diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index aa5d7dca3432..8d68775365a3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1870,6 +1870,7 @@ mipi_dsi1: mipi@ff968000 {
 		rockchip,grf = <&grf>;
 		#address-cells = <1>;
 		#size-cells = <0>;
+		#phy-cells = <0>;
 		status = "disabled";
 
 		ports {