Doug / smarc-fsl-linux-kernel

28 May, 2010

1 commit

  • 6c1f716e8   sdio: add new function for RAW (Read after Write) operation ... Browse Code »

    SDIO specification allows RAW (Read after Write) operation using
    IO_RW_DIRECT command (CMD52) by setting the RAW bit. This operation is
    similar to ordinary read/write commands, except that both write and read
    are performed using single command/response pair. The Linux SDIO layer
    already supports this internaly, only external function is missing for
    drivers to make use, which is added by this patch.

    This type of command is required to implement proper power save mode
    support in wl1251 wifi driver.

    Android has similar patch for G1 in it's tree for the same reason:

    http://android.git.kernel.org/?p=kernel/common.git;a=commitdiff;h=74a47786f6ecbe6c1cf9fb15efe6a968451deb52

    Signed-off-by: Grazvydas Ignotas
    Acked-by: Kalle Valo
    Cc: Dmitry Shmidt
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Grazvydas Ignotas
     

07 Mar, 2010

1 commit

  • da68c4eb2   sdio: introduce API for special power management features ... Browse Code »

    This patch series provides the core changes needed to allow SDIO cards to
    remain powered and active while the host system is suspended, and let them
    wake up the host system when needed. This is used to implement
    wake-on-lan with SDIO wireless cards at the moment. Patches to add that
    support to the libertas driver will be posted separately.

    This patch:

    Some SDIO cards have the ability to keep on running autonomously when the
    host system is suspended, and wake it up when needed. This however
    requires that the host controller preserve power to the card, and
    configure itself appropriately for wake-up.

    There is however 4 layers of abstractions involved: the host controller
    driver, the MMC core code, the SDIO card management code, and the actual
    SDIO function driver. To make things simple and manageable, host drivers
    must advertise their PM capabilities with a feature bitmask, then function
    drivers can query and set those features from their suspend method. Then
    each layer in the suspend call chain is expected to act upon those bits
    accordingly.

    [akpm@linux-foundation.org: fix typo in comment]
    Signed-off-by: Nicolas Pitre
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nicolas Pitre
     

23 Sep, 2009

1 commit

09 Nov, 2008

1 commit

17 Jul, 2008

1 commit

  • 8a0ca91e1   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc ... Browse Code »

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (68 commits)
    sdio_uart: Fix SDIO break control to now return success or an error
    mmc: host driver for Ricoh Bay1Controllers
    sdio: sdio_io.c Fix sparse warnings
    sdio: fix the use of hard coded timeout value.
    mmc: OLPC: update vdd/powerup quirk comment
    mmc: fix spares errors of sdhci.c
    mmc: remove multiwrite capability
    wbsd: fix bad dma_addr_t conversion
    atmel-mci: Driver for Atmel on-chip MMC controllers
    mmc: fix sdio_io sparse errors
    mmc: wbsd.c fix shadowing of 'dma' variable
    MMC: S3C24XX: Refuse incorrectly aligned transfers
    MMC: S3C24XX: Add maintainer entry
    MMC: S3C24XX: Update error debugging.
    MMC: S3C24XX: Add media presence test to request handling.
    MMC: S3C24XX: Fix use of msecs where jiffies are needed
    MMC: S3C24XX: Add MODULE_ALIAS() entries for the platform devices
    MMC: S3C24XX: Fix s3c2410_dma_request() return code check.
    MMC: S3C24XX: Allow card-detect on non-IRQ capable pin
    MMC: S3C24XX: Ensure host->mrq->data is valid
    ...

    Manually fixed up bogus executable bits on drivers/mmc/core/sdio_io.c
    and include/linux/mmc/sdio_func.h when merging.

    Linus Torvalds
     

15 Jul, 2008

3 commits

  • 62a7573ee   sdio: fix the use of hard coded timeout value. ... Browse Code »

    This adds reading and using of enable_timeout from the CIS

    Signed-off-by: Benzi Zbit
    Signed-off-by: Tomas Winkler
    Signed-off-by: Pierre Ossman

    Benzi Zbit
     
  • 6d3733316   mmc: fix sdio_io sparse errors ... Browse Code »

    This patch fixes sdio_io sparse errors.
    This fix changes signature of API functions,
    changing
    unsigned char -> u8
    unsigned short -> u16
    unsigned long -> u32 - this was probably a bug in 64 bit platforms

    Signed-off-by: Tomas Winkler
    Signed-off-by: Pierre Ossman

    Tomas Winkler
     
  • ad3868b2e   mmc,sdio: helper function for transfer padding ... Browse Code »

    There are a lot of crappy controllers out there that cannot handle
    all the request sizes that the MMC/SD/SDIO specifications require.
    In case the card driver can pad the data to overcome the problems,
    this commit adds a helper that calculates how much that padding
    should be.

    A corresponding helper is also added for SDIO, but it can also deal
    with all the complexities of splitting up a large transfer efficiently.

    Signed-off-by: Pierre Ossman

    Pierre Ossman
     

24 Sep, 2007

13 commits