From 50fcbbbb79de4b95a765ea170677c9810fcb9cee Mon Sep 17 00:00:00 2001 From: Shawn Lin Date: Wed, 12 Oct 2016 10:50:37 +0800 Subject: 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 Signed-off-by: Jaehoon Chung Signed-off-by: Ulf Hansson --- drivers/mmc/core/slot-gpio.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') 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 -- cgit v1.2.3