[3/4] sh_mmcif: Allow the platform to specify own get_cd handler

Commit Message

Arnd Hannemann Aug. 24, 2010, 3:27 p.m. UTC

None

Patch

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 5d3f824..25eebbb 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -710,9 +710,21 @@  static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	host->bus_width = ios->bus_width;
 }
 
+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;
+
+	if (!p->get_cd)
+		return -ENOSYS;
+	else
+		return p->get_cd(host->pd);
+}
+
 static struct mmc_host_ops sh_mmcif_ops = {
 	.request	= sh_mmcif_request,
 	.set_ios	= sh_mmcif_set_ios,
+	.get_cd		= sh_mmcif_get_cd,
 };
 
 static void sh_mmcif_detect(struct mmc_host *mmc)
diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h
index d4a2ebb..d19e211 100644
--- a/include/linux/mmc/sh_mmcif.h
+++ b/include/linux/mmc/sh_mmcif.h
@@ -34,6 +34,7 @@ 
 struct sh_mmcif_plat_data {
 	void (*set_pwr)(struct platform_device *pdev, int state);
 	void (*down_pwr)(struct platform_device *pdev);
+	int (*get_cd)(struct platform_device *pdef);
 	u8	sup_pclk;	/* 1 :SH7757, 0: SH7724/SH7372 */
 	unsigned long caps;
 	u32	ocr;