diff options
author | Olof Johansson <olof@lixom.net> | 2012-07-29 13:28:07 -0700 |
---|---|---|
committer | Olof Johansson <olof@lixom.net> | 2012-07-29 13:28:07 -0700 |
commit | 15a1e1bafe2c924db6d370ad892d7da6c7d83598 (patch) | |
tree | 99545a3f71307e5553b40a1082ca34714215ee4b /drivers | |
parent | 28a33cbc24e4256c143dce96c7d93bf423229f92 (diff) | |
parent | f39c1101dd4489bca966974624fe19af1c8ebe23 (diff) | |
download | linux-stable-15a1e1bafe2c924db6d370ad892d7da6c7d83598.tar.gz linux-stable-15a1e1bafe2c924db6d370ad892d7da6c7d83598.tar.bz2 linux-stable-15a1e1bafe2c924db6d370ad892d7da6c7d83598.zip |
Merge branch 'marvell/dt' into late2/dt
* marvell/dt: (41 commits)
ARM: Kirkwood: Replace mrvl with marvell
ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
ARM: Kirkwood: Describe Dreamplug LEDs in DT.
ARM: Kirkwood: Describe iConnects LEDs in DT.
ARM: Kirkwood: Describe iConnects temperature sensor in DT.
ARM: Kirkwood: Describe IB62x0 LEDs in DT.
ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
ARM: Kirkwood: Use DT to configure SATA device.
ARM: kirkwood: use devicetree for SPI on dreamplug
ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
ARM: Kirkwood: Add basic device tree support for QNAP TS219.
ATA: sata_mv: Add device tree support
ARM: Orion: DTify the watchdog timer.
ARM: Orion: Add arch support needed for I2C via DT.
ARM: kirkwood: use devicetree for orion-spi
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/ata/sata_mv.c | 42 | ||||
-rw-r--r-- | drivers/crypto/mv_cesa.c | 4 | ||||
-rw-r--r-- | drivers/mmc/host/mvsdio.c | 4 | ||||
-rw-r--r-- | drivers/mtd/nand/orion_nand.c | 6 | ||||
-rw-r--r-- | drivers/net/ethernet/marvell/mv643xx_eth.c | 6 | ||||
-rw-r--r-- | drivers/rtc/rtc-mv.c | 2 | ||||
-rw-r--r-- | drivers/spi/Kconfig | 9 | ||||
-rw-r--r-- | drivers/spi/Makefile | 1 | ||||
-rw-r--r-- | drivers/spi/spi-bcm63xx.c | 2 | ||||
-rw-r--r-- | drivers/spi/spi-gpio.c | 3 | ||||
-rw-r--r-- | drivers/spi/spi-imx.c | 14 | ||||
-rw-r--r-- | drivers/spi/spi-omap2-mcspi.c | 8 | ||||
-rw-r--r-- | drivers/spi/spi-orion.c | 22 | ||||
-rw-r--r-- | drivers/spi/spi-pl022.c | 23 | ||||
-rw-r--r-- | drivers/spi/spi-tegra.c | 89 | ||||
-rw-r--r-- | drivers/spi/spi-xcomm.c | 276 | ||||
-rw-r--r-- | drivers/spi/spi.c | 2 | ||||
-rw-r--r-- | drivers/usb/host/ehci-orion.c | 4 | ||||
-rw-r--r-- | drivers/watchdog/orion_wdt.c | 8 |
19 files changed, 471 insertions, 54 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 24712adf69df..311be18d3f03 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -65,6 +65,8 @@ #include <linux/mbus.h> #include <linux/bitops.h> #include <linux/gfp.h> +#include <linux/of.h> +#include <linux/of_irq.h> #include <scsi/scsi_host.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> @@ -4026,7 +4028,7 @@ static int mv_platform_probe(struct platform_device *pdev) struct ata_host *host; struct mv_host_priv *hpriv; struct resource *res; - int n_ports = 0; + int n_ports = 0, irq = 0; int rc; #if defined(CONFIG_HAVE_CLK) int port; @@ -4050,8 +4052,14 @@ static int mv_platform_probe(struct platform_device *pdev) return -EINVAL; /* allocate host */ - mv_platform_data = pdev->dev.platform_data; - n_ports = mv_platform_data->n_ports; + if (pdev->dev.of_node) { + of_property_read_u32(pdev->dev.of_node, "nr-ports", &n_ports); + irq = irq_of_parse_and_map(pdev->dev.of_node, 0); + } else { + mv_platform_data = pdev->dev.platform_data; + n_ports = mv_platform_data->n_ports; + irq = platform_get_irq(pdev, 0); + } host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); @@ -4109,8 +4117,7 @@ static int mv_platform_probe(struct platform_device *pdev) dev_info(&pdev->dev, "slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH, host->n_ports); - rc = ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt, - IRQF_SHARED, &mv6_sht); + rc = ata_host_activate(host, irq, mv_interrupt, IRQF_SHARED, &mv6_sht); if (!rc) return 0; @@ -4205,15 +4212,24 @@ static int mv_platform_resume(struct platform_device *pdev) #define mv_platform_resume NULL #endif +#ifdef CONFIG_OF +static struct of_device_id mv_sata_dt_ids[] __devinitdata = { + { .compatible = "marvell,orion-sata", }, + {}, +}; +MODULE_DEVICE_TABLE(of, mv_sata_dt_ids); +#endif + static struct platform_driver mv_platform_driver = { - .probe = mv_platform_probe, - .remove = __devexit_p(mv_platform_remove), - .suspend = mv_platform_suspend, - .resume = mv_platform_resume, - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - }, + .probe = mv_platform_probe, + .remove = __devexit_p(mv_platform_remove), + .suspend = mv_platform_suspend, + .resume = mv_platform_resume, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(mv_sata_dt_ids), + }, }; diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 1cc6b3f3e262..a4faa893199c 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -1098,6 +1098,10 @@ err_unreg_ecb: crypto_unregister_alg(&mv_aes_alg_ecb); err_irq: free_irq(irq, cp); + if (!IS_ERR(cp->clk)) { + clk_disable_unprepare(cp->clk); + clk_put(cp->clk); + } err_thread: kthread_stop(cp->queue_th); err_unmap_sram: diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c index 3b9136c1a475..a61cb5fca22d 100644 --- a/drivers/mmc/host/mvsdio.c +++ b/drivers/mmc/host/mvsdio.c @@ -839,6 +839,10 @@ out: if (r) release_resource(r); if (mmc) + if (!IS_ERR_OR_NULL(host->clk)) { + clk_disable_unprepare(host->clk); + clk_put(host->clk); + } mmc_free_host(mmc); return ret; diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 513dc88a05ca..fc5a868c436e 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -183,6 +183,10 @@ static int __init orion_nand_probe(struct platform_device *pdev) return 0; no_dev: + if (!IS_ERR(clk)) { + clk_disable_unprepare(clk); + clk_put(clk); + } platform_set_drvdata(pdev, NULL); iounmap(io_base); no_res: @@ -214,7 +218,7 @@ static int __devexit orion_nand_remove(struct platform_device *pdev) #ifdef CONFIG_OF static struct of_device_id orion_nand_of_match_table[] = { - { .compatible = "mrvl,orion-nand", }, + { .compatible = "marvell,orion-nand", }, {}, }; #endif diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c index f0f06b2bc28b..4fbba57b8ff4 100644 --- a/drivers/net/ethernet/marvell/mv643xx_eth.c +++ b/drivers/net/ethernet/marvell/mv643xx_eth.c @@ -2983,6 +2983,12 @@ static int mv643xx_eth_probe(struct platform_device *pdev) return 0; out: +#if defined(CONFIG_HAVE_CLK) + if (!IS_ERR(mp->clk)) { + clk_disable_unprepare(mp->clk); + clk_put(mp->clk); + } +#endif free_netdev(dev); return err; diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index b2185f4255aa..ebc1649d45d6 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -297,7 +297,7 @@ static int __exit mv_rtc_remove(struct platform_device *pdev) #ifdef CONFIG_OF static struct of_device_id rtc_mv_of_match_table[] = { - { .compatible = "mrvl,orion-rtc", }, + { .compatible = "marvell,orion-rtc", }, {} }; #endif diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index cd2fe350e724..12468e5bfef8 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -357,7 +357,7 @@ config SPI_STMP3XXX config SPI_TEGRA tristate "Nvidia Tegra SPI controller" - depends on ARCH_TEGRA && TEGRA_SYSTEM_DMA + depends on ARCH_TEGRA && (TEGRA_SYSTEM_DMA || TEGRA20_APB_DMA) help SPI driver for NVidia Tegra SoCs @@ -384,6 +384,13 @@ config SPI_TXX9 help SPI driver for Toshiba TXx9 MIPS SoCs +config SPI_XCOMM + tristate "Analog Devices AD-FMCOMMS1-EBZ SPI-I2C-bridge driver" + depends on I2C + help + Support for the SPI-I2C bridge found on the Analog Devices + AD-FMCOMMS1-EBZ board. + config SPI_XILINX tristate "Xilinx SPI controller common module" depends on HAS_IOMEM && EXPERIMENTAL diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 9d75d2198ff5..273f50d1127a 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -61,5 +61,6 @@ obj-$(CONFIG_SPI_TI_SSP) += spi-ti-ssp.o obj-$(CONFIG_SPI_TLE62X0) += spi-tle62x0.o obj-$(CONFIG_SPI_TOPCLIFF_PCH) += spi-topcliff-pch.o obj-$(CONFIG_SPI_TXX9) += spi-txx9.o +obj-$(CONFIG_SPI_XCOMM) += spi-xcomm.o obj-$(CONFIG_SPI_XILINX) += spi-xilinx.o diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c index 7491971139a6..6e25ef1bce91 100644 --- a/drivers/spi/spi-bcm63xx.c +++ b/drivers/spi/spi-bcm63xx.c @@ -129,7 +129,7 @@ static void bcm63xx_spi_setup_transfer(struct spi_device *spi, /* Find the closest clock configuration */ for (i = 0; i < SPI_CLK_MASK; i++) { - if (hz <= bcm63xx_spi_freq_table[i][0]) { + if (hz >= bcm63xx_spi_freq_table[i][0]) { clk_cfg = bcm63xx_spi_freq_table[i][1]; break; } diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 0094c645ff0d..0b56cfc71fab 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -235,7 +235,8 @@ static int spi_gpio_setup(struct spi_device *spi) status = gpio_request(cs, dev_name(&spi->dev)); if (status) return status; - status = gpio_direction_output(cs, spi->mode & SPI_CS_HIGH); + status = gpio_direction_output(cs, + !(spi->mode & SPI_CS_HIGH)); } } if (!status) diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 47877d687614..e834ff8c0188 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -626,7 +626,7 @@ static void spi_imx_chipselect(struct spi_device *spi, int is_active) int active = is_active != BITBANG_CS_INACTIVE; int dev_is_lowactive = !(spi->mode & SPI_CS_HIGH); - if (gpio < 0) + if (!gpio_is_valid(gpio)) return; gpio_set_value(gpio, dev_is_lowactive ^ active); @@ -688,8 +688,6 @@ static int spi_imx_setupxfer(struct spi_device *spi, config.speed_hz = spi->max_speed_hz; if (!config.bpw) config.bpw = spi->bits_per_word; - if (!config.speed_hz) - config.speed_hz = spi->max_speed_hz; /* Initialize the functions for transfer */ if (config.bpw <= 8) { @@ -738,7 +736,7 @@ static int spi_imx_setup(struct spi_device *spi) dev_dbg(&spi->dev, "%s: mode %d, %u bpw, %d hz\n", __func__, spi->mode, spi->bits_per_word, spi->max_speed_hz); - if (gpio >= 0) + if (gpio_is_valid(gpio)) gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1); spi_imx_chipselect(spi, BITBANG_CS_INACTIVE); @@ -791,11 +789,11 @@ static int __devinit spi_imx_probe(struct platform_device *pdev) for (i = 0; i < master->num_chipselect; i++) { int cs_gpio = of_get_named_gpio(np, "cs-gpios", i); - if (cs_gpio < 0 && mxc_platform_info) + if (!gpio_is_valid(cs_gpio) && mxc_platform_info) cs_gpio = mxc_platform_info->chipselect[i]; spi_imx->chipselect[i] = cs_gpio; - if (cs_gpio < 0) + if (!gpio_is_valid(cs_gpio)) continue; ret = gpio_request(spi_imx->chipselect[i], DRIVER_NAME); @@ -897,7 +895,7 @@ out_release_mem: release_mem_region(res->start, resource_size(res)); out_gpio_free: while (--i >= 0) { - if (spi_imx->chipselect[i] >= 0) + if (gpio_is_valid(spi_imx->chipselect[i])) gpio_free(spi_imx->chipselect[i]); } spi_master_put(master); @@ -922,7 +920,7 @@ static int __devexit spi_imx_remove(struct platform_device *pdev) iounmap(spi_imx->base); for (i = 0; i < master->num_chipselect; i++) - if (spi_imx->chipselect[i] >= 0) + if (gpio_is_valid(spi_imx->chipselect[i])) gpio_free(spi_imx->chipselect[i]); spi_master_put(master); diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 0c73dd4f43a0..7d46b15e1520 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -388,7 +388,8 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer) if (tx != NULL) { wait_for_completion(&mcspi_dma->dma_tx_completion); - dma_unmap_single(&spi->dev, xfer->tx_dma, count, DMA_TO_DEVICE); + dma_unmap_single(mcspi->dev, xfer->tx_dma, count, + DMA_TO_DEVICE); /* for TX_ONLY mode, be sure all words have shifted out */ if (rx == NULL) { @@ -403,7 +404,8 @@ omap2_mcspi_txrx_dma(struct spi_device *spi, struct spi_transfer *xfer) if (rx != NULL) { wait_for_completion(&mcspi_dma->dma_rx_completion); - dma_unmap_single(&spi->dev, xfer->rx_dma, count, DMA_FROM_DEVICE); + dma_unmap_single(mcspi->dev, xfer->rx_dma, count, + DMA_FROM_DEVICE); omap2_mcspi_set_enable(spi, 0); if (l & OMAP2_MCSPI_CHCONF_TURBO) { @@ -1032,7 +1034,7 @@ static int omap2_mcspi_transfer_one_message(struct spi_master *master, return 0; } -static int __init omap2_mcspi_master_setup(struct omap2_mcspi *mcspi) +static int __devinit omap2_mcspi_master_setup(struct omap2_mcspi *mcspi) { struct spi_master *master = mcspi->master; struct omap2_mcspi_regs *ctx = &mcspi->ctx; diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index dfd04e91fa6d..9b0caddce503 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -17,6 +17,7 @@ #include <linux/io.h> #include <linux/spi/spi.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/clk.h> #include <asm/unaligned.h> @@ -45,7 +46,6 @@ struct orion_spi { void __iomem *base; unsigned int max_speed; unsigned int min_speed; - struct orion_spi_info *spi_info; struct clk *clk; }; @@ -450,11 +450,10 @@ static int __init orion_spi_probe(struct platform_device *pdev) struct spi_master *master; struct orion_spi *spi; struct resource *r; - struct orion_spi_info *spi_info; unsigned long tclk_hz; int status = 0; - - spi_info = pdev->dev.platform_data; + const u32 *iprop; + int size; master = spi_alloc_master(&pdev->dev, sizeof *spi); if (master == NULL) { @@ -464,6 +463,12 @@ static int __init orion_spi_probe(struct platform_device *pdev) if (pdev->id != -1) master->bus_num = pdev->id; + if (pdev->dev.of_node) { + iprop = of_get_property(pdev->dev.of_node, "cell-index", + &size); + if (iprop && size == sizeof(*iprop)) + master->bus_num = *iprop; + } /* we support only mode 0, and no options */ master->mode_bits = 0; @@ -476,7 +481,6 @@ static int __init orion_spi_probe(struct platform_device *pdev) spi = spi_master_get_devdata(master); spi->master = master; - spi->spi_info = spi_info; spi->clk = clk_get(&pdev->dev, NULL); if (IS_ERR(spi->clk)) { @@ -511,6 +515,7 @@ static int __init orion_spi_probe(struct platform_device *pdev) if (orion_spi_reset(spi) < 0) goto out_rel_mem; + master->dev.of_node = pdev->dev.of_node; status = spi_register_master(master); if (status < 0) goto out_rel_mem; @@ -552,10 +557,17 @@ static int __exit orion_spi_remove(struct platform_device *pdev) MODULE_ALIAS("platform:" DRIVER_NAME); +static const struct of_device_id orion_spi_of_match_table[] __devinitdata = { + { .compatible = "marvell,orion-spi", }, + {} +}; +MODULE_DEVICE_TABLE(of, orion_spi_of_match_table); + static struct platform_driver orion_spi_driver = { .driver = { .name = DRIVER_NAME, .owner = THIS_MODULE, + .of_match_table = of_match_ptr(orion_spi_of_match_table), }, .remove = __exit_p(orion_spi_remove), }; diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 400ae2121a2a..aab518ec2bbc 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -489,6 +489,11 @@ static void giveback(struct pl022 *pl022) pl022->cur_transfer = NULL; pl022->cur_chip = NULL; spi_finalize_current_message(pl022->master); + + /* disable the SPI/SSP operation */ + writew((readw(SSP_CR1(pl022->virtbase)) & + (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase)); + } /** @@ -2048,6 +2053,9 @@ pl022_probe(struct amba_device *adev, const struct amba_id *id) printk(KERN_INFO "pl022: mapped registers from 0x%08x to %p\n", adev->res.start, pl022->virtbase); + pm_runtime_enable(dev); + pm_runtime_resume(dev); + pl022->clk = clk_get(&adev->dev, NULL); if (IS_ERR(pl022->clk)) { status = PTR_ERR(pl022->clk); @@ -2158,6 +2166,7 @@ pl022_remove(struct amba_device *adev) clk_disable(pl022->clk); clk_unprepare(pl022->clk); clk_put(pl022->clk); + pm_runtime_disable(&adev->dev); iounmap(pl022->virtbase); amba_release_regions(adev); tasklet_disable(&pl022->pump_transfers); @@ -2251,15 +2260,6 @@ static struct vendor_data vendor_st_pl023 = { .loopback = false, }; -static struct vendor_data vendor_db5500_pl023 = { - .fifodepth = 32, - .max_bpw = 32, - .unidir = false, - .extended_cr = true, - .pl023 = true, - .loopback = true, -}; - static struct amba_id pl022_ids[] = { { /* @@ -2291,11 +2291,6 @@ static struct amba_id pl022_ids[] = { .mask = 0xffffffff, .data = &vendor_st_pl023, }, - { - .id = 0x10080023, - .mask = 0xffffffff, - .data = &vendor_db5500_pl023, - }, { 0, 0 }, }; diff --git a/drivers/spi/spi-tegra.c b/drivers/spi/spi-tegra.c index ae6d78a3e912..956ff4a0827b 100644 --- a/drivers/spi/spi-tegra.c +++ b/drivers/spi/spi-tegra.c @@ -30,6 +30,7 @@ #include <linux/delay.h> #include <linux/spi/spi.h> +#include <linux/dmaengine.h> #include <mach/dma.h> @@ -162,12 +163,23 @@ struct spi_tegra_data { * require transfers to be 4 byte aligned we need a bounce buffer * for the generic case. */ + int dma_req_len; +#if defined(CONFIG_TEGRA_SYSTEM_DMA) struct tegra_dma_req rx_dma_req; struct tegra_dma_channel *rx_dma; +#else + struct dma_chan *rx_dma; + struct dma_slave_config sconfig; + struct dma_async_tx_descriptor *rx_dma_desc; + dma_cookie_t rx_cookie; +#endif u32 *rx_bb; dma_addr_t rx_bb_phys; }; +#if !defined(CONFIG_TEGRA_SYSTEM_DMA) +static void tegra_spi_rx_dma_complete(void *args); +#endif static inline unsigned long spi_tegra_readl(struct spi_tegra_data *tspi, unsigned long reg) @@ -190,10 +202,24 @@ static void spi_tegra_go(struct spi_tegra_data *tspi) val = spi_tegra_readl(tspi, SLINK_DMA_CTL); val &= ~SLINK_DMA_BLOCK_SIZE(~0) & ~SLINK_DMA_EN; - val |= SLINK_DMA_BLOCK_SIZE(tspi->rx_dma_req.size / 4 - 1); + val |= SLINK_DMA_BLOCK_SIZE(tspi->dma_req_len / 4 - 1); spi_tegra_writel(tspi, val, SLINK_DMA_CTL); - +#if defined(CONFIG_TEGRA_SYSTEM_DMA) + tspi->rx_dma_req.size = tspi->dma_req_len; tegra_dma_enqueue_req(tspi->rx_dma, &tspi->rx_dma_req); +#else + tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma, + tspi->rx_bb_phys, tspi->dma_req_len, + DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); + if (!tspi->rx_dma_desc) { + dev_err(&tspi->pdev->dev, "dmaengine slave prep failed\n"); + return; + } + tspi->rx_dma_desc->callback = tegra_spi_rx_dma_complete; + tspi->rx_dma_desc->callback_param = tspi; + tspi->rx_cookie = dmaengine_submit(tspi->rx_dma_desc); + dma_async_issue_pending(tspi->rx_dma); +#endif val |= SLINK_DMA_EN; spi_tegra_writel(tspi, val, SLINK_DMA_CTL); @@ -221,7 +247,7 @@ static unsigned spi_tegra_fill_tx_fifo(struct spi_tegra_data *tspi, spi_tegra_writel(tspi, val, SLINK_TX_FIFO); } - tspi->rx_dma_req.size = len / tspi->cur_bytes_per_word * 4; + tspi->dma_req_len = len / tspi->cur_bytes_per_word * 4; return len; } @@ -318,9 +344,8 @@ static void spi_tegra_start_message(struct spi_device *spi, spi_tegra_start_transfer(spi, t); } -static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req) +static void handle_spi_rx_dma_complete(struct spi_tegra_data *tspi) { - struct spi_tegra_data *tspi = req->dev; unsigned long flags; struct spi_message *m; struct spi_device *spi; @@ -380,6 +405,19 @@ static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req) spin_unlock_irqrestore(&tspi->lock, flags); } +#if defined(CONFIG_TEGRA_SYSTEM_DMA) +static void tegra_spi_rx_dma_complete(struct tegra_dma_req *req) +{ + struct spi_tegra_data *tspi = req->dev; + handle_spi_rx_dma_complete(tspi); +} +#else +static void tegra_spi_rx_dma_complete(void *args) +{ + struct spi_tegra_data *tspi = args; + handle_spi_rx_dma_complete(tspi); +} +#endif static int spi_tegra_setup(struct spi_device *spi) { @@ -471,6 +509,9 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) struct spi_tegra_data *tspi; struct resource *r; int ret; +#if !defined(CONFIG_TEGRA_SYSTEM_DMA) + dma_cap_mask_t mask; +#endif master = spi_alloc_master(&pdev->dev, sizeof *tspi); if (master == NULL) { @@ -522,12 +563,24 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) INIT_LIST_HEAD(&tspi->queue); +#if defined(CONFIG_TEGRA_SYSTEM_DMA) tspi->rx_dma = tegra_dma_allocate_channel(TEGRA_DMA_MODE_ONESHOT); if (!tspi->rx_dma) { dev_err(&pdev->dev, "can not allocate rx dma channel\n"); ret = -ENODEV; goto err3; } +#else + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + tspi->rx_dma = dma_request_channel(mask, NULL, NULL); + if (!tspi->rx_dma) { + dev_err(&pdev->dev, "can not allocate rx dma channel\n"); + ret = -ENODEV; + goto err3; + } + +#endif tspi->rx_bb = dma_alloc_coherent(&pdev->dev, sizeof(u32) * BB_LEN, &tspi->rx_bb_phys, GFP_KERNEL); @@ -537,6 +590,7 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) goto err4; } +#if defined(CONFIG_TEGRA_SYSTEM_DMA) tspi->rx_dma_req.complete = tegra_spi_rx_dma_complete; tspi->rx_dma_req.to_memory = 1; tspi->rx_dma_req.dest_addr = tspi->rx_bb_phys; @@ -546,6 +600,23 @@ static int __devinit spi_tegra_probe(struct platform_device *pdev) tspi->rx_dma_req.source_wrap = 4; tspi->rx_dma_req.req_sel = spi_tegra_req_sels[pdev->id]; tspi->rx_dma_req.dev = tspi; +#else + /* Dmaengine Dma slave config */ + tspi->sconfig.src_addr = tspi->phys + SLINK_RX_FIFO; + tspi->sconfig.dst_addr = tspi->phys + SLINK_RX_FIFO; + tspi->sconfig.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + tspi->sconfig.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + tspi->sconfig.slave_id = spi_tegra_req_sels[pdev->id]; + tspi->sconfig.src_maxburst = 1; + tspi->sconfig.dst_maxburst = 1; + ret = dmaengine_device_control(tspi->rx_dma, + DMA_SLAVE_CONFIG, (unsigned long) &tspi->sconfig); + if (ret < 0) { + dev_err(&pdev->dev, "can not do slave configure for dma %d\n", + ret); + goto err4; + } +#endif master->dev.of_node = pdev->dev.of_node; ret = spi_register_master(master); @@ -559,7 +630,11 @@ err5: dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN, tspi->rx_bb, tspi->rx_bb_phys); err4: +#if defined(CONFIG_TEGRA_SYSTEM_DMA) tegra_dma_free_channel(tspi->rx_dma); +#else + dma_release_channel(tspi->rx_dma); +#endif err3: clk_put(tspi->clk); err2: @@ -581,7 +656,11 @@ static int __devexit spi_tegra_remove(struct platform_device *pdev) tspi = spi_master_get_devdata(master); spi_unregister_master(master); +#if defined(CONFIG_TEGRA_SYSTEM_DMA) tegra_dma_free_channel(tspi->rx_dma); +#else + dma_release_channel(tspi->rx_dma); +#endif dma_free_coherent(&pdev->dev, sizeof(u32) * BB_LEN, tspi->rx_bb, tspi->rx_bb_phys); diff --git a/drivers/spi/spi-xcomm.c b/drivers/spi/spi-xcomm.c new file mode 100644 index 000000000000..266a847e2992 --- /dev/null +++ b/drivers/spi/spi-xcomm.c @@ -0,0 +1,276 @@ +/* + * Analog Devices AD-FMCOMMS1-EBZ board I2C-SPI bridge driver + * + * Copyright 2012 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/spi/spi.h> +#include <asm/unaligned.h> + +#define SPI_XCOMM_SETTINGS_LEN_OFFSET 10 +#define SPI_XCOMM_SETTINGS_3WIRE BIT(6) +#define SPI_XCOMM_SETTINGS_CS_HIGH BIT(5) +#define SPI_XCOMM_SETTINGS_SAMPLE_END BIT(4) +#define SPI_XCOMM_SETTINGS_CPHA BIT(3) +#define SPI_XCOMM_SETTINGS_CPOL BIT(2) +#define SPI_XCOMM_SETTINGS_CLOCK_DIV_MASK 0x3 +#define SPI_XCOMM_SETTINGS_CLOCK_DIV_64 0x2 +#define SPI_XCOMM_SETTINGS_CLOCK_DIV_16 0x1 +#define SPI_XCOMM_SETTINGS_CLOCK_DIV_4 0x0 + +#define SPI_XCOMM_CMD_UPDATE_CONFIG 0x03 +#define SPI_XCOMM_CMD_WRITE 0x04 + +#define SPI_XCOMM_CLOCK 48000000 + +struct spi_xcomm { + struct i2c_client *i2c; + + uint16_t settings; + uint16_t chipselect; + + unsigned int current_speed; + + uint8_t buf[63]; +}; + +static int spi_xcomm_sync_config(struct spi_xcomm *spi_xcomm, unsigned int len) +{ + uint16_t settings; + uint8_t *buf = spi_xcomm->buf; + + settings = spi_xcomm->settings; + settings |= len << SPI_XCOMM_SETTINGS_LEN_OFFSET; + + buf[0] = SPI_XCOMM_CMD_UPDATE_CONFIG; + put_unaligned_be16(settings, &buf[1]); + put_unaligned_be16(spi_xcomm->chipselect, &buf[3]); + + return i2c_master_send(spi_xcomm->i2c, buf, 5); +} + +static void spi_xcomm_chipselect(struct spi_xcomm *spi_xcomm, + struct spi_device *spi, int is_active) +{ + unsigned long cs = spi->chip_select; + uint16_t chipselect = spi_xcomm->chipselect; + + if (is_active) + chipselect |= BIT(cs); + else + chipselect &= ~BIT(cs); + + spi_xcomm->chipselect = chipselect; +} + +static int spi_xcomm_setup_transfer(struct spi_xcomm *spi_xcomm, + struct spi_device *spi, struct spi_transfer *t, unsigned int *settings) +{ + unsigned int speed; + + if ((t->bits_per_word && t->bits_per_word != 8) || t->len > 62) + return -EINVAL; + + speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz; + + if (speed != spi_xcomm->current_speed) { + unsigned int divider = DIV_ROUND_UP(SPI_XCOMM_CLOCK, speed); + if (divider >= 64) + *settings |= SPI_XCOMM_SETTINGS_CLOCK_DIV_64; + else if (divider >= 16) + *settings |= SPI_XCOMM_SETTINGS_CLOCK_DIV_16; + else + *settings |= SPI_XCOMM_SETTINGS_CLOCK_DIV_4; + + spi_xcomm->current_speed = speed; + } + + if (spi->mode & SPI_CPOL) + *settings |= SPI_XCOMM_SETTINGS_CPOL; + else + *settings &= ~SPI_XCOMM_SETTINGS_CPOL; + + if (spi->mode & SPI_CPHA) + *settings &= ~SPI_XCOMM_SETTINGS_CPHA; + else + *settings |= SPI_XCOMM_SETTINGS_CPHA; + + if (spi->mode & SPI_3WIRE) + *settings |= SPI_XCOMM_SETTINGS_3WIRE; + else + *settings &= ~SPI_XCOMM_SETTINGS_3WIRE; + + return 0; +} + +static int spi_xcomm_txrx_bufs(struct spi_xcomm *spi_xcomm, + struct spi_device *spi, struct spi_transfer *t) +{ + int ret; + + if (t->tx_buf) { + spi_xcomm->buf[0] = SPI_XCOMM_CMD_WRITE; + memcpy(spi_xcomm->buf + 1, t->tx_buf, t->len); + + ret = i2c_master_send(spi_xcomm->i2c, spi_xcomm->buf, t->len + 1); + if (ret < 0) + return ret; + else if (ret != t->len + 1) + return -EIO; + } else if (t->rx_buf) { + ret = i2c_master_recv(spi_xcomm->i2c, t->rx_buf, t->len); + if (ret < 0) + return ret; + else if (ret != t->len) + return -EIO; + } + + return t->len; +} + +static int spi_xcomm_transfer_one(struct spi_master *master, + struct spi_message *msg) +{ + struct spi_xcomm *spi_xcomm = spi_master_get_devdata(master); + unsigned int settings = spi_xcomm->settings; + struct spi_device *spi = msg->spi; + unsigned cs_change = 0; + struct spi_transfer *t; + bool is_first = true; + int status = 0; + bool is_last; + + is_first = true; + + spi_xcomm_chipselect(spi_xcomm, spi, true); + + list_for_each_entry(t, &msg->transfers, transfer_list) { + + if (!t->tx_buf && !t->rx_buf && t->len) { + status = -EINVAL; + break; + } + + status = spi_xcomm_setup_transfer(spi_xcomm, spi, t, &settings); + if (status < 0) + break; + + is_last = list_is_last(&t->transfer_list, &msg->transfers); + cs_change = t->cs_change; + + if (cs_change ^ is_last) + settings |= BIT(5); + else + settings &= ~BIT(5); + + if (t->rx_buf) { + spi_xcomm->settings = settings; + status = spi_xcomm_sync_config(spi_xcomm, t->len); + if (status < 0) + break; + } else if (settings != spi_xcomm->settings || is_first) { + spi_xcomm->settings = settings; + status = spi_xcomm_sync_config(spi_xcomm, 0); + if (status < 0) + break; + } + + if (t->len) { + status = spi_xcomm_txrx_bufs(spi_xcomm, spi, t); + + if (status < 0) + break; + + if (status > 0) + msg->actual_length += status; + } + status = 0; + + if (t->delay_usecs) + udelay(t->delay_usecs); + + is_first = false; + } + + if (status != 0 || !cs_change) + spi_xcomm_chipselect(spi_xcomm, spi, false); + + msg->status = status; + spi_finalize_current_message(master); + + return status; +} + +static int spi_xcomm_setup(struct spi_device *spi) +{ + if (spi->bits_per_word != 8) + return -EINVAL; + + return 0; +} + +static int __devinit spi_xcomm_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct spi_xcomm *spi_xcomm; + struct spi_master *master; + int ret; + + master = spi_alloc_master(&i2c->dev, sizeof(*spi_xcomm)); + if (!master) + return -ENOMEM; + + spi_xcomm = spi_master_get_devdata(master); + spi_xcomm->i2c = i2c; + + master->num_chipselect = 16; + master->mode_bits = SPI_CPHA | SPI_CPOL | SPI_3WIRE; + master->flags = SPI_MASTER_HALF_DUPLEX; + master->setup = spi_xcomm_setup; + master->transfer_one_message = spi_xcomm_transfer_one; + master->dev.of_node = i2c->dev.of_node; + i2c_set_clientdata(i2c, master); + + ret = spi_register_master(master); + if (ret < 0) + spi_master_put(master); + + return ret; +} + +static int __devexit spi_xcomm_remove(struct i2c_client *i2c) +{ + struct spi_master *master = i2c_get_clientdata(i2c); + + spi_unregister_master(master); + + return 0; +} + +static const struct i2c_device_id spi_xcomm_ids[] = { + { "spi-xcomm" }, + { }, +}; + +static struct i2c_driver spi_xcomm_driver = { + .driver = { + .name = "spi-xcomm", + .owner = THIS_MODULE, + }, + .id_table = spi_xcomm_ids, + .probe = spi_xcomm_probe, + .remove = __devexit_p(spi_xcomm_remove), +}; +module_i2c_driver(spi_xcomm_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("Analog Devices AD-FMCOMMS1-EBZ board I2C-SPI bridge driver"); diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1041cb83d67a..84c2861d6f4d 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -53,7 +53,7 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf) { const struct spi_device *spi = to_spi_device(dev); - return sprintf(buf, "%s\n", spi->modalias); + return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias); } static struct device_attribute spi_dev_attrs[] = { diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c index 82de1073aa52..c6903e3af29c 100644 --- a/drivers/usb/host/ehci-orion.c +++ b/drivers/usb/host/ehci-orion.c @@ -298,6 +298,10 @@ static int __devinit ehci_orion_drv_probe(struct platform_device *pdev) err4: usb_put_hcd(hcd); err3: + if (!IS_ERR(clk)) { + clk_disable_unprepare(clk); + clk_put(clk); + } iounmap(regs); err2: release_mem_region(res->start, resource_size(res)); diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c index 0f5736949c61..1531e0256c34 100644 --- a/drivers/watchdog/orion_wdt.c +++ b/drivers/watchdog/orion_wdt.c @@ -25,6 +25,7 @@ #include <linux/io.h> #include <linux/spinlock.h> #include <linux/clk.h> +#include <linux/of.h> #include <mach/bridge-regs.h> /* @@ -295,6 +296,12 @@ static void orion_wdt_shutdown(struct platform_device *pdev) orion_wdt_disable(); } +static const struct of_device_id orion_wdt_of_match_table[] __devinitdata = { + { .compatible = "marvell,orion-wdt", }, + {}, +}; +MODULE_DEVICE_TABLE(of, orion_wdt_of_match_table); + static struct platform_driver orion_wdt_driver = { .probe = orion_wdt_probe, .remove = __devexit_p(orion_wdt_remove), @@ -302,6 +309,7 @@ static struct platform_driver orion_wdt_driver = { .driver = { .owner = THIS_MODULE, .name = "orion_wdt", + .of_match_table = of_match_ptr(orion_wdt_of_match_table), }, }; |