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* tmio_mmc: add bus_shift supportPhilipp Zabel2009-06-132-81/+125
| | | | | | | | | | Some ASIC3 devices in the wild are connected with the address bus shifted by one line, so that its 16-bit registers appear 32-bit aligned in host memory space. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* MFD,mmc: tmio_mmc: make HCLK configurablePhilipp Zabel2009-06-131-13/+11
| | | | | | | | | | | The Toshiba parts all have a 24 MHz HCLK, but HTC ASIC3 has a 24.576 MHz HCLK and AMD Imageon w228x's HCLK is 80 MHz. With this patch, the MFD driver provides the HCLK frequency to tmio_mmc via mfd_cell->driver_data. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Ian Molton <ian@mnementh.co.uk> Acked-by: Samuel Ortiz <sameo@openedhand.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc_spi: don't use EINVAL for possible transmission errorsWolfgang Muees2009-06-131-5/+6
| | | | | | | | | | | | | This patch changes the reported error code for the responses to a command from EINVAL to EFAULT/ENOSYS, as EINVAL is reserved for non-recoverable host errors, and the responses from the SD/MMC card may be because of recoverable transmission errors in the command or in the response. Response codes in SPI mode are NOT protected by a checksum, so don't trust them. Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de> Acked-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* cb710: more cleanup for the DEBUG case.Michał Mirosław2009-06-131-0/+3
| | | | | Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* sdhci: platform driver for SDHCIRichard Röjfors2009-06-133-0/+180
| | | | | | | Added a platform driver which uses the SDHCI core. Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mxcmmc: remove frequency workaroundPierre Ossman2009-06-131-2/+0
| | | | | | | The MMC core has now been fixed to not send silly frequencies to the drivers which means we can remove this workaround. Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* cb710: fix printk format stringPierre Ossman2009-06-131-1/+1
| | | | Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc: Driver for CB710/720 memory card reader (MMC part)Michał Mirosław2009-06-134-0/+922
| | | | | | | | | The code is divided in two parts. There is a virtual 'bus' driver that handles PCI device and registers three new devices one per card reader type. The other driver handles SD/MMC part of the reader. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* pxamci: add regulator support.Daniel Ribeiro2009-06-131-5/+41
| | | | | | | | | | | Changes pxamci.c to use the regulator subsystem. Uses the regulator case CONFIG_REGULATOR is defined and a matching is regulator is provided, or falls back to pdata->setpower otherwise. A warning is displayed case both a valid regulator and pdata is set, and the regulator is used. Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* sdhci: avoid changing voltage needlesslyPierre Ossman2009-06-132-26/+29
| | | | | | | | Because of granularity issues, sometimes we told the hardware to change to the voltage we were already at. Rework the logic so this doesn't happen. Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc/omap: make mmci-omap using platform_driver_probeUwe Kleine-König2009-06-131-2/+1
| | | | | | | | | | | | | | | | A pointer to mmc_omap_probe which lives in .init.text is passed to the core via platform_driver_register and so the kernel might oops if probe is called after the init code is discarded. As requested by David Brownell platform_driver_probe is used instead of moving the probe function to .devinit.text. This saves some memory, but might have the downside that a device being registered after the call to mmc_omap_init but before the init sections are discarded will not be bound anymore to the driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc_spi: speedup for slow cards, less wear-outWolfgang Muees2009-06-131-0/+12
| | | | | | | | | Speedup for slow cards by transfering more data at once. This patch also reduces the amount of wear-out of the flash blocks because fewer partial blocks are written. Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* sdhci-of: Fix the wrong accessor to HOSTVER registerDave Liu2009-06-031-1/+7
| | | | | | | | | | | Freescale eSDHC controller has the special order for the HOST version register. that is not same as the other's registers. The address of HOSTVER in spec is 0xFE, and we need use the in_be16(0xFE) to access it, not in_be16(0xFC). Signed-off-by: Dave Liu <daveliu@freescale.com> Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mvsdio: fix config failure with some high speed SDHC cardsNicolas Pitre2009-06-031-0/+25
| | | | | | | | | | | | | | | | | | | Especially with Sandisk SDHC cards, the second SWITCH command was failing with a timeout and the card was not recognized at all. However if the system was busy, or debugging was enabled, or a udelay(100) was inserted before the second SWITCH command in the core code, then the timing was so that the card started to work. With some unusual block sizes, the data FIFO status doesn't indicate a "empty" state right away when the data transfer is done. Queuing another data transfer in that condition results in a transfer timeout. The empty FIFO bit eventually get set by itself in less than 50 usecs when it is not set right away. So let's just poll for that bit before configuring the controller with a new data transfer. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mvsdio: ignore high speed timing requests from the coreNicolas Pitre2009-06-031-0/+9
| | | | | | | | | | | | | | | | | Empirical evidences show that this is causing far more problems than it solves when this mode is enabled in the host hardware. Amongst those cards that are known to be non functional when this bit is set are: A-Data "Speedy" 2GB SD card Kodak 512MB SD card Ativa 1GB MicroSD card Marvell 8688 (WIFI/Bluetooth) SDIO card Since those cards do work on other host controllers which do honnor the hs timing, the issue must be with this particular host hardware. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc/omap: Use disable_irq_nosync() from within irq handlers.Ben Nizette2009-06-031-1/+1
| | | | | | | | | | | | disable_irq() should wait for all running handlers to complete before returning. As such, if it's used to disable an interrupt from that interrupt's handler it will deadlock. This replaces the dangerous instances with the _nosync() variant which doesn't have this problem. Signed-off-by: Ben Nizette <bn@niasdigital.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* sdhci-of: Add fsl,esdhc as a valid compatible to bind againstKumar Gala2009-06-031-0/+1
| | | | | | | | We plan to use fsl,esdhc going forward as the base compatible so update the driver to bind against it. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mvsdio: allow automatic loading when modularNicolas Pitre2009-06-031-0/+1
| | | | | | Signed-off-by: Nicolas Pitre <nico@marvell.com> Tested-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mxcmmc: Fix missing return value checking in DMA setup code.Martin Fuzzey2009-06-031-10/+26
| | | | Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
* mxcmmc : Reset the SDHC hardware if software timeout occurs.Martin Fuzzey2009-06-031-1/+6
| | | | | | | When a software timeout occurs in polling mode hardware was left in an indeterminate state causing subsequent operations to block. Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
* omap_hsmmc: Trivial fix for a typo in commentAnand Gadiyar2009-06-031-1/+1
| | | | | Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mxcmmc: decrease minimum frequency to make MMC cards workSascha Hauer2009-06-031-1/+3
| | | | | | | This is a temporary workaround until the MMC stack can be fixed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* [ARM] 5519/1: amba probe: pass "struct amba_id *" instead of void *Alessandro Rubini2009-05-201-1/+1
| | | | | | | | | | | | The second argument of the probe method points to the amba_id structure, so it's better passed with the correct type. None of the current in-tree drivers uses the pointer, so they have only been checked for a clean compile. Change suggested by Russell King. Signed-off-by: Alessandro Rubini <rubini@unipv.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-05-054-11/+12
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: mvsdio: fix CONFIG_PM=y build mmci: fix crash with debug enabled sdhci: catch ADMA errors mmc: increase power up delay sdhci-pci: bad error handling in probe function mmc_block: be prepared for oversized requests
| * mvsdio: fix CONFIG_PM=y buildRabin Vincent2009-05-031-6/+5
| | | | | | | | | | | | | | | | | | Fix usage of obsolete parameters and functions in the driver's PM callbacks. Signed-off-by: Rabin Vincent <rabin@rab.in> Acked-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
| * mmci: fix crash with debug enabledRabin Vincent2009-05-031-1/+1
| | | | | | | | | | | | | | | | If MMC debugging is enabled, the mmci driver oopses because the DBG macro uses host->mmc before it is set. Set it earlier. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
| * sdhci: catch ADMA errorsPierre Ossman2009-05-031-1/+1
| | | | | | | | | | | | We forgot to add the ADMA error bit to the list of data interrupts. Signed-off-by: Pierre Ossman <pierre@ossman.eu>
| * sdhci-pci: bad error handling in probe functionDan Carpenter2009-05-031-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | The goto unmap is too early, we haven't allocated host or done the request_region(). Found by smatch (http://repo.or.cz/w/smatch.git). [ Second error path fix by Pierre Ossman ] Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* | ARM: OMAP: MMC: Remove unused power_pinLadislav Michl2009-04-231-2/+0
|/ | | | | | | Remove unused power_pin Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
* mmc_spi: support for non-byte-aligned cardsWolfgang Muees2009-04-081-38/+112
| | | | | | | | | A very large subset of SD cards in the market send their responses and data non-byte-aligned. So add logic to the mmc spi driver to handle this mess. Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* omap_hsmmc: Do not expect cmd/data to be non-null when CC/TC occursJarkko Lavinen2009-04-081-1/+1
| | | | | | | | | | | With spurious interrupt cmd can be null even when we have CC set in irq status. Fixes: NB#106295 - prevent potential kernel crash in the MMC driver Signed-off-by: Jarkko Lavinen <jarkko.lavinen@nokia.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc: Fix compile for omap_hsmmc.cTony Lindgren2009-04-081-1/+0
| | | | | | | | | | | | This fixes the issue noted by Russell King: drivers/mmc/host/omap_hsmmc.c: In function 'mmc_omap_xfer_done': drivers/mmc/host/omap_hsmmc.c:301: error: implicit declaration of function 'mmc_omap_fclk_lazy_disable' This got broken by 4a694dc915c9a223044ce21fc0d99e63facd1d64. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* mmc_spi: convert timeout handling to jiffies and avoid busy waitingWolfgang Muees2009-04-081-17/+21
| | | | | | | | | | SD/MMC card timeouts can be very high. So avoid busy-waiting, using the scheduler. Calculate all timeouts in jiffies units, because this will give us the correct sign when to involve the scheduler. Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* omap_hsmmc: Flush posted write to IRQKevin Hilman2009-04-081-0/+4
| | | | | | | | | | | | | | | Spurious IRQs seen on MMC after 2.6.29. Flush posted write in IRQ handler. The interrupt line is released by clearing the error status bits in the MMCHS_STAT register, which must occur before the interrupt handler returns to avoid unwanted irqs. Hence the need to flush the posted write. Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Tony Lindgen <tony@atomide.com> Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* New mail address for Pierre OssmanPierre Ossman2009-04-083-3/+3
| | | | Signed-off-by: Pierre Ossman <pierre@ossman.eu>
* imxmmc: move RSSR BLRPaulius Zaleckas2009-04-081-7/+3
| | | | | | | | | | | DMA request source (RSSR) needs to be set only once (in probe). DMA burst length (BLR) need to be set only in set_ios() This cleans up imxmci_setup_data() and should make it a little bit faster :) Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* imxmmc: init-exit reworkPaulius Zaleckas2009-04-081-5/+4
| | | | | | | | | Add __init __exit for appropriate probe and remove functions. Conver to platform_driver_probe() Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)Yang Hongyang2009-04-071-1/+1
| | | | | | | | Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-04-0512-271/+1979
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (42 commits) atmel-mci: fix sdc_reg typo tmio_mmc: add maintainer mmc: Add OpenFirmware bindings for SDHCI driver sdhci: Add quirk for forcing maximum block size to 2048 bytes sdhci: Add quirk for controllers that need IRQ re-init after reset sdhci: Add quirk for controllers that need small delays for PIO sdhci: Add set_clock callback and a quirk for nonstandard clocks sdhci: Add get_{max,timeout}_clock callbacks sdhci: Add support for hosts reporting inverted write-protect state sdhci: Add support for card-detection polling sdhci: Enable only relevant (DMA/PIO) interrupts during transfers sdhci: Split card-detection IRQs management from sdhci_init() sdhci: Add support for bus-specific IO memory accessors mmc_spi: adjust for delayed data token response omap_hsmmc: Wait for SDBP omap_hsmmc: Fix MMC3 dma omap_hsmmc: Disable SDBP at suspend omap_hsmmc: Do not prefix slot name omap_hsmmc: Allow cover switch to cause rescan omap_hsmmc: Add 8-bit bus width mode support ...
| * atmel-mci: fix sdc_reg typoHans-Christian Egtvedt2009-03-241-1/+1
| | | | | | | | | | | | | | | | | | This fixes a bug when setting the sdc_reg for 4-bit bus width transactions. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: Add OpenFirmware bindings for SDHCI driverAnton Vorontsov2009-03-243-0/+321
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new driver: sdhci-of. The driver is similar to the sdhci-pci, it contains common probe code, and controller-specific ops and quirks. So far there are only Freescale eSDHC ops and quirks. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add quirk for forcing maximum block size to 2048 bytesAnton Vorontsov2009-03-242-7/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | FSL eSDHC controllers can support maximum block size up to 4096 bytes, the MBL (Maximum Block Length) field in the capabilities register extended by one bit, and is set to 0x3. But the SDHCI core doesn't support blocks of 4096 bytes, and thus forces blksz to the lowest value -- 512 bytes. With this patch we can pin up the blksz to the maximum supported block size, i.e. 2048 bytes. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add quirk for controllers that need IRQ re-init after resetAnton Vorontsov2009-03-242-0/+9
| | | | | | | | | | | | | | | | FSL eSDHC controllers losing signal/interrupt enable states after reset, so we should re-enable them. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add quirk for controllers that need small delays for PIOAnton Vorontsov2009-03-242-0/+5
| | | | | | | | | | | | | | | | | | | | | | Small udelay is needed to make eSDHC work in PIO mode. Without the delay reading causes endless interrupt storm, and writing corrupts data. The first guess would be that we must wait for some bit in some register, but I didn't find any reliable bits that change before and after the delay. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add set_clock callback and a quirk for nonstandard clocksAnton Vorontsov2009-03-242-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FSL eSDHC hosts have incompatible register map to manage the SDCLK. This patch adds set_clock callback so that drivers could overwrite set_clock behaviour. Similar patch[1] was posted by Ben Dooks, though in Ben's version the callback is named change_clock, plus the patch has some unrelated bits that makes the patch difficult to reuse. [1] http://lkml.org/lkml/2008/12/2/160 Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add get_{max,timeout}_clock callbacksBen Dooks2009-03-242-7/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some controllers do not provide clock information in their capabilities (in the Samsung case, it is because there are multiple clock sources available to the controller). Add hooks to allow the system to supply clock information. p.s. In the original Ben's patch there was a bug that makes sdhci_add_host() return -ENODEV even if callbacks were specified. This is fixed now. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add support for hosts reporting inverted write-protect stateAnton Vorontsov2009-03-242-0/+4
| | | | | | | | | | | | | | | | | | | | | | This patch adds SDHCI_QUIRK_INVERTED_WRITE_PROTECT quirk. When specified, the sdhci driver will invert WP state. p.s. Actually, the quirk is more board-specific than controller-specific. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Add support for card-detection pollingAnton Vorontsov2009-03-242-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds SDHCI_QUIRK_BROKEN_CARD_DETECTION quirk. When specified, sdhci driver will set MMC_CAP_NEEDS_POLL MMC host capability, and won't enable card insert/remove interrupts. This is needed for hosts with unreliable card detection, such as FSL eSDHC. The original eSDHC driver was tring to "debounce" card-detection IRQs by reading present state and disabling particular interrupts. But with this debouncing scheme I noticed that sometimes we miss card insertion/removal events. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Enable only relevant (DMA/PIO) interrupts during transfersAnton Vorontsov2009-03-241-3/+14
| | | | | | | | | | | | | | | | | | | | | | | | Some hosts (that is, FSL eSDHC) throw PIO interrupts during DMA transfers, this causes tons of unneeded interrupts, and thus highly degraded speed. This patch modifies the driver so that now we only enable relevant (DMA or PIO) interrupts during transfers. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Split card-detection IRQs management from sdhci_init()Anton Vorontsov2009-03-242-17/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Card detection interrupts should be handled separately as they should not be enabled before mmc_add_host() returns and should be disabled before calling mmc_remove_host(). The same is for suspend and resume routines. sdhci_init() no longer enables card-detection irqs. Instead, two new functions implemented: sdhci_enable_card_detection() and sdhci_disable_card_detection(). New sdhci_reinit() call implemented to behave the same way as the old sdhci_init(). Also, this patch implements and uses few new helpers to manage IRQs in a more conveinient way, that is: - sdhci_clear_set_irqs() - sdhci_unmask_irqs() - sdhci_mask_irqs() - SDHCI_INT_ALL_MASK constant sdhci_enable_sdio_irq() converted to these new helpers, plus the helpers will be used by the subsequent patches. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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