From f54b2d81a7255f6fbb92cb738c5e615d5d3c0d92 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Date: Tue, 17 Mar 2026 18:08:22 +0100
Subject: [PATCH] arm64: dts: qcom: sm8750-mtp: Enable DisplayPort over USB

Hook up DisplayPort parts over Type-C USB on MTP8750.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260317-sm8750-display-dts-v5-4-fb53371e251c@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/sm8750-mtp.dts | 8 ++++++++
 arch/arm64/boot/dts/qcom/sm8750.dtsi    | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
index 6107a4ed2c80..3837f6785320 100644
--- a/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sm8750-mtp.dts
@@ -987,6 +987,14 @@ &mdss {
 	status = "okay";
 };
 
+&mdss_dp0 {
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
 &mdss_dsi0 {
 	vdda-supply = <&vreg_l3g_1p2>;
 
diff --git a/arch/arm64/boot/dts/qcom/sm8750.dtsi b/arch/arm64/boot/dts/qcom/sm8750.dtsi
index 480a7a827d7d..74b29db27b8e 100644
--- a/arch/arm64/boot/dts/qcom/sm8750.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8750.dtsi
@@ -2789,6 +2789,7 @@ port@2 {
 					reg = <2>;
 
 					usb_dp_qmpphy_dp_in: endpoint {
+						remote-endpoint = <&mdss_dp0_out>;
 					};
 				};
 			};
@@ -3398,6 +3399,7 @@ port@1 {
 
 						mdss_dp0_out: endpoint {
 							data-lanes = <0 1 2 3>;
+							remote-endpoint = <&usb_dp_qmpphy_dp_in>;
 						};
 					};
 				};