summaryrefslogtreecommitdiffstats
path: root/drivers/spi
Commit message (Collapse)AuthorAgeFilesLines
* Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds2012-03-272-2/+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 ...
| * Merge branch 'ep93xx-for-arm-soc' of git://github.com/RyanMallon/linux-2.6 ↵Arnd Bergmann2012-03-151-1/+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
| * \ Merge branch 'next/cleanup-s3c24xx' of ↵Olof Johansson2012-03-082-2/+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 ...
| | * | ARM: S3C24XX: change the ARCH_S3C2410 to ARCH_S3C24XXKukjin Kim2012-03-031-1/+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>
| | * | ARM: S3C24XX: move spi-s3c24xx platdata out of machHeiko Stuebner2012-01-311-1/+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>
* | | | Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2012-03-2117-409/+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 ...
| * | | spi/fsl-espi: Make sure pm is within 2..32Sebastian Andrzej Siewior2012-03-151-4/+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>
| * | | spi/fsl-espi: make the clock computation easier to readSebastian Andrzej Siewior2012-03-151-2/+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>
| * | | spi: sh-hspi: modify write/read methodKuninori Morimoto2012-03-151-69/+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>
| * | | spi: sh-hspi: control spi clock more correctlyKuninori Morimoto2012-03-151-16/+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>
| * | | spi: sh-hspi: convert to using core message queueKuninori Morimoto2012-03-151-97/+55
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | | spi: s3c64xx: Fix buildMark Brown2012-03-151-1/+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>
| * | | spi: s3c64xx: remove unnecessary callback msg->completeKuninori Morimoto2012-03-151-3/+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>
| * | | spi: remove redundant variable assignmentGuennadi Liakhovetski2012-03-151-2/+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>
| * | | spi: release lock on error path in spi_pump_messages()Dan Carpenter2012-03-101-0/+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>
| * | | spi: Compatibility with direction which is used in samsung DMA operationKyoungil Kim2012-03-091-5/+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>
| * | | spi-topcliff-pch: add recovery processing in case wait-event timeoutTomoya MORINAGA2012-03-091-1/+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>
| * | | spi-topcliff-pch: supports a spi mode setup and bit order setup by IO controlTomoya MORINAGA2012-03-091-0/+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>
| * | | spi-topcliff-pch: Fix issue for transmitting over 4KByteTomoya MORINAGA2012-03-091-11/+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>
| * | | spi-topcliff-pch: Modify pci-bus number dynamically to get DMA device infoTomoya MORINAGA2012-03-091-1/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | | spi/imx: simplify error handling to free gpiosAxel Lin2012-03-091-8/+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>
| * | | spi: Convert to DEFINE_PCI_DEVICE_TABLEAxel Lin2012-03-093-3/+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>
| * | | spi: add Broadcom BCM63xx SPI controller driverFlorian Fainelli2012-03-093-0/+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>
| * | | SPI: add CSR SiRFprimaII SPI controller driverZhiwu Song2012-03-093-0/+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>
| * | | spi-topcliff-pch: fix -Wuninitialized warningDanny Kukawka2012-03-091-16/+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>
| * | | spi: Mark spi_register_board_info() __devinitMark Brown2012-03-091-1/+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>
| * | | spi/s3c64xx: Convert to using core message queueMark Brown2012-03-091-103/+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>
| * | | spi: controller drivers don't need to depend on SPI_MASTER explicitlyUwe Kleine-König2012-03-091-6/+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>
| * | | spi/doc: spi_master_put must be followed up by kfreeUwe Kleine-König2012-03-091-1/+2
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | | spi: Add SuperH HSPI prototype driverKuninori Morimoto2012-03-093-0/+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>
| * | | spi: create a message queueing infrastructureLinus Walleij2012-03-072-252/+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>
| * | | spi: add support for Renesas RSPIShimoda, Yoshihiro2012-03-073-0/+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>
| * | | spi/spi-sh: add IORESOURCE_MEM_TYPE_MASK decoding for access sizeShimoda, Yoshihiro2012-03-071-2/+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>
| * | | spi/omap: Add DT support to McSPI driverBenoit Cousson2012-02-151-8/+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>
| * | | spi/pl022: Add high priority message pump supportChris Blair2012-02-021-25/+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>
| * | | spi/nuc900: Remove unnecessary memset of struct nuc900_spiTobias Klauser2012-02-011-2/+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>
| * | | Merge branch 'spi/s3c64xx' of ↵Grant Likely2012-01-301-11/+103
| |\ \ \ | | |_|/ | |/| | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc Conflicts: drivers/spi/spi-s3c64xx.c
| | * | spi/s3c64xx: Implement runtime PM supportMark Brown2012-01-211-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable and disable the clocks to the SPI controller using runtime PM. This serves the dual purpose of reducing power consumption a little and letting the core know when the device is idle. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Heiko Stuebner <heiko@sntech.de>
| | * | spi/s3c64xx: Convert to dev_pm_opsMark Brown2012-01-211-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | In preparation for the addition of runtime PM ops. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | spi/s3c64xx: Log error interruptsMark Brown2012-01-211-2/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Although the hardware supports interrupts we're not currently using them at all since for small transfers the overhead is greater than that for busy waiting and for large transfers we have interrupts from the DMA. This means that if the hardware reports an error (especially one which might not stall transfer) we might miss it. Take a first pass at dealing with such errors by enabling the interrupt if we can and logging the errors if they happen. Ideally we'd report the error via the affected transfer but since we're in master mode it's very difficult to trigger errors at present and this code is much simpler. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* | | | Fix section mismatch in spi-pl022.cRussell King2012-02-131-1/+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>
* | | spi-topcliff-pch: rename pch_spi_pcidev to pch_spi_pcidev_driverDanny Kukawka2012-02-051-3/+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>
* | | spi: Add spi-s3c64xx driver dependency on ARCH_EXYNOS4Sylwester Nawrocki2012-02-051-1/+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>
* | Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2012-01-174-13/+16
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits) ARM: mach-shmobile: specify CHCLR registers on SH7372 dma: shdma: fix runtime PM: clear channel buffers on reset dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit dmaengine/ste_dma40: clear LNK on channel startup dmaengine: intel_mid_dma: remove legacy pm interface ASoC: mxs: correct 'direction' of device_prep_dma_cyclic dmaengine: intel_mid_dma: error path fix dmaengine: intel_mid_dma: locking and freeing fixes mtd: gpmi-nand: move to dma_transfer_direction mtd: fix compile error for gpmi-nand mmc: mxs-mmc: fix the dma_transfer_direction migration dmaengine: add DMA_TRANS_NONE to dma_transfer_direction dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled. dma: mxs-dma: fix a typo in comment DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove video i.MX IPU: Fix display connections i.MX IPU DMA: Fix wrong burstsize settings dmaengine/ste_dma40: allow fixed physical channel ... Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c} The conflicts looked pretty trivial, but I'll ask people to verify them.
| * \ Merge branch 'dma_slave_direction' into next_test_dirnVinod Koul2011-11-174-13/+16
| |\ \ | | | | | | | | | | | | | | | | resolved conflicts: drivers/media/video/mx3_camera.c
| | * | spi, serial: move to dma_transfer_directionVinod Koul2011-10-314-13/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fixup usage of dma direction by introducing dma_transfer_direction, this patch moves spi, serial drivers to use new enum Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Alan Cox <alan@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
| | | |
| \ \ \
*-. \ \ \ Merge tags 'devicetree-for-linus' and 'spi-for-linus' of ↵Linus Torvalds2012-01-141-2/+1
|\ \ \ \ \ | | |_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.secretlab.ca/git/linux-2.6 2nd set of device tree changes and SPI bug fixes for v3.3 * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: of/irq: Add interrupts-names property to name an irq resource of/address: Add reg-names property to name an iomem resource * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: spi/tegra: depend instead of select TEGRA_SYSTEM_DMA
| | * | | spi/tegra: depend instead of select TEGRA_SYSTEM_DMAOlof Johansson2012-01-021-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's unlikely that anyone ever wants to turn off SYSTEM_DMA, but just in case, it makes more sense to have the driver depend on it than select it. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | | | | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2012-01-141-2/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (119 commits) MIPS: Delete unused function add_temporary_entry. MIPS: Set default pci cache line size. MIPS: Flush huge TLB MIPS: Octeon: Remove SYS_SUPPORTS_HIGHMEM. MIPS: Octeon: Add support for OCTEON II PCIe MIPS: Octeon: Update PCI Latency timer and enable more error reporting. MIPS: Alchemy: Update cpu-feature-overrides MIPS: Alchemy: db1200: Improve PB1200 detection. MIPS: Alchemy: merge Au1000 and Au1300-style IRQ controller code. MIPS: Alchemy: chain IRQ controllers to MIPS IRQ controller MIPS: Alchemy: irq: register pm at irq init time MIPS: Alchemy: Touchscreen support on DB1100 MIPS: Alchemy: Hook up IrDA on DB1000/DB1100 net/irda: convert au1k_ir to platform driver. MIPS: Alchemy: remove unused board headers MTD: nand: make au1550nd.c a platform_driver MIPS: Netlogic: Mark Netlogic chips as SMT capable MIPS: Netlogic: Add support for XLP 3XX cores MIPS: Netlogic: Merge some of XLR/XLP wakup code MIPS: Netlogic: Add default XLP config. ... Fix up trivial conflicts in arch/mips/kernel/{perf_event_mipsxx.c, traps.c} and drivers/tty/serial/Makefile
| * | | | | MIPS: Alchemy: Au1300 SoC supportManuel Lauss2011-12-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add basic support for the Au1300 variant(s): - New GPIO/Interrupt controller - DBDMA ids - USB setup - MMC support - enable various PSC drivers - detection code. Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2866/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
OpenPOWER on IntegriCloud