diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 33ca197860b3..7bebf9ce6271 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -455,7 +455,8 @@ static int as3722_sd_set_mode(struct regulator_dev *rdev,
 	switch (mode) {
 	case REGULATOR_MODE_FAST:
 		val = as3722_reg_lookup[id].mode_mask;
-	case REGULATOR_MODE_NORMAL: /* fall down */
+		fallthrough;
+	case REGULATOR_MODE_NORMAL:
 		break;
 	default:
 		return -EINVAL;