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path: root/drivers/mmc/host/tmio_mmc.h
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* mmc: tmio: document CTL_STATUS handlingWolfram Sang2016-05-021-1/+2
| | | | | | | | | Now that reading CTL_STATUS is consistent, we can remove CTL_STATUS2 and document how this is handled internally. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio/sdhi: distinguish between SCLKDIVEN and ILL_FUNCWolfram Sang2016-05-021-1/+2
| | | | | | | | | This bit has a different meaning in SDHI and original TMIO. Document that and use the proper naming. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: use CTL_STATUS consistentlyWolfram Sang2016-05-021-2/+1
| | | | | | | | | To prevent confusion, use the virtual u32 CTL_STATUS in card_busy() the same way as in other parts of this driver. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: use BIT() within definesWolfram Sang2016-05-021-21/+23
| | | | | | | | | | BIT() makes it easier to match the bits to the datasheet. This is especially important here, since some variants have different names in their datasheets (like with Renesas R-Car). Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: give read32/write32 functions more descriptive namesWolfram Sang2016-05-021-3/+2
| | | | | | | | | | | | | | Looking at the backlogs, I am not the only one who missed that the above functions do not read u32 from one register, but create a virtual u32 from reading to adjacent u16 registers (which depending on 'bus_shift' can be up to 8 byte apart). Because this driver supports old hardware for which we don't have documentation, I first wrongly assumed there was a variant which had a few u32 registers. Let's give the functions more descriptive names to make it more obvious what is happening. Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: merge distributed include filesWolfram Sang2016-05-021-1/+55
| | | | | | | | | There is no reason to have a public and private header file. Merge them into a private one, so looking up symbols is less confusing. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: remove now unneeded seperate irq handlersWolfram Sang2016-05-021-3/+0
| | | | | | | | | We removed installation of separate handlers previously, so we can also remove the separate handlers. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: Add UHS-I mode supportWolfram Sang2016-05-021-0/+2
| | | | | | | | | | Based on work by Shinobu Uehara and Ben Dooks. This adds the voltage switch operation needed for all UHS-I modes, but not the tuning needed for SDR-104 which will come later. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio, sh_mobile_sdhi: Add support for variable input clock frequencyBen Hutchings2016-05-021-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently tmio_mmc assumes that the input clock frequency is fixed and only its own clock divider can be changed. This is not true in the case of sh_mobile_sdhi; we can use the clock API to change it. In tmio_mmc: - Delegate setting of f_min from tmio to the clk_enable operation (if implemented), as it can be smaller than f_max / 512 - Add an optional clk_update operation called from tmio_mmc_set_clock() that updates the input clock frequency - Rename tmio_mmc_clk_update() to tmio_mmc_clk_enable(), to avoid confusion with the clk_update operation In sh_mobile_sdhi: - Make the setting of f_max conditional; it should be set through the max-frequency property in the device tree in future - Set f_min based on the input clock's minimum frequency - Implement the clk_update operation, selecting the best input clock frequency for the bus frequency that's wanted sh_mobile_sdhi_clk_update() is loosely based on Kuninori Morimoto's work in sh_mmcif. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio, sh_mobile_sdhi: Pass tmio_mmc_host ptr to clk_{enable, disable} opsBen Hutchings2016-05-021-2/+2
| | | | | | | | | | Change the clk_enable operation to take a pointer to the struct tmio_mmc_host and have it set f_max. For consistency, also change the clk_disable operation to take a pointer to struct tmio_mmc_host. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: mmc: tmio: tmio_mmc_data has .chan_priv_?xKuninori Morimoto2015-03-051-2/+0
| | | | | | | | | | | | | | | | | | dma_request_slave_channel_compat() in tmio_mmc_dma needs .chan_priv_tx/.chan_priv_rx. But these are copied from sh_mobile_sdhi only, and sh_mobile_sdhi_info is now almost same as tmio_mmc_data except .chan_priv_?x. sh_mobile_sdhi_info can be replaced to tmio_mmc_data, but it is used from ${LINUX}/arch/arm/mach-shmobile, ${LINUX}/arch/sh. So, this patch adds .chan_priv_?x into tmio_mmc_data as 1st step, and sh_mobile_sdhi driver has dummy operation for now. It will be replaced/removed together with platform data replace. 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> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* mmc: tmio_mmc: remove slave_id settings for DMAEngineKuninori Morimoto2015-02-231-2/+0
| | | | | | | | | | Current tmio_mmc 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: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* mmc: tmio: enable SoC specific DMA buswidth settingsKuninori Morimoto2015-01-201-0/+2
| | | | | | | | | | Renesas SDHI which is based on TMIO driver has 2 type SoC. 1st one is used as SH-Mobile series, and 2nd is R-Car series. R-Car series SoC has DMA buswidth setting register which enables 32bit access. This patch adds .dma_buswidth and enables it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: add .enable_dma on tmio_mmc_dmaKuninori Morimoto2015-01-201-0/+2
| | | | | | | | Some controllers need DMA special register/setting. This patch adds new .enable_dma callback for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_data has .dma_rx_offsetKuninori Morimoto2015-01-201-1/+0
| | | | | | | | | Current .dma_rx_offset is implemented under tmio_mmc_dma. It goes to tmio_mmc_data by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_data has .alignment_shiftKuninori Morimoto2015-01-201-1/+0
| | | | | | | | | Current .alignment_shift is implemented under tmio_mmc_dma. It goes to tmio_mmc_data by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .bus_shiftKuninori Morimoto2015-01-201-8/+9
| | | | | | | | | Current .bus_shift is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .multi_io_quirkKuninori Morimoto2015-01-201-0/+2
| | | | | | | | | Current .multi_io_quirk is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .clk_disableKuninori Morimoto2015-01-201-0/+1
| | | | | | | | | Current .clk_disable is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .clk_enableKuninori Morimoto2015-01-201-0/+1
| | | | | | | | | Current .clk_enable is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .write16_hookKuninori Morimoto2015-01-201-1/+3
| | | | | | | | | Current .write16_hook is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: tmio_mmc_host has .dmaKuninori Morimoto2015-01-201-0/+11
| | | | | | | | | Current .dma is implemented under tmio_mmc_data. It goes to tmio_mmc_host by this patch. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: add tmio_mmc_host_alloc/free()Kuninori Morimoto2015-01-201-2/+3
| | | | | | | | | | | | | | | | Current tmio_mmc driver is using tmio_mmc_data for driver/platform specific data/callback, and it is needed for tmio_mmc_host_probe() function. Because of this style, include/linux/mfd/tmio.h header has tmio driver/framework specific data which is not needed from platform. This patch adds new tmio_mmc_host_alloc/free() as cleanup preparation. tmio driver specific data/callback will be implemented in tmio_mmc_host, and platform specific data/callback will be implemented in tmio_mmc_data in this cleanup. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
* mmc: tmio: Remove library functions for system PMUlf Hansson2014-09-091-5/+0
| | | | | | | These library functions aren't used and nor needed, let's remove them. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
* mmc: tmio: Make runtime PM callbacks available for CONFIG_PMUlf Hansson2014-09-091-1/+1
| | | | | | | | To give the option for tmio hosts to use the runtime PM callbacks for CONFIG_PM_SLEEP as well as CONFIG_PM_RUNTIME, move them to CONFIG_PM. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
* mmc: tmio: Handle clock gating from runtime PM functionsUlf Hansson2014-09-091-1/+2
| | | | | | | | Add clock gating control as a part of the tmio library functions for runtime PM. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
* mmc: tmio: Restructure ->set_ios() and adapt ->probe() to itUlf Hansson2014-09-091-20/+0
| | | | | | | | | | | | | | | | | An internal power state machine were beeing used to keep ->probe() and ->set_ios() in sync. Especially for handling specific scenarios while using CONFIG_MMC_CLKGATE. Moreover dependency to CONFIG_MMC_CLKGATE existed to handle runtime PM properly, which we moves away from here. By removing the state machine and instead make ->set_ios() rely on the information provided through the function's in-parameters, the code becomes significantly simplier. Additonally as a part of this rework we prepares for making the runtime PM callbacks responsible of clock gating. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
* mmc: tmio: Keep host active while SDIO IRQ is enabledUlf Hansson2014-09-091-0/+1
| | | | | | | | The host must be kept active to be able to serve SDIO IRQs, thus let's prevent it from going inactive while SDIO IRQ is enabled. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
* mmc: tmio: Adapt to proper PM configs for exported functionsUlf Hansson2014-02-131-4/+3
| | | | | | | | | Since the users of the exported PM functions are now using the modern PM ops macros, we can convert to the proper corresponding PM configs. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <chris@printf.net>
* mmc: tmio: bus_shift become tmio_mmc_data memberKuninori Morimoto2014-01-131-9/+8
| | | | | | | | | | .bus_shift is used to 16/32bit register access offset calculation on tmio driver. tmio_mmc_xxx is used from Toshiba/Renesas now, but this bus_shift value depends on HW IP. This patch moves .bus_shift to tmio_mmc_data member and sets it on each driver. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: fix unbalanced power-on calls with clock-gating enabledGuennadi Liakhovetski2013-06-061-2/+18
| | | | | | | | | | | | | With MMC clock gating enabled the MMC core currently calls MMC host driver's .set_ios() method with .power_mode == MMC_POWER_ON and the clock value set either to 0 or to the target rate. The tmio MMC driver then wrongly translates the latter calls to card slot power-on requests, even when the slot already was on. This patch fixes the driver to avoid needlessly incrementing power-supplying regulator's use count. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: postpone controller reset during resumeGuennadi Liakhovetski2013-06-061-0/+1
| | | | | | | | | | | When resuming, the tmio_mmc_host_resume() function is run when the controller might still be powered down. Issuing a reset command to it at that time has no effect. This patch postpones resetting the controller until the first powering-up .set_ios() call. Reported-by: Nguyen Viet Dung <nv-dung@jinso.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio_mmc: remove unused sdio_irq_enabled flagGuennadi Liakhovetski2012-03-271-1/+0
| | | | | | | | | The sdio_irq_enabled member of struct tmio_mmc_host is a left-over from the previously removed SDIO IRQ workaround. It is no longer needed and can now be removed too. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio_mmc: power status flag doesn't have to be exposed in platform dataGuennadi Liakhovetski2012-03-271-0/+3
| | | | | | | | | The controller power status flag does not have to be accessed from the hot-plug detection code any more, it can now be removed from the platform data and put in the controller private struct. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio_mmc: support the generic MMC GPIO card hotplug helperGuennadi Liakhovetski2012-03-271-4/+0
| | | | | | | | If the platform specifies the TMIO_MMC_HAS_COLD_CD flag, use the generic MMC GPIO card hotplug helper. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: calculate the native hotplug condition only onceGuennadi Liakhovetski2012-03-271-0/+1
| | | | | | | | | The condition, whether we have to use the native TMIO card hotplug detection interrupt, is rather complex, it is better to only calculate it once and store in the private data. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio_mmc: fix card eject during IO with DMAGuennadi Liakhovetski2012-02-131-1/+6
| | | | | | | | | When DMA is in use and the card is ejected during IO, DMA transfers have to be terminated, otherwise the dmaengine driver fails to operate properly, when the card is re-inserted. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: remove the second argument of k[un]map_atomic()Cong Wang2012-01-111-2/+2
| | | | | | Signed-off-by: Cong Wang <amwang@redhat.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: Provide separate interrupt handlersSimon Horman2011-10-261-0/+3
| | | | | | | | | | | | Provide separate interrupt handlers which may be used by platforms where SDHI has three interrupt sources. This patch also removes the commented-out handling of CRC and other errors. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: Cache interrupt masksSimon Horman2011-10-261-0/+4
| | | | | | | | | | This avoids the need to look up the masks each time an interrupt is handled. As suggested by Guennadi. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
* MMC / TMIO: Fix build issue related to struct scatterlistRafael J. Wysocki2011-07-261-0/+1
| | | | | | | | Fix build issue caused by undefined struct scatterlist in drivers/mmc/host/tmio_mmc.c. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mmc: tmio: fix a deadlockGuennadi Liakhovetski2011-07-211-0/+5
| | | | | | | | | Currently the tmio-mmc driver contains a recursive runtime PM method invocation, which leads to a deadlock on a mutex. Avoid it by taking care not to request DMA too early. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: maximize power savingGuennadi Liakhovetski2011-07-211-0/+2
| | | | | | | | This patch uses runtime PM to allow the system to power down the MMC controller, when the MMC closk is switched off. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: fix recursive spinlock, don't schedule with interrupts disabledGuennadi Liakhovetski2011-07-211-1/+5
| | | | | | | | | | Calling mmc_request_done() under a spinlock with interrupts disabled leads to a recursive spin-lock on request retry path and to scheduling in atomic context. This patch fixes both these problems by moving mmc_request_done() to the scheduler workqueue. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: sdhi: Add write16_hookSimon Horman2011-07-201-0/+5
| | | | | | | | | | | | Some controllers require waiting for the bus to become idle before writing to some registers. I have implemented this by adding a hook to sd_ctrl_write16() and implementing a hook for SDHI which waits for the bus to become idle. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: Share register access functionsSimon Horman2011-07-201-0/+35
| | | | | | | | | | | | | | Move register access functions into a shared header. Use sd_ctrl_write16 in tmio_mmc_dma.c:tmio_mmc_enable_dma(). Other than avoiding (trivial) open-coding, the motivation for this is to allow platform-hooks in access functions to be applied across all applicable accesses. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Magnus Damm <magnus.damm@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio: runtime suspend the controller, where possibleGuennadi Liakhovetski2011-05-241-0/+3
| | | | | | | | | | | The TMIO MMC controller cannot be powered off to save power, when no card is plugged in, because then it will not be able to detect a new card-insertion event. On some implementations, however, it is possible to switch to using another source to detect card insertion. This patch adds support for such implementations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: tmio/sdhi: break out interrupt request/freeMagnus Damm2011-05-241-1/+1
| | | | | | | | | | | | | Move request_irq()/free_irq() from the shared code in tmio_mmc.c into the SDHI/tmio specific portion in sh_mobile_sdhi.c and tmio_mmc_pio.c. This is ground work to allow us to adjust the SDHI code with IRQ flags and number of interupt sources. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: protect the tmio_mmc driver against a theoretical raceGuennadi Liakhovetski2011-05-241-0/+1
| | | | | | | | | | The MMC subsystem does not guarantee, that host driver .request() and .set_ios() callbacks are serialised. Such concurrent calls, however, do not have to be meaningfully supported, drivers just have to make sure to avoid any severe problems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: Add runtime and system-wide PM to the TMIO MMC driverGuennadi Liakhovetski2011-05-241-0/+10
| | | | | | | | | | | Add runtime and system-wide power management to the TMIO MMC driver in PIO and DMA modes, allowing it to properly save and restore its state during system suspend. Runtime PM is very crude ATM, because the controller has to be powered on all the time to detect card hotplug events. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
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