 12:34:43 +0000 Subject: mtd: nand: jz4780: driver for NAND devices on JZ4780 SoCs Add a driver for NAND devices connected to the NEMC on JZ4780 SoCs, as well as the hardware BCH controller. DMA is not currently implemented. While older 47xx SoCs also have a BCH controller, they are incompatible with the one in the 4780 due to differing register/bit positions, which would make implementing a common driver for them quite messy. Signed-off-by: Alex Smith Cc: Zubair Lutfullah Kakakhel Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Harvey Hunt Reviewed-by: Boris Brezillon [Brian: fixed a few small mistakes] Signed-off-by: Brian Norris --- drivers/mtd/nand/Kconfig | 7 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/jz4780_bch.c | 381 ++++++++++++++++++++++++++++++++++++ drivers/mtd/nand/jz4780_bch.h | 43 +++++ drivers/mtd/nand/jz4780_nand.c | 425 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 857 insertions(+) create mode 100644 drivers/mtd/nand/jz4780_bch.c create mode 100644 drivers/mtd/nand/jz4780_bch.h create mode 100644 drivers/mtd/nand/jz4780_nand.c diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 95b8d2b8a7af..20f01b3ec23d 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -519,6 +519,13 @@ config MTD_NAND_JZ4740 help Enables support for NAND Flash on JZ4740 SoC based boards. +config MTD_NAND_JZ4780 + tristate "Support for NAND on JZ4780 SoC" + depends on MACH_JZ4780 && JZ4780_NEMC + help + Enables support for NAND Flash connected to the NEMC on JZ4780 SoC + based boards, using the BCH controller for hardware error correction. + config MTD_NAND_FSMC tristate "Support for NAND on ST Micros FSMC" depends on PLAT_SPEAR || ARCH_NOMADIK || ARCH_U8500 || MACH_U300 diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 2c7f014b349e..9e3623308509 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -49,6 +49,7 @@ obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o obj-$(CONFIG_MTD_NAND_VF610_NFC) += vf610_nfc.o obj-$(CONFIG_MTD_NAND_RICOH) += r852.o obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o +obj-$(CONFIG_MTD_NAND_JZ4780) += jz4780_nand.o jz4780_bch.o obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/ obj-$(CONFIG_MTD_NAND_XWAY) += xway_nand.o obj-$(CONFIG_MTD_NAND_BCM47XXNFLASH) += bcm47xxnflash/ diff --git a/drivers/mtd/nand/jz4780_bch.c b/drivers/mtd/nand/jz4780_bch.c new file mode 100644 index 000000000000..5954fbfa29e9 --- /dev/null +++ b/drivers/mtd/nand/jz4780_bch.c @@ -0,0 +1,381 @@ +/* + * JZ4780 BCH controller + * + * Copyright (c) 2015 Imagination Technologies + * Author: Alex Smith + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "jz4780_bch.h" + +#define BCH_BHCR 0x0 +#define BCH_BHCCR 0x8 +#define BCH_BHCNT 0xc +#define BCH_BHDR 0x10 +#define BCH_BHPAR0 0x14 +#define BCH_BHERR0 0x84 +#define BCH_BHINT 0x184 +#define BCH_BHINTES 0x188 +#define BCH_BHINTEC 0x18c +#define BCH_BHINTE 0x190 + +#define BCH_BHCR_BSEL_SHIFT 4 +#define BCH_BHCR_BSEL_MASK (0x7f << BCH_BHCR_BSEL_SHIFT) +#define BCH_BHCR_ENCE BIT(2) +#define BCH_BHCR_INIT BIT(1) +#define BCH_BHCR_BCHE BIT(0) + +#define BCH_BHCNT_PARITYSIZE_SHIFT 16 +#define BCH_BHCNT_PARITYSIZE_MASK (0x7f << BCH_BHCNT_PARITYSIZE_SHIFT) +#define BCH_BHCNT_BLOCKSIZE_SHIFT 0 +#define BCH_BHCNT_BLOCKSIZE_MASK (0x7ff << BCH_BHCNT_BLOCKSIZE_SHIFT) + +#define BCH_BHERR_MASK_SHIFT 16 +#define BCH_BHERR_MASK_MASK (0xffff << BCH_BHERR_MASK_SHIFT) +#define BCH_BHERR_INDEX_SHIFT 0 +#define BCH_BHERR_INDEX_MASK (0x7ff << BCH_BHERR_INDEX_SHIFT) + +#define BCH_BHINT_ERRC_SHIFT 24 +#define BCH_BHINT_ERRC_MASK (0x7f << BCH_BHINT_ERRC_SHIFT) +#define BCH_BHINT_TERRC_SHIFT 16 +#define BCH_BHINT_TERRC_MASK (0x7f << BCH_BHINT_TERRC_SHIFT) +#define BCH_BHINT_DECF BIT(3) +#define BCH_BHINT_ENCF BIT(2) +#define BCH_BHINT_UNCOR BIT(1) +#define BCH_BHINT_ERR BIT(0) + +#define BCH_CLK_RATE (200 * 1000 * 1000) + +/* Timeout for BCH calculation/correction. */ +#define BCH_TIMEOUT_US 100000 + +struct jz4780_bch { + struct device *dev; + void __iomem *base; + struct clk *clk; + struct mutex lock; +}; + +static void jz4780_bch_init(struct jz4780_bch *bch, + struct jz4780_bch_params *params, bool encode) +{ + u32 reg; + + /* Clear interrupt status. */ + writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT); + + /* Set up BCH count register. */ + reg = params->size << BCH_BHCNT_BLOCKSIZE_SHIFT; + reg |= params->bytes << BCH_BHCNT_PARITYSIZE_SHIFT; + writel(reg, bch->base + BCH_BHCNT); + + /* Initialise and enable BCH. */ + reg = BCH_BHCR_BCHE | BCH_BHCR_INIT; + reg |= params->strength << BCH_BHCR_BSEL_SHIFT; + if (encode) + reg |= BCH_BHCR_ENCE; + writel(reg, bch->base + BCH_BHCR); +} + +static void jz4780_bch_disable(struct jz4780_bch *bch) +{ + writel(readl(bch->base + BCH_BHINT), bch->base + BCH_BHINT); + writel(BCH_BHCR_BCHE, bch->base + BCH_BHCCR); +} + +static void jz4780_bch_write_data(struct jz4780_bch *bch, const void *buf, + size_t size) +{ + size_t size32 = size / sizeof(u32); + size_t size8 = size % sizeof(u32); + const u32 *src32; + const u8 *src8; + + src32 = (const u32 *)buf; + while (size32--) + writel(*src32++, bch->base + BCH_BHDR); + + src8 = (const u8 *)src32; + while (size8--) + writeb(*src8++, bch->base + BCH_BHDR); +} + +static void jz4780_bch_read_parity(struct jz4780_bch *bch, void *buf, + size_t size) +{ + size_t size32 = size / sizeof(u32); + size_t size8 = size % sizeof(u32); + u32 *dest32; + u8 *dest8; + u32 val, offset = 0; + + dest32 = (u32 *)buf; + while (size32--) { + *dest32++ = readl(bch->base + BCH_BHPAR0 + offset); + offset += sizeof(u32); + } + + dest8 = (u8 *)dest32; + val = readl(bch->base + BCH_BHPAR0 + offset); + switch (size8) { + case 3: + dest8[2] = (val >> 16) & 0xff; + case 2: + dest8[1] = (val >> 8) & 0xff; + case 1: + dest8[0] = val & 0xff; + break; + } +} + +static bool jz4780_bch_wait_complete(struct jz4780_bch *bch, unsigned int irq, + u32 *status) +{ + u32 reg; + int ret; + + /* + * While we could use interrupts here and sleep until the operation + * completes, the controller works fairly quickly (usually a few + * microseconds) and so the overhead of sleeping until we get an + * interrupt quite noticeably decreases performance. + */ + ret = readl_poll_timeout(bch->base + BCH_BHINT, reg, + (reg & irq) == irq, 0, BCH_TIMEOUT_US); + if (ret) + return false; + + if (status) + *status = reg; + + writel(reg, bch->base + BCH_BHINT); + return true; +} + +/** + * jz4780_bch_calculate() - calculate ECC for a data buffer + * @bch: BCH device. + * @params: BCH parameters. + * @buf: input buffer with raw data. + * @ecc_code: output buffer with ECC. + * + * Return: 0 on success, -ETIMEDOUT if timed out while waiting for BCH + * controller. + */ +int jz4780_bch_calculate(struct jz4780_bch *bch, struct jz4780_bch_params *params, + const u8 *buf, u8 *ecc_code) +{ + int ret = 0; + + mutex_lock(&bch->lock); + jz4780_bch_init(bch, params, true); + jz4780_bch_write_data(bch, buf, params->size); + + if (jz4780_bch_wait_complete(bch, BCH_BHINT_ENCF, NULL)) { + jz4780_bch_read_parity(bch, ecc_code, params->bytes); + } else { + dev_err(bch->dev, "timed out while calculating ECC\n"); + ret = -ETIMEDOUT; + } + + jz4780_bch_disable(bch); + mutex_unlock(&bch->lock); + return ret; +} +EXPORT_SYMBOL(jz4780_bch_calculate); + +/** + * jz4780_bch_correct() - detect and correct bit errors + * @bch: BCH device. + * @params: BCH parameters. + * @buf: raw data read from the chip. + * @ecc_code: ECC read from the chip. + * + * Given the raw data and the ECC read from the NAND device, detects and + * corrects errors in the data. + * + * Return: the number of bit errors corrected, or -1 if there are too many + * errors to correct or we timed out waiting for the controller. + */ +int jz4780_bch_correct(struct jz4780_bch *bch, struct jz4780_bch_params *params, + u8 *buf, u8 *ecc_code) +{ + u32 reg, mask, index; + int i, ret, count; + + mutex_lock(&bch->lock); + + jz4780_bch_init(bch, params, false); + jz4780_bch_write_data(bch, buf, params->size); + jz4780_bch_write_data(bch, ecc_code, params->bytes); + + if (!jz4780_bch_wait_complete(bch, BCH_BHINT_DECF, ®)) { + dev_err(bch->dev, "timed out while correcting data\n"); + ret = -1; + goto out; + } + + if (reg & BCH_BHINT_UNCOR) { + dev_warn(bch->dev, "uncorrectable ECC error\n"); + ret = -1; + goto out; + } + + /* Correct any detected errors. */ + if (reg & BCH_BHINT_ERR) { + count = (reg & BCH_BHINT_ERRC_MASK) >> BCH_BHINT_ERRC_SHIFT; + ret = (reg & BCH_BHINT_TERRC_MASK) >> BCH_BHINT_TERRC_SHIFT; + + for (i = 0; i < count; i++) { + reg = readl(bch->base + BCH_BHERR0 + (i * 4)); + mask = (reg & BCH_BHERR_MASK_MASK) >> + BCH_BHERR_MASK_SHIFT; + index = (reg & BCH_BHERR_INDEX_MASK) >> + BCH_BHERR_INDEX_SHIFT; + buf[(index * 2) + 0] ^= mask; + buf[(index * 2) + 1] ^= mask >> 8; + } + } else { + ret = 0; + } + +out: + jz4780_bch_disable(bch); + mutex_unlock(&bch->lock); + return ret; +} +EXPORT_SYMBOL(jz4780_bch_correct); + +/** + * jz4780_bch_get() - get the BCH controller device + * @np: BCH device tree node. + * + * Gets the BCH controller device from the specified device tree node. The + * device must be released with jz4780_bch_release() when it is no longer being + * used. + * + * Return: a pointer to jz4780_bch, errors are encoded into the pointer. + * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. + */ +static struct jz4780_bch *jz4780_bch_get(struct device_node *np) +{ + struct platform_device *pdev; + struct jz4780_bch *bch; + + pdev = of_find_device_by_node(np); + if (!pdev || !platform_get_drvdata(pdev)) + return ERR_PTR(-EPROBE_DEFER); + + get_device(&pdev->dev); + + bch = platform_get_drvdata(pdev); + clk_prepare_enable(bch->clk); + + bch->dev = &pdev->dev; + return bch; +} + +/** + * of_jz4780_bch_get() - get the BCH controller from a DT node + * @of_node: the node that contains a bch-controller property. + * + * Get the bch-controller property from the given device tree + * node and pass it to jz4780_bch_get to do the work. + * + * Return: a pointer to jz4780_bch, errors are encoded into the pointer. + * PTR_ERR(-EPROBE_DEFER) if the device hasn't been initialised yet. + */ +struct jz4780_bch *of_jz4780_bch_get(struct device_node *of_node) +{ + struct jz4780_bch *bch = NULL; + struct device_node *np; + + np = of_parse_phandle(of_node, "ingenic,bch-controller", 0); + + if (np) { + bch = jz4780_bch_get(np); + of_node_put(np); + } + return bch; +} +EXPORT_SYMBOL(of_jz4780_bch_get); + +/** + * jz4780_bch_release() - release the BCH controller device + * @bch: BCH device. + */ +void jz4780_bch_release(struct jz4780_bch *bch) +{ + clk_disable_unprepare(bch->clk); + put_device(bch->dev); +} +EXPORT_SYMBOL(jz4780_bch_release); + +static int jz4780_bch_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct jz4780_bch *bch; + struct resource *res; + + bch = devm_kzalloc(dev, sizeof(*bch), GFP_KERNEL); + if (!bch) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + bch->base = devm_ioremap_resource(dev, res); + if (IS_ERR(bch->base)) + return PTR_ERR(bch->base); + + jz4780_bch_disable(bch); + + bch->clk = devm_clk_get(dev, NULL); + if (IS_ERR(bch->clk)) { + dev_err(dev, "failed to get clock: %ld\n", PTR_ERR(bch->clk)); + return PTR_ERR(bch->clk); + } + + clk_set_rate(bch->clk, BCH_CLK_RATE); + + mutex_init(&bch->lock); + + bch->dev = dev; + platform_set_drvdata(pdev, bch); + + return 0; +} + +static const struct of_device_id jz4780_bch_dt_match[] = { + { .compatible = "ingenic,jz4780-bch" }, + {}, +}; +MODULE_DEVICE_TABLE(of, jz4780_bch_dt_match); + +static struct platform_driver jz4780_bch_driver = { + .probe = jz4780_bch_probe, + .driver = { + .name = "jz4780-bch", + .of_match_table = of_match_ptr(jz4780_bch_dt_match), + }, +}; +module_platform_driver(jz4780_bch_driver); + +MODULE_AUTHOR("Alex Smith "); +MODULE_AUTHOR("Harvey Hunt "); +MODULE_DESCRIPTION("Ingenic JZ4780 BCH error correction driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mtd/nand/jz4780_bch.h b/drivers/mtd/nand/jz4780_bch.h new file mode 100644 index 000000000000..bf4718088a3a --- /dev/null +++ b/drivers/mtd/nand/jz4780_bch.h @@ -0,0 +1,43 @@ +/* + * JZ4780 BCH controller + * + * Copyright (c) 2015 Imagination Technologies + * Author: Alex Smith + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#ifndef __DRIVERS_MTD_NAND_JZ4780_BCH_H__ +#define __DRIVERS_MTD_NAND_JZ4780_BCH_H__ + +#include + +struct device; +struct device_node; +struct jz4780_bch; + +/** + * struct jz4780_bch_params - BCH parameters + * @size: data bytes per ECC step. + * @bytes: ECC bytes per step. + * @strength: number of correctable bits per ECC step. + */ +struct jz4780_bch_params { + int size; + int bytes; + int strength; +}; + +int jz4780_bch_calculate(struct jz4780_bch *bch, + struct jz4780_bch_params *params, + const u8 *buf, u8 *ecc_code); +int jz4780_bch_correct(struct jz4780_bch *bch, + struct jz4780_bch_params *params, u8 *buf, + u8 *ecc_code); + +void jz4780_bch_release(struct jz4780_bch *bch); +struct jz4780_bch *of_jz4780_bch_get(struct device_node *np); + +#endif /* __DRIVERS_MTD_NAND_JZ4780_BCH_H__ */ diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c new file mode 100644 index 000000000000..17eb9f264187 --- /dev/null +++ b/drivers/mtd/nand/jz4780_nand.c @@ -0,0 +1,425 @@ +/* + * JZ4780 NAND driver + * + * Copyright (c) 2015 Imagination Technologies + * Author: Alex Smith + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "jz4780_bch.h" + +#define DRV_NAME "jz4780-nand" + +#define OFFSET_DATA 0x00000000 +#define OFFSET_CMD 0x00400000 +#define OFFSET_ADDR 0x00800000 + +/* Command delay when there is no R/B pin. */ +#define RB_DELAY_US 100 + +struct jz4780_nand_cs { + unsigned int bank; + void __iomem *base; +}; + +struct jz4780_nand_controller { + struct device *dev; + struct jz4780_bch *bch; + struct nand_hw_control controller; + unsigned int num_banks; + struct list_head chips; + int selected; + struct jz4780_nand_cs cs[]; +}; + +struct jz4780_nand_chip { + struct nand_chip chip; + struct list_head chip_list; + + struct nand_ecclayout ecclayout; + + struct gpio_desc *busy_gpio; + struct gpio_desc *wp_gpio; + unsigned int reading: 1; +}; + +static inline struct jz4780_nand_chip *to_jz4780_nand_chip(struct mtd_info *mtd) +{ + return container_of(mtd_to_nand(mtd), struct jz4780_nand_chip, chip); +} + +static inline struct jz4780_nand_controller *to_jz4780_nand_controller(struct nand_hw_control *ctrl) +{ + return container_of(ctrl, struct jz4780_nand_controller, controller); +} + +static void jz4780_nand_select_chip(struct mtd_info *mtd, int chipnr) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); + struct jz4780_nand_cs *cs; + + /* Ensure the currently selected chip is deasserted. */ + if (chipnr == -1 && nfc->selected >= 0) { + cs = &nfc->cs[nfc->selected]; + jz4780_nemc_assert(nfc->dev, cs->bank, false); + } + + nfc->selected = chipnr; +} + +static void jz4780_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, + unsigned int ctrl) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); + struct jz4780_nand_cs *cs; + + if (WARN_ON(nfc->selected < 0)) + return; + + cs = &nfc->cs[nfc->selected]; + + jz4780_nemc_assert(nfc->dev, cs->bank, ctrl & NAND_NCE); + + if (cmd == NAND_CMD_NONE) + return; + + if (ctrl & NAND_ALE) + writeb(cmd, cs->base + OFFSET_ADDR); + else if (ctrl & NAND_CLE) + writeb(cmd, cs->base + OFFSET_CMD); +} + +static int jz4780_nand_dev_ready(struct mtd_info *mtd) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + + return !gpiod_get_value_cansleep(nand->busy_gpio); +} + +static void jz4780_nand_ecc_hwctl(struct mtd_info *mtd, int mode) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + + nand->reading = (mode == NAND_ECC_READ); +} + +static int jz4780_nand_ecc_calculate(struct mtd_info *mtd, const u8 *dat, + u8 *ecc_code) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); + struct jz4780_bch_params params; + + /* + * Don't need to generate the ECC when reading, BCH does it for us as + * part of decoding/correction. + */ + if (nand->reading) + return 0; + + params.size = nand->chip.ecc.size; + params.bytes = nand->chip.ecc.bytes; + params.strength = nand->chip.ecc.strength; + + return jz4780_bch_calculate(nfc->bch, ¶ms, dat, ecc_code); +} + +static int jz4780_nand_ecc_correct(struct mtd_info *mtd, u8 *dat, + u8 *read_ecc, u8 *calc_ecc) +{ + struct jz4780_nand_chip *nand = to_jz4780_nand_chip(mtd); + struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(nand->chip.controller); + struct jz4780_bch_params params; + + params.size = nand->chip.ecc.size; + params.bytes = nand->chip.ecc.bytes; + params.strength = nand->chip.ecc.strength; + + return jz4780_bch_correct(nfc->bch, ¶ms, dat, read_ecc); +} + +static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *dev) +{ + struct nand_chip *chip = &nand->chip; + struct mtd_info *mtd = nand_to_mtd(chip); + struct jz4780_nand_controller *nfc = to_jz4780_nand_controller(chip->controller); + struct nand_ecclayout *layout = &nand->ecclayout; + u32 start, i; + + chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) * + (chip->ecc.strength / 8); + + if (nfc->bch && chip->ecc.mode == NAND_ECC_HW) { + chip->ecc.hwctl = jz4780_nand_ecc_hwctl; + chip->ecc.calculate = jz4780_nand_ecc_calculate; + chip->ecc.correct = jz4780_nand_ecc_correct; + } else if (!nfc->bch && chip->ecc.mode == NAND_ECC_HW) { + dev_err(dev, "HW BCH selected, but BCH controller not found\n"); + return -ENODEV; + } + + if (chip->ecc.mode == NAND_ECC_HW_SYNDROME) { + dev_err(dev, "ECC HW syndrome not supported\n"); + return -EINVAL; + } + + if (chip->ecc.mode != NAND_ECC_NONE) + dev_info(dev, "using %s (strength %d, size %d, bytes %d)\n", + (nfc->bch) ? "hardware BCH" : "software ECC", + chip->ecc.strength, chip->ecc.size, chip->ecc.bytes); + else + dev_info(dev, "not using ECC\n"); + + /* The NAND core will generate the ECC layout. */ + if (chip->ecc.mode == NAND_ECC_SOFT || chip->ecc.mode == NAND_ECC_SOFT_BCH) + return 0; + + /* Generate ECC layout. ECC codes are right aligned in the OOB area. */ + layout->eccbytes = mtd->writesize / chip->ecc.size * chip->ecc.bytes; + + if (layout->eccbytes > mtd->oobsize - 2) { + dev_err(dev, + "invalid ECC config: required %d ECC bytes, but only %d are available", + layout->eccbytes, mtd->oobsize - 2); + return -EINVAL; + } + + start = mtd->oobsize - layout->eccbytes; + for (i = 0; i < layout->eccbytes; i++) + layout->eccpos[i] = start + i; + + layout->oobfree[0].offset = 2; + layout->oobfree[0].length = mtd->oobsize - layout->eccbytes - 2; + + chip->ecc.layout = layout; + return 0; +} + +static int jz4780_nand_init_chip(struct platform_device *pdev, + struct jz4780_nand_controller *nfc, + struct device_node *np, + unsigned int chipnr) +{ + struct device *dev = &pdev->dev; + struct jz4780_nand_chip *nand; + struct jz4780_nand_cs *cs; + struct resource *res; + struct nand_chip *chip; + struct mtd_info *mtd; + const __be32 *reg; + int ret = 0; + + cs = &nfc->cs[chipnr]; + + reg = of_get_property(np, "reg", NULL); + if (!reg) + return -EINVAL; + + cs->bank = be32_to_cpu(*reg); + + jz4780_nemc_set_type(nfc->dev, cs->bank, JZ4780_NEMC_BANK_NAND); + + res = platform_get_resource(pdev, IORESOURCE_MEM, chipnr); + cs->base = devm_ioremap_resource(dev, res); + if (IS_ERR(cs->base)) + return PTR_ERR(cs->base); + + nand = devm_kzalloc(dev, sizeof(*nand), GFP_KERNEL); + if (!nand) + return -ENOMEM; + + nand->busy_gpio = devm_gpiod_get_optional(dev, "rb", GPIOD_IN); + + if (IS_ERR(nand->busy_gpio)) { + ret = PTR_ERR(nand->busy_gpio); + dev_err(dev, "failed to request busy GPIO: %d\n", ret); + return ret; + } else if (nand->busy_gpio) { + nand->chip.dev_ready = jz4780_nand_dev_ready; + } + + nand->wp_gpio = devm_gpiod_get_optional(dev, "wp", GPIOD_OUT_LOW); + + if (IS_ERR(nand->wp_gpio)) { + ret = PTR_ERR(nand->wp_gpio); + dev_err(dev, "failed to request WP GPIO: %d\n", ret); + return ret; + } + + chip = &nand->chip; + mtd = nand_to_mtd(chip); + mtd->priv = chip; + mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev), + cs->bank); + if (!mtd->name) + return -ENOMEM; + mtd->dev.parent = dev; + + chip->IO_ADDR_R = cs->base + OFFSET_DATA; + chip->IO_ADDR_W = cs->base + OFFSET_DATA; + chip->chip_delay = RB_DELAY_US; + chip->options = NAND_NO_SUBPAGE_WRITE; + chip->select_chip = jz4780_nand_select_chip; + chip->cmd_ctrl = jz4780_nand_cmd_ctrl; + chip->ecc.mode = NAND_ECC_HW; + chip->controller = &nfc->controller; + nand_set_flash_node(chip, np); + + ret = nand_scan_ident(mtd, 1, NULL); + if (ret) + return ret; + + ret = jz4780_nand_init_ecc(nand, dev); + if (ret) + return ret; + + ret = nand_scan_tail(mtd); + if (ret) + return ret; + + ret = mtd_device_register(mtd, NULL, 0); + if (ret) { + nand_release(mtd); + return ret; + } + + list_add_tail(&nand->chip_list, &nfc->chips); + + return 0; +} + +static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc) +{ + struct jz4780_nand_chip *chip; + + while (!list_empty(&nfc->chips)) { + chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list); + nand_release(nand_to_mtd(&chip->chip)); + list_del(&chip->chip_list); + } +} + +static int jz4780_nand_init_chips(struct jz4780_nand_controller *nfc, + struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct device_node *np; + int i = 0; + int ret; + int num_chips = of_get_child_count(dev->of_node); + + if (num_chips > nfc->num_banks) { + dev_err(dev, "found %d chips but only %d banks\n", num_chips, nfc->num_banks); + return -EINVAL; + } + + for_each_child_of_node(dev->of_node, np) { + ret = jz4780_nand_init_chip(pdev, nfc, np, i); + if (ret) { + jz4780_nand_cleanup_chips(nfc); + return ret; + } + + i++; + } + + return 0; +} + +static int jz4780_nand_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + unsigned int num_banks; + struct jz4780_nand_controller *nfc; + int ret; + + num_banks = jz4780_nemc_num_banks(dev); + if (num_banks == 0) { + dev_err(dev, "no banks found\n"); + return -ENODEV; + } + + nfc = devm_kzalloc(dev, sizeof(*nfc) + (sizeof(nfc->cs[0]) * num_banks), GFP_KERNEL); + if (!nfc) + return -ENOMEM; + + /* + * Check for BCH HW before we call nand_scan_ident, to prevent us from + * having to call it again if the BCH driver returns -EPROBE_DEFER. + */ + nfc->bch = of_jz4780_bch_get(dev->of_node); + if (IS_ERR(nfc->bch)) + return PTR_ERR(nfc->bch); + + nfc->dev = dev; + nfc->num_banks = num_banks; + + spin_lock_init(&nfc->controller.lock); + INIT_LIST_HEAD(&nfc->chips); + init_waitqueue_head(&nfc->controller.wq); + + ret = jz4780_nand_init_chips(nfc, pdev); + if (ret) { + if (nfc->bch) + jz4780_bch_release(nfc->bch); + return ret; + } + + platform_set_drvdata(pdev, nfc); + return 0; +} + +static int jz4780_nand_remove(struct platform_device *pdev) +{ + struct jz4780_nand_controller *nfc = platform_get_drvdata(pdev); + + if (nfc->bch) + jz4780_bch_release(nfc->bch); + + jz4780_nand_cleanup_chips(nfc); + + return 0; +} + +static const struct of_device_id jz4780_nand_dt_match[] = { + { .compatible = "ingenic,jz4780-nand" }, + {}, +}; +MODULE_DEVICE_TABLE(of, jz4780_nand_dt_match); + +static struct platform_driver jz4780_nand_driver = { + .probe = jz4780_nand_probe, + .remove = jz4780_nand_remove, + .driver = { + .name = DRV_NAME, + .of_match_table = of_match_ptr(jz4780_nand_dt_match), + }, +}; +module_platform_driver(jz4780_nand_driver); + +MODULE_AUTHOR("Alex Smith "); +MODULE_AUTHOR("Harvey Hunt "); +MODULE_DESCRIPTION("Ingenic JZ4780 NAND driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3 From d39ddbd9ef70949bb78283a067e1b3366111dd90 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:39 +0100 Subject: mtd: nand: add helpers to access ->priv Add two helpers to access the field reserved for private controller data. This makes it clearer what this field is reserved for and ease future refactoring. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- include/linux/mtd/nand.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 86487dbe7358..bdd68e22b5a5 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -755,6 +755,16 @@ static inline struct mtd_info *nand_to_mtd(struct nand_chip *chip) return &chip->mtd; } +static inline void *nand_get_controller_data(struct nand_chip *chip) +{ + return chip->priv; +} + +static inline void nand_set_controller_data(struct nand_chip *chip, void *priv) +{ + chip->priv = priv; +} + /* * NAND Flash Manufacturer ID Codes */ -- cgit v1.2.3 From d9dccc68c5cae4ef7b4a617a93a87b11c6f0c53a Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:40 +0100 Subject: ARM: make use of nand_set/get_controller_data() helpers New helpers have been added to avoid directly accessing chip->field. Use them where appropriate. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- arch/arm/mach-ixp4xx/ixdp425-setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index 333b0f9ea635..508c2d7786e2 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -77,7 +77,7 @@ static void ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *this = mtd_to_nand(mtd); - int offset = (int)this->priv; + int offset = (int)nand_get_controller_data(this); if (ctrl & NAND_CTRL_CHANGE) { if (ctrl & NAND_NCE) { @@ -88,7 +88,7 @@ ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0; offset |= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0; - this->priv = (void *)offset; + nand_set_controller_data(this, (void *)offset); } if (cmd != NAND_CMD_NONE) -- cgit v1.2.3 From d699ed250c07384840263bbbf69cf7b90b45470c Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:41 +0100 Subject: mtd: nand: make use of nand_set/get_controller_data() helpers New helpers have been added to avoid directly accessing chip->field. Use them where appropriate. Signed-off-by: Boris Brezillon [Brian: fixed a few rebase conflicts] Signed-off-by: Brian Norris --- drivers/mtd/nand/ams-delta.c | 6 +-- drivers/mtd/nand/atmel_nand.c | 55 +++++++++++----------- drivers/mtd/nand/bcm47xxnflash/main.c | 2 +- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 16 +++---- drivers/mtd/nand/bf5xx_nand.c | 2 +- drivers/mtd/nand/brcmnand/brcmnand.c | 30 ++++++------ drivers/mtd/nand/cafe_nand.c | 24 +++++----- drivers/mtd/nand/diskonchip.c | 70 ++++++++++++++-------------- drivers/mtd/nand/docg4.c | 40 ++++++++-------- drivers/mtd/nand/fsl_elbc_nand.c | 22 ++++----- drivers/mtd/nand/fsl_ifc_nand.c | 26 +++++------ drivers/mtd/nand/fsmc_nand.c | 2 +- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 28 +++++------ drivers/mtd/nand/hisi504_nand.c | 20 ++++---- drivers/mtd/nand/lpc32xx_mlc.c | 19 ++++---- drivers/mtd/nand/lpc32xx_slc.c | 20 ++++---- drivers/mtd/nand/mpc5121_nfc.c | 24 +++++----- drivers/mtd/nand/mxc_nand.c | 36 +++++++------- drivers/mtd/nand/nandsim.c | 4 +- drivers/mtd/nand/ndfc.c | 16 +++---- drivers/mtd/nand/orion_nand.c | 4 +- drivers/mtd/nand/pxa3xx_nand.c | 22 ++++----- drivers/mtd/nand/r852.c | 6 +-- drivers/mtd/nand/s3c2410.c | 4 +- drivers/mtd/nand/socrates_nand.c | 11 +++-- drivers/mtd/nand/txx9ndfmc.c | 8 ++-- 26 files changed, 260 insertions(+), 257 deletions(-) diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index 1a18938565ac..68b58c85789c 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -65,7 +65,7 @@ static struct mtd_partition partition_info[] = { static void ams_delta_write_byte(struct mtd_info *mtd, u_char byte) { struct nand_chip *this = mtd_to_nand(mtd); - void __iomem *io_base = this->priv; + void __iomem *io_base = (void __iomem *)nand_get_controller_data(this); writew(0, io_base + OMAP_MPUIO_IO_CNTL); writew(byte, this->IO_ADDR_W); @@ -78,7 +78,7 @@ static u_char ams_delta_read_byte(struct mtd_info *mtd) { u_char res; struct nand_chip *this = mtd_to_nand(mtd); - void __iomem *io_base = this->priv; + void __iomem *io_base = (void __iomem *)nand_get_controller_data(this); gpio_set_value(AMS_DELTA_GPIO_PIN_NAND_NRE, 0); ndelay(40); @@ -206,7 +206,7 @@ static int ams_delta_init(struct platform_device *pdev) goto out_free; } - this->priv = io_base; + nand_set_controller_data(this, (void *)io_base); /* Set address of NAND IO lines */ this->IO_ADDR_R = io_base + OMAP_MPUIO_INPUT_LATCH; diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index b216bf521349..bddcf83d6859 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -182,7 +182,7 @@ static void atmel_nand_disable(struct atmel_nand_host *host) static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); if (ctrl & NAND_CTRL_CHANGE) { if (ctrl & NAND_NCE) @@ -205,7 +205,7 @@ static void atmel_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl static int atmel_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); return gpio_get_value(host->board.rdy_pin) ^ !!host->board.rdy_pin_active_low; @@ -215,7 +215,7 @@ static int atmel_nand_device_ready(struct mtd_info *mtd) static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); int res = 0; if (gpio_is_valid(host->board.rdy_pin)) { @@ -267,7 +267,7 @@ static int atmel_nand_set_enable_ready_pins(struct mtd_info *mtd) static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) { memcpy(buf, host->nfc->data_in_sram, len); @@ -280,7 +280,7 @@ static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); if (host->nfc && host->nfc->use_nfc_sram && host->nfc->data_in_sram) { memcpy(buf, host->nfc->data_in_sram, len); @@ -354,7 +354,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len, struct dma_async_tx_descriptor *tx = NULL; dma_cookie_t cookie; struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); void *p = buf; int err = -EIO; enum dma_data_direction dir = is_read ? DMA_FROM_DEVICE : DMA_TO_DEVICE; @@ -427,7 +427,7 @@ err_buf: static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); if (use_dma && len > mtd->oobsize) /* only use DMA for bigger than oob size: better performances */ @@ -443,7 +443,7 @@ static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); if (use_dma && len > mtd->oobsize) /* only use DMA for bigger than oob size: better performances */ @@ -535,7 +535,7 @@ static int pmecc_data_alloc(struct atmel_nand_host *host) static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); int i; uint32_t value; @@ -552,7 +552,7 @@ static void pmecc_gen_syndrome(struct mtd_info *mtd, int sector) static void pmecc_substitute(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); int16_t __iomem *alpha_to = host->pmecc_alpha_to; int16_t __iomem *index_of = host->pmecc_index_of; int16_t *partial_syn = host->pmecc_partial_syn; @@ -594,7 +594,7 @@ static void pmecc_substitute(struct mtd_info *mtd) static void pmecc_get_sigma(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); int16_t *lmu = host->pmecc_lmu; int16_t *si = host->pmecc_si; @@ -752,7 +752,7 @@ static void pmecc_get_sigma(struct mtd_info *mtd) static int pmecc_err_location(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); unsigned long end_time; const int cap = host->pmecc_corr_cap; const int num = 2 * cap + 1; @@ -804,7 +804,7 @@ static void pmecc_correct_data(struct mtd_info *mtd, uint8_t *buf, uint8_t *ecc, int sector_num, int extra_bytes, int err_nbr) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); int i = 0; int byte_pos, bit_pos, sector_size, pos; uint32_t tmp; @@ -850,7 +850,7 @@ static int pmecc_correction(struct mtd_info *mtd, u32 pmecc_stat, uint8_t *buf, u8 *ecc) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); int i, err_nbr; uint8_t *buf_pos; int max_bitflips = 0; @@ -920,7 +920,7 @@ static void pmecc_enable(struct atmel_nand_host *host, int ecc_op) static int atmel_nand_pmecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); int eccsize = chip->ecc.size * chip->ecc.steps; uint8_t *oob = chip->oob_poi; uint32_t *eccpos = chip->ecc.layout->eccpos; @@ -958,7 +958,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); uint32_t *eccpos = chip->ecc.layout->eccpos; int i, j; unsigned long end_time; @@ -994,7 +994,7 @@ static int atmel_nand_pmecc_write_page(struct mtd_info *mtd, static void atmel_pmecc_core_init(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); uint32_t val = 0; struct nand_ecclayout *ecc_layout; @@ -1310,7 +1310,7 @@ static int atmel_nand_calculate(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); unsigned int ecc_value; /* get the first 2 ECC bytes */ @@ -1356,7 +1356,7 @@ static int atmel_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, * Workaround: Reset the parity registers before reading the * actual data. */ - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); if (host->board.need_reset_workaround) ecc_writel(host->ecc, CR, ATMEL_ECC_RST); @@ -1414,7 +1414,7 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *isnull) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); unsigned int ecc_status; unsigned int ecc_word, ecc_bit; @@ -1480,7 +1480,7 @@ static int atmel_nand_correct(struct mtd_info *mtd, u_char *dat, static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); if (host->board.need_reset_workaround) ecc_writel(host->ecc, CR, ATMEL_ECC_RST); @@ -1773,7 +1773,7 @@ static int nfc_device_ready(struct mtd_info *mtd) { u32 status, mask; struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); status = nfc_read_status(host); mask = nfc_readl(host->nfc->hsmc_regs, IMR); @@ -1789,7 +1789,7 @@ static int nfc_device_ready(struct mtd_info *mtd) static void nfc_select_chip(struct mtd_info *mtd, int chip) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = nand_chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(nand_chip); if (chip == -1) nfc_writel(host->nfc->hsmc_regs, CTRL, NFC_CTRL_DISABLE); @@ -1841,7 +1841,7 @@ static void nfc_nand_command(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); unsigned long timeout; unsigned int nfc_addr_cmd = 0; @@ -1967,7 +1967,7 @@ static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip, { int cfg, len; int status = 0; - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); void *sram = host->nfc->sram_bank0 + nfc_get_sram_off(host); /* Subpage write is not supported */ @@ -2028,7 +2028,7 @@ static int nfc_sram_write_page(struct mtd_info *mtd, struct nand_chip *chip, static int nfc_sram_init(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct atmel_nand_host *host = chip->priv; + struct atmel_nand_host *host = nand_get_controller_data(chip); int res = 0; /* Initialize the NFC CFG register */ @@ -2127,7 +2127,8 @@ static int atmel_nand_probe(struct platform_device *pdev) sizeof(struct atmel_nand_data)); } - nand_chip->priv = host; /* link the private data structures */ + /* link the private data structures */ + nand_set_controller_data(nand_chip, host); mtd->dev.parent = &pdev->dev; /* Set address of NAND IO lines */ diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index b44f821b1a3a..fb31429b70a9 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -34,7 +34,7 @@ static int bcm47xxnflash_probe(struct platform_device *pdev) if (!b47n) return -ENOMEM; - b47n->nand_chip.priv = b47n; + nand_set_controller_data(&b47n->nand_chip, b47n); mtd = nand_to_mtd(&b47n->nand_chip); mtd->dev.parent = &pdev->dev; b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c index 652478035a7d..f1da4ea88f2c 100644 --- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c +++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c @@ -90,7 +90,7 @@ static void bcm47xxnflash_ops_bcm4706_read(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); u32 ctlcode; u32 *dest = (u32 *)buf; @@ -140,7 +140,7 @@ static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); struct bcma_drv_cc *cc = b47n->cc; u32 ctlcode; @@ -174,7 +174,7 @@ static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); u32 code = 0; if (cmd == NAND_CMD_NONE) @@ -200,7 +200,7 @@ static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd, static int bcm47xxnflash_ops_bcm4706_dev_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); return !!(bcma_cc_read32(b47n->cc, BCMA_CC_NFLASH_CTL) & NCTL_READY); } @@ -217,7 +217,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, int page_addr) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); struct bcma_drv_cc *cc = b47n->cc; u32 ctlcode; int i; @@ -313,7 +313,7 @@ static void bcm47xxnflash_ops_bcm4706_cmdfunc(struct mtd_info *mtd, static u8 bcm47xxnflash_ops_bcm4706_read_byte(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); struct bcma_drv_cc *cc = b47n->cc; u32 tmp = 0; @@ -342,7 +342,7 @@ static void bcm47xxnflash_ops_bcm4706_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); switch (b47n->curr_command) { case NAND_CMD_READ0: @@ -358,7 +358,7 @@ static void bcm47xxnflash_ops_bcm4706_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv; + struct bcm47xxnflash *b47n = nand_get_controller_data(nand_chip); switch (b47n->curr_command) { case NAND_CMD_SEQIN: diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 89d9414c5593..7f6b30e615b7 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -781,7 +781,7 @@ static int bf5xx_nand_probe(struct platform_device *pdev) chip->cmd_ctrl = bf5xx_nand_hwcontrol; chip->dev_ready = bf5xx_nand_devready; - chip->priv = mtd; + nand_set_controller_data(chip, mtd); chip->controller = &info->controller; chip->IO_ADDR_R = (void __iomem *) NFC_READ; diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index aea08816d3ac..844fc07d22cd 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -877,7 +877,7 @@ static struct nand_ecclayout *brcmstb_choose_ecc_layout( static void brcmnand_wp(struct mtd_info *mtd, int wp) { struct nand_chip *chip = mtd_to_nand(mtd); - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; if ((ctrl->features & BRCMNAND_HAS_WP) && wp_on == 1) { @@ -1043,7 +1043,7 @@ static void brcmnand_cmd_ctrl(struct mtd_info *mtd, int dat, static int brcmnand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { struct nand_chip *chip = mtd_to_nand(mtd); - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; unsigned long timeo = msecs_to_jiffies(100); @@ -1117,7 +1117,7 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; u64 addr = (u64)page_addr << chip->page_shift; int native_cmd = 0; @@ -1223,7 +1223,7 @@ static void brcmnand_cmdfunc(struct mtd_info *mtd, unsigned command, static uint8_t brcmnand_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; uint8_t ret = 0; int addr, offs; @@ -1290,7 +1290,7 @@ static void brcmnand_write_buf(struct mtd_info *mtd, const uint8_t *buf, { int i; struct nand_chip *chip = mtd_to_nand(mtd); - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); switch (host->last_cmd) { case NAND_CMD_SET_FEATURES: @@ -1400,7 +1400,7 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip, u64 addr, unsigned int trans, u32 *buf, u8 *oob, u64 *err_addr) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; int i, j, ret = 0; @@ -1463,7 +1463,7 @@ static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip, u64 addr, unsigned int trans, u32 *buf, u8 *oob) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; u64 err_addr = 0; int err; @@ -1513,7 +1513,7 @@ static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL; return brcmnand_read(mtd, chip, host->last_addr, @@ -1523,7 +1523,7 @@ static int brcmnand_read_page(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); u8 *oob = oob_required ? (u8 *)chip->oob_poi : NULL; int ret; @@ -1545,7 +1545,7 @@ static int brcmnand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); brcmnand_set_ecc_enabled(host, 0); brcmnand_read(mtd, chip, (u64)page << chip->page_shift, @@ -1558,7 +1558,7 @@ static int brcmnand_read_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip, u64 addr, const u32 *buf, u8 *oob) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); struct brcmnand_controller *ctrl = host->ctrl; unsigned int i, j, trans = mtd->writesize >> FC_SHIFT; int status, ret = 0; @@ -1629,7 +1629,7 @@ out: static int brcmnand_write_page(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); void *oob = oob_required ? chip->oob_poi : NULL; brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob); @@ -1640,7 +1640,7 @@ static int brcmnand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); void *oob = oob_required ? chip->oob_poi : NULL; brcmnand_set_ecc_enabled(host, 0); @@ -1659,7 +1659,7 @@ static int brcmnand_write_oob(struct mtd_info *mtd, struct nand_chip *chip, static int brcmnand_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, int page) { - struct brcmnand_host *host = chip->priv; + struct brcmnand_host *host = nand_get_controller_data(chip); int ret; brcmnand_set_ecc_enabled(host, 0); @@ -1923,7 +1923,7 @@ static int brcmnand_init_cs(struct brcmnand_host *host, struct device_node *dn) chip = &host->chip; nand_set_flash_node(chip, dn); - chip->priv = host; + nand_set_controller_data(chip, host); mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "brcmnand.%d", host->cs); mtd->owner = THIS_MODULE; diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 00c15e22d827..aa1a616b9fb6 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -102,7 +102,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int cafe_device_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); @@ -119,7 +119,7 @@ static int cafe_device_ready(struct mtd_info *mtd) static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); if (usedma) memcpy(cafe->dmabuf + cafe->datalen, buf, len); @@ -135,7 +135,7 @@ static void cafe_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); if (usedma) memcpy(buf, cafe->dmabuf + cafe->datalen, len); @@ -150,7 +150,7 @@ static void cafe_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static uint8_t cafe_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); uint8_t d; cafe_read_buf(mtd, &d, 1); @@ -163,7 +163,7 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); int adrbytes = 0; uint32_t ctl1; uint32_t doneint = 0x80000000; @@ -319,7 +319,7 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command, static void cafe_select_chip(struct mtd_info *mtd, int chipnr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr); @@ -335,7 +335,7 @@ static irqreturn_t cafe_nand_interrupt(int irq, void *id) { struct mtd_info *mtd = id; struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); cafe_writel(cafe, irqs & ~0x90000000, NAND_IRQ); if (!irqs) @@ -384,7 +384,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); unsigned int max_bitflips = 0; cafe_dev_dbg(&cafe->pdev->dev, "ECC result %08x SYN1,2 %08x\n", @@ -526,7 +526,7 @@ static int cafe_nand_write_page_lowlevel(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); chip->write_buf(mtd, buf, mtd->writesize); chip->write_buf(mtd, chip->oob_poi, mtd->oobsize); @@ -611,7 +611,7 @@ static int cafe_nand_probe(struct pci_dev *pdev, mtd = nand_to_mtd(&cafe->nand); mtd->dev.parent = &pdev->dev; - cafe->nand.priv = cafe; + nand_set_controller_data(&cafe->nand, cafe); cafe->pdev = pdev; cafe->mmio = pci_iomap(pdev, 0, 0); @@ -800,7 +800,7 @@ static void cafe_nand_remove(struct pci_dev *pdev) { struct mtd_info *mtd = pci_get_drvdata(pdev); struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); /* Disable NAND IRQ in global IRQ mask register */ cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK); @@ -828,7 +828,7 @@ static int cafe_nand_resume(struct pci_dev *pdev) uint32_t ctrl; struct mtd_info *mtd = pci_get_drvdata(pdev); struct nand_chip *chip = mtd_to_nand(mtd); - struct cafe_priv *cafe = chip->priv; + struct cafe_priv *cafe = nand_get_controller_data(chip); /* Start off by resetting the NAND controller completely */ cafe_writel(cafe, 1, NAND_RESET); diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 4f4aa3555a6f..f170f3c31b34 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -296,7 +296,7 @@ static inline int DoC_WaitReady(struct doc_priv *doc) static void doc2000_write_byte(struct mtd_info *mtd, u_char datum) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; if (debug) @@ -308,7 +308,7 @@ static void doc2000_write_byte(struct mtd_info *mtd, u_char datum) static u_char doc2000_read_byte(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; u_char ret; @@ -323,7 +323,7 @@ static u_char doc2000_read_byte(struct mtd_info *mtd) static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; if (debug) @@ -340,7 +340,7 @@ static void doc2000_writebuf(struct mtd_info *mtd, const u_char *buf, int len) static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -355,7 +355,7 @@ static void doc2000_readbuf(struct mtd_info *mtd, u_char *buf, int len) static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -376,7 +376,7 @@ static void doc2000_readbuf_dword(struct mtd_info *mtd, u_char *buf, int len) static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); uint16_t ret; doc200x_select_chip(mtd, nr); @@ -422,7 +422,7 @@ static uint16_t __init doc200x_ident_chip(struct mtd_info *mtd, int nr) static void __init doc2000_count_chips(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); uint16_t mfrid; int i; @@ -443,7 +443,7 @@ static void __init doc2000_count_chips(struct mtd_info *mtd) static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this) { - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); int status; @@ -458,7 +458,7 @@ static int doc200x_wait(struct mtd_info *mtd, struct nand_chip *this) static void doc2001_write_byte(struct mtd_info *mtd, u_char datum) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; WriteDOC(datum, docptr, CDSNSlowIO); @@ -469,7 +469,7 @@ static void doc2001_write_byte(struct mtd_info *mtd, u_char datum) static u_char doc2001_read_byte(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; //ReadDOC(docptr, CDSNSlowIO); @@ -483,7 +483,7 @@ static u_char doc2001_read_byte(struct mtd_info *mtd) static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -496,7 +496,7 @@ static void doc2001_writebuf(struct mtd_info *mtd, const u_char *buf, int len) static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -513,7 +513,7 @@ static void doc2001_readbuf(struct mtd_info *mtd, u_char *buf, int len) static u_char doc2001plus_read_byte(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; u_char ret; @@ -528,7 +528,7 @@ static u_char doc2001plus_read_byte(struct mtd_info *mtd) static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -546,7 +546,7 @@ static void doc2001plus_writebuf(struct mtd_info *mtd, const u_char *buf, int le static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; @@ -577,7 +577,7 @@ static void doc2001plus_readbuf(struct mtd_info *mtd, u_char *buf, int len) static void doc2001plus_select_chip(struct mtd_info *mtd, int chip) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int floor = 0; @@ -604,7 +604,7 @@ static void doc2001plus_select_chip(struct mtd_info *mtd, int chip) static void doc200x_select_chip(struct mtd_info *mtd, int chip) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int floor = 0; @@ -635,7 +635,7 @@ static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; if (ctrl & NAND_CTRL_CHANGE) { @@ -658,7 +658,7 @@ static void doc200x_hwcontrol(struct mtd_info *mtd, int cmd, static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; /* @@ -764,7 +764,7 @@ static void doc2001plus_command(struct mtd_info *mtd, unsigned command, int colu static int doc200x_dev_ready(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; if (DoC_is_MillenniumPlus(doc)) { @@ -804,7 +804,7 @@ static int doc200x_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; /* Prime the ECC engine */ @@ -823,7 +823,7 @@ static void doc200x_enable_hwecc(struct mtd_info *mtd, int mode) static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; /* Prime the ECC engine */ @@ -843,7 +843,7 @@ static void doc2001plus_enable_hwecc(struct mtd_info *mtd, int mode) static int doc200x_calculate_ecc(struct mtd_info *mtd, const u_char *dat, unsigned char *ecc_code) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; int i; int emptymatch = 1; @@ -904,7 +904,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, { int i, ret = 0; struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); void __iomem *docptr = doc->virtadr; uint8_t calc_ecc[6]; volatile u_char dummy; @@ -975,7 +975,7 @@ static struct nand_ecclayout doc200x_oobinfo = { static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const char *id, int findmirror) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); unsigned offs; int ret; size_t retlen; @@ -1018,7 +1018,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); int ret = 0; u_char *buf; struct NFTLMediaHeader *mh; @@ -1120,7 +1120,7 @@ static inline int __init nftl_partscan(struct mtd_info *mtd, struct mtd_partitio static inline int __init inftl_partscan(struct mtd_info *mtd, struct mtd_partition *parts) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); int ret = 0; u_char *buf; struct INFTLMediaHeader *mh; @@ -1240,7 +1240,7 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd) { int ret, numparts; struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); struct mtd_partition parts[2]; memset((char *)parts, 0, sizeof(parts)); @@ -1275,7 +1275,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) { int ret, numparts; struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); struct mtd_partition parts[5]; if (this->numchips > doc->chips_per_floor) { @@ -1328,7 +1328,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) static inline int __init doc2000_init(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); this->read_byte = doc2000_read_byte; this->write_buf = doc2000_writebuf; @@ -1344,7 +1344,7 @@ static inline int __init doc2000_init(struct mtd_info *mtd) static inline int __init doc2001_init(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); this->read_byte = doc2001_read_byte; this->write_buf = doc2001_writebuf; @@ -1374,7 +1374,7 @@ static inline int __init doc2001_init(struct mtd_info *mtd) static inline int __init doc2001plus_init(struct mtd_info *mtd) { struct nand_chip *this = mtd_to_nand(mtd); - struct doc_priv *doc = this->priv; + struct doc_priv *doc = nand_get_controller_data(this); this->read_byte = doc2001plus_read_byte; this->write_buf = doc2001plus_writebuf; @@ -1491,7 +1491,7 @@ static int __init doc_probe(unsigned long physadr) unsigned char oldval; unsigned char newval; nand = mtd_to_nand(mtd); - doc = nand->priv; + doc = nand_get_controller_data(nand); /* Use the alias resolution register to determine if this is in fact the same DOC aliased to a new address. If writes to one chip's alias resolution register change the value on @@ -1538,7 +1538,7 @@ static int __init doc_probe(unsigned long physadr) mtd->owner = THIS_MODULE; - nand->priv = doc; + nand_set_controller_data(nand, doc); nand->select_chip = doc200x_select_chip; nand->cmd_ctrl = doc200x_hwcontrol; nand->dev_ready = doc200x_dev_ready; @@ -1611,7 +1611,7 @@ static void release_nanddoc(void) for (mtd = doclist; mtd; mtd = nextmtd) { nand = mtd_to_nand(mtd); - doc = nand->priv; + doc = nand_get_controller_data(nand); nextmtd = doc->nextdoc; nand_release(mtd); diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 95cd139e8a40..df4165b02c62 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -297,7 +297,7 @@ static int poll_status(struct docg4_priv *doc) static int docg4_wait(struct mtd_info *mtd, struct nand_chip *nand) { - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); int status = NAND_STATUS_WP; /* inverse logic?? */ dev_dbg(doc->dev, "%s...\n", __func__); @@ -319,7 +319,7 @@ static void docg4_select_chip(struct mtd_info *mtd, int chip) * not yet supported, so the only valid non-negative value is 0. */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; dev_dbg(doc->dev, "%s: chip %d\n", __func__, chip); @@ -338,7 +338,7 @@ static void reset(struct mtd_info *mtd) /* full device reset */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; writew(DOC_ASICMODE_RESET | DOC_ASICMODE_MDWREN, @@ -376,7 +376,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; int i, numerrs, errpos[4]; const uint8_t blank_read_hwecc[8] = { @@ -465,7 +465,7 @@ static int correct_data(struct mtd_info *mtd, uint8_t *buf, int page) static uint8_t docg4_read_byte(struct mtd_info *mtd) { struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); dev_dbg(doc->dev, "%s\n", __func__); @@ -546,7 +546,7 @@ static int pageprog(struct mtd_info *mtd) */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; int retval = 0; @@ -583,7 +583,7 @@ static void sequence_reset(struct mtd_info *mtd) /* common starting sequence for all operations */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; writew(DOC_CTRL_UNKNOWN | DOC_CTRL_CE, docptr + DOC_FLASHCONTROL); @@ -600,7 +600,7 @@ static void read_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr) /* first step in reading a page */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; dev_dbg(doc->dev, @@ -627,7 +627,7 @@ static void write_page_prologue(struct mtd_info *mtd, uint32_t docg4_addr) /* first step in writing a page */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; dev_dbg(doc->dev, @@ -692,7 +692,7 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column, /* handle standard nand commands */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); uint32_t g4_addr = mtd_to_docg4_address(page_addr, column); dev_dbg(doc->dev, "%s %x, page_addr=%x, column=%x\n", @@ -756,7 +756,7 @@ static void docg4_command(struct mtd_info *mtd, unsigned command, int column, static int read_page(struct mtd_info *mtd, struct nand_chip *nand, uint8_t *buf, int page, bool use_ecc) { - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint16_t status, edc_err, *buf16; int bits_corrected = 0; @@ -836,7 +836,7 @@ static int docg4_read_page(struct mtd_info *mtd, struct nand_chip *nand, static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand, int page) { - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint16_t status; @@ -875,7 +875,7 @@ static int docg4_read_oob(struct mtd_info *mtd, struct nand_chip *nand, static int docg4_erase_block(struct mtd_info *mtd, int page) { struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint16_t g4_page; @@ -923,7 +923,7 @@ static int docg4_erase_block(struct mtd_info *mtd, int page) static int write_page(struct mtd_info *mtd, struct nand_chip *nand, const uint8_t *buf, bool use_ecc) { - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint8_t ecc_buf[8]; @@ -1003,7 +1003,7 @@ static int docg4_write_oob(struct mtd_info *mtd, struct nand_chip *nand, */ /* note that bytes 7..14 are hw generated hamming/ecc and overwritten */ - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); doc->oob_page = page; memcpy(doc->oob_buf, nand->oob_poi, 16); return 0; @@ -1017,7 +1017,7 @@ static int __init read_factory_bbt(struct mtd_info *mtd) */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); uint32_t g4_addr = mtd_to_docg4_address(DOCG4_FACTORY_BBT_PAGE, 0); uint8_t *buf; int i, block; @@ -1090,7 +1090,7 @@ static int docg4_block_markbad(struct mtd_info *mtd, loff_t ofs) int ret, i; uint8_t *buf; struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); struct nand_bbt_descr *bbtd = nand->badblock_pattern; int page = (int)(ofs >> nand->page_shift); uint32_t g4_addr = mtd_to_docg4_address(page, 0); @@ -1203,7 +1203,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd) */ struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); mtd->size = DOCG4_CHIP_SIZE; mtd->name = "Msys_Diskonchip_G4"; @@ -1262,7 +1262,7 @@ static void __init init_mtd_structs(struct mtd_info *mtd) static int __init read_id_reg(struct mtd_info *mtd) { struct nand_chip *nand = mtd_to_nand(mtd); - struct docg4_priv *doc = nand->priv; + struct docg4_priv *doc = nand_get_controller_data(nand); void __iomem *docptr = doc->virtadr; uint16_t id1, id2; @@ -1314,7 +1314,7 @@ static int __init probe_docg4(struct platform_device *pdev) mtd = nand_to_mtd(nand); doc = (struct docg4_priv *) (nand + 1); - nand->priv = doc; + nand_set_controller_data(nand, doc); mtd->dev.parent = &pdev->dev; doc->virtadr = virtadr; doc->dev = dev; diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index e96d5bcc2922..059d5f7ec124 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -144,7 +144,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; @@ -195,7 +195,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) static int fsl_elbc_run_command(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; @@ -267,7 +267,7 @@ static int fsl_elbc_run_command(struct mtd_info *mtd) static void fsl_elbc_do_read(struct nand_chip *chip, int oob) { - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; @@ -300,7 +300,7 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; @@ -525,7 +525,7 @@ static void fsl_elbc_select_chip(struct mtd_info *mtd, int chip) static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; unsigned int bufsize = mtd->writesize + mtd->oobsize; @@ -563,7 +563,7 @@ static void fsl_elbc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) static u8 fsl_elbc_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; /* If there are still bytes in the FCM, then use the next byte. */ @@ -580,7 +580,7 @@ static u8 fsl_elbc_read_byte(struct mtd_info *mtd) static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; int avail; @@ -604,7 +604,7 @@ static void fsl_elbc_read_buf(struct mtd_info *mtd, u8 *buf, int len) */ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip) { - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; if (elbc_fcm_ctrl->status != LTESR_CC) @@ -619,7 +619,7 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip) static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_lbc_regs __iomem *lbc = ctrl->regs; unsigned int al; @@ -696,7 +696,7 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) static int fsl_elbc_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct fsl_elbc_mtd *priv = chip->priv; + struct fsl_elbc_mtd *priv = nand_get_controller_data(chip); struct fsl_lbc_ctrl *ctrl = priv->ctrl; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = ctrl->nand; @@ -770,7 +770,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) chip->bbt_options = NAND_BBT_USE_FLASH; chip->controller = &elbc_fcm_ctrl->controller; - chip->priv = priv; + nand_set_controller_data(chip, priv); chip->ecc.read_page = fsl_elbc_read_page; chip->ecc.write_page = fsl_elbc_write_page; diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 9d2b4ed06c81..43f5a3a4873f 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -230,7 +230,7 @@ static struct nand_bbt_descr bbt_mirror_descr = { static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; int buf_num; @@ -253,7 +253,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) static int is_blank(struct mtd_info *mtd, unsigned int bufnum) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); u8 __iomem *addr = priv->vbase + bufnum * (mtd->writesize * 2); u32 __iomem *mainarea = (u32 __iomem *)addr; u8 __iomem *oob = addr + mtd->writesize; @@ -292,7 +292,7 @@ static int check_read_ecc(struct mtd_info *mtd, struct fsl_ifc_ctrl *ctrl, static void fsl_ifc_run_command(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; @@ -369,7 +369,7 @@ static void fsl_ifc_do_read(struct nand_chip *chip, int oob, struct mtd_info *mtd) { - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; @@ -409,7 +409,7 @@ static void fsl_ifc_do_read(struct nand_chip *chip, static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; @@ -624,7 +624,7 @@ static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip) static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); unsigned int bufsize = mtd->writesize + mtd->oobsize; if (len <= 0) { @@ -650,7 +650,7 @@ static void fsl_ifc_write_buf(struct mtd_info *mtd, const u8 *buf, int len) static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); unsigned int offset; /* @@ -673,7 +673,7 @@ static uint8_t fsl_ifc_read_byte(struct mtd_info *mtd) static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); uint16_t data; /* @@ -696,7 +696,7 @@ static uint8_t fsl_ifc_read_byte16(struct mtd_info *mtd) static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); int avail; if (len < 0) { @@ -721,7 +721,7 @@ static void fsl_ifc_read_buf(struct mtd_info *mtd, u8 *buf, int len) */ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip) { - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_regs __iomem *ifc = ctrl->regs; u32 nand_fsr; @@ -750,7 +750,7 @@ static int fsl_ifc_wait(struct mtd_info *mtd, struct nand_chip *chip) static int fsl_ifc_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); struct fsl_ifc_ctrl *ctrl = priv->ctrl; struct fsl_ifc_nand_ctrl *nctrl = ifc_nand_ctrl; @@ -782,7 +782,7 @@ static int fsl_ifc_write_page(struct mtd_info *mtd, struct nand_chip *chip, static int fsl_ifc_chip_init_tail(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct fsl_ifc_mtd *priv = chip->priv; + struct fsl_ifc_mtd *priv = nand_get_controller_data(chip); dev_dbg(priv->dev, "%s: nand->numchips = %d\n", __func__, chip->numchips); @@ -914,7 +914,7 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv) } chip->controller = &ifc_nand_ctrl->controller; - chip->priv = priv; + nand_set_controller_data(chip, priv); chip->ecc.read_page = fsl_ifc_read_page; chip->ecc.write_page = fsl_ifc_write_page; diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 9a7c1f5ffcaa..1bdcd4fa26d4 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -1009,7 +1009,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) /* Link all private pointers */ mtd = nand_to_mtd(&host->nand); nand = &host->nand; - nand->priv = host; + nand_set_controller_data(nand, host); nand_set_flash_node(nand, np); mtd->dev.parent = &pdev->dev; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index df61f49d3770..235ddcb58f39 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -857,7 +857,7 @@ error_alloc: static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); int ret; /* @@ -891,7 +891,7 @@ static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl) static int gpmi_dev_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); return gpmi_is_ready(this, this->current_chip); } @@ -899,7 +899,7 @@ static int gpmi_dev_ready(struct mtd_info *mtd) static void gpmi_select_chip(struct mtd_info *mtd, int chipnr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); if ((this->current_chip < 0) && (chipnr >= 0)) gpmi_begin(this); @@ -912,7 +912,7 @@ static void gpmi_select_chip(struct mtd_info *mtd, int chipnr) static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); dev_dbg(this->dev, "len is %d\n", len); this->upper_buf = buf; @@ -924,7 +924,7 @@ static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); dev_dbg(this->dev, "len is %d\n", len); this->upper_buf = (uint8_t *)buf; @@ -936,7 +936,7 @@ static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static uint8_t gpmi_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); uint8_t *buf = this->data_buffer_dma; gpmi_read_buf(mtd, buf, 1); @@ -994,7 +994,7 @@ static void block_mark_swapping(struct gpmi_nand_data *this, static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); struct bch_geometry *nfc_geo = &this->bch_geometry; void *payload_virt; dma_addr_t payload_phys; @@ -1074,7 +1074,7 @@ static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, static int gpmi_ecc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint32_t offs, uint32_t len, uint8_t *buf, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); void __iomem *bch_regs = this->resources.bch_regs; struct bch_geometry old_geo = this->bch_geometry; struct bch_geometry *geo = &this->bch_geometry; @@ -1162,7 +1162,7 @@ static int gpmi_ecc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, static int gpmi_ecc_write_page(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int oob_required, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); struct bch_geometry *nfc_geo = &this->bch_geometry; const void *payload_virt; dma_addr_t payload_phys; @@ -1298,7 +1298,7 @@ exit_auxiliary: static int gpmi_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *chip, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); dev_dbg(this->dev, "page number is %d\n", page); /* clear the OOB buffer */ @@ -1359,7 +1359,7 @@ static int gpmi_ecc_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); struct bch_geometry *nfc_geo = &this->bch_geometry; int eccsize = nfc_geo->ecc_chunk_size; int eccbits = nfc_geo->ecc_strength * nfc_geo->gf_len; @@ -1448,7 +1448,7 @@ static int gpmi_ecc_write_page_raw(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); struct bch_geometry *nfc_geo = &this->bch_geometry; int eccsize = nfc_geo->ecc_chunk_size; int eccbits = nfc_geo->ecc_strength * nfc_geo->gf_len; @@ -1539,7 +1539,7 @@ static int gpmi_ecc_write_oob_raw(struct mtd_info *mtd, struct nand_chip *chip, static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs) { struct nand_chip *chip = mtd_to_nand(mtd); - struct gpmi_nand_data *this = chip->priv; + struct gpmi_nand_data *this = nand_get_controller_data(chip); int ret = 0; uint8_t *block_mark; int column, page, status, chipnr; @@ -1897,7 +1897,7 @@ static int gpmi_nand_init(struct gpmi_nand_data *this) mtd->dev.parent = this->dev; /* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */ - chip->priv = this; + nand_set_controller_data(chip, this); nand_set_flash_node(chip, this->pdev->dev.of_node); chip->select_chip = gpmi_select_chip; chip->cmd_ctrl = gpmi_cmd_ctrl; diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index 2aee212b6169..f8d37f36a81c 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -357,7 +357,7 @@ static int hisi_nfc_send_cmd_reset(struct hinfc_host *host, int chipselect) static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); if (chipselect < 0) return; @@ -368,7 +368,7 @@ static void hisi_nfc_select_chip(struct mtd_info *mtd, int chipselect) static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); if (host->command == NAND_CMD_STATUS) return *(uint8_t *)(host->mmio); @@ -384,7 +384,7 @@ static uint8_t hisi_nfc_read_byte(struct mtd_info *mtd) static u16 hisi_nfc_read_word(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); host->offset += 2; return *(u16 *)(host->buffer + host->offset - 2); @@ -394,7 +394,7 @@ static void hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); memcpy(host->buffer + host->offset, buf, len); host->offset += len; @@ -403,7 +403,7 @@ hisi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); memcpy(buf, host->buffer + host->offset, len); host->offset += len; @@ -412,7 +412,7 @@ static void hisi_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void set_addr(struct mtd_info *mtd, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); unsigned int command = host->command; host->addr_cycle = 0; @@ -448,7 +448,7 @@ static void hisi_nfc_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); int is_cache_invalid = 1; unsigned int flag = 0; @@ -542,7 +542,7 @@ static irqreturn_t hinfc_irq_handle(int irq, void *devid) static int hisi_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); int max_bitflips = 0, stat = 0, stat_max = 0, status_ecc; int stat_1, stat_2; @@ -574,7 +574,7 @@ static int hisi_nand_read_page_hwecc(struct mtd_info *mtd, static int hisi_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, int page) { - struct hinfc_host *host = chip->priv; + struct hinfc_host *host = nand_get_controller_data(chip); chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page); chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); @@ -738,7 +738,7 @@ static int hisi_nfc_probe(struct platform_device *pdev) mtd->name = "hisi_nand"; mtd->dev.parent = &pdev->dev; - chip->priv = host; + nand_set_controller_data(chip, host); nand_set_flash_node(chip, np); chip->cmdfunc = hisi_nfc_cmdfunc; chip->select_chip = hisi_nfc_select_chip; diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index db59fa28d5c8..9bc435d72a86 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -275,7 +275,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = nand_chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip); if (cmd != NAND_CMD_NONE) { if (ctrl & NAND_CLE) @@ -291,7 +291,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, static int lpc32xx_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = nand_chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(nand_chip); if ((readb(MLC_ISR(host->io_base)) & (MLCISR_CONTROLLER_READY | MLCISR_NAND_READY)) == @@ -317,7 +317,7 @@ static irqreturn_t lpc3xxx_nand_irq(int irq, struct lpc32xx_nand_host *host) static int lpc32xx_waitfunc_nand(struct mtd_info *mtd, struct nand_chip *chip) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); if (readb(MLC_ISR(host->io_base)) & MLCISR_NAND_READY) goto exit; @@ -337,7 +337,7 @@ exit: static int lpc32xx_waitfunc_controller(struct mtd_info *mtd, struct nand_chip *chip) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); if (readb(MLC_ISR(host->io_base)) & MLCISR_CONTROLLER_READY) goto exit; @@ -389,7 +389,7 @@ static int lpc32xx_xmit_dma(struct mtd_info *mtd, void *mem, int len, enum dma_transfer_direction dir) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); struct dma_async_tx_descriptor *desc; int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; int res; @@ -430,7 +430,7 @@ out1: static int lpc32xx_read_page(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); int i, j; uint8_t *oobbuf = chip->oob_poi; uint32_t mlc_isr; @@ -497,7 +497,7 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); const uint8_t *oobbuf = chip->oob_poi; uint8_t *dma_buf = (uint8_t *)buf; int res; @@ -542,7 +542,7 @@ static int lpc32xx_write_page_lowlevel(struct mtd_info *mtd, static int lpc32xx_read_oob(struct mtd_info *mtd, struct nand_chip *chip, int page) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); /* Read whole page - necessary with MLC controller! */ lpc32xx_read_page(mtd, chip, host->dummy_buf, 1, page); @@ -679,7 +679,8 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) host->pdata = dev_get_platdata(&pdev->dev); - nand_chip->priv = host; /* link the private data structures */ + /* link the private data structures */ + nand_set_controller_data(nand_chip, host); nand_set_flash_node(nand_chip, pdev->dev.of_node); mtd->dev.parent = &pdev->dev; diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index ccd10b182a22..3b8f3735f3e8 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -260,7 +260,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, { uint32_t tmp; struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); /* Does CE state need to be changed? */ tmp = readl(SLC_CFG(host->io_base)); @@ -284,7 +284,7 @@ static void lpc32xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, static int lpc32xx_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); int rdy = 0; if ((readl(SLC_STAT(host->io_base)) & SLCSTAT_NAND_READY) != 0) @@ -339,7 +339,7 @@ static int lpc32xx_nand_ecc_calculate(struct mtd_info *mtd, static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); return (uint8_t)readl(SLC_DATA(host->io_base)); } @@ -350,7 +350,7 @@ static uint8_t lpc32xx_nand_read_byte(struct mtd_info *mtd) static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); /* Direct device read with no ECC */ while (len-- > 0) @@ -363,7 +363,7 @@ static void lpc32xx_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void lpc32xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); /* Direct device write with no ECC */ while (len-- > 0) @@ -428,7 +428,7 @@ static int lpc32xx_xmit_dma(struct mtd_info *mtd, dma_addr_t dma, void *mem, int len, enum dma_transfer_direction dir) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); struct dma_async_tx_descriptor *desc; int flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT; int res; @@ -488,7 +488,7 @@ static int lpc32xx_xfer(struct mtd_info *mtd, uint8_t *buf, int eccsubpages, int read) { struct nand_chip *chip = mtd_to_nand(mtd); - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); int i, status = 0; unsigned long timeout; int res; @@ -603,7 +603,7 @@ static int lpc32xx_nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); int stat, i, status; uint8_t *oobecc, tmpecc[LPC32XX_ECC_SAVE_SIZE]; @@ -665,7 +665,7 @@ static int lpc32xx_nand_write_page_syndrome(struct mtd_info *mtd, const uint8_t *buf, int oob_required, int page) { - struct lpc32xx_nand_host *host = chip->priv; + struct lpc32xx_nand_host *host = nand_get_controller_data(chip); uint8_t *pb = chip->oob_poi + chip->ecc.layout->eccpos[0]; int error; @@ -800,7 +800,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) chip = &host->nand_chip; mtd = nand_to_mtd(chip); - chip->priv = host; + nand_set_controller_data(chip, host); nand_set_flash_node(chip, pdev->dev.of_node); mtd->owner = THIS_MODULE; mtd->dev.parent = &pdev->dev; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 6d0ca33dd7ab..6b93e899d4e9 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -135,7 +135,7 @@ static void mpc5121_nfc_done(struct mtd_info *mtd); static inline u16 nfc_read(struct mtd_info *mtd, uint reg) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); return in_be16(prv->regs + reg); } @@ -144,7 +144,7 @@ static inline u16 nfc_read(struct mtd_info *mtd, uint reg) static inline void nfc_write(struct mtd_info *mtd, uint reg, u16 val) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); out_be16(prv->regs + reg, val); } @@ -214,7 +214,7 @@ static irqreturn_t mpc5121_nfc_irq(int irq, void *data) { struct mtd_info *mtd = data; struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); nfc_set(mtd, NFC_CONFIG1, NFC_INT_MASK); wake_up(&prv->irq_waitq); @@ -226,7 +226,7 @@ static irqreturn_t mpc5121_nfc_irq(int irq, void *data) static void mpc5121_nfc_done(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); int rv; if ((nfc_read(mtd, NFC_CONFIG2) & NFC_INT) == 0) { @@ -281,7 +281,7 @@ static void mpc5121_nfc_select_chip(struct mtd_info *mtd, int chip) static int ads5121_chipselect_init(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); struct device_node *dn; dn = of_find_compatible_node(NULL, NULL, "fsl,mpc5121ads-cpld"); @@ -303,7 +303,7 @@ static int ads5121_chipselect_init(struct mtd_info *mtd) static void ads5121_select_chip(struct mtd_info *mtd, int chip) { struct nand_chip *nand = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = nand->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand); u8 v; v = in_8(prv->csreg); @@ -333,7 +333,7 @@ static void mpc5121_nfc_command(struct mtd_info *mtd, unsigned command, int column, int page) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); prv->column = (column >= 0) ? column : 0; prv->spareonly = 0; @@ -406,7 +406,7 @@ static void mpc5121_nfc_copy_spare(struct mtd_info *mtd, uint offset, u8 *buffer, uint size, int wr) { struct nand_chip *nand = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = nand->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(nand); uint o, s, sbsize, blksize; /* @@ -458,7 +458,7 @@ static void mpc5121_nfc_buf_copy(struct mtd_info *mtd, u_char *buf, int len, int wr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); uint c = prv->column; uint l; @@ -536,7 +536,7 @@ static u16 mpc5121_nfc_read_word(struct mtd_info *mtd) static int mpc5121_nfc_read_hw_config(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); struct mpc512x_reset_module *rm; struct device_node *rmnode; uint rcw_pagesize = 0; @@ -615,7 +615,7 @@ out: static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mpc5121_nfc_prv *prv = chip->priv; + struct mpc5121_nfc_prv *prv = nand_get_controller_data(chip); if (prv->clk) clk_disable_unprepare(prv->clk); @@ -657,7 +657,7 @@ static int mpc5121_nfc_probe(struct platform_device *op) mtd = nand_to_mtd(chip); mtd->dev.parent = dev; - chip->priv = prv; + nand_set_controller_data(chip, prv); nand_set_flash_node(chip, dn); prv->dev = dev; diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 66e56bb22c0f..854c832597aa 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -532,7 +532,7 @@ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas static void send_page_v3(struct mtd_info *mtd, unsigned int ops) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); uint32_t tmp; tmp = readl(NFC_V3_CONFIG1); @@ -548,7 +548,7 @@ static void send_page_v3(struct mtd_info *mtd, unsigned int ops) static void send_page_v2(struct mtd_info *mtd, unsigned int ops) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); /* NANDFC buffer 0 is used for page read/write */ writew(host->active_cs << 4, NFC_V1_V2_BUF_ADDR); @@ -562,7 +562,7 @@ static void send_page_v2(struct mtd_info *mtd, unsigned int ops) static void send_page_v1(struct mtd_info *mtd, unsigned int ops) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); int bufs, i; if (mtd->writesize > 512) @@ -663,7 +663,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); /* * 1-Bit errors are automatically corrected in HW. No need for @@ -684,7 +684,7 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); u32 ecc_stat, err; int no_subpages = 1; int ret = 0; @@ -722,7 +722,7 @@ static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, static u_char mxc_nand_read_byte(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); uint8_t ret; /* Check for status request */ @@ -746,7 +746,7 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd) static uint16_t mxc_nand_read_word(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); uint16_t ret; ret = *(uint16_t *)(host->data_buf + host->buf_start); @@ -762,7 +762,7 @@ static void mxc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); u16 col = host->buf_start; int n = mtd->oobsize + mtd->writesize - col; @@ -780,7 +780,7 @@ static void mxc_nand_write_buf(struct mtd_info *mtd, static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); u16 col = host->buf_start; int n = mtd->oobsize + mtd->writesize - col; @@ -796,7 +796,7 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); if (chip == -1) { /* Disable the NFC clock */ @@ -817,7 +817,7 @@ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip) static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); if (chip == -1) { /* Disable the NFC clock */ @@ -850,7 +850,7 @@ static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip) static void copy_spare(struct mtd_info *mtd, bool bfrom) { struct nand_chip *this = mtd_to_nand(mtd); - struct mxc_nand_host *host = this->priv; + struct mxc_nand_host *host = nand_get_controller_data(this); u16 i, oob_chunk_size; u16 num_chunks = mtd->writesize / 512; @@ -893,7 +893,7 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom) static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); /* Write out column address, if necessary */ if (column != -1) { @@ -979,7 +979,7 @@ static void ecc_8bit_layout_4k(struct nand_ecclayout *layout) static void preset_v1(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); uint16_t config1 = 0; if (nand_chip->ecc.mode == NAND_ECC_HW && mtd->writesize) @@ -1007,7 +1007,7 @@ static void preset_v1(struct mtd_info *mtd) static void preset_v2(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); uint16_t config1 = 0; config1 |= NFC_V2_CONFIG1_FP_INT; @@ -1053,7 +1053,7 @@ static void preset_v2(struct mtd_info *mtd) static void preset_v3(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(chip); uint32_t config2, config3; int i, addr_phases; @@ -1124,7 +1124,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct mxc_nand_host *host = nand_chip->priv; + struct mxc_nand_host *host = nand_get_controller_data(nand_chip); pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n", command, column, page_addr); @@ -1520,7 +1520,7 @@ static int mxcnd_probe(struct platform_device *pdev) /* 50 us command delay time */ this->chip_delay = 5; - this->priv = host; + nand_set_controller_data(this, host); nand_set_flash_node(this, pdev->dev.of_node), this->dev_ready = mxc_nand_dev_ready; this->cmdfunc = mxc_nand_command; diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 78de37ddf88b..f57f461b5d72 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -667,7 +667,7 @@ static char *get_partition_name(int i) static int init_nandsim(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct nandsim *ns = chip->priv; + struct nandsim *ns = nand_get_controller_data(chip); int i, ret = 0; uint64_t remains; uint64_t next_offset; @@ -2244,7 +2244,7 @@ static int __init ns_init_module(void) } nsmtd = nand_to_mtd(chip); nand = (struct nandsim *)(chip + 1); - chip->priv = (void *)nand; + nand_set_controller_data(chip, (void *)nand); /* * Register simulator's callbacks. diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 7d72f4fe06a1..218c789ca7ab 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -48,7 +48,7 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip) { uint32_t ccr; struct nand_chip *nchip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = nchip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(nchip); ccr = in_be32(ndfc->ndfcbase + NDFC_CCR); if (chip >= 0) { @@ -62,7 +62,7 @@ static void ndfc_select_chip(struct mtd_info *mtd, int chip) static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); if (cmd == NAND_CMD_NONE) return; @@ -76,7 +76,7 @@ static void ndfc_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) static int ndfc_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); return in_be32(ndfc->ndfcbase + NDFC_STAT) & NDFC_STAT_IS_READY; } @@ -85,7 +85,7 @@ static void ndfc_enable_hwecc(struct mtd_info *mtd, int mode) { uint32_t ccr; struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); ccr = in_be32(ndfc->ndfcbase + NDFC_CCR); ccr |= NDFC_CCR_RESET_ECC; @@ -97,7 +97,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code) { struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); uint32_t ecc; uint8_t *p = (uint8_t *)&ecc; @@ -121,7 +121,7 @@ static int ndfc_calculate_ecc(struct mtd_info *mtd, static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); uint32_t *p = (uint32_t *) buf; for(;len > 0; len -= 4) @@ -131,7 +131,7 @@ static void ndfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void ndfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct ndfc_controller *ndfc = chip->priv; + struct ndfc_controller *ndfc = nand_get_controller_data(chip); uint32_t *p = (uint32_t *) buf; for(;len > 0; len -= 4) @@ -165,7 +165,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, chip->ecc.size = 256; chip->ecc.bytes = 3; chip->ecc.strength = 1; - chip->priv = ndfc; + nand_set_controller_data(chip, ndfc); mtd->dev.parent = &ndfc->ofdev->dev; diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 2c2be612448e..d4614bfbfed6 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -26,7 +26,7 @@ static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nc = mtd_to_nand(mtd); - struct orion_nand_data *board = nc->priv; + struct orion_nand_data *board = nand_get_controller_data(nc); u32 offs; if (cmd == NAND_CMD_NONE) @@ -124,7 +124,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) mtd->dev.parent = &pdev->dev; - nc->priv = board; + nand_set_controller_data(nc, board); nand_set_flash_node(nc, pdev->dev.of_node); nc->IO_ADDR_R = nc->IO_ADDR_W = io_base; nc->cmd_ctrl = orion_nand_cmd_ctrl; diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 10704ae129fc..86fc245dc71a 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1114,7 +1114,7 @@ static void nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; int exec_cmd; @@ -1163,7 +1163,7 @@ static void nand_cmdfunc_extended(struct mtd_info *mtd, int column, int page_addr) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; int exec_cmd, ext_cmd_type; @@ -1283,7 +1283,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int oob_required, int page) { - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; chip->read_buf(mtd, buf, mtd->writesize); @@ -1310,7 +1310,7 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; char retval = 0xFF; @@ -1324,7 +1324,7 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; u16 retval = 0xFFFF; @@ -1338,7 +1338,7 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1350,7 +1350,7 @@ static void pxa3xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); @@ -1366,7 +1366,7 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip) static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; if (info->need_wait) { @@ -1573,7 +1573,7 @@ static int pxa_ecc_init(struct pxa3xx_nand_info *info, static int pxa3xx_nand_scan(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct pxa3xx_nand_host *host = chip->priv; + struct pxa3xx_nand_host *host = nand_get_controller_data(chip); struct pxa3xx_nand_info *info = host->info_data; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = dev_get_platdata(&pdev->dev); @@ -1704,7 +1704,7 @@ static int alloc_nand_resource(struct platform_device *pdev) for (cs = 0; cs < pdata->num_cs; cs++) { host = (void *)&info[1] + sizeof(*host) * cs; chip = &host->chip; - chip->priv = host; + nand_set_controller_data(chip, host); mtd = nand_to_mtd(chip); info->host[cs] = host; host->cs = cs; @@ -1713,7 +1713,7 @@ static int alloc_nand_resource(struct platform_device *pdev) /* FIXME: all chips use the same device tree partitions */ nand_set_flash_node(chip, np); - chip->priv = host; + nand_set_controller_data(chip, host); chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; chip->controller = &info->controller; diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 5b15f2faee38..fc9287af4614 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -65,7 +65,7 @@ static inline void r852_write_reg_dword(struct r852_device *dev, static inline struct r852_device *r852_get_dev(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - return chip->priv; + return nand_get_controller_data(chip); } @@ -361,7 +361,7 @@ static void r852_cmdctl(struct mtd_info *mtd, int dat, unsigned int ctrl) */ static int r852_wait(struct mtd_info *mtd, struct nand_chip *chip) { - struct r852_device *dev = chip->priv; + struct r852_device *dev = nand_get_controller_data(chip); unsigned long timeout; int status; @@ -879,7 +879,7 @@ static int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) if (!dev) goto error5; - chip->priv = dev; + nand_set_controller_data(chip, dev); dev->chip = chip; dev->pci_dev = pci_dev; pci_set_drvdata(pci_dev, dev); diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index bc94c5db01bf..01ac74fa3b95 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -385,7 +385,7 @@ static void s3c2410_nand_select_chip(struct mtd_info *mtd, int chip) struct nand_chip *this = mtd_to_nand(mtd); unsigned long cur; - nmtd = this->priv; + nmtd = nand_get_controller_data(this); info = nmtd->info; if (chip != -1) @@ -794,7 +794,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, chip->read_buf = s3c2410_nand_read_buf; chip->select_chip = s3c2410_nand_select_chip; chip->chip_delay = 50; - chip->priv = nmtd; + nand_set_controller_data(chip, nmtd); chip->options = set->options; chip->controller = &info->controller; diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index d7e9d4df8c28..e3305f9dd6fb 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -45,7 +45,7 @@ static void socrates_nand_write_buf(struct mtd_info *mtd, { int i; struct nand_chip *this = mtd_to_nand(mtd); - struct socrates_nand_host *host = this->priv; + struct socrates_nand_host *host = nand_get_controller_data(this); for (i = 0; i < len; i++) { out_be32(host->io_base, FPGA_NAND_ENABLE | @@ -64,7 +64,7 @@ static void socrates_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { int i; struct nand_chip *this = mtd_to_nand(mtd); - struct socrates_nand_host *host = this->priv; + struct socrates_nand_host *host = nand_get_controller_data(this); uint32_t val; val = FPGA_NAND_ENABLE | FPGA_NAND_CMD_READ; @@ -105,7 +105,7 @@ static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct socrates_nand_host *host = nand_chip->priv; + struct socrates_nand_host *host = nand_get_controller_data(nand_chip); uint32_t val; if (cmd == NAND_CMD_NONE) @@ -130,7 +130,7 @@ static void socrates_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, static int socrates_nand_device_ready(struct mtd_info *mtd) { struct nand_chip *nand_chip = mtd_to_nand(mtd); - struct socrates_nand_host *host = nand_chip->priv; + struct socrates_nand_host *host = nand_get_controller_data(nand_chip); if (in_be32(host->io_base) & FPGA_NAND_BUSY) return 0; /* busy */ @@ -162,7 +162,8 @@ static int socrates_nand_probe(struct platform_device *ofdev) mtd = nand_to_mtd(nand_chip); host->dev = &ofdev->dev; - nand_chip->priv = host; /* link the private data structures */ + /* link the private data structures */ + nand_set_controller_data(nand_chip, host); nand_set_flash_node(nand_chip, ofdev->dev.of_node); mtd->name = "socrates_nand"; mtd->dev.parent = &ofdev->dev; diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index 27488ee44386..04d63f56baa4 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -79,7 +79,7 @@ struct txx9ndfmc_drvdata { static struct platform_device *mtd_to_platdev(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct txx9ndfmc_priv *txx9_priv = chip->priv; + struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip); return txx9_priv->dev; } @@ -135,7 +135,7 @@ static void txx9ndfmc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *chip = mtd_to_nand(mtd); - struct txx9ndfmc_priv *txx9_priv = chip->priv; + struct txx9ndfmc_priv *txx9_priv = nand_get_controller_data(chip); struct platform_device *dev = txx9_priv->dev; struct txx9ndfmc_platform_data *plat = dev_get_platdata(&dev->dev); @@ -340,7 +340,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) chip->chip_delay = 100; chip->controller = &drvdata->hw_control; - chip->priv = txx9_priv; + nand_set_controller_data(chip, txx9_priv); txx9_priv->dev = dev; if (plat->ch_mask != 1) { @@ -389,7 +389,7 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev) if (!mtd) continue; chip = mtd_to_nand(mtd); - txx9_priv = chip->priv; + txx9_priv = nand_get_controller_data(chip); nand_release(mtd); kfree(txx9_priv->mtdname); -- cgit v1.2.3 From f07dcb90e4a9ccab9663a50847f255c9b0e2ada1 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 10 Dec 2015 09:00:42 +0100 Subject: staging: mt29f_spinand: make use of nand_set/get_controller_data() helpers New helpers have been added to avoid directly accessing chip->field. Use them where appropriate. Signed-off-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/staging/mt29f_spinand/mt29f_spinand.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c index b7d429d45dab..197d1124733d 100644 --- a/drivers/staging/mt29f_spinand/mt29f_spinand.c +++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c @@ -32,7 +32,7 @@ static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd) { struct nand_chip *chip = mtd_to_nand(mtd); - struct spinand_info *info = (struct spinand_info *)chip->priv; + struct spinand_info *info = nand_get_controller_data(chip); struct spinand_state *state = (struct spinand_state *)info->priv; return state; @@ -633,7 +633,7 @@ static int spinand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, u8 *p = buf; int eccsize = chip->ecc.size; int eccsteps = chip->ecc.steps; - struct spinand_info *info = (struct spinand_info *)chip->priv; + struct spinand_info *info = nand_get_controller_data(chip); enable_read_hw_ecc = 1; @@ -679,7 +679,7 @@ static u8 spinand_read_byte(struct mtd_info *mtd) static int spinand_wait(struct mtd_info *mtd, struct nand_chip *chip) { - struct spinand_info *info = (struct spinand_info *)chip->priv; + struct spinand_info *info = nand_get_controller_data(chip); unsigned long timeo = jiffies; int retval, state = chip->state; @@ -745,7 +745,7 @@ static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command, int column, int page) { struct nand_chip *chip = mtd_to_nand(mtd); - struct spinand_info *info = (struct spinand_info *)chip->priv; + struct spinand_info *info = nand_get_controller_data(chip); struct spinand_state *state = (struct spinand_state *)info->priv; switch (command) { @@ -894,7 +894,7 @@ static int spinand_probe(struct spi_device *spi_nand) #endif nand_set_flash_node(chip, spi_nand->dev.of_node); - chip->priv = info; + nand_set_controller_data(chip, info); chip->read_buf = spinand_read_buf; chip->write_buf = spinand_write_buf; chip->read_byte = spinand_read_byte; -- cgit v1.2.3 From f118902490aa1c3a361e485dd38a7b28cd130d71 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 7 Jan 2016 10:02:59 -0800 Subject: mtd: jz4780_nand: remove useless mtd->priv = chip assignment As of commit 2d3b77bac34b ("mtd: nand: update mtd_to_nand()"), this assignment isn't necessary, since struct mtd_info is embedded in struct nand_chip. Signed-off-by: Brian Norris Cc: Harvey Hunt Cc: Alex Smith Reviewed-by: Boris Brezillon --- drivers/mtd/nand/jz4780_nand.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c index 17eb9f264187..6156c554e1c2 100644 --- a/drivers/mtd/nand/jz4780_nand.c +++ b/drivers/mtd/nand/jz4780_nand.c @@ -270,7 +270,6 @@ static int jz4780_nand_init_chip(struct platform_device *pdev, chip = &nand->chip; mtd = nand_to_mtd(chip); - mtd->priv = chip; mtd->name = devm_kasprintf(dev, GFP_KERNEL, "%s.%d", dev_name(dev), cs->bank); if (!mtd->name) -- cgit v1.2.3 From c66b651ce60bb82d8f6fe8ca35e70f323e3a260c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 7 Jan 2016 11:06:46 -0800 Subject: mtd: nandsim: use nand_get_controller_data() Commit d699ed250c07 ("mtd: nand: make use of nand_set/get_controller_data() helpers") overlooked some uses of nand_chip::priv. Signed-off-by: Brian Norris Reviewed-by: Boris Brezillon --- drivers/mtd/nand/nandsim.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index f57f461b5d72..1fd519503bb1 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -1908,7 +1908,8 @@ static void switch_state(struct nandsim *ns) static u_char ns_nand_read_byte(struct mtd_info *mtd) { - struct nandsim *ns = mtd_to_nand(mtd)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); u_char outb = 0x00; /* Sanity and correctness checks */ @@ -1969,7 +1970,8 @@ static u_char ns_nand_read_byte(struct mtd_info *mtd) static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) { - struct nandsim *ns = mtd_to_nand(mtd)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2123,7 +2125,8 @@ static void ns_nand_write_byte(struct mtd_info *mtd, u_char byte) static void ns_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int bitmask) { - struct nandsim *ns = mtd_to_nand(mtd)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); ns->lines.cle = bitmask & NAND_CLE ? 1 : 0; ns->lines.ale = bitmask & NAND_ALE ? 1 : 0; @@ -2150,7 +2153,8 @@ static uint16_t ns_nand_read_word(struct mtd_info *mtd) static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { - struct nandsim *ns = mtd_to_nand(mtd)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Check that chip is expecting data input */ if (!(ns->state & STATE_DATAIN_MASK)) { @@ -2177,7 +2181,8 @@ static void ns_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len) static void ns_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len) { - struct nandsim *ns = mtd_to_nand(mtd)->priv; + struct nand_chip *chip = mtd_to_nand(mtd); + struct nandsim *ns = nand_get_controller_data(chip); /* Sanity and correctness checks */ if (!ns->lines.ce) { @@ -2404,7 +2409,8 @@ module_init(ns_init_module); */ static void __exit ns_cleanup_module(void) { - struct nandsim *ns = mtd_to_nand(nsmtd)->priv; + struct nand_chip *chip = mtd_to_nand(nsmtd); + struct nandsim *ns = nand_get_controller_data(chip); int i; nandsim_debugfs_remove(ns); -- cgit v1.2.3 From 6c1207b5b8422cdddf467b9fbef922c4c374d382 Mon Sep 17 00:00:00 2001 From: Harvey Hunt Date: Fri, 8 Jan 2016 16:45:17 +0000 Subject: mtd: nand: jz4780: Update ecc correction error codes Update jz4780_bch_ecc_correct's return codes with appropriate values, as specified in /include/linux/mtd/nand.h. Signed-off-by: Harvey Hunt Cc: Alex Smith Cc: Boris Brezillon Cc: linux-kernel@vger.kernel.org Reviewed-by: Boris Brezillon Signed-off-by: Brian Norris --- drivers/mtd/nand/jz4780_bch.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/nand/jz4780_bch.c b/drivers/mtd/nand/jz4780_bch.c index 5954fbfa29e9..755499c6650e 100644 --- a/drivers/mtd/nand/jz4780_bch.c +++ b/drivers/mtd/nand/jz4780_bch.c @@ -210,8 +210,8 @@ EXPORT_SYMBOL(jz4780_bch_calculate); * Given the raw data and the ECC read from the NAND device, detects and * corrects errors in the data. * - * Return: the number of bit errors corrected, or -1 if there are too many - * errors to correct or we timed out waiting for the controller. + * Return: the number of bit errors corrected, -EBADMSG if there are too many + * errors to correct or -ETIMEDOUT if we timed out waiting for the controller. */ int jz4780_bch_correct(struct jz4780_bch *bch, struct jz4780_bch_params *params, u8 *buf, u8 *ecc_code) @@ -227,13 +227,13 @@ int jz4780_bch_correct(struct jz4780_bch *bch, struct jz4780_bch_params *params, if (!jz4780_bch_wait_complete(bch, BCH_BHINT_DECF, ®)) { dev_err(bch->dev, "timed out while correcting data\n"); - ret = -1; + ret = -ETIMEDOUT; goto out; } if (reg & BCH_BHINT_UNCOR) { dev_warn(bch->dev, "uncorrectable ECC error\n"); - ret = -1; + ret = -EBADMSG; goto out; } -- cgit v1.2.3 From 9146cbd52b11d4ade62dba8f238ec5e421c3fa2b Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 7 Jan 2016 09:53:08 -0800 Subject: mtd: jz4780_nand: replace if/else blocks with switch/case Using switch/case helps make this logic more clear and more robust. With this structure: * it's clear that this driver only support ECC_{HW,SOFT,SOFT_BCH}; and * we can sanely handle new ECC unsupported modes (right now, this code makes incorrect assumptions about the possible values in the nand_ecc_modes_t enum; e.g., what happens with NAND_ECC_HW_OOB_FIRST?) Signed-off-by: Brian Norris Cc: Alex Smith Reviewed-by: Boris Brezillon Tested-by: Harvey Hunt Acked-by: Harvey Hunt --- drivers/mtd/nand/jz4780_nand.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-) diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c index 6156c554e1c2..e1c016c9d32d 100644 --- a/drivers/mtd/nand/jz4780_nand.c +++ b/drivers/mtd/nand/jz4780_nand.c @@ -171,29 +171,33 @@ static int jz4780_nand_init_ecc(struct jz4780_nand_chip *nand, struct device *de chip->ecc.bytes = fls((1 + 8) * chip->ecc.size) * (chip->ecc.strength / 8); - if (nfc->bch && chip->ecc.mode == NAND_ECC_HW) { + switch (chip->ecc.mode) { + case NAND_ECC_HW: + if (!nfc->bch) { + dev_err(dev, "HW BCH selected, but BCH controller not found\n"); + return -ENODEV; + } + chip->ecc.hwctl = jz4780_nand_ecc_hwctl; chip->ecc.calculate = jz4780_nand_ecc_calculate; chip->ecc.correct = jz4780_nand_ecc_correct; - } else if (!nfc->bch && chip->ecc.mode == NAND_ECC_HW) { - dev_err(dev, "HW BCH selected, but BCH controller not found\n"); - return -ENODEV; - } - - if (chip->ecc.mode == NAND_ECC_HW_SYNDROME) { - dev_err(dev, "ECC HW syndrome not supported\n"); - return -EINVAL; - } - - if (chip->ecc.mode != NAND_ECC_NONE) + /* fall through */ + case NAND_ECC_SOFT: + case NAND_ECC_SOFT_BCH: dev_info(dev, "using %s (strength %d, size %d, bytes %d)\n", (nfc->bch) ? "hardware BCH" : "software ECC", chip->ecc.strength, chip->ecc.size, chip->ecc.bytes); - else + break; + case NAND_ECC_NONE: dev_info(dev, "not using ECC\n"); + break; + default: + dev_err(dev, "ECC mode %d not supported\n", chip->ecc.mode); + return -EINVAL; + } - /* The NAND core will generate the ECC layout. */ - if (chip->ecc.mode == NAND_ECC_SOFT || chip->ecc.mode == NAND_ECC_SOFT_BCH) + /* The NAND core will generate the ECC layout for SW ECC */ + if (chip->ecc.mode != NAND_ECC_HW) return 0; /* Generate ECC layout. ECC codes are right aligned in the OOB area. */ -- cgit v1.2.3