summaryrefslogtreecommitdiff
path: root/drivers/spi
AgeCommit message (Collapse)AuthorFilesLines
2012-04-06Merge branch 'akpm' (Andrew's patch-bomb)Linus Torvalds1-7/+1
Merge batch of fixes from Andrew Morton: "The simple_open() cleanup was held back while I wanted for laggards to merge things. I still need to send a few checkpoint/restore patches. I've been wobbly about merging them because I'm wobbly about the overall prospects for success of the project. But after speaking with Pavel at the LSF conference, it sounds like they're further toward completion than I feared - apparently davem is at the "has stopped complaining" stage regarding the net changes. So I need to go back and re-review those patchs and their (lengthy) discussion." * emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches) memcg swap: use mem_cgroup_uncharge_swap fix backlight: add driver for DA9052/53 PMIC v1 C6X: use set_current_blocked() and block_sigmask() MAINTAINERS: add entry for sparse checker MAINTAINERS: fix REMOTEPROC F: typo alpha: use set_current_blocked() and block_sigmask() simple_open: automatically convert to simple_open() scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open() libfs: add simple_open() hugetlbfs: remove unregister_filesystem() when initializing module drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback fs/xattr.c:setxattr(): improve handling of allocation failures fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed fs/xattr.c: suppress page allocation failure warnings from sys_listxattr() sysrq: use SEND_SIG_FORCED instead of force_sig() proc: fix mount -t proc -o AAA
2012-04-06simple_open: automatically convert to simple_open()Stephen Boyd1-7/+1
Many users of debugfs copy the implementation of default_open() when they want to support a custom read/write function op. This leads to a proliferation of the default_open() implementation across the entire tree. Now that the common implementation has been consolidated into libfs we can replace all the users of this function with simple_open(). This replacement was done with the following semantic patch: <smpl> @ open @ identifier open_f != simple_open; identifier i, f; @@ -int open_f(struct inode *i, struct file *f) -{ ( -if (i->i_private) -f->private_data = i->i_private; | -f->private_data = i->i_private; ) -return 0; -} @ has_open depends on open @ identifier fops; identifier open.open_f; @@ struct file_operations fops = { ... -.open = open_f, +.open = simple_open, ... }; </smpl> [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-30Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds4-8/+13
Pull slave-dmaengine update from Vinod Koul: "This includes the cookie cleanup by Russell, the addition of context parameter for dmaengine APIs, more arm dmaengine driver cleanup by moving code to dmaengine, this time for imx by Javier and pl330 by Boojin along with the usual driver fixes." Fix up some fairly trivial conflicts with various other cleanups. * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (67 commits) dmaengine: imx: fix the build failure on x86_64 dmaengine: i.MX: Fix merge of cookie branch. dmaengine: i.MX: Add support for interleaved transfers. dmaengine: imx-dma: use 'dev_dbg' and 'dev_warn' for messages. dmaengine: imx-dma: remove 'imx_dmav1_baseaddr' and 'dma_clk'. dmaengine: imx-dma: remove unused arg of imxdma_sg_next. dmaengine: imx-dma: remove internal structure. dmaengine: imx-dma: remove 'resbytes' field of 'internal' structure. dmaengine: imx-dma: remove 'in_use' field of 'internal' structure. dmaengine: imx-dma: remove sg member from internal structure. dmaengine: imx-dma: remove 'imxdma_setup_sg_hw' function. dmaengine: imx-dma: remove 'imxdma_config_channel_hw' function. dmaengine: imx-dma: remove 'imxdma_setup_mem2mem_hw' function. dmaengine: imx-dma: remove dma_mode member of internal structure. dmaengine: imx-dma: remove data member from internal structure. dmaengine: imx-dma: merge old dma-v1.c with imx-dma.c dmaengine: at_hdmac: add slave config operation dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic dmaengine/dma_slave: introduce inline wrappers dma: imx-sdma: Treat firmware messages as warnings instead of erros ...
2012-03-29Merge tag 'split-asm_system_h-for-linus-20120328' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system Pull "Disintegrate and delete asm/system.h" from David Howells: "Here are a bunch of patches to disintegrate asm/system.h into a set of separate bits to relieve the problem of circular inclusion dependencies. I've built all the working defconfigs from all the arches that I can and made sure that they don't break. The reason for these patches is that I recently encountered a circular dependency problem that came about when I produced some patches to optimise get_order() by rewriting it to use ilog2(). This uses bitops - and on the SH arch asm/bitops.h drags in asm-generic/get_order.h by a circuituous route involving asm/system.h. The main difficulty seems to be asm/system.h. It holds a number of low level bits with no/few dependencies that are commonly used (eg. memory barriers) and a number of bits with more dependencies that aren't used in many places (eg. switch_to()). These patches break asm/system.h up into the following core pieces: (1) asm/barrier.h Move memory barriers here. This already done for MIPS and Alpha. (2) asm/switch_to.h Move switch_to() and related stuff here. (3) asm/exec.h Move arch_align_stack() here. Other process execution related bits could perhaps go here from asm/processor.h. (4) asm/cmpxchg.h Move xchg() and cmpxchg() here as they're full word atomic ops and frequently used by atomic_xchg() and atomic_cmpxchg(). (5) asm/bug.h Move die() and related bits. (6) asm/auxvec.h Move AT_VECTOR_SIZE_ARCH here. Other arch headers are created as needed on a per-arch basis." Fixed up some conflicts from other header file cleanups and moving code around that has happened in the meantime, so David's testing is somewhat weakened by that. We'll find out anything that got broken and fix it.. * tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits) Delete all instances of asm/system.h Remove all #inclusions of asm/system.h Add #includes needed to permit the removal of asm/system.h Move all declarations of free_initmem() to linux/mm.h Disintegrate asm/system.h for OpenRISC Split arch_align_stack() out from asm-generic/system.h Split the switch_to() wrapper out of asm-generic/system.h Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h Create asm-generic/barrier.h Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h Disintegrate asm/system.h for Xtensa Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt] Disintegrate asm/system.h for Tile Disintegrate asm/system.h for Sparc Disintegrate asm/system.h for SH Disintegrate asm/system.h for Score Disintegrate asm/system.h for S390 Disintegrate asm/system.h for PowerPC Disintegrate asm/system.h for PA-RISC Disintegrate asm/system.h for MN10300 ...
2012-03-28Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-5/+0
Pull "ARM: More device tree support updates" from Olof Johansson: "This branch contains a number of updates for device tree support on several ARM platforms, in particular: * AT91 continues the device tree conversion adding support for a number of on-chip drivers and other functionality * ux500 adds probing of some of the core SoC blocks through device tree * Initial device tree support for ST SPEAr600 platforms * kirkwood continues the conversion to device-tree probing" Manually merge arch/arm/mach-ux500/Kconfig due to MACH_U8500 rename, and drivers/usb/gadget/at91_udc.c due to header file include cleanups. Also do an "evil merge" for the MACH_U8500 config option rename that the affected RMI4 touchscreen driver in staging. It's called MACH_MOP500 now, and it was missed during previous merges. * tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits) ARM: SPEAr600: Add device-tree support to SPEAr600 boards ARM: ux500: Provide local timer support for Device Tree ARM: ux500: Enable PL022 SSP Controller in Device Tree ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree ARM: ux500: db8500: list most devices in the snowball device tree ARM: ux500: split dts file for snowball into generic part ARM: ux500: combine the board init functions for DT boot ARM: ux500: Initial Device Tree support for Snowball ARM: ux500: CONFIG: Enable Device Tree support for future endeavours ARM: kirkwood: use devicetree for rtc-mv ARM: kirkwood: rtc-mv devicetree bindings ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0 ARM: kirkwood: fdt: facilitate new boards during fdt migration ARM: kirkwood: fdt: absorb kirkwood_init() ARM: kirkwood: fdt: use mrvl ticker symbol ARM: orion: wdt: use resource vice direct access ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data. ARM: orion: spi: remove enable_clock_fix which is not used ...
2012-03-28Remove all #inclusions of asm/system.hDavid Howells1-1/+0
Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *` Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2-2/+2
Pull "ARM: global cleanups" from Arnd Bergmann: "Quite a bit of code gets removed, and some stuff moved around, mostly the old samsung s3c24xx stuff. There should be no functional changes in this series otherwise. Some cleanups have dependencies on other arm-soc branches and will be sent in the second round. Signed-off-by: Arnd Bergmann <arnd@arndb.de>" Fixed up trivial conflicts mainly due to #include's being changes on both sides. * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits) ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver ARM: EXYNOS: add clock registers for exynos4x12-cpufreq PM / devfreq: update the name of EXYNOS clock registers that were omitted PM / devfreq: update the name of EXYNOS clock register ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock ARM: EXYNOS: use static declaration on regarding clock ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs ARM: OMAP2+: Fix build error after merge ARM: S3C24XX: remove call to s3c24xx_setup_clocks ...
2012-03-21Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds17-409/+2746
Pull SPI changes for v3.4 from Grant Likely: "Mostly a bunch of new drivers and driver bug fixes; but this also includes a few patches that create a core message queue infrastructure for the spi subsystem instead of making each driver open code it." * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits) spi/fsl-espi: Make sure pm is within 2..32 spi/fsl-espi: make the clock computation easier to read spi: sh-hspi: modify write/read method spi: sh-hspi: control spi clock more correctly spi: sh-hspi: convert to using core message queue spi: s3c64xx: Fix build spi: s3c64xx: remove unnecessary callback msg->complete spi: remove redundant variable assignment spi: release lock on error path in spi_pump_messages() spi: Compatibility with direction which is used in samsung DMA operation spi-topcliff-pch: add recovery processing in case wait-event timeout spi-topcliff-pch: supports a spi mode setup and bit order setup by IO control spi-topcliff-pch: Fix issue for transmitting over 4KByte spi-topcliff-pch: Modify pci-bus number dynamically to get DMA device info spi/imx: simplify error handling to free gpios spi: Convert to DEFINE_PCI_DEVICE_TABLE spi: add Broadcom BCM63xx SPI controller driver SPI: add CSR SiRFprimaII SPI controller driver spi-topcliff-pch: fix -Wuninitialized warning spi: Mark spi_register_board_info() __devinit ...
2012-03-21dmaengine/dma_slave: introduce inline wrappersAlexandre Bounine4-8/+8
Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic() interfaces to hide new parameter from current users of affected interfaces. Convert current users to use new wrappers instead of direct calls. Suggested by Russell King [https://lkml.org/lkml/2012/2/3/269]. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-03-17Merge branch 'kirkwood_dt_for_3.4_v3' of ↵Arnd Bergmann1-5/+0
git://git.infradead.org/users/jcooper/linux-kirkwood into kirkwood/dt * 'kirkwood_dt_for_3.4_v3' of git://git.infradead.org/users/jcooper/linux-kirkwood: ARM: kirkwood: use devicetree for rtc-mv ARM: kirkwood: rtc-mv devicetree bindings ARM: kirkwood: fdt: define uart[01] as disabled, enable uart0 ARM: kirkwood: fdt: facilitate new boards during fdt migration ARM: kirkwood: fdt: absorb kirkwood_init() ARM: kirkwood: fdt: use mrvl ticker symbol ARM: orion: wdt: use resource vice direct access ARM: Kirkwood: Remove tclk from kirkwood_asoc_platform_data. ARM: orion: spi: remove enable_clock_fix which is not used
2012-03-16ARM: orion: spi: remove enable_clock_fix which is not usedAndrew Lunn1-5/+0
Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Jason Cooper <jason@lakedaemon.net> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-16spi/fsl-espi: Make sure pm is within 2..32Sebastian Andrzej Siewior1-4/+6
The reference manual says that pm has to stay within 2 and 32. So the lowest frequency is 32 and DIV16 set, the highest is 2 and DIV16 unset. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-16spi/fsl-espi: make the clock computation easier to readSebastian Andrzej Siewior1-2/+2
The -1 +1 thingy should probably do what DIV_ROUND_UP does. The 4 is 2 the "platform_clock => sysclock" and 2 from the computation part. The 64 is the same 4 times 16. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15Merge branch 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6 ↵Arnd Bergmann1-1/+1
into next/cleanup * 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6: ep93xx: Remove unnecessary includes of ep93xx-regs.h ep93xx: Move EP93XX_SYSCON defines to SoC private header ep93xx: Move crunch code to mach-ep93xx directory ep93xx: Make syscon access functions private to SoC ep93xx: Configure GPIO ports in core code ep93xx: Move peripheral defines to local SoC header ep93xx: Convert the watchdog driver into a platform device. ep93xx: Use ioremap for backlight driver ep93xx: Move GPIO defines to gpio-ep93xx.h ep93xx: Don't use system controller defines in audio drivers ep93xx: Move PHYS_BASE defines to local SoC header file (update to v3.3-rc7) Conflicts: arch/arm/mach-s3c2440/common.h
2012-03-15spi: sh-hspi: modify write/read methodKuninori Morimoto1-69/+24
Current sh-hspi had wrong write/read method which was not linux standard. If spi_transfer requests tx[2], rx[2] len=2, then, driver should run tx[0], rx[0], tx[1], rx[1]. But current sh-hspi runs tx[0], tx[1], rx[0], rx[1]. This patch fixes it up. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15spi: sh-hspi: control spi clock more correctlyKuninori Morimoto1-16/+70
Current sh-hspi had used platform-specific speed. This patch remove it, and use spi_transfer specific speed. It removes unnecessary flags from struct sh_hspi_info, but struct sh_hspi_info is still exist, since sh-hspi needs platform info in the future. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15spi: sh-hspi: convert to using core message queueKuninori Morimoto1-97/+55
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15spi: s3c64xx: Fix buildMark Brown1-1/+1
Commit 054ebc (spi: Compatibility with direction which is used in samsung DMA operation) does not build as one hunk adds a brace to the first branch of an if statement without adding at least the correspoding close. Remove the unwanted brace. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15spi: s3c64xx: remove unnecessary callback msg->completeKuninori Morimoto1-3/+0
msg->complete will be called in spi_finalize_current_message(). Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-15spi: remove redundant variable assignmentGuennadi Liakhovetski1-2/+0
The status variable is guaranteed to be 0 at that location anyway. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-11spi: release lock on error path in spi_pump_messages()Dan Carpenter1-0/+1
We should release the lock here and enable IRQs before returning. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> [grant.likely: move unlock above dev_err() call] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi: Compatibility with direction which is used in samsung DMA operationKyoungil Kim1-5/+5
I found that there are two kind of direction type. First one is dma_data_direction defined in include/linux/dma-direction.h. It is used for parameter of dma_map/unmap_single in spi-s3c64xx. The other one is dma_transter_direction defined in include/linux/dmaengine.h. It is used for direction of samsung DMA operation (arch/arm/plat-samsung/dma-ops.c). This patch is just some changes to use direction defines which is used in samsung DMA operation. Signed-off-by: Boojin Kim <boojin.kim@samsung.com> Signed-off-by: Kyoungil Kim <ki0351.kim@samsung.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi-topcliff-pch: add recovery processing in case wait-event timeoutTomoya MORINAGA1-1/+9
Currently, pch_spi_start_transfer failure is not anticipated. This patch adds the processing. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi-topcliff-pch: supports a spi mode setup and bit order setup by IO controlTomoya MORINAGA1-0/+1
This patch supports a spi mode setup and bit order setup by IO control. spi mode: mode 0 to mode 3 bit order: LSB first, MSB first Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi-topcliff-pch: Fix issue for transmitting over 4KByteTomoya MORINAGA1-11/+55
Currently, when spi-topcliff-pch receives transmit request over 4KByte, this driver can't process correctly. This driver needs to divide the data into 4Kbyte unit. This patch fixes the issue. Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi-topcliff-pch: Modify pci-bus number dynamically to get DMA device infoTomoya MORINAGA1-1/+2
Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi/imx: simplify error handling to free gpiosAxel Lin1-8/+3
Simplify the error handling by moving the code to free gpios in one place. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi: Convert to DEFINE_PCI_DEVICE_TABLEAxel Lin3-3/+3
Convert static struct pci_device_id *[] to static DEFINE_PCI_DEVICE_TABLE tables. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi: add Broadcom BCM63xx SPI controller driverFlorian Fainelli3-0/+493
This patch adds support for the SPI controller found on the Broadcom BCM63xx SoCs. Signed-off-by: Tanguy Bouzeloc <tanguy.bouzeloc@efixo.com> Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10SPI: add CSR SiRFprimaII SPI controller driverZhiwu Song3-0/+695
CSR SiRFprimaII has two SPIs (SPI0 and SPI1). Features: * Master and slave modes * 8-/12-/16-/32-bit data unit * 256 bytes receive data FIFO and 256 bytes transmit data FIFO * Multi-unit frame * Configurable SPI_EN (chip select pin) active state * Configurable SPI_CLK polarity * Configurable SPI_CLK phase * Configurable MSB/LSB first Signed-off-by: Zhiwu Song <zhiwu.song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi-topcliff-pch: fix -Wuninitialized warningDanny Kukawka1-16/+17
Fix for: drivers/spi/spi-topcliff-pch.c: In function ‘pch_spi_handler_sub’: drivers/spi/spi-topcliff-pch.c:325:17: warning: ‘bpw_len’ may be used uninitialized in this function [-Wuninitialized] drivers/spi/spi-topcliff-pch.c:325:42: warning: ‘rx_index’ may be used uninitialized in this function [-Wuninitialized] drivers/spi/spi-topcliff-pch.c:325:42: warning: ‘tx_index’ may be used uninitialized in this function [-Wuninitialized] Move usage of tx_index, rx_index and bpw_len into the same block as where they are set to prevent uninitialized usage. v2: instead of init variables with 0 move the whole block Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi: Mark spi_register_board_info() __devinitMark Brown1-1/+1
Some systems have SPI devices located on plugin modules which are enumerated at runtime as devices. The drivers for these plugin modules need to register their SPI devices at probe() time so want to be able to call spi_register_board_info() but that function is currently marked as __init rather than __devinit so this usage isn't legal. Change the annotation to __devinit to handle this. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi/s3c64xx: Convert to using core message queueMark Brown1-103/+22
Convert the s3c64xx driver to using the new message queue factored out of the pl022 driver by Linus Walleij, saving us a nice block of code and getting the benefits of improvements implemented in the core. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi: controller drivers don't need to depend on SPI_MASTER explicitlyUwe Kleine-König1-6/+5
They are all defined in an if SPI_MASTER ... endif block. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-10spi/doc: spi_master_put must be followed up by kfreeUwe Kleine-König1-1/+2
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-09spi: Add SuperH HSPI prototype driverKuninori Morimoto3-0/+371
This patch adds SuperH HSPI driver. It is still prototype driver, but has enough function at this point. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-08Merge branch 'next/cleanup-s3c24xx' of ↵Olof Johansson2-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup * 'next/cleanup-s3c24xx' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (24 commits) ARM: S3C24XX: remove call to s3c24xx_setup_clocks ARM: S3C24XX: add get_rate for clk_p on S3C2416/2443 ARM: S3C24XX: add get_rate for clk_h on S3C2416/2443 ARM: S3C24XX: remove XXX_setup_clocks method from S3C2443 ARM: S3C24XX: remove obsolete S3C2416_DMA option ARM: S3C24XX: Reuse S3C2443 dma for S3C2416 ARM: S3C24XX: Fix indentation of dma-s3c2443 ARM: S3C24XX: Move device setup files to mach directory ARM: S3C24XX: Consolidate Simtec extensions ARM: S3C24XX: move simtec-specific code to mach directory ARM: S3C24XX: Move common-smdk code to mach directory ARM: S3C24XX: Move s3c2443-clock.c to mach-s3c24xx ARM: s3c2410_defconfig: update s3c2410_defconfig ARM: S3C2443: move mach-s3c2443/* into mach-s3c24xx/ ARM: S3C2440: move mach-s3c2440/* into mach-s3c24xx/ ARM: S3C2416: move mach-s3c2416/* into mach-s3c24xx/ ARM: S3C2412: move mach-s3c2412/* into mach-s3c24xx/ ARM: S3C2410: move mach-s3c2410/* into mach-s3c24xx/ ARM: S3C24XX: change the ARCH_S3C2410 to ARCH_S3C24XX ARM: S3C2410: move s3c2410_baseclk_add to clock.h ...
2012-03-08spi: create a message queueing infrastructureLinus Walleij2-252/+390
This rips the message queue in the PL022 driver out and pushes it into (optional) common infrastructure. Drivers that want to use the message pumping thread will need to define the new per-messags transfer methods and leave the deprecated transfer() method as NULL. Most of the design is described in the documentation changes that are included in this patch. Since there is a queue that need to be stopped when the system is suspending/resuming, two new calls are implemented for the device drivers to call in their suspend()/resume() functions: spi_master_suspend() and spi_master_resume(). ChangeLog v1->v2: - Remove Kconfig entry and do not make the queue support optional at all, instead be more agressive and have it as part of the compulsory infrastructure. - If the .transfer() method is implemented, delete print a small deprecation notice and do not start the transfer pump. - Fix a bitrotted comment. ChangeLog v2->v3: - Fix up a problematic sequence courtesy of Chris Blair. - Stop rather than destroy the queue on suspend() courtesy of Chris Blair. Signed-off-by: Chris Blair <chris.blair@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-08spi: add support for Renesas RSPIShimoda, Yoshihiro3-0/+528
The SH7757 has RSPI module. This patch supports it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-08spi/spi-sh: add IORESOURCE_MEM_TYPE_MASK decoding for access sizeShimoda, Yoshihiro1-2/+23
This SPI controller's access size is 32, or 8-bit. The previous driver supported 32-bit only. So, this patch adds IORESOURCE_MEM_TYPE_MASK decoding, an then, the driver can handle the SPI controller of 8-bit. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-03-03ARM: S3C24XX: change the ARCH_S3C2410 to ARCH_S3C24XXKukjin Kim1-1/+1
This patch changes the ARCH name to "ARCH_S3C24XX" for Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, and S3C2450 SoCs so that we can merge the mach-xxx directories and plat-s3c24xx dir. to just one mach-s3c24xx for them. I think this should be sent to upstream via samsung tree because this touches many samsung stuff. Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Chris Ball <cjb@laptop.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Greg Kroah-Hartman <gregkh@suse.de> [for the gadget part:] Acked-by: Felipe Balbi <balbi@ti.com> [for the framebuffer (video) part:] Acked-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> [For the watchdog-part:] Acked-by: Wim Van Sebroeck <wim@iguana.be> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-02-22dmaengine: Pass dma_slave_config .device_fc = NULL for all existing usersViresh Kumar2-0/+5
.device_fc is added in struct dma_slave_config recently. All user drivers, which want DMA to be the flow controller must pass this field as false. As earlier driver don't look to use this feature, mark it false for now. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-02-15spi/omap: Add DT support to McSPI driverBenoit Cousson1-8/+48
Add device tree support to the OMAP2+ McSPI driver. Add the bindings documentation. Based on original code from Rajendra. Signed-off-by: Benoit Cousson <b-cousson@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-13Fix section mismatch in spi-pl022.cRussell King1-1/+1
WARNING: drivers/spi/built-in.o(.devinit.text+0xdb8): Section mismatch in reference from the function pl022_probe() to the function .init.text:pl022_dma_probe() The function __devinit pl022_probe() references a function __init pl022_dma_probe(). If pl022_dma_probe is only used by pl022_probe then annotate pl022_dma_probe with a matching annotation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-06spi-topcliff-pch: rename pch_spi_pcidev to pch_spi_pcidev_driverDanny Kukawka1-3/+3
Rename static struct pci_driver pch_spi_pcidev to pch_spi_pcidev_driver to get rid of warnings from modpost checks. Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-06spi: Add spi-s3c64xx driver dependency on ARCH_EXYNOS4Sylwester Nawrocki1-1/+1
The spi-s3c64xx driver is also used on Exynos4 so update the dependency to enable build on those platforms. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [grant.likely: relax depends to ARCH_EXYNOS instead of ARCH_EXYNOS4] Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-02spi/pl022: Add high priority message pump supportChris Blair1-25/+52
This switches the PL022 worker to a kthread in order to get hold of a mechanism to control the message pump priority. On low-latency systems elevating the message kthread to realtime priority give a real sleek response curve. This has been confirmed by measurements. Realtime priority elevation for a certain PL022 port can be requested from platform data. Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Chris Blair <chris.blair@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-02spi/nuc900: Remove unnecessary memset of struct nuc900_spiTobias Klauser1-2/+0
The memory allocated using kzalloc by spi_alloc_master so it doesn't need to be set to 0 again. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2012-01-31ARM: S3C24XX: move spi-s3c24xx platdata out of machHeiko Stuebner1-1/+1
spi.h now only contains the definition of the platform data structure for the driver in spi-s3c24xx.c . Therefore it does not need to stay in include/mach but can instead live in linux/spi/s3c24xx.h . Signed-off-by: Heiko Stuebner <heiko@sntech.de> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-01-30Merge branch 'spi/s3c64xx' of ↵Grant Likely1-11/+103
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc Conflicts: drivers/spi/spi-s3c64xx.c