diff options
| author | Arnd Hannemann <arnd@arndnet.de> | 2010-08-24 19:26:59 +0400 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-10-29 02:29:08 +0400 |
| commit | 19ca7502c508595edfb963e5dbcf62854a926506 (patch) | |
| tree | bb7dfaa2cba6cc40fad59ee0f6a084ceb30eac7b | |
| parent | 9b16c0a43b74393cc18666a7748293812c61af1f (diff) | |
| download | linux-19ca7502c508595edfb963e5dbcf62854a926506.tar.xz | |
mmc: Allow the tmio_mmc mfd driver to specify get_cd handler
Some controllers, supported by the tmio_mmc driver do not have the card
detect pin of a slot connected, so that polling needs to be used and
card detection is handled by other means.
This patch exposes a get_cd hook for that purpose.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| -rw-r--r-- | drivers/mmc/host/tmio_mmc.c | 13 | ||||
| -rw-r--r-- | include/linux/mfd/tmio.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c index 69d98e3bf6ab..1a47221d01a4 100644 --- a/drivers/mmc/host/tmio_mmc.c +++ b/drivers/mmc/host/tmio_mmc.c @@ -756,10 +756,23 @@ static int tmio_mmc_get_ro(struct mmc_host *mmc) (sd_ctrl_read32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT)) ? 0 : 1; } +static int tmio_mmc_get_cd(struct mmc_host *mmc) +{ + struct tmio_mmc_host *host = mmc_priv(mmc); + struct mfd_cell *cell = host->pdev->dev.platform_data; + struct tmio_mmc_data *pdata = cell->driver_data; + + if (!pdata->get_cd) + return -ENOSYS; + else + return pdata->get_cd(host->pdev); +} + static const struct mmc_host_ops tmio_mmc_ops = { .request = tmio_mmc_request, .set_ios = tmio_mmc_set_ios, .get_ro = tmio_mmc_get_ro, + .get_cd = tmio_mmc_get_cd, }; #ifdef CONFIG_PM diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h index f07425bc3dcd..24c43bbad541 100644 --- a/include/linux/mfd/tmio.h +++ b/include/linux/mfd/tmio.h @@ -74,6 +74,7 @@ struct tmio_mmc_data { struct tmio_mmc_dma *dma; void (*set_pwr)(struct platform_device *host, int state); void (*set_clk_div)(struct platform_device *host, int state); + int (*get_cd)(struct platform_device *host); }; /* |