mmc: dw_mmc: Keep vqmmc-supply enable count in balance

With the commit 4fcba5d ("regulator: implement basic reference counter"), keeping regulator enablement in balance become more important. Disable vqmmc-supply before signal voltage is changed to keep regulator enable counter in balance. Signed-off-by: Jonas Karlman <[email protected]>
matwey · Aug 14, 2023 · 01b2917 · 01b2917
1 parent 9a2e9cc
commit 01b2917
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
@@ -509,6 +509,10 @@ static int dwmci_set_ios(struct mmc *mmc)
 	if (mmc->vqmmc_supply) {
 		int ret;
 
+		ret = regulator_set_enable_if_allowed(mmc->vqmmc_supply, false);
+		if (ret)
+			return ret;
+
 		if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180)
 			regulator_set_value(mmc->vqmmc_supply, 1800000);
 		else