[PATCH] mmc: sdhci-sprd: Fix no reset data and command after voltage switch

[Wenchao Chen]

After switching the voltage, no reset data and command will cause
CMD2 timeout.

Fixes: 29ca763fc26f ("mmc: sdhci-sprd: Add pin control support for voltage switch")
Signed-off-by: Wenchao Chen <wenchao.chen@xxxxxxxxxx>
---
 drivers/mmc/host/sdhci-sprd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c
index b92a408f138d..464508be8ec8 100644
--- a/drivers/mmc/host/sdhci-sprd.c
+++ b/drivers/mmc/host/sdhci-sprd.c
@@ -470,7 +470,7 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
 	}
 
 	if (IS_ERR(sprd_host->pinctrl))
-		return 0;
+		goto reset;
 
 	switch (ios->signal_voltage) {
 	case MMC_SIGNAL_VOLTAGE_180:
@@ -496,6 +496,7 @@ static int sdhci_sprd_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios)
 		break;
 	}
 
+reset:
 	/* Wait for 300 ~ 500 us for pin state stable */
 	usleep_range(300, 500);
 	sdhci_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);
-- 
2.17.1