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2010-05-27drivers/mmc/host: use ERR_CASTJulia Lawall1-1/+1
Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)). The former makes more clear what is the purpose of the operation, which otherwise looks like a no-op. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ type T; T x; identifier f; @@ T f (...) { <+... - ERR_PTR(PTR_ERR(x)) + x ...+> } @@ expression x; @@ - ERR_PTR(PTR_ERR(x)) + ERR_CAST(x) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci-spear: ST SPEAr based SDHCI controller glueViresh KUMAR3-0/+311
Add a glue layer to support the sdhci driver on the ST SPEAr platform. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Cc: <shiraz.hashim@st.com> Cc: Linus Walleij <linus.ml.walleij@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdio: add new function for RAW (Read after Write) operationGrazvydas Ignotas1-0/+30
SDIO specification allows RAW (Read after Write) operation using IO_RW_DIRECT command (CMD52) by setting the RAW bit. This operation is similar to ordinary read/write commands, except that both write and read are performed using single command/response pair. The Linux SDIO layer already supports this internaly, only external function is missing for drivers to make use, which is added by this patch. This type of command is required to implement proper power save mode support in wl1251 wifi driver. Android has similar patch for G1 in it's tree for the same reason: http://android.git.kernel.org/?p=kernel/common.git;a=commitdiff;h=74a47786f6ecbe6c1cf9fb15efe6a968451deb52 Signed-off-by: Grazvydas Ignotas <notasas@gmail.com> Acked-by: Kalle Valo <kalle.valo@iki.fi> Cc: Dmitry Shmidt <dimitrysh@google.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: remove the "state" argument to mmc_suspend_host()Matt Fleming22-25/+22
Even though many mmc host drivers pass a pm_message_t argument to mmc_suspend_host() that argument isn't used the by MMC core. As host drivers are converted to dev_pm_ops they'll have to construct pm_message_t's (as they won't be passed by the PM subsystem any more) just to appease the mmc suspend interface. We might as well just delete the unused paramter. Signed-off-by: Matt Fleming <matt@console-pimps.org> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>ZZ Acked-by: Sascha Sommer <saschasommer@freenet.de> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: OMAP HS-MMC: convert to dev_pm_opsKevin Hilman1-4/+11
Convert PM operations to use dev_pm_ops. This will facilitate the runtime PM coversion which will add to dev_pm_ops hooks. Note that dev_pm_ops version of the suspend hook no longer takes a 'state' argument. However, the MMC core function mmc_suspend_host() still takes a 'state' argument, but it is unused, so a dummy state variable was created to pass to the MMC core. In the future, the MMC core should be converted to drop this state argument and the rest of the MMC drivers could be easily converted to dev_pm_ops as well. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Matt Fleming <matt@console-pimps.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Denis Karpov <ext-denis.2.karpov@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27omap_hsmmc: improve interrupt synchronisationAdrian Hunter1-128/+134
The following changes were needed: - do not use in_interrupt() because it will not work with threaded interrupts In addition, the following improvements were made: - ensure DMA is unmapped only after the final DMA interrupt - ensure a request is completed only after the final DMA interrupt - disable controller interrupts when a request is not in progress - remove the spin-lock protecting the start of a new request from an unexpected interrupt because the locking was complicated and a 'req_in_progress' flag suffices (since the spin-lock only defers the unexpected interrupts anyway) - instead use the spin-lock to protect the MMC interrupt handler from the DMA interrupt handler - remove the semaphore preventing DMA from being started while the previous DMA is still in progress - the other changes make that impossible, so it is now a BUG_ON condition - ensure the controller interrupt status is clear before exiting the interrrupt handler In general, these changes make the code safer but do not fix any specific bugs so backporting is not necessary. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Tested-by: Venkatraman S <svenkatr@ti.com> Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci: enable multiblock transfers in sdhci-s3cMaurus Cuelenaere1-3/+0
Wifi over SDIO doesn't work correctly without multiblock, so enable this. This patch depends on the following patches: Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Cc: Thomas Abraham <thomas.ab@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: s3c6410: enable ADMA feature in 6410 sdhci controllerThomas Abraham1-6/+1
Enable the ADMA feature in the 6410 SDHCI controller driver. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: s3c6410: add new quirk in sdhci driver and update ADMA descriptor buildThomas Abraham2-5/+17
The s3c6410 sdhci controller does not support the 'End' attribute and NOP attribute in the same 8-Byte ADMA descriptor. This patch adds a new quirk to identify sdhci host contollers with such behaviour. In addition to this, for controllers using the new quirk, the last entry in the ADMA descritor table is marked with the 'End' attribute (instead of using a NOP descriptor with 'End' attribute). Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci: build fix: rename SDHCI I/O accessor functionsMatt Fleming3-30/+30
Unfortunately some architectures #define their read{b,w,l} and write{b,w,l} I/O accessors which makes the SDHCI I/O accessor functions of the same names subject to preprocessing. This leads to the following compiler error, In file included from drivers/mmc/host/sdhci.c:26: drivers/mmc/host/sdhci.h:318:35: error: macro "writel" passed 3 arguments, but takes just 2 Rename the SDHCI I/O functions so that CONFIG_MMC_SDHCI_IO_ACCESSORS can be enabled for architectures that implement their read{b,w,l} and write{b,w,l} functions with macros. Signed-off-by: Matt Fleming <matt@console-pimps.org> Cc: Zhangfei Gao <zgao6@marvell.com> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Ben Dooks <ben-linux@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: SDHCI_INT_DATA_MASK typo errorZhangfei Gao1-1/+1
Signed-off-by: Zhangfei Gao <zgao6@marvell.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: atmel-mci: Add support for SDIO interruptsAnders Grahn1-4/+38
Atmel-mci support for SDIO interrupts. This adds the enable_sdio_irq() function and the configuration of sdio irq mask per slot. With this irq mask information, we keep the idea of multiple slot per sd/mmc host (not only A and B). MMC_CAP_SDIO_IRQ is added according to slot configuration. A new little function is added to run mmc_signal_sdio_irq() during interrupt handling routine. Signed-off-by: Anders Grahn <anders.grahn@hd-wireless.se> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: add support MMCIF for SuperHYusuke Goda3-0/+974
MMCIF is the MMC Host Interface in SuperH. Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Cc: Ben Hutchings <ben@decadent.org.uk> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: atmel-mci: enable SD high speed supportNicolas Ferre1-3/+19
Enable high speed support for atmel-mci driver. This support is dependent of the revision of the IP and, of course, the capacity of the SD card used. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reviewed-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Maciej Sosnowski <maciej.sosnowski@intel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc: sd: clean up redundant memsetMark Asselstine1-2/+0
The clearing of mrq via a memset at the top of the for loop in mmc_wait_for_app_cmd() is not required as mrq is not used and there is another clearing of mrq just below. We remove the first memset since if the initial tests in the for loop fail the memset is not required. Signed-off-by: Mark Asselstine <asselsm@gmail.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27davinci: mmc: updates to suspend/resume implementationChaithrika U S1-8/+43
Improve the suspend and resume callbacks in DaVinci MMC host controller driver. Modify the reset status of the contorller and clock during suspend and resume. Also migrate the power management callbacks from platform driver to dev_pm_ops structure. Tested on DA850/OMAP-L138 EVM. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Chaithrika U S <chaithrika@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: Vipin Bhandari <vipin.bhandari@ti.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27davinci: mmc: add a function to control reset state of the controllerChaithrika U S1-21/+16
Add a helper function which will aid in changing the reset status of the controller. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: Vipin Bhandari <vipin.bhandari@ti.com> Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci-pltfm: do not print errors in case of an extended iomem sizeAnton Vorontsov1-1/+1
Some hosts have an extended SDHCI iomem size, so the driver should only print errors if the iomem size is less than 0x100. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Richard Röjfors <richard.rojfors@pelagicore.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Ben Dooks <ben@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci-pltfm: implement platform data passingAnton Vorontsov1-4/+20
This includes platform ops, quirks and (de)initialization callbacks. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Richard Röjfors <richard.rojfors@pelagicore.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Ben Dooks <ben@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27sdhci: implement CAP_CLOCK_BASE_BROKEN quirkAnton Vorontsov2-1/+4
Some hosts (e.g. as found in CNS3xxx SOCs) report wrong value in CLOCK_BASE capability field, and currently there is no way to force the SDHCI core to use the platform-provided base clock value. This patch implements CAP_CLOCK_BASE_BROKEN quirk. When enabled, the SDHCI core will always use base clock frequency provided by the platform. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Cc: Richard Röjfors <richard.rojfors@pelagicore.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Ben Dooks <ben@simtec.co.uk> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27mmc-omap: add support for 16-bit and 32-bit registersMarek Belisko1-29/+33
The omap850 and omap730 use 16-bit registers instead of 32-bit, requiring a modification of the register addresses in the mmc-omap driver. To resolve this, a bit shift is performed on base register addresses, either by 1 or 2 bits depending on the CPU in use. This yields the correct registers for each CPU. Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com> Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Cc: Ladislav Michl <ladis@linux-mips.org> Cc: Ben Dooks <ben@fluff.org> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27davinci: mmc: pass number of SG segments as platform dataSudhakar Rajashekhara1-7/+17
On some platforms like DM355, the number of EDMA parameter slots available for EDMA_SLOT_ANY usage are few. In such cases, if MMC/SD uses 16 slots for each instance of MMC controller, then the number of slots available for other modules will be very few. By passing the number of EDMA slots to be used in MMC driver from platform data, EDMA slots available for other purposes can be controlled. Most of the platforms will not use this platform data variable. But on DM355, as the number of EDMA resources available is limited, the number of scatter- gather segments used inside the MMC driver can be 8 (passed as platform data) instead of 16. On DM355, when the number of scatter-gather segments was reduced to 8, I saw a performance difference of about 0.25-0.4 Mbytes/sec during write. Read performance variations were negligible. Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2-15/+105
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits) ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900 ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline ARM: 6140/1: silence a bogus sparse warning in unwind.c ARM: mach-at91: duplicated include ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup ARM: SPEAR6xx: remove duplicated #include ARM: s3c6400_defconfig: Add NAND driver ARM: s3c6400_defconfig: enable sound as modules ARM: s3c6400_defconfig: enable power management ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34 ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34 ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34 ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34 ...
2010-05-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2-31/+349
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (25 commits) sh: fix up sh7785lcr_32bit_defconfig. arch/sh/lib/strlen.S: Checkpatch cleanup sh: fix up sh7786 dmaengine build. sh: guard cookie consistency across termination in the DMA driver sh: prevent the DMA driver from unloading, while in use sh: fix Oops in the serial SCI driver sh: allow platforms to specify SD-card supported voltages mmc: let MFD's provide supported Vdd card voltages to tmio_mmc sh: disable SD-card write-protection detection on kfr2r09 mfd: pass platform flags down to the tmio_mmc driver tmio: add a platform flag to disable card write-protection detection sh: Add SDHI DMA support to migor sh: Add SDHI DMA support to kfr2r09 sh: Add SDHI DMA support to ms7724se sh: Add SDHI DMA support to ecovec mmc: add DMA support to tmio_mmc driver, when used on SuperH sh: prepare the SDHI MFD driver to pass DMA configuration to tmio_mmc.c mmc: prepare tmio_mmc for passing of DMA configuration from the MFD cell sh: add DMA slave definitions to sh7724 sh: add DMA slaves for two SDHI controllers to sh7722 ...
2010-05-22mmc: let MFD's provide supported Vdd card voltages to tmio_mmcGuennadi Liakhovetski1-1/+4
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22tmio: add a platform flag to disable card write-protection detectionGuennadi Liakhovetski1-1/+4
Write-protection status is not always available, e.g., micro-SD cards do not have a write-protection switch at all. This patch adds a flag to let platforms force tmio_mmc to consider the card writable. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22mmc: add DMA support to tmio_mmc driver, when used on SuperHGuennadi Liakhovetski2-30/+342
SDHI controllers on SuperH, served by the tmio_mmc driver, can use slave DMA for data transfer. This patch adds support for the dmaengine API to the tmio_mmc driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-05-22Merge remote branch 'origin' into secretlab/next-devicetreeGrant Likely7-202/+334
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-22of: Remove duplicate fields from of_platform_driverGrant Likely1-2/+5
.name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-21Merge branch 'next' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: DMAENGINE: extend the control command to include an arg async_tx: trim dma_async_tx_descriptor in 'no channel switch' case DMAENGINE: DMA40 fix for allocation of logical channel 0 DMAENGINE: DMA40 support paused channel status dmaengine: mpc512x: Use resource_size DMA ENGINE: Do not reset 'private' of channel ioat: Remove duplicated devm_kzalloc() calls for ioatdma_device ioat3: disable cacheline-unaligned transfers for raid operations ioat2,3: convert to producer/consumer locking ioat: convert to circ_buf DMAENGINE: Support for ST-Ericssons DMA40 block v3 async_tx: use of kzalloc/kfree requires the include of slab.h dmaengine: provide helper for setting txstate DMAENGINE: generic channel status v2 DMAENGINE: generic slave control v2 dma: timb-dma: Update comment and fix compiler warning dma: Add timb-dma DMAENGINE: COH 901 318 fix bytesleft DMAENGINE: COH 901 318 rename confusing vars
2010-05-21Merge branch 'msm-mmc_sdcc' of ↵Linus Torvalds2-186/+301
git://codeaurora.org/quic/kernel/dwalker/linux-msm * 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm: drivers: mmc: msm_sdcc: Add EMBEDDED_SDIO support mmc: msm_sdcc: Fix issue where clocks could be disabled mid transaction mmc: msm_sdcc: Fix the dma exec function to use the proper delays mmc: msm_sdcc: Don't set host->curr.mrq until after we're sure the busclk timer won't fire mmc: msm_sdcc: Enable busclk idle timer for power savings mmc: msm_sdcc: Don't disable interrupts while suspending mmc: msm_sdcc: Fix issue where we might not end a sucessfull request mmc: msm_sdcc: Featurize busclock power save and disable it by default mmc: msm_sdcc: Fix bug where busclk expiry timer was not properly disabled mmc: msm_sdcc: Reduce command timeouts and improve reliability. mmc: msm_sdcc: Schedule clock disable after probe mmc: msm_sdcc: Wrap readl/writel calls with appropriate clk delays mmc: msm_sdcc: Driver clocking/irq improvements msm: Add 'execute' datamover callback mmc: msm_sdcc: Snoop SDIO_CCCR_ABORT register mmc: msm_sdcc: Clean up clock management and add a 10us delay after enabling clocks
2010-05-20Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6 into ↵Russell King2-15/+105
devel-stable
2010-05-19Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds3-6/+21
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (224 commits) ARM: remove 'select GENERIC_TIME' ARM: 6136/1: ARCH_REQUIRE_GPIOLIB selects GENERIC_GPIO ARM: 6074/1: oprofile: convert from sysdev to platform device ARM: 6073/1: oprofile: remove old files and update KConfig ARM: 6072/1: oprofile: use perf-events framework as backend ARM: 6071/1: perf-events: allow modules to query the number of hardware counters ARM: 6070/1: perf-events: add support for xscale PMUs ARM: 6069/1: perf-events: use numeric ID to identify PMU ARM: 6064/1: pmu: register IRQs at runtime ARM: Optionally allow ARMv6 to use 'normal, bufferable' memory for DMA ARM: 6134/1: Handle instruction cache maintenance fault properly ARM: nwfpe: allow debugging output to be configured at runtime ARM: rename mach_cpu_disable() to platform_cpu_disable() ARM: 6132/1: PL330: Add common core driver ARM: 6094/1: Extend cache-l2x0 to support the 16-way PL310 ARM: Move memory mapping into mmu.c ARM: Ensure meminfo is sorted prior to sanity_check_meminfo ARM: Remove useless linux/bootmem.h includes ARM: convert /proc/cpu/aligment to seq_file arm: use asm-generic/scatterlist.h ...
2010-05-18of: Always use 'struct device.of_node' to get device node pointer.Grant Likely2-3/+3
The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-17Merge branch 'ioat' into dmaengineDan Williams27-11/+28
2010-05-17DMAENGINE: extend the control command to include an argLinus Walleij1-1/+1
This adds an argument to the DMAengine control function, so that we can later provide control commands that need some external data passed in through an argument akin to the ioctl() operation prototype. [dan.j.williams@intel.com: fix up some missed conversions] Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2010-05-17Merge branch 'devel-stable' into develRussell King27-12/+29
Conflicts: arch/arm/Kconfig arch/arm/include/asm/system.h arch/arm/mm/Kconfig
2010-05-17ARM: mx3: Fix a race condition in mxcmmcDaniel Mack1-1/+12
From cefcdab08d1c9636c4a7290bc2bbe937d051bce4 Mon Sep 17 00:00:00 2001 From: Volker Ernst <volker.ernst@txtr.com> Date: Mon, 26 Apr 2010 22:51:07 +0200 Subject: [PATCH] ARM: mx3: Fix a race condition in mxcmmc This fixes a race condition regarding interrupt bits in the SDHC controller driver code. In case of PIO-transfer it does not clear SDHC-status bit#11/12 in the INT-handler anymore. INT-handler might be called during an ongoing PIO-data-transfer (with some other INT-flag set) and PIO-transfer depends on these bits being set to detect the end of the data-transfer. This also means that at the end of PIO- transfer that PIO-software has to clear these bits itself. However in case of DMA-transfer these bits have to be cleared in the INT-handler, because they are used to generate INTs then. Works solid, no more problems here, can transfer big files. Signed-off-by: Volker Ernst <volker.ernst@txtr.com> Acked-by: Daniel Mack <daniel@caiaq.de> Cc: Andy Green <andy@warmcat.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-05-15mmc: at91_mci: modify cache flush routinesNicolas Ferre1-1/+1
As we were using an internal dma flushing routine, this patch changes to the DMA API flush_kernel_dcache_page(). Driver is able to compile now. [akpm@linux-foundation.org: flush_kernel_dcache_page() comes before kunmap_atomic()] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-11mmc: atmel-mci: fix in debugfs: response value printingNicolas Ferre1-2/+2
In debugfs, printing of command response reports resp[2] twice: fix it to resp[3]. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-11mmc: atmel-mci: remove data error interrupt after xferNicolas Ferre1-0/+1
Disable data error interrupts while we are actually recording that there is not such errors. This will prevent, in some cases, the warning message printed at new request queuing (in atmci_start_request()). Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-11mmc: atmel-mci: prevent kernel oops while removing cardNicolas Ferre1-4/+5
The removing of an SD card in certain circumstances can lead to a kernel oops if we do not make sure that the "data" field of the host structure is valid. This patch adds a test in atmci_dma_cleanup() function and also calls atmci_stop_dma() before throwing away the reference to data. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-11mmc: atmel-mci: fix two parameters swappedNicolas Ferre1-2/+2
Two parameters were swapped in the calls to atmci_init_slot(). Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Reported-by: Anders Grahn <anders.grahn@hd-wireless.se> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-mmc@vger.kernel.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-11[ARM] pxa: make it clear by converting MMC 'delay_detect' to millisecondEric Miao1-1/+1
delay_detect in HZ is confusing, convert it to be millisecond based. And thus remove those unnecessary call to msecs_to_jiffies() at runtime for this field. Other constants are converted assuming HZ == 100, which are basically true for those platforms. The assignment in csb726.c was incorrect, and is fixed in this patch as a result. Signed-off-by: Eric Miao <eric.y.miao@gmail.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Marc Zyngier <maz@misterjones.org> Acked-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Daniel Mack <daniel@caiaq.de>
2010-04-14ARM: 6033/1: ARM: MMCI: pass max frequency from platformLinus Walleij1-1/+12
This introduce the field f_max into the mmci_platform_data, making it possible to pass in a desired block clocking frequency from a board configuration. This is often more desirable than using a module parameter. We keep the module parameter as a fallback as well as the default frequency specified for this parameter if a parameter is not provided. This also adds some kerneldoc style documentation to the platform data struct in mmci.h. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-14ARM: 6032/1: ARM: MMCI: support 8bit mode on the ST Micro versionLinus Walleij2-4/+8
This adds support for an 8bit wide bus to the card (data lines MCIDAT0 through 7 exist) on the ST Micro version and alters the U300 platform to support this. Also add some ST_ prefix to the ST-specific registers. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-14ARM: MXC: mxcmmc: work around a bug in the SDHC busy line handlingDaniel Mack2-0/+22
MX3 SoCs have a silicon bug which corrupts CRC calculation of multi-block transfers when connected SDIO peripheral doesn't drive the BUSY line as required by the specs. One way to prevent this is to only allow 1-bit transfers. Another way is playing tricks with the DMA engine, but this isn't mainline yet. So for now, we live with the performance drawback of 1-bit transfers until a nicer solution is found. This patch introduces a new host controller callback 'init_card' which is for now only called from mmc_sdio_init_card(). Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Volker Ernst <volker.ernst@txtr.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Michał Mirosław <mirqus@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14ARM: MXC: mxcmmc: Teach the driver SDIO operationsDaniel Mack1-11/+59
Successfully tested on MX31 hardware using libertas SDIO peripherals. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Volker Ernst <volker.ernst@txtr.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Michał Mirosław <mirqus@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14ARM: MXC: mxcmmc: misc cleanupsDaniel Mack1-4/+13
Be more verbose on error messages and add one debug message. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Volker Ernst <volker.ernst@txtr.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Michał Mirosław <mirqus@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-07omap hsmmc: fix a bug in card remove scenarioMadhusudhan Chikkature1-7/+2
The reset of data lines when the card is removed from the cage results in a failure.The failure is seen if the card is removed from the cage when TC is pending after a CMD with data received CC.The reset logic leaves the controller in a state where niether a TC is received nor DTO. The rest code can be safely removed here since it is taken care in the IRQ handler. Signed-off-by: Madhusudhan Chikkature <madhu.cr@ti.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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