diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 032640aa9eb5..2df6ba05e0cd 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -3795,7 +3795,7 @@ mdss_dp0_in: endpoint {
 					port@1 {
 						reg = <1>;
 						mdss_dp0_out: endpoint {
-							data-lanes = <0 1>;
+							data-lanes = <0 1 2 3>;
 							remote-endpoint = <&usb_dp_qmpphy_dp_in>;
 						};
 					};