diff options
| author |  Shawn Lin <shawn.lin@rock-chips.com>
| 2016-10-12 10:50:37 +0800 |
|---|---|---|
| committer |  Ulf Hansson <ulf.hansson@linaro.org>
| 2016-11-29 09:00:37 +0100 |
| commit | 50fcbbbb79de4b95a765ea170677c9810fcb9cee (patch) | |
| tree | 6a9abe578055294f8ff50bda912aa53fe0de60da /drivers/mmc/core | |
| parent | mmc: dw_mmc-rockchip: add runtime PM support (diff) | |
| download | linux-50fcbbbb79de4b95a765ea170677c9810fcb9cee.tar.gz linux-50fcbbbb79de4b95a765ea170677c9810fcb9cee.tar.bz2 linux-50fcbbbb79de4b95a765ea170677c9810fcb9cee.zip | |
mmc: core: expose the capability of gpio card detect
Add new helper API mmc_can_gpio_cd for slot-gpio to make
host drivers know whether it supports gpio card detect.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 27117ba47073..babe591aea96 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -258,6 +258,14 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id, } EXPORT_SYMBOL(mmc_gpiod_request_cd); +bool mmc_can_gpio_cd(struct mmc_host *host) +{ + struct mmc_gpio *ctx = host->slot.handler_priv; + + return ctx->cd_gpio ? true : false; +} +EXPORT_SYMBOL(mmc_can_gpio_cd); + /** * mmc_gpiod_request_ro - request a gpio descriptor for write protection * @host: mmc host |