In some low power mode, SoC will lose the pin state, so need to restore
the pin state when resume back.
Signed-off-by: Haibo Chen <haibo.chen@xxxxxxx>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 984cc1a788cb..7cfcc8618e45 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1392,17 +1392,23 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
static int sdhci_esdhc_suspend(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_suspend_host(host);
+ ret = sdhci_suspend_host(host);
+ pinctrl_pm_select_sleep_state(dev);
+
+ return ret;
}
static int sdhci_esdhc_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
+ pinctrl_pm_select_default_state(dev);
+
/* re-initialize hw state in case it's lost in low power mode */
sdhci_esdhc_imx_hwinit(host);
--
2.17.1
