diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
index 4c7ebb1c5d2d..19a648add355 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts
@@ -11,6 +11,22 @@
 / {
 	model = "Radxa ROCK Pi 4C";
 	compatible = "radxa,rockpi4c", "radxa,rockpi4", "rockchip,rk3399";
+
+	virtual_pd: virtual-pd {
+		compatible = "linux,extcon-usbc-virtual-pd";
+		det-gpios = <&gpio4 RK_PD1 GPIO_ACTIVE_LOW>;	/* DP_HPD */
+		vpd-data-role = "display-port";
+		vpd-super-speed;
+	};
+};
+
+&cdn_dp {
+	extcon = <&virtual_pd>;
+	status = "okay";
+};
+
+&tcphy0 {
+	extcon = <&virtual_pd>;
 };
 
 &sdio0 {