diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index ca7d52daa8fb..b577f3e41811 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -569,6 +569,7 @@ tsadc: tsadc@ff280000 {
 		pinctrl-1 = <&otp_out>;
 		pinctrl-2 = <&otp_gpio>;
 		#thermal-sensor-cells = <1>;
+		rockchip,grf = <&grf>;
 		rockchip,hw-tshut-temp = <95000>;
 		status = "disabled";
 	};