diff --git a/drivers/leds/leds-sun50i-a100.c b/drivers/leds/leds-sun50i-a100.c
index 62d21c3..119eff9 100644
--- a/drivers/leds/leds-sun50i-a100.c
+++ b/drivers/leds/leds-sun50i-a100.c
@@ -252,18 +252,16 @@ static int sun50i_a100_ledc_parse_format(struct device *dev,
 					 struct sun50i_a100_ledc *priv)
 {
 	const char *format = "grb";
-	u32 i;
+	int i;
 
 	device_property_read_string(dev, "allwinner,pixel-format", &format);
 
-	for (i = 0; i < ARRAY_SIZE(sun50i_a100_ledc_formats); i++) {
-		if (!strcmp(format, sun50i_a100_ledc_formats[i])) {
-			priv->format = i;
-			return 0;
-		}
-	}
+	i = match_string(sun50i_a100_ledc_formats, ARRAY_SIZE(sun50i_a100_ledc_formats), format);
+	if (i < 0)
+		return dev_err_probe(dev, i, "Bad pixel format '%s'\n", format);
 
-	return dev_err_probe(dev, -EINVAL, "Bad pixel format '%s'\n", format);
+	priv->format = i;
+	return 0;
 }
 
 static void sun50i_a100_ledc_set_format(struct sun50i_a100_ledc *priv)