Javier Martin f6ad0a4813 mmc: mxcmmc: fix bug that may block a data transfer forever ... The problem can be easily reproduced using a script that loops copying a file in an SD card to another place in the same SD card and its related to read transfers. This only happens with DMA enabled. This is related to the fact that, when reading, an MMC irq signals the fact that all data from the SD card has been copied to the internal buffers. However, it doesn't signal whether the DMA transfer that is in charge of moving data from these internal buffers to RAM has finished or not. Thus, calling dmaengine_terminate_all() in the MMC irq routine can cancel an ongoing DMA transfer leaving some data in the internal buffers that produces an accumulative effect which, in the end, blocks a read data transfer forever. The following patch watches DMA irq for reading and MMC irqs for writing transfers. The 'dangerous' usage of dmaengine_terminate_all() is removed and a timeout of 10 seconds is added so that the MMC won't block forever anymore. Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>		2012-10-03 10:05:24 -04:00
..
at91_mci.c	ARM: at91: code removal of CAP9 SoC	2012-02-03 13:33:05 +01:00
at91_mci.h	mmc: at91_mci: move register header from include/ to drivers/	2011-07-21 10:35:08 -04:00
atmel-mci-regs.h	mmc: atmel-mci: AP700x PDC is not connected to MCI	2012-10-03 10:05:23 -04:00
atmel-mci.c	mmc: atmel-mci: AP700x PDC is not connected to MCI	2012-10-03 10:05:23 -04:00
au1xmmc.c	MIPS: Alchemy: Au1300 SoC support	2011-12-07 22:02:05 +00:00
bfin_sdh.c	mmc: bfin_sdh: Reset SD controller when resume from power saving mode.	2012-09-04 13:58:20 -04:00
cb710-mmc.c	mmc: convert drivers/mmc/host/* to use module_platform_driver()	2012-01-11 23:58:42 -05:00
cb710-mmc.h	mmc: Driver for CB710/720 memory card reader (MMC part)	2009-06-13 22:42:58 +02:00
davinci_mmc.c	mmc: davinci_mmc: convert to DMA engine API	2012-09-19 16:29:44 +08:00
dw_mmc-exynos.c	mmc: dw_mmc: add support for exynos specific implementation of dw-mshc	2012-10-03 10:05:20 -04:00
dw_mmc-pci.c	mmc: dw_mmc: convert copy of struct device in struct dw_mci to a reference	2012-10-03 10:05:13 -04:00
dw_mmc-pltfm.c	mmc: dw_mmc: add support for implementation specific callbacks	2012-10-03 10:05:19 -04:00
dw_mmc-pltfm.h	mmc: dw_mmc: add support for implementation specific callbacks	2012-10-03 10:05:19 -04:00
dw_mmc.c	mmc: dw_mmc: add support for implementation specific callbacks	2012-10-03 10:05:19 -04:00
dw_mmc.h	mmc: dw_mmc: add support for implementation specific callbacks	2012-10-03 10:05:19 -04:00
jz4740_mmc.c	mmc: convert drivers/mmc/host/* to use module_platform_driver()	2012-01-11 23:58:42 -05:00
Kconfig	mmc: dw_mmc: add support for exynos specific implementation of dw-mshc	2012-10-03 10:05:20 -04:00
Makefile	mmc: dw_mmc: add support for exynos specific implementation of dw-mshc	2012-10-03 10:05:20 -04:00
mmc_spi.c	mmc: mmc_spi: Use module_spi_driver	2012-09-04 13:58:29 -04:00
mmci.c	mmc: mmci: use clk_prepare_enable and clk_disable_unprepare	2012-10-03 10:05:21 -04:00
mmci.h	ARM: 7280/1: mmc: mmci: Cache MMCICLOCK and MMCIPOWER register	2012-02-02 17:02:15 +00:00
msm_sdcc.c	mmc: remove the second argument of k[un]map_atomic()	2012-01-11 23:58:42 -05:00
msm_sdcc.h	mmc: msm_sdcc: Use MCI_INT_MASK0 for PIO interrupts	2011-10-26 15:43:37 -04:00
mvsdio.c	ARM: Orion: fix driver probe error handling with respect to clk	2012-07-25 17:06:21 +02:00
mvsdio.h
mxcmmc.c	mmc: mxcmmc: fix bug that may block a data transfer forever	2012-10-03 10:05:24 -04:00
mxs-mmc.c	mmc: mxs-mmc: fix deadlock caused by recursion loop	2012-09-04 13:58:06 -04:00
of_mmc_spi.c	mmc: of_mmc_spi: fix little endian support	2012-02-13 20:38:58 -05:00
omap_hsmmc.c	mmc: omap_hsmmc: Pass on the suspend failure to the PM core	2012-10-03 10:05:23 -04:00
omap.c	mmc: omap: fix mmc_omap_report_irq to use dev_dbg macros	2012-09-04 13:58:22 -04:00
pxamci.c	mmc: pxa-mci: add DT bindings	2012-09-04 13:58:12 -04:00
pxamci.h
s3cmci.c	mmc: s3cmci: Convert s3cmci driver to gpiolib API	2012-07-22 15:25:44 -04:00
s3cmci.h	s3cmci: DMA fixes	2009-10-01 16:11:15 -07:00
sdhci-cns3xxx.c	mmc: convert drivers/mmc/host/* to use module_platform_driver()	2012-01-11 23:58:42 -05:00
sdhci-dove.c	mmc: sdhci-dove: DT support for sdhci-dove	2012-09-04 13:58:15 -04:00
sdhci-esdhc-imx.c	mmc: esdhc: Fix DMA_MASK to not break mx25 DMA access	2012-07-22 16:42:30 -04:00
sdhci-esdhc.h	mmc: sdhci-esdhc: break out early if clock is 0	2012-09-04 13:58:06 -04:00
sdhci-of-esdhc.c	mmc: eSDHC: Add ADMA mode support	2012-09-04 13:58:12 -04:00
sdhci-of-hlwd.c	mmc: convert drivers/mmc/host/* to use module_platform_driver()	2012-01-11 23:58:42 -05:00
sdhci-pci-data.c	mmc: sdhci-pci: add platform data	2012-01-11 23:58:47 -05:00
sdhci-pci.c	mmc: sdhci-pci: Use module_pci_driver	2012-09-04 13:58:29 -04:00
sdhci-pltfm.c	mmc: dt: Consolidate DT bindings	2012-05-15 13:29:42 +02:00
sdhci-pltfm.h	mmc: sdhci: remove "state" argument from sdhci_suspend_host	2011-12-19 15:50:11 -08:00
sdhci-pxav2.c	mmc: sdhci-pxav2, sdhci-pxav3: use clk_prepare/unprepare APIs	2012-09-04 13:58:15 -04:00
sdhci-pxav3.c	mmc: sdhci-pxav3: dt: Support "cd-gpios" property	2012-09-19 16:29:12 +08:00
sdhci-s3c.c	mmc: sdhci-s3c: Add device tree support	2012-10-03 10:05:20 -04:00
sdhci-spear.c	Viresh has moved	2012-06-20 14:39:36 -07:00
sdhci-tegra.c	mmc: tegra: convert to device tree support only	2012-09-04 13:58:26 -04:00
sdhci.c	mmc: sdhci: Test cd-gpio instead of SDHCI presence when probing	2012-09-19 16:29:45 +08:00
sdhci.h	mmc: sdhci: if MAX_CURRENT is 0, try getting current from regulator	2012-07-21 00:02:22 -04:00
sdricoh_cs.c	mmc: Add module.h to drivers/mmc users assuming implicit presence.	2011-10-26 16:32:19 -04:00
sh_mmcif.c	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2012-07-24 17:12:54 -07:00
sh_mobile_sdhi.c	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2012-07-24 17:12:54 -07:00
tifm_sd.c	Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1	2012-01-14 12:32:16 -08:00
tmio_mmc_dma.c	Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma	2012-03-29 15:34:57 -07:00
tmio_mmc_pio.c	mmc: tmio: use generic GPIO CD and WP handlers	2012-07-21 00:02:20 -04:00
tmio_mmc.c	mmc: convert drivers/mmc/host/* to use module_platform_driver()	2012-01-11 23:58:42 -05:00
tmio_mmc.h	mmc: tmio_mmc: remove unused sdio_irq_enabled flag	2012-03-27 12:20:17 -04:00
ushc.c	USB: convert some miscellanies drivers to use module_usb_driver()	2011-11-18 09:52:10 -08:00
via-sdmmc.c	mmc: via-sdmmc: Use module_pci_driver	2012-09-04 13:58:30 -04:00
vub300.c	mmc: vub300: add missing usb_free_urb	2012-09-04 13:58:16 -04:00
wbsd.c	mmc: replace printk with appropriate display macro	2011-10-26 16:32:22 -04:00
wbsd.h