mmc: add a driver callback for power-cycle

[platform/kernel/u-boot.git] / drivers / mmc / mmc.c

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index c2c85ba..f683b52 100644 (file)
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1546,6 +1546,16 @@ static int mmc_set_ios(struct mmc *mmc)
 
        return ret;
 }
+
+static int mmc_host_power_cycle(struct mmc *mmc)
+{
+       int ret = 0;
+
+       if (mmc->cfg->ops->host_power_cycle)
+               ret = mmc->cfg->ops->host_power_cycle(mmc);
+
+       return ret;
+}
 #endif
 
 int mmc_set_clock(struct mmc *mmc, uint clock, bool disable)
@@ -2715,6 +2725,11 @@ static int mmc_power_cycle(struct mmc *mmc)
        ret = mmc_power_off(mmc);
        if (ret)
                return ret;
+
+       ret = mmc_host_power_cycle(mmc);
+       if (ret)
+               return ret;
+
        /*
         * SD spec recommends at least 1ms of delay. Let's wait for 2ms
         * to be on the safer side.