[PATCH 21/22] OMAP: hsmmc: add platform data for eMMC hardware reset gpio

Adrian Hunter
2011-05-05T11:51:21Z

eMMC may have a hardware reset line connected to a gpio,
so pass it to the driver.

Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
---
arch/arm/mach-omap2/hsmmc.c | 5 +++++
arch/arm/mach-omap2/hsmmc.h | 1 +
arch/arm/plat-omap/include/plat/mmc.h | 1 +
3 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 34cba89..85f27af 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -472,6 +472,11 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
mmc->slots[0].switch_pin = c->gpio_cd;
mmc->slots[0].gpio_wp = c->gpio_wp;

+ if (c->gpio_hw_reset)
+ mmc->slots[0].gpio_hw_reset = c->gpio_hw_reset;
+ else
+ mmc->slots[0].gpio_hw_reset = -EINVAL;
+
mmc->slots[0].remux = c->remux;
mmc->slots[0].init_card = c->init_card;

diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index 0f2a87e..b78ed41 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -22,6 +22,7 @@ struct omap2_hsmmc_info {
bool nomux; /* No default muxing for this slot */
int gpio_cd; /* or -EINVAL */
int gpio_wp; /* or -EINVAL */
+ int gpio_hw_reset; /* hardware reset */
char *name; /* or NULL for default */
struct device *dev; /* returned: pointer to mmc adapter */
int ocr_mask; /* temporary HACK */
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index e3c9b20..9b69b7e 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -119,6 +119,7 @@ struct omap_mmc_platform_data {

int switch_pin; /* gpio (card detect) */
int gpio_wp; /* gpio (write protect) */
+ int gpio_hw_reset; /* gpio (hardware reset) */

int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
int (*set_power)(struct device *dev, int slot,
--
1.7.0.4