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2011-03-17mmc: msm_sdcc: remove needless cache flush after dma_unmap_sg()Linus Walleij1-8/+0
dma_unmap_sg() already flushes the cache, I don't get what this code is doing here. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-16mmc: sh_mmcif: support aggressive clock gatingGuennadi Liakhovetski1-5/+5
To support MMC aggressive clock gating the driver has to stop the interface clock when the .set_ios() method is called with .clock == 0. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-16mmc: check if mmc cards < 2GB do sector addressingPhilip Rakity1-1/+11
Some TOSHIBA MMC cards only support sector addressing even though the size is < 2GB. According to JEDEC Spec JESD84-A441-1 the ocr register (bits 30, 29) determine byte/sector mode. Use them. Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-16mmc: core: comment on why sdio_reset is done at init timePhilip Rakity1-0/+6
sdio_reset sends a CMD52 to reset the sdio card. This is highly recommended for sdio cards being reinitialized. Since we do not know if the card is being reinitialized we just send the command. SD/eMMC cards are supposed to ignore the CMD before the CMD0. Document why we are doing this. Signed-off-by: Philip Rakity <prakity@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: support DDR modeJaehoon Chung2-1/+9
This patch adds DDR mode support to dw_mmc. If we set any bit in UHS_REG bit[16:31], the card of that slot is supported for DDR mode. For example, if UHS_REG[16] is set, card number 0 is DDR mode. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: via-sdmmc: Remove set-but-unused variable.Chris Ball1-3/+0
drivers/mmc/host/via-sdmmc.c: In function ‘via_reset_pcictrl’: drivers/mmc/host/via-sdmmc.c:805:8: warning: variable ‘addrbase’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Cc: Harald Welte <HaraldWelte@viatech.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: cb710: Return err value in cb710_wait_while_busy()Chris Ball1-1/+1
Fixes: drivers/mmc/host/cb710-mmc.c: In function ‘cb710_wait_while_busy’: drivers/mmc/host/cb710-mmc.c:182:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: sdhci-pci: Remove set-but-unused variable.Chris Ball1-4/+0
drivers/mmc/host/sdhci-pci.c: In function ‘sdhci_pci_probe_slot’: drivers/mmc/host/sdhci-pci.c:913:18: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: mxs-mmc: add mmc host driver for i.MX23/28Shawn Guo3-0/+884
This adds the mmc host driver for Freescale MXS-based SoC i.MX23/28. The driver calls into mxs-dma via generic dmaengine api for both pio and data transfer. Thanks Chris Ball for the indentation patch. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci-tegra: free irq on error and removeWolfram Sang1-1/+5
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mxcmmc: use dmaengine APISascha Hauer1-77/+104
This switches the mxcmmc driver to use the dmaengine API. Unlike the old one this one is always present in the tree, even if no DMA is implemented, hence we can remove all the #ifdefs in from the driver. The driver automatically switches to PIO mode if no DMA support or no suitable channel is available. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: support 8-bit buswidthJaehoon Chung1-0/+3
This patch adds support for 8-bit buswidth. dw_mmc can use 8-bit buswidth and set to CTYPE_8BIT in card-type register. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: use dmaengine helpers, drop submit checkLinus Walleij1-13/+4
Use the new dmaengine helper functions, and drop the error check on the returned cookier from the dmaengine - we recently established that this is really not allowed to fail. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: drop dma_sglen state variableLinus Walleij1-7/+2
This variable doesn't seem to be used for anything after the other patches so just drop it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: unmap with the proper sglenLinus Walleij1-2/+2
According to the DMA-API you shall unmap the sglists with the same sglist length as passed into the mapping function, not the returned value from the mapping function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: map DMA buffers on the DMA engine deviceLinus Walleij1-4/+6
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: use dmaengine helpers, drop submit checkLinus Walleij1-16/+6
Use the new dmaengine helper functions, and drop the error check on the returned cookier from the dmaengine - we recently established that this is really not allowed to fail. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: rename and retype activity variableLinus Walleij1-9/+9
The host_sglen is now actually used to keep track of whether DMA is active or not, so rename and retype it to bool. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: unmap with the proper sglenLinus Walleij1-2/+2
According to the DMA-API you shall unmap the sglists with the same sglist length as passed into the mapping function, not the returned value from the mapping function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: map DMA buffers on the DMA engine deviceLinus Walleij1-4/+8
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: use dmaengine helper functionsLinus Walleij1-3/+3
Use the new dmaengine helpers to make the code more readable. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: conform to DMA-APILinus Walleij1-4/+3
Fixes the following: - It is perfectly legal for the dma_map_sg() to return fewer entries than were passed in. - Supply the returned numer of (possibly coalesced) entries to the device_pre_slave_sg() function. - Use the proper original sg_len when unmapping the sglist in the error path. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: map DMA sglist on the DMA engineLinus Walleij1-3/+5
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci: Add Ricoh e823 PCI IDManoj Iyer1-0/+8
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: Ensure prototypes for SD API are visible in sd.cMark Brown1-0/+1
So we know the implementation and prototypes agree with each other. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: Improve MMC_TEST config text.Will Newton1-2/+1
The test file is created under debugfs, not sysfs. Also remove the unnecessary default n. Signed-off-by: Will Newton <will.newton@imgtec.com> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: Enable low-power mode for the card clock.Will Newton1-1/+2
Setting this bit in the clock enable register will stop the clock when the card is in the IDLE state. Signed-off-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: Run card detect tasklet during slot initialisation.Will Newton1-0/+6
We need to run the card detect tasklet at the end of slot initialisation as it is possible that a card has been inserted prior to boot, so we don't see an insertion interrupt and now the card is sitting there inserted but with no power to it. Signed-off-by: Neil Jones <neil.jones@imgtec.com> Signed-off-by: Will Newton <will.newton@imgtec.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_mxc: Allow selection only for the correct platformsFabio Estevam1-1/+1
Currently MMC_MXC driver can be selected by all i.MX devices. Restrict its use only for the appropriate processors. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: Improve readability of the output of pr_debug_status()Simon Horman1-23/+27
Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_test: add tests to measure large sequential I/O performanceAdrian Hunter1-0/+100
Add two large sequential I/O performance tests: 35. Large sequential read into scattered pages 36. Large sequential write from scattered pages The tests measure transfer times for 10MiB, 100MiB, 1000MiB. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_test: add tests to measure random I/O operations per secondAdrian Hunter1-11/+128
Existing performance tests measure single or sequential I/O speed. Add two random I/O tests: 33. Random read performance by transfer size 34. Random write performance by transfer size Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_test: make performance test area size about 4MiBAdrian Hunter1-12/+13
The test area size was set to the preferred erase size but for comparison purposes it is better if it is the same size for different devices. Make it a multiple of preferred erase size that is greater than or equal to 4MiB. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: remove BROKEN_CLK_GATING quirk for wl1271Pierre Tardy1-1/+11
This sdio card supports having its sdio clock shutdown. It is also not using the SDIO IRQ, but rather uses a side gpio irq. Signed-off-by: Pierre Tardy <tardyp@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: add MMC_QUIRK_BROKEN_CLK_GATINGPierre Tardy2-4/+14
Some sdio card are not following sdio standard, and do not work when the sdio bus's clock is gated. To keep functionnality for all legacy driver, we turn this quirk on for every sdio card. Drivers needs to disable the quirk manually when someone verifies that their supported card works with clock gating. Signed-off-by: Pierre Tardy <tardyp@gmail.com> Acked-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: add per device quirk placeholderPierre Tardy4-1/+66
Some cards have quirks valid for every platforms using current platform quirk hooks leads to a lot of code and debug duplication. So we inspire a bit from what exists in PCI subsystem and do our own per vendorid/deviceid quirk. We still drop the complexity of the pci quirk system (with special section tables, and so on). That can be added later if needed. Signed-off-by: Pierre Tardy <pierre.tardy@intel.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: put the led blinking code after clock ungatingPierre Tardy1-2/+1
Since mmc clock gating can also be used as a power gating tip, it's better to put the led blinking after having ungated the clock. Signed-off-by: Pierre Tardy <pierre.tardy@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_test: Only warn about not waiting for busy if it's supportedPawel Moll1-3/+4
If the MMC host controller does not support waiting for card signaling busy state (MMC_CAP_WAIT_WHILE_BUSY cap), there is no point in prining the relevant warning message. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci-s3c: Auto CMD12 supportKyungmin Park1-0/+3
Samsung SDHCI host controller supports the Auto CMD12. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: Fix the block device read only flagMarc-André Hébert1-0/+1
While the MMC handled the card's read only flag correctly on open, it did not setup the flag in the allocated disk structure. The consequence being that probing the /sys/class/block/mmcblkX/ro attribute always reported 0. Signed-off-by: Marc-Andre Hebert <hebert.marcandre@gmail.com> Reviewed-by: Chris Ball <cjb@laptop.org> Tested-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: export eMMC4.4 enhanced area details to sysfsChuanxiao Dong1-0/+74
Enhanced area feature is a new feature defined in eMMC4.4 standard. This user data area provides higher performance/reliability, at the expense of using twice the effective media space due to the area using SLC. The MMC driver now reads out the enhanced area offset and size and adds them to the device attributes in sysfs. Enabling the enhanced area can only be done once, and should be done in manufacturing. To use this feature, bit ERASE_GRP_DEF should also be set. Documentation/ABI/testing/sysfs-devices-mmc describes the two new attributes. Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-10Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: fix CONFIG_MMC_UNSAFE_RESUME regression
2011-03-09mmc: fix CONFIG_MMC_UNSAFE_RESUME regressionOhad Ben-Cohen1-1/+1
30201e7f3 ("mmc: skip detection of nonremovable cards on rescan") allowed skipping detection of nonremovable cards on mmc_rescan(). The intention was to only skip detection of hardwired cards that cannot be removed, so make sure this is indeed the case by directly checking for (lack of) MMC_CAP_NONREMOVABLE, instead of using mmc_card_is_removable(), which is overloaded with CONFIG_MMC_UNSAFE_RESUME semantics. The user-visible symptom of the bug this patch fixes is that no "mmc: card XXXX removed" message appears in dmesg when a card is removed and CONFIG_MMC_UNSAFE_RESUME=y. Reported-and-tested-by: Dmitry Shmidt <dimitrysh@google.com> Reported-and-tested-by: Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-08Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds1-0/+3
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: davinci: cpufreq: fix section mismatch warning DaVinci: fix compilation warnings in <mach/clkdev.h> davinci: tnetv107x: fix register indexing for GPIOs numbers > 31 davinci: da8xx/omap-l1x: add platform device for davinci-pcm-audio ARM: pxa/tosa: register wm9712 codec device ARM: pxa: enable pxa-pcm-audio on pxa210/pxa25x platform ARM: pxa/colibri: don't register pxa2xx-pcmcia nodes on non-colibri platforms ARM: pxa/tosa: drop setting LED trigger name, as it's unsupported now ARM: 6762/1: Update number of VIC for S5P6442 and S5PC100 ARM: 6761/1: Update number of VIC for S5PV210 ARM: 6768/1: hw_breakpoint: ensure debug logic is powered up on v7 cores ARM: 6767/1: ptrace: fix register indexing in GETHBPREGS request ARM: 6765/1: remove obsolete comment from asm/mach/arch.h ARM: 6757/1: fix tlb.h induced linux/swap.h build failure
2011-03-08Merge branch 'for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: mmc: sdio: Allow sdio operations in other threads during sdio_add_func()
2011-03-08Merge branch 'drm-fixes' of ↵Linus Torvalds14-46/+89
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: index i shadowed in 2nd loop drm/nv50-nvc0: prevent multiple vm/bar flushes occuring simultanenously drm/nouveau: fix regression causing ttm to not be able to evict vram drm/i915: Rebind the buffer if its alignment constraints changes with tiling drm/i915: Disable GPU semaphores by default drm/i915: Do not overflow the MMADDR write FIFO Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing"
2011-03-08drm: index i shadowed in 2nd looproel1-2/+2
Index i was already used in thhe first loop Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-03-08mmc: sdio: Allow sdio operations in other threads during sdio_add_func()Dmitry Shmidt1-2/+1
This fixes a bug introduced by 807e8e40673d ("mmc: Fix sd/sdio/mmc initialization frequency retries") that prevented SDIO drivers from performing SDIO commands in their probe routines -- the above patch called mmc_claim_host() before sdio_add_func(), which causes a deadlock if an external SDIO driver calls sdio_claim_host(). Fix tested on an OLPC XO-1.75 with libertas on SDIO. Signed-off-by: Dmitry Shmidt <dimitrysh@google.com> Reviewed-and-Tested-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-08Merge remote branch 'ickle/drm-intel-fixes' into drm-fixesDave Airlie9-41/+70
* ickle/drm-intel-fixes: drm/i915: Rebind the buffer if its alignment constraints changes with tiling drm/i915: Disable GPU semaphores by default drm/i915: Do not overflow the MMADDR write FIFO Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing"
2011-03-08Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds5-37/+120
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] tape: deadlock on system work queue [S390] keyboard: integer underflow bug [S390] xpram: remove __initdata attribute from module parameters
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