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    Subject[PATCH 1/5 V2] MMC: core - fix the use of hard coded timeout value.
    Date
    From: Benzi Zbit <Benzi.Zbit@intel.com>

    This adds reading and using of enable_timeout from the CIS

    Signed-off-by: Benzi Zbit <Benzi.Zbit@intel.com>
    Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
    ---
    drivers/mmc/core/sdio_cis.c | 2 ++
    drivers/mmc/core/sdio_io.c | 7 ++-----
    include/linux/mmc/sdio_func.h | 1 +
    3 files changed, 5 insertions(+), 5 deletions(-)

    diff --git a/drivers/mmc/core/sdio_cis.c b/drivers/mmc/core/sdio_cis.c
    index d5e51b1..e3a9797 100644
    --- a/drivers/mmc/core/sdio_cis.c
    +++ b/drivers/mmc/core/sdio_cis.c
    @@ -129,6 +129,8 @@ static int cistpl_funce_func(struct sdio_func *func,
    /* TPLFE_MAX_BLK_SIZE */
    func->max_blksize = buf[12] | (buf[13] << 8);

    + /* TPLFE_ENABLE_TIMEOUT_VAL */
    + func->enable_timeout = buf[28] | (buf[29] << 8);
    return 0;
    }

    diff --git a/drivers/mmc/core/sdio_io.c b/drivers/mmc/core/sdio_io.c
    index 625b92c..252c4fd 100644
    --- a/drivers/mmc/core/sdio_io.c
    +++ b/drivers/mmc/core/sdio_io.c
    @@ -76,11 +76,8 @@ int sdio_enable_func(struct sdio_func *func)
    if (ret)
    goto err;

    - /*
    - * FIXME: This should timeout based on information in the CIS,
    - * but we don't have card to parse that yet.
    - */
    - timeout = jiffies + HZ;
    + /* max enable timeout is in units of 10mS */
    + timeout = jiffies + msecs_to_jiffies(func->enable_timeout * 10);

    while (1) {
    ret = mmc_io_rw_direct(func->card, 0, 0, SDIO_CCCR_IORx, 0, &reg);
    diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h
    index b050f4d..8de40f1 100644
    --- a/include/linux/mmc/sdio_func.h
    +++ b/include/linux/mmc/sdio_func.h
    @@ -46,6 +46,7 @@ struct sdio_func {
    unsigned max_blksize; /* maximum block size */
    unsigned cur_blksize; /* current block size */

    + unsigned enable_timeout; /* max enable timeout in units of 10mS steps */
    unsigned int state; /* function state */
    #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */

    --
    1.5.4.1
    ---------------------------------------------------------------------
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