diff --git a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
index ca5d0c4b12a5..e78452c4b19c 100644
--- a/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
+++ b/arch/arm/boot/dts/sun5i-reference-design-tablet.dtsi
@@ -92,6 +92,10 @@ pcf8563: rtc@51 {
 
 #include "axp209.dtsi"
 
+&lradc {
+	vref-supply = <&reg_ldo2>;
+};
+
 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_q8>;