[PATCH 28/29] mmc: mmcif: add support for generic GPIO CD polling

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The generic MMC OF support can be used to configure GPIO card-detection, use
this ability.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
---
 drivers/mmc/host/sh_mmcif.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 4fdedcf..295a078 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -54,6 +54,7 @@
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sh_mmcif.h>
+#include <linux/mmc/slot-gpio.h>
 #include <linux/of.h>
 #include <linux/pagemap.h>
 #include <linux/platform_device.h>
@@ -1006,6 +1007,9 @@ static int sh_mmcif_get_cd(struct mmc_host *mmc)
 {
 	struct sh_mmcif_host *host = mmc_priv(mmc);
 	struct sh_mmcif_plat_data *p = host->pd->dev.platform_data;
+	int ret = mmc_gpio_get_cd(mmc);
+	if (ret >= 0)
+		return ret;
 
 	if (!p || !p->get_cd)
 		return -ENOSYS;
-- 
1.7.2.5

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