[PATCH 3/4] mmc: sdhci-esdhc-imx: add option to not change pinctrl state in suspend

[Ciprian Costea]

On some boards such as S32G based, changing the pinctrl state
in suspend routine may not be supported.

For this scenario the newly introduced flag
'ESDHC_FLAG_SKIP_PINCTRL_SLEEP' is used.

Signed-off-by: Ciprian Costea <ciprianmarian.costea@xxxxxxxxxxx>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 8f0bc6dca2b0..c3ff7fccd051 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -204,6 +204,9 @@
 /* The IP does not have GPIO CD wake capabilities */
 #define ESDHC_FLAG_SKIP_CD_WAKE		BIT(18)
 
+/* The IP does not support transition to pinctrl sleep state */
+#define ESDHC_FLAG_SKIP_PINCTRL_SLEEP  BIT(19)
+
 enum wp_types {
 	ESDHC_WP_NONE,		/* no WP, neither controller nor gpio */
 	ESDHC_WP_CONTROLLER,	/* mmc controller internal WP */
@@ -301,7 +304,8 @@ static struct esdhc_soc_data usdhc_s32g2_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
 			| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
-			| ESDHC_FLAG_SKIP_ERR004536 | ESDHC_FLAG_SKIP_CD_WAKE,
+			| ESDHC_FLAG_SKIP_ERR004536 | ESDHC_FLAG_SKIP_CD_WAKE
+			| ESDHC_FLAG_SKIP_PINCTRL_SLEEP,
 };
 
 static struct esdhc_soc_data usdhc_imx7ulp_data = {
@@ -1884,9 +1888,11 @@ static int sdhci_esdhc_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
-	ret = pinctrl_pm_select_sleep_state(dev);
-	if (ret)
-		return ret;
+	if (!(imx_data->socdata->flags & ESDHC_FLAG_SKIP_PINCTRL_SLEEP)) {
+		ret = pinctrl_pm_select_sleep_state(dev);
+		if (ret)
+			return ret;
+	}
 
 	ret = mmc_gpio_set_cd_wake(host->mmc, true);
 
-- 
2.45.2