litmus-rt.git/include/linux/mmc, branch wip-nested-locking

mmc: core: Bus width testing needs to handle suspend/resume

2011-07-13T18:54:37+00:00

On reading the ext_csd for the first time (in 1 bit mode), save the
ext_csd information needed for bus width compare.

On every pass we make re-reading the ext_csd, compare the data
against the saved ext_csd data.

This fixes a regression introduced in 3.0-rc1 by 08ee80cc397ac1a3
("mmc: core: eMMC bus width may not work on all platforms"), which
incorrectly assumed we would be re-reading the ext_csd at resume-
time.

Signed-off-by: Philip Rakity 
Tested-by: Jaehoon Chung 
Signed-off-by: Chris Ball

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

2011-05-25T23:55:55+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (75 commits)
  mmc: core: eMMC bus width may not work on all platforms
  mmc: sdhci: Auto-CMD23 fixes.
  mmc: sdhci: Auto-CMD23 support.
  mmc: core: Block CMD23 support for UHS104/SDXC cards.
  mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.
  mmc: core: Use CMD23 for multiblock transfers when we can.
  mmc: quirks: Add/remove quirks conditional support.
  mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver
  mmc: sdhci-pxa: Add quirks for DMA/ADMA to match h/w
  mmc: core: duplicated trial with same freq in mmc_rescan_try_freq()
  mmc: core: add support for eMMC Dual Data Rate
  mmc: core: eMMC signal voltage does not use CMD11
  mmc: sdhci-pxa: add platform code for UHS signaling
  mmc: sdhci: add hooks for setting UHS in platform specific code
  mmc: core: clear MMC_PM_KEEP_POWER flag on resume
  mmc: dw_mmc: fixed wrong regulator_enable in suspend/resume
  mmc: sdhi: allow powering down controller with no card inserted
  mmc: tmio: runtime suspend the controller, where possible
  mmc: sdhi: support up to 3 interrupt sources
  mmc: sdhi: print physical base address and clock rate
  ...

mmc: sdhci: Auto-CMD23 support.

2011-05-25T20:51:40+00:00

Enables Auto-CMD23 support where available (SDHCI 3.0 controllers)

Signed-off-by: Andrei Warkentin 
Tested-by: Arindam Nath 
Signed-off-by: Chris Ball

mmc: core: Block CMD23 support for UHS104/SDXC cards.

2011-05-25T20:49:03+00:00

SD cards operating at UHS104 or better support SET_BLOCK_COUNT.

Signed-off-by: Andrei Warkentin 
Reviewed-by: Arindam Nath 
Signed-off-by: Chris Ball

mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.

2011-05-25T20:49:00+00:00

Implements support for multiblock transfers bounded
by SET_BLOCK_COUNT (CMD23).

Signed-off-by: Andrei Warkentin 
Signed-off-by: Chris Ball

mmc: core: Use CMD23 for multiblock transfers when we can.

2011-05-25T20:48:46+00:00

CMD23-prefixed instead of open-ended multiblock transfers
have a performance advantage on some MMC cards.

Signed-off-by: Andrei Warkentin 
Signed-off-by: Chris Ball

mmc: quirks: Add/remove quirks conditional support.

2011-05-25T03:54:01+00:00

Conditional add/remove quirks for MMC and SD.

Signed-off-by: Andrei Warkentin 
Signed-off-by: Chris Ball

mmc: core: add support for eMMC Dual Data Rate

2011-05-25T03:53:58+00:00

eMMC voltage change not required for 1.8V.  3.3V and 1.8V vcc
are capable of doing DDR. vccq of 1.8v is not required.

Signed-off-by: Philip Rakity 
Reviewed-by: Arindam Nath 
Signed-off-by: Chris Ball

mmc: sdhi: allow powering down controller with no card inserted

2011-05-25T03:53:55+00:00

Supply a link to TMIO private data for platforms to implement their
own card detection.

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

mmc: sdio: optimized SDIO IRQ handling for single irq

2011-05-25T03:53:50+00:00

If there is only 1 function interrupt registered it is possible to
improve performance by directly calling the irq handler and avoiding
the overhead of reading the CCCR registers.

Signed-off-by: Per Forlin 
Acked-by: Ulf Hansson 
Reviewed-by: Nicolas Pitre 
Signed-off-by: Chris Ball