diff --git a/drivers/video/pwm_backlight.c b/drivers/video/pwm_backlight.c
index aa0e292..1c747d9 100644
--- a/drivers/video/pwm_backlight.c
+++ b/drivers/video/pwm_backlight.c
@@ -100,8 +100,8 @@
 			plat = dev_get_uclass_plat(priv->reg);
 			log_debug("Enable '%s', regulator '%s'/'%s'\n",
 				  dev->name, priv->reg->name, plat->name);
-			ret = regulator_set_enable(priv->reg, true);
-			if (ret) {
+			ret = regulator_set_enable_if_allowed(priv->reg, true);
+			if (ret && ret != -ENOSYS) {
 				log_debug("Cannot enable regulator for PWM '%s'\n",
 					  dev->name);
 				return log_ret(ret);
@@ -181,11 +181,10 @@
 	}
 	if (disable) {
 		dm_gpio_set_value(&priv->enable, 0);
-		if (priv->reg) {
-			ret = regulator_set_enable(priv->reg, false);
-			if (ret)
-				return log_ret(ret);
-		}
+		ret = regulator_set_enable_if_allowed(priv->reg, false);
+		if (ret && ret != -ENOSYS)
+			return log_ret(ret);
+
 		priv->enabled = false;
 	}