litmus-rt-tegra.git/include/linux/mmc, branch master

Added missing tegra files.

2013-01-22T15:38:37+00:00

Patched in Tegra support.

2013-01-17T21:15:55+00:00

Merge tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

2012-12-11T19:19:09+00:00

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.8:

  Core:
   - Expose access to the eMMC RPMB ("Replay Protected Memory Block")
     area by extending the existing mmc_block ioctl.
   - Add SDIO powered-suspend DT properties to the core MMC DT binding.
   - Add no-1-8-v DT flag for boards where the SD controller reports
     that it supports 1.8V but the board itself has no way to switch to
     1.8V.
   - More work on switching to 1.8V UHS support using a vqmmc regulator.
   - Fix up a case where the slot-gpio helper may fail to reset the host
     controller properly if a card was removed during a transfer.
   - Fix several cases where a broken device could cause an infinite
     loop while we wait for a register to update.

  Drivers:
   - at91-mci: Remove obsolete driver, atmel-mci handles these devices
     now.
   - sdhci-dove: Allow using GPIOs for card-detect notifications.
   - sdhci-esdhc: Fix for recovering from ADMA errors on broken silicon.
   - sdhci-s3c: Add pinctrl support.
   - wmt-sdmmc: New driver for WonderMedia SD/MMC controllers."

* tag 'mmc-updates-for-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (65 commits)
  mmc: sdhci: implement the .card_event() method
  mmc: extend the slot-gpio card-detection to use host's .card_event() method
  mmc: add a card-event host operation
  mmc: sdhci-s3c: Fix compilation warning
  mmc: sdhci-pci: Enable SDHCI_CAN_DO_HISPD for Ricoh SDHCI controller
  mmc: sdhci-dove: allow GPIOs to be used for card detection on Dove
  mmc: sdhci-dove: use two-stage initialization for sdhci-pltfm
  mmc: sdhci-dove: use devm_clk_get()
  mmc: eSDHC: Recover from ADMA errors
  mmc: dw_mmc: remove duplicated buswidth code
  mmc: dw_mmc: relocate where dw_mci_setup_bus() is called from
  mmc: Limit MMC speed to 52MHz if not HS200
  mmc: dw_mmc: use devres functions in dw_mmc
  mmc: sh_mmcif: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: remove unneeded clock connection ID
  mmc: sh_mobile_sdhi: fix clock frequency printing
  mmc: Remove redundant null check before kfree in bus.c
  mmc: Remove redundant null check before kfree in sdio_bus.c
  mmc: sdhci-imx-esdhc: use more devm_* functions
  mmc: dt: add no-1-8-v device tree flag
  ...

mmc: add a card-event host operation

2012-12-07T18:55:31+00:00

Some hosts need to perform additional actions upon card insertion or
ejection. Add a host operation to be called from card detection handlers.

Signed-off-by: Guennadi Liakhovetski 
Reviewed-by: Shawn Guo 
Signed-off-by: Chris Ball

mmc: sdhci: add quirk for lack of 1.8v support

2012-12-06T18:55:04+00:00

The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v
capable, and it truthfully reports so in its capabilities. This
alternate voltage is used for driving new "UHS-I" SD cards at their
full speed.

However, what the controller doesn't know is that the motherboard
physically doesn't have a 1.8v supply available.

Add a quirk so that systems such as this one can override disable
1.8v support, adding support for UHS-I cards (by running them at
3.3v).

This avoids a problem where the system would first try to run the
card at 1.8v, fail, and then not be able to fully reset the card
to retry at the normal 3.3v voltage.

This is more appropriate than using the MISSING_CAPS quirk, which
is intended for cases where the SDHCI controller is actually lying
about its capabilities, and would force us to somehow override both
caps words from another source.

Signed-off-by: Daniel Drake 
Reviewed-by: Philip Rakity 
Signed-off-by: Chris Ball

mmc: dw_mmc: Add sdio power bindings

2012-12-06T18:54:54+00:00

Add dt-based retrieval of host sdio pm capabilities. Based on
the dt based discovery do a bus init in the resume function.

Signed-off-by: Olof Johansson 
Signed-off-by: Abhilash Kesavan 
Signed-off-by: Chris Ball

mmc: core: Add mmc_set_blockcount feature

2012-12-06T18:54:48+00:00

Provide support for automatically sending Set Block Count
(CMD23) messages. Used at least for RPMB support.

Signed-off-by: Alex Macro 
Signed-off-by: Loic Pallardy 
Reviewed-by: Namjae Jeon 
Acked-by: Linus Walleij 
Acked-by: Johan Rudholm 
Acked-by: Krishna Konda 
Signed-off-by: Chris Ball

mmc: core: Expose access to RPMB partition

2012-12-06T18:54:46+00:00

Following JEDEC standard, if the mmc supports RPMB partition,
a new interface is created and exposed via /dev/block.
Users will be able to access RPMB partition using standard
mmc IOCTL commands.

Signed-off-by: Alex Macro 
Signed-off-by: Loic Pallardy 
Reviewed-by: Namjae Jeon 
Acked-by: Linus Walleij 
Acked-by: Johan Rudholm 
Acked-by: Krishna Konda 
Signed-off-by: Chris Ball

mmc: host: Make UHS timing values fully unique

2012-12-06T18:54:46+00:00

Both of MMC_TIMING_LEGACY and MMC_TIMING_UHS_SDR12 are defined
to 0. And ios->timing is set to MMC_TIMING_LEGACY during power up.
But set_ios can't distinguish these two timing if host support
spec 3.0. Just adjust timing values to be different can resolve
this issue without any other impact.

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

mmc: Standardise capability type

2012-12-06T18:54:44+00:00

There are discrepancies with regards to how MMC capabilities
are carried throughout the subsystem. Let's standardise them
to eliminate any confusion.

Signed-off-by: Lee Jones 
Signed-off-by: Chris Ball