mmc: mediatek: add SD write protect support

use mmc core layer's API to support sd write protect

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 82a97ac..f01972e 100644 (file)
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -35,6 +35,7 @@
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/sd.h>
 #include <linux/mmc/sdio.h>
+#include <linux/mmc/slot-gpio.h>
 
 #define MAX_BD_NUM          1024
 
@@ -1452,6 +1453,7 @@ static struct mmc_host_ops mt_msdc_ops = {
        .pre_req = msdc_pre_req,
        .request = msdc_ops_request,
        .set_ios = msdc_ops_set_ios,
+       .get_ro = mmc_gpio_get_ro,
        .start_signal_voltage_switch = msdc_ops_switch_volt,
        .card_busy = msdc_card_busy,
        .execute_tuning = msdc_execute_tuning,