mmc: tmio: Preinitialize regulator to 3.3V

Preinitialize the SD card signals regulator to 3.3V, which is the
default post-reset setting, to be sure the regulator is set to a
valid value.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

diff --git a/drivers/mmc/tmio-common.c b/drivers/mmc/tmio-common.c
index 2a73829..0eca83a 100644 (file)
--- a/drivers/mmc/tmio-common.c
+++ b/drivers/mmc/tmio-common.c
@@ -720,6 +720,8 @@ int tmio_sd_probe(struct udevice *dev, u32 quirks)
 
 #ifdef CONFIG_DM_REGULATOR
        device_get_supply_regulator(dev, "vqmmc-supply", &priv->vqmmc_dev);
+       if (priv->vqmmc_dev)
+               regulator_set_value(priv->vqmmc_dev, 3300000);
 #endif
 
        ret = mmc_of_parse(dev, &plat->cfg);