From: Haibo Chen <haibo.chen@xxxxxxx> 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 | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 786305309eb0..b38b9d7f0a0d 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -1731,7 +1731,11 @@ static int sdhci_esdhc_suspend(struct device *dev) if (host->tuning_mode != SDHCI_TUNING_MODE_3) mmc_retune_needed(host->mmc); - return sdhci_suspend_host(host); + ret = sdhci_suspend_host(host); + if (!ret) + return pinctrl_pm_select_sleep_state(dev); + + return ret; } static int sdhci_esdhc_resume(struct device *dev) @@ -1739,6 +1743,10 @@ static int sdhci_esdhc_resume(struct device *dev) struct sdhci_host *host = dev_get_drvdata(dev); int ret; + ret = pinctrl_pm_select_default_state(dev); + if (ret) + return ret; + /* re-initialize hw state in case it's lost in low power mode */ sdhci_esdhc_imx_hwinit(host); -- 2.17.1
