diff options
| author | Haibo Chen <haibo.chen@nxp.com> | 2020-02-19 11:25:56 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-03-24 16:35:41 +0300 |
| commit | af8fade4bd7bc7bf49851832a20166213e032978 (patch) | |
| tree | 156d97cd109fcb078d6398817a1076092f6b03b3 /drivers | |
| parent | e534b82f24b3b83f65a8f59283624f24992235e5 (diff) | |
| download | linux-af8fade4bd7bc7bf49851832a20166213e032978.tar.xz | |
mmc: sdhci-esdhc-imx: restore pin state when resume back
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@nxp.com>
Link: https://lore.kernel.org/r/1582100757-20683-8-git-send-email-haibo.chen@nxp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 10 |
1 files changed, 9 insertions, 1 deletions
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); |