linux-kernel - [PATCH v7 2/2] arm64: dts: qcom: qcs8300-ride: Enable Display Port

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Message-Id: <20251117-dts_qcs8300-v7-2-bf42d39e7828@oss.qualcomm.com>
Date: Mon, 17 Nov 2025 14:49:33 +0800
From: Yongxing Mou <yongxing.mou@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Yongxing Mou <yongxing.mou@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Subject: [PATCH v7 2/2] arm64: dts: qcom: qcs8300-ride: Enable Display Port

Enable DPTX0 along with their corresponding PHYs for
qcs8300-ride platform.

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Signed-off-by: Yongxing Mou <yongxing.mou@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 42 +++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 9bcb869dd270..4a8ac26846c6 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -24,6 +24,18 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	dp0-connector {
+		compatible = "dp-connector";
+		label = "DP0";
+		type = "full-size";
+
+		port {
+			dp0_connector_in: endpoint {
+				remote-endpoint = <&mdss_dp0_out>;
+			};
+		};
+	};
+
 	regulator-usb2-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "USB2_VBUS";
@@ -317,6 +329,30 @@ &iris {
 	status = "okay";
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dp0 {
+	pinctrl-0 = <&dp_hot_plug_det>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
+
+&mdss_dp0_out {
+	data-lanes = <0 1 2 3>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+	remote-endpoint = <&dp0_connector_in>;
+};
+
+&mdss_dp0_phy {
+	vdda-phy-supply = <&vreg_l5a>;
+	vdda-pll-supply = <&vreg_l4a>;
+
+	status = "okay";
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -377,6 +413,12 @@ ethernet0_mdio: ethernet0-mdio-pins {
 			bias-pull-up;
 		};
 	};
+
+	dp_hot_plug_det: dp-hot-plug-det-state {
+		pins = "gpio94";
+		function = "edp0_hot";
+		bias-disable;
+	};
 };
 
 &uart7 {

-- 
2.43.0