1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 12cde6ee17f5..2c7c83f832d2 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -585,6 +585,9 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
          * Inform the card of the voltage
          */
         if (!powered_resume) {
+                /* The initialization should be done at 3.3 V I/O voltage. */
+                mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
                 err = mmc_send_io_op_cond(host, host->ocr, &ocr);
                 if (err)
                         goto err;
@@ -996,6 +999,11 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
          * With these steps taken, mmc_select_voltage() is also required to
          * restore the correct voltage setting of the card.
          */
+
+        /* The initialization should be done at 3.3 V I/O voltage. */
+        if (!mmc_card_keep_power(host))
+                mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_330, 0);
+
         sdio_reset(host);
         mmc_go_idle(host);
         mmc_send_if_cond(host, host->ocr_avail);