diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
index a1c5fdf7d68f..00d873a03cfe 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
@@ -279,6 +279,8 @@ &gpu {
 &hdmi {
 	avdd-0v9-supply = <&vdda0v9_image>;
 	avdd-1v8-supply = <&vcca1v8_image>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&hdmitx_scl &hdmitx_sda &hdmitxm1_cec>;
 	status = "okay";
 };