diff --git a/drivers/power/regulator/gpio-regulator.c b/drivers/power/regulator/gpio-regulator.c
index 5bf4563916..c73c2ae12a 100644
--- a/drivers/power/regulator/gpio-regulator.c
+++ b/drivers/power/regulator/gpio-regulator.c
@@ -29,8 +29,7 @@ static int gpio_regulator_ofdata_to_platdata(struct udevice *dev)
 	struct dm_regulator_uclass_platdata *uc_pdata;
 	struct gpio_regulator_platdata *dev_pdata;
 	struct gpio_desc *gpio;
-	const void *blob = gd->fdt_blob;
-	int ret, count, i, j;
+	int ret, len, i, j;
 	u32 states_array[8];
 
 	dev_pdata = dev_get_platdata(dev);
@@ -53,15 +52,17 @@ static int gpio_regulator_ofdata_to_platdata(struct udevice *dev)
 	if (ret)
 		debug("regulator gpio - not found! Error: %d", ret);
 
-	blob = dev_read_prop(dev, "states", &count);
-	if (!blob)
-		return -EINVAL;
+	len = dev_read_size(dev, "states");
+	if (len < 0)
+		return len;
 
-	ret = dev_read_u32_array(dev, "states", states_array, count / 4);
+	len /= sizeof(fdt32_t);
+
+	ret = dev_read_u32_array(dev, "states", states_array, len);
 	if (ret)
 		return -EINVAL;
 
-	for (i = 0, j = 0; i < count / 4; i += 2) {
+	for (i = 0, j = 0; i < len; i += 2) {
 		dev_pdata->voltages[j] = states_array[i];
 		dev_pdata->states[j] = states_array[i + 1];
 		j++;