mmc: stm32_sdmmc2: implement host_power_cycle callback

For the correct power cycle sequence with stm32_sdmmc2, the write of the
power cycle value in PWRCTL field of SDMMC_POWER register is now done in
stm32_sdmmc2_host_power_cycle() and no more in stm32_sdmmc2_pwrcycle().

Signed-off-by: Yann Gautier <yann.gautier@st.com>

diff --git a/drivers/mmc/stm32_sdmmc2.c b/drivers/mmc/stm32_sdmmc2.c
index 32434a4762f7d532e9a3853b6ddcbd0a358b6507..1726ed72efcae87ab35006b9c985e483cc8a27b3 100644 (file)
--- a/drivers/mmc/stm32_sdmmc2.c
+++ b/drivers/mmc/stm32_sdmmc2.c
@@ -524,8 +524,6 @@ static void stm32_sdmmc2_pwrcycle(struct stm32_sdmmc2_priv *priv)
                return;
 
        stm32_sdmmc2_reset(priv);
-       writel(SDMMC_POWER_PWRCTRL_CYCLE | priv->pwr_reg_msk,
-              priv->base + SDMMC_POWER);
 }
 
 /*
@@ -619,10 +617,21 @@ static int stm32_sdmmc2_getcd(struct udevice *dev)
        return 1;
 }
 
+static int stm32_sdmmc2_host_power_cycle(struct udevice *dev)
+{
+       struct stm32_sdmmc2_priv *priv = dev_get_priv(dev);
+
+       writel(SDMMC_POWER_PWRCTRL_CYCLE | priv->pwr_reg_msk,
+              priv->base + SDMMC_POWER);
+
+       return 0;
+}
+
 static const struct dm_mmc_ops stm32_sdmmc2_ops = {
        .send_cmd = stm32_sdmmc2_send_cmd,
        .set_ios = stm32_sdmmc2_set_ios,
        .get_cd = stm32_sdmmc2_getcd,
+       .host_power_cycle = stm32_sdmmc2_host_power_cycle,
 };
 
 static int stm32_sdmmc2_probe(struct udevice *dev)