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path: root/drivers/mmc/host/sh_mmcif.c
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2015-08-27mmc: sh_mmcif: Fix suspend processKoji Matsuoka
The clock should be enable when SDHI registers are accessed. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sh_mmcif: calculate best clock with parent clockKuninori Morimoto
MMCIF IP on R-Car series has parent clock which can be set several rate, and it was not implemented on old SH-Mobile series (= SH-Mobile series parent clock was fixed rate) R-Car series MMCIF can use more high speed access if it setups parent clock. This patch adds parent clock setup method. It will be used if DT has "max-frequency", and then, this driver assumes it is booted on R-Car Gen2 or later SoC. Because SH-Mobile series (which doesn't boot from DT) and R-Car series (which boots from DT) have different divider. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> [Ulf: Silence compiler warning]
2015-06-01mmc: sh_mmcif: use sh_mmcif_xxx prefix for all functionsKuninori Morimoto
Current sh_mmcif driver is using sh_mmcif_xxx and mmcif_xxx for functions. This patch used sh_mmcif_xxx for all functions. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-06-01mmc: sh_mmcif: add sh_mmcif_host_to_dev() macro and use it.Kuninori Morimoto
Current sh_mmcif driver is directly using &host->pd->dev in all place. It is not big problem, but it is unreadable, and it can be cause of future bug. This patch adds new sh_mmcif_host_to_dev() and use it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-25mmc: sh_mmcif: separate sh_mmcif_clk_update() into setup and prepareKuninori Morimoto
Current sh_mmcif_clk_update() is called from probe() and set_ios(), but, the purpose of later one is just clk_prepare_enable(). No need to setup mmc->f_max/f_min in many times. This patch separe sh_mmcif_clk_update() into clk_prepare_enable() and mmc->f_max/f_min setup. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-25mmc: sh_mmcif: remove unnecessary int clk from struct sh_mmcif_hostKuninori Morimoto
struct sh_mmcif_host has 1) int clk, 2) struct clock *hclk, and host->clk = clk_get_rate(host->hclk). This int clk is not necessary. Let's remove it. And, current hclk is confusable naming. Let's rename it to clk. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-25mmc: sh_mmcif: cleanup to use dev instead of &pdev->devKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-25mmc: sh_mmcif: move mmcif_of_match to upsideKuninori Morimoto
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-05-06mmc: sh_mmcif: Fix timeout value for command requestTakeshi Kihara
f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout") changed the timeout value from 1000 jiffies to 1s. In the case where HZ is 1000 the values are the same. However, for smaller HZ values the timeout is now smaller, 1s instead of 10s in the case of HZ=100. Since the timeout occurs in spite of a normal data transfer a timeout of 10s seems more appropriate. This restores the previous timeout in the case where HZ=100 and results in an increase over the previous timeout for larger values of HZ. Fixes: f9fd54f22e ("mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeout") Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> [horms: rewrote changelog to refer to HZ] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-04-24Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dmaengine updates from Vinod Koul: - new drivers for: - Ingenic JZ4780 controller - APM X-Gene controller - Freescale RaidEngine device - Renesas USB Controller - remove device_alloc_chan_resources dummy handlers - sh driver cleanups for peri peri and related emmc and asoc patches as well - fixes and enhancements spread over the drivers * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits) dmaengine: dw: don't prompt for DW_DMAC_CORE dmaengine: shdmac: avoid unused variable warnings dmaengine: fix platform_no_drv_owner.cocci warnings dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe() dmaengine: at_xdmac: unlock spin lock before return dmaengine: xgene: devm_ioremap() returns NULL on error dmaengine: xgene: buffer overflow in xgene_dma_init_channels() dmaengine: usb-dmac: Fix dereferencing freed memory 'desc' dmaengine: sa11x0: report slave capabilities to upper layers dmaengine: vdma: Fix compilation warnings dmaengine: fsl_raid: statify fsl_re_chan_probe dmaengine: Driver support for FSL RaidEngine device. dmaengine: xgene_dma_init_ring_mngr() can be static Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes dmaengine: Add support for APM X-Gene SoC DMA engine driver dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver dmaengine: renesas,usb-dmac: Add device tree bindings documentation dmaengine: edma: fixed wrongly initialized data parameter to the edma callback dmaengine: ste_dma40: fix implicit conversion ...
2015-03-23mmc: sh_mmcif: Add exclusion between cmd and interruptKouichi Tomita
A command end interrupt should not be processed between command issue and setting of wait_for flag. It expects already the flag to be set. Therefore the exclusive control was added. Signed-off-by: Kouichi Tomita <kouichi.tomita.yn@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-03-23mmc: sh_mmcif: Move dev_err() of mmcif_timeout_work()Kouichi Tomita
If interruption of command already occurred, mrq pointer in dev_err() would refer to NULL, because the host-state is changed to STATE_IDLE and mrq pointer is changed to NULL by interrupt handler. Therefore dev_err is moved after checking STATE_IDLE. Signed-off-by: Kouichi Tomita <kouichi.tomita.yn@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2015-02-23mmc: sh_mmcif: remove slave_id settings for DMAEngineKuninori Morimoto
Current sh_mmcif sets dma_slave_config :: slave_id field for DMAEngine, but it is no longer needed. Let's remove it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-09-09mmc: remove .owner field for drivers using module_platform_driverPeter Griffin
This patch removes the superflous .owner field for drivers which use the module_platform_driver API, as this is overriden in platform_driver_register anyway. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-26mmc: sh_mmcif: Configure DMA slave bus widthLaurent Pinchart
The data register is 4 bytes wide, hardcode the DMA transfer size to 4 bytes in both directions. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-26mmc: sh_mmcif: Fix DMA slave address configurationLaurent Pinchart
Commit e5a233cb647d749de2f188477c9a54b94d90477f ("mmc: sh_mmcif: Factorize DMA channel request and configuration code") incorrectly set the destination address for both slave channels instead of setting the source address for the receive channel. Fix that. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: final error path cleanupBen Dooks
Remove the error path items that are no longer needed. The mmc card-detect code cleans up after itself (and registers with devm) and the host error is the same as the clock disable. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: no need to call pm_runtime_suspend on errorBen Dooks
The pm_runtime call should implicitly disable the device once the probe is over if there is no explicit reference gained. There is no need to call pm_runtime_suspend() before the pm_runtime_disable() call. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: use devm_ for irq managementBen Dooks
Use devm_request_threaded_irq() for the host interrupt handlers so we do not have to worry about freeing them on exit or error. Tidies up the exit path code for the driver. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: use devm_ for clock managementBen Dooks
Use the devm_clk_get() code to get the clock and allow it to be freed automatically on release. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: use devm_ for ioremapBen Dooks
Start tidying the probe/release code by using devm_ioremap_resource() to map the IO registers. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-07-09mmc: sh-mmcif: update to print version and bus clock rate on probeBen Dooks
Change the initial print to show chip version and the bus rate it is working at instead of the driver version. This is more useful information as we already know which driver version from the kernel it is in. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-04-20mmc: sh_mmcif: clarify DDR timing mode between SD-UHS and eMMCSeungwon Jeon
Replaced UHS_DDR50 with MMC_DDR52. CC: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
2014-01-13mmc: sh_mmcif: Fix compilation warning on 64-bit platformsLaurent Pinchart
Casting an integer to a void * generates a "cast to pointer from integer of different size" warning. Cast the integer to an unsigned long first to fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2014-01-13mmc: sh_mmcif: Factorize DMA channel request and configuration codeLaurent Pinchart
The channel request and configuration code is duplicated for the rx and tx channels. Create a function that requests a single channel and call it twice instead. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-11-08mmc: sh_mmcif: Convert to clk_prepare|unprepareUlf Hansson
Previously only clk_enable|disable were being used. Adapt properly to the clock API, by also using clk_prepare|unprepare. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-11-08mmc: sh_mmcif: Convert to PM macros when defining dev_pm_opsUlf Hansson
Use SET_SYSTEM_SLEEP_PM_OPS to simplify code. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: sh_mmcif: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-25mmc: sh_mmcif: revision-specific CLK_CTRL2 handlingGuennadi Liakhovetski
Some newer MMCIF IP revisions contain a CE_CLK_CTRL2 register, that has to be set for proper operation. Support for this feature is added in a way to preserve the current behaviour by default, i.e. when it is not enabled in platform data. Patch is based on work by Nobuyuki HIRAI. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-25mmc: sh_mmcif: revision-specific Command Completion Signal handlingGuennadi Liakhovetski
Some earlier MMCIF IP revisions contained Command Completion Signal support, which has been dropped again in modern versions. Sopport for this feature is added in a way to preserve the current behaviour by default, i.e. when it is not enabled in platform data. Patch is based on work by Nobuyuki HIRAI. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-25mmc: sh_mmcif: add support for Device Tree DMA bindingsGuennadi Liakhovetski
To use DMA in the Device Tree case the driver has to be modified to use suitable API to obtain DMA channels. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-25mmc: sh_mmcif: move header include from header into .cGuennadi Liakhovetski
sh_dma.h isn't needed in sh_mmcif.h, move it into sh_mmcif.c. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-24mmc: sh_mmcif: Remove .set_pwr() callback from platform dataLaurent Pinchart
The .set_pwr() callback isn't used anymore as all platforms register GPIO-controlled regulators. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-08-24mmc: slot-gpio: Add debouncing capability to mmc_gpio_request_cd()Laurent Pinchart
Add a debounce parameter to the mmc_gpio_request_cd() function that enables GPIO debouncing when set to a non-zero value. This can be used by MMC host drivers to enable debouncing on the card detect signal. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-06-27mmc: sh_mmcif: handle mmc_of_parse() errors during probeSimon Baatz
Signed-off-by: Simon Baatz <gmbnomis@gmail.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-06-06mmc: sh_mmcif: don't clear masked interruptsGuennadi Liakhovetski
Masking events on MMCIF means that an occurrence of the masked event won't raise an interrupt, but the event bit will still be set in the interrupt status register. If simultaneously a different event occurs which was enabled, both flags will be set. However, only the unmasked event bit should be cleared in the status register in such a case. Clearing also the masked bit can lead to lost interrupts, which indeed can be observed on the armadillo800eva r8a7740 board with an eMMC chip. The problem has been introduced by the recent "mmc: sh_mmcif: simplify IRQ processing" patch. Fix the problem by only clearing enabled interrupts. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Tested-by: Nguyen Viet Dung <nv-dung@jinso.co.jp> Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-05-26mmc: remove unnecessary platform_set_drvdata()Jingoo Han
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Sonic Zhang <sonic.zhang@analog.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-24mmc: sh_mmcif: use mmc_of_parse() to parse standard MMC DT bindingsGuennadi Liakhovetski
Use mmc_of_parse() to get interface capability flags and used GPIOs from device-tree bindings. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: simplify IRQ processingGuennadi Liakhovetski
The classical way to process IRQs is read out the status, ack all triggered IRQs, possibly mask them, then process them. Follow this simple procesure instead of the current complex custom algorithm. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: report all errorsTeppei Kamijou
Make error reporting in the driver more verbose. This patch is based on an earlier work by Teppei Kamijou, but we try to not add any new error messages to the log in the normal case to avoid confusing the user, and also add a few more dev_dbg() calls. Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> [g.liakhovetski@gmx.de: avoid producing new errors in normal case] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: fix I/O errorsGuennadi Liakhovetski
The INT_BUFWEN IRQ often arrives with other bits set too. If they are not cleared, an additional IRQ can be triggered, sometimes also after the MMC request has already been completed. This leads to block I/O errors. Earlier Teppei Kamijou also observed these additional interrupts and proposed to explicitly wait for them. This patch chooses an alternative approach of clearing all active bits immediately, when processing the main interrupt. Reported-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: reset DMA completion immediately before starting DMAGuennadi Liakhovetski
DMA completion can be signalled from the DMA callback and from the error handler. If both are called, the completion struct can enter an inconsistent state. To prevent this move completion initialisation immediately before activating DMA. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: reset error code for any opcodeGuennadi Liakhovetski
If a command execution has produced an error, it has to be reset as a part of the error handling. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: fix a race, causing an Oops on SMPGuennadi Liakhovetski
Oopses have been observed on SMP in the sh-mmcif IRQ thread, when the two IRQ threads run simultaneously on two CPUs. Also take care to guard the timeout work and the DMA completion callback from possible NULL-pointer dereferences and races. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: (cosmetic) simplify boolean return blocksGuennadi Liakhovetski
Use "return condition" instead of "if (condition) return true; return false" in functions, returning bool. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: Terminate DMA transactions when detecting timeout or errorTeppei Kamijou
If a DMA transaction fails, terminate all outstanding DMA transfers and unmap buffers. Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> [g.liakhovetski@gmx.de: forward-port, add dma_unmap_sg() in error cases] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: fix missing and consolidate IO completion timeoutsGuennadi Liakhovetski
Read block and write block operations are currently missing completion timeouts. Add missing timeouts and consolidate them at one location. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: Avoid unnecessary mmc_delay() at mmc_card_sleepawake()Teppei Kamijou
SH/R-Mobile MMCIF host controller can wait while the card signals busy. Set MMC_CAP_WAIT_WHILE_BUSY to inform an upper layer (core/mmc_ops.c) not to insert unnecessary mmc_delay(). Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: Use msecs_to_jiffies() for host->timeoutTeppei Kamijou
Timeout period should be properly normalized using msecs_to_jiffies(). Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-02-11mmc: sh_mmcif: Add support for eMMC Dual Data RateTeppei Kamijou
Some MMCIF implementations support the Dual Data Rate. With this patch, platforms can set the MMC_CAP_UHS_DDR50 capability flag in MMCIF platform data. This will let the MMC core to actually use the DDR mode. Signed-off-by: Teppei Kamijou <teppei.kamijou.yb@renesas.com> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
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