linux.git/drivers/mmc, branch v3.2-rc6

mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined

2011-12-10T21:18:39+00:00

mmc_suspend_host() tries to claim host during suspend
and release it only when the bus suspend operation is
compeleted. If CONFIG_MMC_UNSAFE_RESUME is defined and
the host is flagged as removable, mmc_suspend_host()
tries to remove the card. In this process, the file system
sync can get blocked trying to acquire host which is already
claimed by mmc_suspend_host() causing deadlock.

Fix this deadlock by releasing host before ->remove() is called.

Signed-off-by: Sujit Reddy Thumma 
Acked-by: Ulf Hansson 
Acked-by: Linus Walleij 
Signed-off-by: Chris Ball

mmc: sdhci-s3c: Remove old and misprototyped suspend operations

2011-12-10T21:18:39+00:00

Now that the driver is using dev_pm_ops the suspend operations in the
platform_driver structure won't get called so don't need to be there,
and certainly shouldn't be the same function as dev_pm_ops since the
signatures are different.

Signed-off-by: Mark Brown 
Acked-by: Jaehoon Chung 
Signed-off-by: Chris Ball

mmc: tmio: fix clock gating on platforms with a .set_pwr() method

2011-12-10T21:18:38+00:00

Do not power down the card in .set_ios(), unless MMC_POWER_OFF is
requested. This fixes the SDHI functionality on ecovec.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Chris Ball

mmc: sh_mmcif: fix clock gating on platforms with a .down_pwr() method

2011-12-10T21:18:37+00:00

Do not power down the card in .set_ios(), unless MMC_POWER_OFF is
requested. This fixes the MMCIF interface functionality on ecovec boards.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Chris Ball

mmc: core: Fix typo at mmc_card_sleep

2011-12-10T21:18:37+00:00

Fix wrong bus_ops->sleep check.  (This isn't expected to have real-world
consequences, because the mmc core always defines both 'awake' and
'sleep' ops.)

Signed-off-by: Kyungmin Park 
Signed-off-by: Chris Ball

mmc: core: Fix power_off_notify during suspend

2011-12-10T21:18:36+00:00

The eMMC 4.5 devices respond to only RESET and AWAKE command in the
sleep state. Hence the mmc switch command to notify power off state
should be sent before the device enters sleep state.

This patch fixes the same.

Signed-off-by: Girish K S 
Signed-off-by: Chris Ball

mmc: core: Fix setting power notify state variable for non-eMMC

2011-12-10T21:18:36+00:00

This patch skips the setting of the power notify state variable
for non eMMC 4.5 devices. Also fixes the problem of omap_hsmmc
noisy/broken for suspend resume reported by Kevin Hilman.

Signed-off-by: Girish K S 
Acked-by: Ulf Hansson 
Signed-off-by: Chris Ball

mmc: core: Add quirk for long data read time

2011-12-10T21:18:35+00:00

Adds a quirk that sets the data read timeout to a fixed value instead
of relying on the information in the CSD. The timeout value chosen
is 300ms since that has proven enough for the problematic cards found,
but could be increased if other cards require this.

This patch also enables this quirk for certain Micron cards known to
have this problem.

Signed-off-by: Stefan Nilsson XK 
Signed-off-by: Ulf Hansson 
Acked-by: Linus Walleij 
Cc: 
Signed-off-by: Chris Ball

mmc: Add module.h include to sdhci-cns3xxx.c

2011-12-10T21:18:35+00:00

Fixes: drivers/mmc/host/sdhci-cns3xxx.c:110: error: 'THIS_MODULE'
       undeclared here (not in a function)

Reported-by: Al Viro 
Signed-off-by: Chris Ball

mmc: mxcmmc: fix falling back to PIO

2011-12-10T21:18:34+00:00

When we can't configure the dma channel we want to fall
back to PIO. We do this by setting host->do_dma to zero.
This does not work as do_dma is used to see whether dma
can be used for the current transfer. Instead, we have
to set host->dma to NULL.

Signed-off-by: Sascha Hauer 
Cc: 
Signed-off-by: Chris Ball