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* Merge branch 'for-linus' of ↵Linus Torvalds2012-10-015-6/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull the trivial tree from Jiri Kosina: "Tiny usual fixes all over the place" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) doc: fix old config name of kprobetrace fs/fs-writeback.c: cleanup riteback_sb_inodes kerneldoc btrfs: fix the commment for the action flags in delayed-ref.h btrfs: fix trivial typo for the comment of BTRFS_FREE_INO_OBJECTID vfs: fix kerneldoc for generic_fh_to_parent() treewide: fix comment/printk/variable typos ipr: fix small coding style issues doc: fix broken utf8 encoding nfs: comment fix platform/x86: fix asus_laptop.wled_type module parameter mfd: printk/comment fixes doc: getdelays.c: remember to close() socket on error in create_nl_socket() doc: aliasing-test: close fd on write error mmc: fix comment typos dma: fix comments spi: fix comment/printk typos in spi Coccinelle: fix typo in memdup_user.cocci tmiofb: missing NULL pointer checks tools: perf: Fix typo in tools/perf tools/testing: fix comment / output typos ...
| * spi: fix comment/printk typos in spiMasanari Iida2012-09-015-6/+6
| | | | | | | | | | | | | | Correct spelling typo in drivers/spi Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2012-08-251-5/+26
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS fixes from Ralf Baechle: "Random fixes across the MIPS tree. The two hotspots are several bugs in the module loader and the ath79 SOC support; also noteworthy is the restructuring of the code to synchronize CPU timers across CPUs on startup; the old code recently ceased to work due to unrelated changes. All except one of these patches have sat for a significant time in linux-next for testing." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: pci-ar724x: avoid data bus error due to a missing PCIe module MIPS: Malta: Delete duplicate PCI fixup. MIPS: ath79: don't hardcode the unavailability of the DSP ASE MIPS: Synchronize MIPS count one CPU at a time MIPS: BCM63xx: Fix SPI message control register handling for BCM6338/6348. MIPS: Module: Deal with malformed HI16/LO16 relocation sequences. MIPS: Fix race condition in module relocation code. MIPS: Fix memory leak in error path of HI16/LO16 relocation handling. MIPS: MTX-1: Add udelay to mtx1_pci_idsel MIPS: ath79: select HAVE_CLK MIPS: ath79: Use correct IRQ number for the OHCI controller on AR7240 MIPS: ath79: Fix number of GPIO lines for AR724[12] MIPS: Octeon: Fix broken interrupt controller code.
| * | MIPS: BCM63xx: Fix SPI message control register handling for BCM6338/6348.Florian Fainelli2012-08-171-5/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BCM6338 and BCM6348 have a message control register width of 8 bits, instead of 16-bits like what the SPI driver assumes right now. Also the SPI message type shift value of 14 is actually 6 for these SoCs. This resulted in transmit FIFO corruption because we were writing 16-bits to an 8-bits wide register, thus spanning on the first byte of the transmit FIFO, which had already been filed in bcm63xx_spi_fill_txrx_fifo(). Fix this by passing the message control register width and message type shift through platform data back to the SPI driver so that it can use it properly. Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: grant.likely@secretlab.ca Cc: spi-devel-general@lists.sourceforge.net Cc: jonas.gorski@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/3983/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge tag 'spi-3.6' of ↵Linus Torvalds2012-08-205-15/+13
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc Pull spi fixes from Mark Brown: "Grant is still away so another pull request with some fairly minor fixes, the most notable of which are several fixes for some common error patterns with the reference counting spi_master_get/put do." * tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: spi/coldfire-qspi: Drop extra calls to spi_master_get in suspend/resume functions spi: spi-coldfire-qspi: Drop extra spi_master_put in device remove function spi/pl022: fix spi-pl022 pm enable at probe spi/bcm63xx: Ensure that memory is freed only after it is no longer used spi: omap2-mcspi: Fix the error handling in probe spi/s3c64xx: Add missing static storage class specifiers
| * | spi/coldfire-qspi: Drop extra calls to spi_master_get in suspend/resume ↵Guenter Roeck2012-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | functions Suspend and resume functions call spi_master_get() without matching spi_master_put(). The extra references are unnecessary and cause subsequent module unload attempts to fail, so drop the calls. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | spi: spi-coldfire-qspi: Drop extra spi_master_put in device remove functionGuenter Roeck2012-08-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The call sequence spi_alloc_master/spi_register_master/spi_unregister_master is complete; it reduces the device reference count to zero, which and results in device memory being freed. The subsequent call to spi_master_put is unnecessary and results in an access to free memory. Drop it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | spi/pl022: fix spi-pl022 pm enable at probeMichel JAOUEN2012-08-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | amba drivers does not need to enable pm runtime at probe. amba_probe already enables pm runtime. This rids this warning in the ux500 boot log: ssp-pl022 ssp0: Unbalanced pm_runtime_enable! Signed-off-by: Michel JAOUEN <michel.jaouen@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | spi/bcm63xx: Ensure that memory is freed only after it is no longer usedGuenter Roeck2012-08-131-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The call to spi_unregister_master() in the device remove function frees device memory, and with it any device local data. However, device local data is still accessed after the call to spi_unregister_master(). Acquire a reference to the SPI device and release it after cleanup is complete to solve the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | spi: omap2-mcspi: Fix the error handling in probeShubhrajyoti D2012-08-041-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kfree() is taken care of by the spi core (spi_master_release() function) that is called once the last reference to the underlying struct device has been released. So the driver need not call kfree. Also the put was missed in some of the error handling fix the same. There by fixing the missing device_put in some of the error paths. Acked-by: Guenter Roeck <linux@roeck-us.net> Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | spi/s3c64xx: Add missing static storage class specifiersSachin Kamat2012-08-041-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Silences the following sparse warnings: drivers/spi/spi-s3c64xx.c:1482:32: warning: symbol 's3c2443_spi_port_config' was not declared. Should it be static? drivers/spi/spi-s3c64xx.c:1489:32: warning: symbol 's3c6410_spi_port_config' was not declared. Should it be static? drivers/spi/spi-s3c64xx.c:1495:32: warning: symbol 's5p64x0_spi_port_config' was not declared. Should it be static? drivers/spi/spi-s3c64xx.c:1501:32: warning: symbol 's5pc100_spi_port_config' was not declared. Should it be static? drivers/spi/spi-s3c64xx.c:1508:32: warning: symbol 's5pv210_spi_port_config' was not declared. Should it be static? drivers/spi/spi-s3c64xx.c:1515:32: warning: symbol 'exynos4_spi_port_config' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | | spi/s3c64xx: improve error handlingArnd Bergmann2012-08-101-1/+1
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a device tree definition os an s3c64xx SPI master is missing a "controller-data" subnode, the newly added s3c64xx_get_slave_ctrldata function might use uninitialized memory in place of that node, which was correctly reported by gcc. Without this patch, building s3c6400_defconfig results in: drivers/spi/spi-s3c64xx.c: In function 's3c64xx_get_slave_ctrldata.isra.25': drivers/spi/spi-s3c64xx.c:841:5: warning: 'data_np' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Jaswinder Singh <jaswinder.singh@linaro.org> Cc: Grant Likely <grant.likely@secretlab.ca>
* | Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-armLinus Torvalds2012-08-011-102/+127
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ARM DMA engine updates from Russell King: "This looks scary at first glance, but what it is is: - a rework of the sa11x0 DMA engine driver merged during the previous cycle, to extract a common set of helper functions for DMA engine implementations. - conversion of amba-pl08x.c to use these helper functions. - addition of OMAP DMA engine driver (using these helper functions), and conversion of some of the OMAP DMA users to use DMA engine. Nothing in the helper functions is ARM specific, so I hope that other implementations can consolidate some of their code by making use of these helpers. This has been sitting in linux-next most of the merge cycle, and has been tested by several OMAP folk. I've tested it on sa11x0 platforms, and given it my best shot on my broken platforms which have the amba-pl08x controller. The last point is the addition to feature-removal-schedule.txt, which will have a merge conflict. Between myself and TI, we're planning to remove the old TI DMA implementation next year." Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt and drivers/dma/{Kconfig,Makefile} * 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits) ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails Add feature removal of old OMAP private DMA implementation mtd: omap2: remove private DMA API implementation mtd: omap2: add DMA engine support spi: omap2-mcspi: remove private DMA API implementation spi: omap2-mcspi: add DMA engine support ARM: omap: remove mmc platform data dma_mask and initialization mmc: omap: remove private DMA API implementation mmc: omap: add DMA engine support mmc: omap_hsmmc: remove private DMA API implementation mmc: omap_hsmmc: add DMA engine support dmaengine: omap: add support for cyclic DMA dmaengine: omap: add support for setting fi dmaengine: omap: add support for returning residue in tx_state method dmaengine: add OMAP DMA engine driver dmaengine: sa11x0-dma: add cyclic DMA support dmaengine: sa11x0-dma: fix DMA residue support dmaengine: PL08x: ensure all descriptors are freed when channel is released dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking ...
| * | spi: omap2-mcspi: remove private DMA API implementationRussell King2012-07-311-99/+5
| | | | | | | | | | | | | | | | | | | | | | | | Remove the private DMA API implementation from spi-omap2-mcspi.c, making it use entirely the DMA engine API. Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | spi: omap2-mcspi: add DMA engine supportRussell King2012-07-311-31/+150
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add DMA engine support to the OMAP SPI driver. This supplements the private DMA API implementation contained within this driver, and the driver can be independently switched at build time between using DMA engine and the private DMA API for the transmit and receive sides. Tested-by: Shubhrajyoti <shubhrajyoti@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2012-07-303-0/+479
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS updates from Ralf Baechle: "More hardware support across the field including a bunch of device drivers. The highlight however really are further steps towards device tree. This has been sitting in -next for ages. All MIPS _defconfigs have been tested to boot or where I don't have hardware available, to at least build fine." * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (77 commits) MIPS: Loongson 1B: Add defconfig MIPS: Loongson 1B: Add board support MIPS: Netlogic: early console fix MIPS: Netlogic: Fix indentation of smpboot.S MIPS: Netlogic: remove cpu_has_dc_aliases define for XLP MIPS: Netlogic: Remove unused pcibios_fixups MIPS: Netlogic: Add XLP SoC devices in FDT MIPS: Netlogic: Add IRQ mappings for more devices MIPS: Netlogic: USB support for XLP MIPS: Netlogic: XLP PCIe controller support. MIPS: Netlogic: Platform changes for XLR/XLS I2C MIPS: Netlogic: Platform NAND/NOR flash support MIPS: Netlogic: Platform changes for XLS USB MIPS: Netlogic: Remove NETLOGIC_ prefix MIPS: Netlogic: SMP wakeup code update MIPS: Netlogic: Update comments in smpboot.S MIPS: BCM63XX: Add 96328avng reference board MIPS: Expose PCIe drivers for MIPS MIPS: BCM63XX: Add PCIe Support for BCM6328 MIPS: BCM63XX: Move the PCI initialization into its own function ...
| * | | SPI: MIPS: lantiq: add FALCON spi driverThomas Langer2012-07-233-0/+479
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The external bus unit (EBU) found on the FALCON SoC has spi emulation that is designed for serial flash access. This driver has only been tested with m25p80 type chips. The hardware has no support for other types of spi peripherals. Signed-off-by: Thomas Langer <thomas.langer@lantiq.com> Signed-off-by: John Crispin <blogic@openwrt.org> Cc: spi-devel-general@lists.sourceforge.net Cc: linux-mips@linux-mips.org Acked-by: Grant Likely <grant.likely@secretlab.ca> Patchwork: https://patchwork.linux-mips.org/patch/3844/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge tag 'spi-3.6' of ↵Linus Torvalds2012-07-2611-39/+410
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc Pull spi updates from Mark Brown: "Since Grant is even more specacularly busy than usual for the time being I've been collecting SPI patches for him for this release - probably things will revert back to Grant before the next release. There's nothing too exciting here, mostly it's simple driver specific stuff: - Add spi: to the modaliases of SPI devices to provide namespacing. - A driver for AD-FMCOMMS1-EBZ. - DT binding for Orion. - Fixes and cleanups for i.MX, PL0022, OMAP and bitbang drivers. There may be a few more fixes I've missed, people keep sending me new things." * tag 'spi-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc: spi/orion: remove uneeded spi_info spi/bcm63xx: fix clock configuration selection spi/orion: add device tree binding spi/omap2: mark omap2_mcspi_master_setup as __devinit spi: omap2-mcspi: Fix the below warning spi: Add AD-FMCOMMS1-EBZ I2C-SPI bridge driver spi/imx: use gpio_is_valid to determine if a gpio is valid spi/imx: remove redundant config.speed_hz setting spi/gpio: start with CS non-active spi: tegra: use dmaengine based dma driver spi/pl022: cleanup pl022 header documentation spi/pl022: enable runtime PM spi/pl022: delete DB5500 support spi/pl022: disable port when unused spi: Add "spi:" prefix to modalias attribute of spi devices
| * | | spi/orion: remove uneeded spi_infoMichael Walle2012-07-231-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was formerly used to store the tclk value. This is now discovered using the clk API, rather than pass it as platform data. Signed-off-by: Michael Walle <michael@walle.cc> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi/bcm63xx: fix clock configuration selectionFlorian Fainelli2012-07-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are currently using an inferior or equal operator for comparing the transfer frequency with the clock frequency table. Because of this, we always end up selecting 20Mhz as a frequency, due to the inequality transfer hz <= 20 Mhz being always true. Fix this by reversing the inequality, which is how the comparison should be done. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi/orion: add device tree bindingAndrew Lunn2012-07-231-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Walle <michael@walle.cc> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Acked-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@googlemail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi/omap2: mark omap2_mcspi_master_setup as __devinitArnd Bergmann2012-07-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This warning recently appeared with omap2plus_defconfig: WARNING: drivers/spi/built-in.o(.devinit.text+0x3c4): Section mismatch in reference from the function omap2_mcspi_probe() to the function .init.text:omap2_mcspi_master_setup() The function __devinit omap2_mcspi_probe() references a function __init omap2_mcspi_master_setup(). If omap2_mcspi_master_setup is only used by omap2_mcspi_probe then annotate omap2_mcspi_master_setup with a matching annotation. The fix is obviously to mark the omap2_mcspi_master_setup function as __devinit, rather than __init. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi: omap2-mcspi: Fix the below warningShubhrajyoti D2012-07-201-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The dma_map and dma_unmap should have same parameter passed otherwise we get the below warn. ks8851 spi1.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x000000009f22] [ 2.066925] Modules linked in: [ 2.070312] [ 2.071929] [<c001c250>] (unwind_backtrace+0x0/0x130) from [<c0043d84>] (warn_slowpath_common+0x4c/0x64) [ 2.081909] [<c0043d84>] (warn_slowpath_common+0x4c/0x64) from [<c0043e30>] (warn_slowpath_fmt+0x30/0x40) [ 2.091949] [<c0043e30>] (warn_slowpath_fmt+0x30/0x40) from [<c0293824>] (check_unmap+0x6d0/0x7b0) [ 2.101348] [<c0293824>] (check_unmap+0x6d0/0x7b0) from [<c02939cc>] (debug_dma_unmap_page+0x64/0x70) [ 2.111053] [<c02939cc>] (debug_dma_unmap_page+0x64/0x70) from [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc) [ 2.121582] [<c03519a4>] (omap2_mcspi_txrx_dma+0x2d8/0x4fc) from [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290) [ 2.132537] [<c03524d8>] (omap2_mcspi_work.clone.4+0xf0/0x290) from [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438) [ 2.144592] [<c0352900>] (omap2_mcspi_transfer_one_message+0x288/0x438) from [<c03503bc>] (spi_pump_messages+0x100/0x160) [ 2.156127] [<c03503bc>] (spi_pump_messages+0x100/0x160) from [<c006635c>] (kthread_worker_fn+0xac/0x180) [ 2.166168] [<c006635c>] (kthread_worker_fn+0xac/0x180) from [<c0066578>] (kthread+0x90/0x9c) [ 2.175140] [<c0066578>] (kthread+0x90/0x9c) from [<c00157fc>] (kernel_thread_exit+0x0/0x8) [ 2.183898] ---[ end trace d1830ce6e44292f2 ]--- Fix the warn by changing the unmap parameter. Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi: Add AD-FMCOMMS1-EBZ I2C-SPI bridge driverLars-Peter Clausen2012-07-203-0/+284
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the I2C-SPI bridge which can be found on the Analog Devices AD-FMCOMMS1-EBZ board. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi/imx: use gpio_is_valid to determine if a gpio is validHui Wang2012-07-131-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use gpio_is_valid() to replace "gpio >= 0" or "gpio < 0". Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Hui Wang <jason77.wang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi/imx: remove redundant config.speed_hz settingHui Wang2012-07-131-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The config.speed_hz is just setted at the two lines ahead of it, obviously we don't need to copy the code to set the config.speed_hz again. Remove it for a cleanup. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Hui Wang <jason77.wang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | Merge branch 'pl022' of ↵Mark Brown2012-07-115-34/+62
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into spi-next
| | * | | spi/pl022: enable runtime PMLinus Walleij2012-07-021-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we're gonna use runtime PM it's a pretty good idea to actually enable it in probe() and disable it in remove() too, so it gets used for real. Up until now we only fooled around with the reference count. Cc: Vinit Shenoy <vinit.shenoy@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | | spi/pl022: delete DB5500 supportLinus Walleij2012-07-021-14/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This ASIC variant has been deleted from the ARM tree, no need to keep support around. Cc: Vinit Shenoy <vinit.shenoy@st.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| | * | | spi/pl022: disable port when unusedVirupax Sadashivpetimath2012-07-021-0/+5
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit ffbbdd21329f3e15eeca6df2d4bc11c04d9d91c0 "spi: create a message queueing infrastructure" Accidentally deleted the logic to disable the port when unused leading to higher power consumption. Fix this up. Cc: stable@kernel.org Cc: Vinit Shenoy <vinit.shenoy@st.com> Signed-off-by: Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * | | spi/gpio: start with CS non-activeUwe Kleine-König2012-07-101-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The chip select line was configured as output with the initial value being active explicitly. It was later deasserted during spi_bitbang_setup() without any clock activity in between. So it makes no sense to activate the device at all and the chip select line can better start non-active. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi: tegra: use dmaengine based dma driverLaxman Dewangan2012-07-102-6/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the dmaengine based Tegra APB DMA driver for data transfer between SPI FIFO and memory in place of legacy Tegra APB DMA. The new driver is selected if legacy driver is not selected and new DMA driver is enabled through config file. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | | spi: Add "spi:" prefix to modalias attribute of spi devicesGrant Likely2012-05-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The modalias attribute of spi devices doesn't have the "spi:" prefix that is used in the UEVENT and in spi device drivers. This patch adds the prefix so the modprobe can correctly match modules to devices. Reported-by: David Daney <david.daney@cavium.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | | Merge branch 'for-next' of ↵Linus Torvalds2012-07-241-1/+1
|\ \ \ \ | |_|_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu arch update from Greg Ungerer: "Quite a varied set of changes this time. - A little more merge cleanup, this time the assembler entry code. - New sub-architecture support for the ColdFire 5251/5253 and 5441x CPU families. - Specific clk support code for the ColdFire 520x and 532x CPU familes. - Refactoring of the ColdFire GPIO support. - PCI bus support for some ColdFire CPUS that have PCI hardware (54xx family). This showed up a few problems with ColdFire cache, allocating coherent memory and bi-directional DMA support. Fixes for those too." * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (21 commits) m68k: allow PCI bus to be enabled for ColdFire m54xx CPUs m68k: add PCI bus code support for the ColdFire M54xx SoC family m68k: add IO access definitions to support PCI on ColdFire platforms m68k: add PCI bus support definitions for the ColdFire M54xx SoC family m68k: common PCI support definitions and code m68k: add support for DMA_BIDIRECTIONAL in dma support functions m68k: fix ColdFire clear cache operation m68k: use simpler dma_alloc_coherent() for ColdFire CPUs m68knommu: platform support for 8390 based ethernet used on some boards m68knommu: Add clk definitions for m532x. m68knommu: Add clk definitions for m520x. m68knommu: Add rtc device for m5441x. m68knommu: add definitions for the third interrupt controller on devices that don't have a third interrupt controller. m68knommu: Add support for the Coldfire m5441x. m68knommu: use MCF_IRQ_PIT1 instead of MCFINT_VECBASE + MCFINT_PIT1 coldfire-qspi: Add support for the Coldfire 5251/5253. m68knommu: Add support for the Coldfire 5251/5253 m68knommu: refactor Coldfire GPIO not to require GPIOLIB, eliminate mcf_gpio_chips. m68k: merge the MMU and non-MMU versions of the entry.S code m68k: use jbsr to call functions instead of bsrl ...
| * | | coldfire-qspi: Add support for the Coldfire 5251/5253.Steven King2012-07-161-1/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | The Coldfire 5251/5253 have a QSPI controller. Enable selection of the coldfire-qspi driver if the M525x is selected. Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Greg Ungerer <gerg@uclinux.org>
* | | Merge tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-07-231-2/+2
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull arm-soc clk changes from Arnd Bergmann: "Clock support is moving to the clk subsystem. These tegra, omap and imx changes are for code that is still platform specific and not (yet) part of that subsystem." Fix up conflicts in arch/arm/mach-{imx/clk-imx51-imx53.c,omap2/Makefile} * tag 'clk' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits) ARM: imx: clk-imx31: Fix clock id for rnga driver ARM: imx: add missing item to the list of clock event modes ARM: i.MX5x CSPI: Fixed clock name for CSPI ARM: i.MX5x clocks: Fix GPT clocks ARM: i.MX5x clocks: Fix parent for PWM clocks ARM: i.MX5x clocks: Add EPIT support ARM: mx27: Reenable silicon version print ARM: clk-imx27: Fix rtc clock id ARM: tegra: Provide clock for only one PWM controller ARM: tegra: Fix PWM clock programming ARM: OMAP3+: clock33xx: Add AM33XX clock tree data ARM: OMAP3+: clock: Move common clksel_rate & clock data to common file ARM: tegra: dma: rename driver name for clock to "tegra-apbdma" ARM: tegra: Remove second instance of uart clk crypto: add clk_prepare/clk_unprepare ASoC: tegra: add clk_prepare/clk_unprepare staging: nvec: add clk_prepare/clk_unprepare spi/tegra: add clk_prepare/clk_unprepare Input: tegra-kbc - add clk_prepare/clk_unprepare USB: ehci-tegra: add clk_prepare/clk_unprepare ...
| * \ \ Merge branch 'for-3.6/common-clk' of ↵Arnd Bergmann2012-07-061-2/+2
| |\ \ \ | | |/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/clk From Stephen Warren <swarren@wwwdotorg.org>: This branch contains numerous changes required as a baseline in order to convert Tegra to the common clock framework. The intention was to also include patches to actually convert Tegra to the common clock framework. However, those patches appeared late in the kernel cycle and currently cause regressions on some boards, so were dropped for now. * 'for-3.6/common-clk' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra: ARM: tegra: Provide clock for only one PWM controller ARM: tegra: Fix PWM clock programming ARM: tegra: dma: rename driver name for clock to "tegra-apbdma" ARM: tegra: Remove second instance of uart clk crypto: add clk_prepare/clk_unprepare ASoC: tegra: add clk_prepare/clk_unprepare staging: nvec: add clk_prepare/clk_unprepare spi/tegra: add clk_prepare/clk_unprepare Input: tegra-kbc - add clk_prepare/clk_unprepare USB: ehci-tegra: add clk_prepare/clk_unprepare mmc: tegra: add clk_prepare/clk_unprepare i2c: tegra: Add clk_prepare/clk_unprepare ARM: tegra: add clk_prepare/clk_unprepare Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| | * | spi/tegra: add clk_prepare/clk_unpreparePrashant Gaikwad2012-06-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use clk_prepare/clk_unprepare as required by the generic clk framework. Cc: grant.likely@secretlab.ca cc: spi-devel-general@lists.sourceforge.net Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | | | spi/s3c64xx: Expand S3C64XX_SPI_{DE,}ACT macros at call sitesMark Brown2012-07-191-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | They have very few users and they're both just doing a single register write so the advantage of having the macro is a bit limited. An inline function might make sense but it's as easy to just do the writes directly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi/s3c64xx: Convert to devm_request_and_ioremap()Mark Brown2012-07-191-17/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Saves some error handling and a small amount of code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi/s3c64xx: Put the /CS GPIO into output modeMark Brown2012-07-191-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No call was being made by the GPIO driver to put the GPIO into output mode meaning that the calls to gpio_set_value() which were being done were not valid. A similar issue appears to exist with the DT GPIO requests but as they appear to be being used for pinmux it's less clear to me that we want to configure them. Without this fix Cragganmore systems can't talk to their SPI devices. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi/s3c64xx: Fix handling of errors in gpio_request()Mark Brown2012-07-191-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When gpio_request() fails the driver logged the failure but while it'd try to print an error code in the non-DT case it didn't pass the error code in so garbage would be logged and in the DT case the error wasn't logged. Further, in the non-DT case the error code was then overwritten with -EBUSY depriving the caller of information and breaking automatic probe deferral pushing back from the GPIO level. Also reformat the non-DT log message so it's not word wrapped and we can grep for it. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi: s3c64xx: add device tree supportThomas Abraham2012-07-131-39/+264
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for device based discovery. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi: s3c64xx: Remove the 'set_level' callback from controller dataThomas Abraham2012-07-131-5/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The set_level callback in the controller data, which is used to configure the slave select line, cannot be supported when migrating the driver to device tree based discovery. Since all the platforms currently use gpio as the slave select line, this callback can be removed from the controller data and replaced with call to gpio_set_value in the driver. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | ARM: SAMSUNG: Remove pdev pointer parameter from spi gpio setup functionsThomas Abraham2012-07-131-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The platform data pointer that is passed to the spi gpio setup functions is not used. Hence, this parameter is removed from all the spi gpio setup functions. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi: s3c64xx: move controller information into driver dataThomas Abraham2012-07-131-27/+123
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform data is used to specify controller hardware specific information such as the tx/rx fifo level mask and bit offset of rx fifo level. Such information is not suitable to be supplied from device tree. Instead, it can be moved into the driver data and removed from platform data. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | spi: s3c64xx: remove unused S3C64XX_SPI_ST_TRLCNTZ macroThomas Abraham2012-07-131-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The macro S3C64XX_SPI_ST_TRLCNTZ is not used and hence it is removed. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Jaswinder Singh <jaswinder.singh@linaro.org> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* | | | Merge branch 'next/devel-dma-ops' into next/dt-samsungKukjin Kim2012-07-131-14/+19
|\ \ \ \ | |/ / / |/| | |
| * | | spi/s3c64xx: Add the use of DMA config operationBoojin Kim2012-06-201-14/+19
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Config operation is separated from request operation in DMA common operation. Because spi driver can change the DMA config for every transfer. So this patch is using the separated DMA config operation. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Kyoungil Kim <ki0351.kim@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
* / / SPI: fix over-eager devm_xxx() conversionRussell King2012-06-181-1/+2
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1a77b127ae (OMAP : SPI : use devm_* functions) converted the SPI device controller state to use devm_kzalloc(). Unfortunately, this is used against an unbound struct device, which results in the following when the device is bound to its driver: ------------[ cut here ]------------ WARNING: at /home/rmk/git/linux-rmk/drivers/base/dd.c:257 driver_probe_device+0x78/0x21c() Modules linked in: Backtrace: [<c0017d0c>] (dump_backtrace+0x0/0x10c) from [<c033e208>] (dump_stack+0x18/0x1c) r7:00000000 r6:c01ff28c r5:c040050c r4:00000101 [<c033e1f0>] (dump_stack+0x0/0x1c) from [<c00337ec>] (warn_slowpath_common+0x58/0x70) [<c0033794>] (warn_slowpath_common+0x0/0x70) from [<c0033828>] (warn_slowpath_null+0x24/0x2c) [<c0033804>] (warn_slowpath_null+0x0/0x2c) from [<c01ff28c>] (driver_probe_device+0x78/0x21c) [<c01ff214>] (driver_probe_device+0x0/0x21c) from [<c01ff49c>] (__driver_attach+0x6c/0x90) [<c01ff430>] (__driver_attach+0x0/0x90) from [<c01fda70>] (bus_for_each_dev+0x58/0x98) [<c01fda18>] (bus_for_each_dev+0x0/0x98) from [<c01ff0f4>] (driver_attach+0x20/0x28) [<c01ff0d4>] (driver_attach+0x0/0x28) from [<c01fe2f4>] (bus_add_driver+0xb4/0x230) [<c01fe240>] (bus_add_driver+0x0/0x230) from [<c01ffb24>] (driver_register+0xac/0x138) [<c01ffa78>] (driver_register+0x0/0x138) from [<c0215d4c>] (spi_register_driver+0x4c/0x60) [<c0215d00>] (spi_register_driver+0x0/0x60) from [<c045414c>] (ks8851_init+0x14/0x1c) [<c0454138>] (ks8851_init+0x0/0x1c) from [<c0008770>] (do_one_initcall+0x9c/0x164) [<c00086d4>] (do_one_initcall+0x0/0x164) from [<c0436410>] (kernel_init+0x128/0x210) [<c04362e8>] (kernel_init+0x0/0x210) from [<c0038754>] (do_exit+0x0/0x72c) ---[ end trace 4dcda79f5e89dd84 ]--- ks8851 spi1.0: message enable is 0 ks8851 spi1.0: eth0: revision 0, MAC 08:00:28:01:4d:c6, IRQ 194, has EEPROM Fix this by partially reverting the original commit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-20 20:48:50 +0000