linux-kernel - [PATCH v6 2/2] arm64: dts: qcom: Add display support for QCS615 RIDE board

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Message-Id: <20250818-add-display-support-for-qcs615-platform-v6-2-62aad5138a78@oss.qualcomm.com>
Date: Mon, 18 Aug 2025 12:39:21 +0800
From: Fange Zhang <fange.zhang@....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, Li Liu <quic_lliu6@...cinc.com>,
        Fange Zhang <fange.zhang@....qualcomm.com>,
        dmitry.baryshkov@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        xiangxu.yin@....qualcomm.com
Subject: [PATCH v6 2/2] arm64: dts: qcom: Add display support for QCS615
 RIDE board

From: Li Liu <quic_lliu6@...cinc.com>

Add display MDSS and DSI configuration for QCS615 RIDE board.
QCS615 has a DP port, and DP support will be added in a later patch.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Signed-off-by: Li Liu <quic_lliu6@...cinc.com>
Signed-off-by: Fange Zhang <fange.zhang@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs615-ride.dts | 90 ++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
index 59582d3dc4c49828ef4a0d22a1cbaba715c7ce8c..39c757b66f47579d9bc7cc5c4d703f7af4434df4 100644
--- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
@@ -39,6 +39,18 @@ xo_board_clk: xo-board-clk {
 		};
 	};
 
+	dp-dsi0-connector {
+		compatible = "dp-connector";
+		label = "DSI0";
+		type = "mini";
+
+		port {
+			dp_dsi0_connector_in: endpoint {
+				remote-endpoint = <&dsi2dp_bridge_out>;
+			};
+		};
+	};
+
 	vreg_conn_1p8: regulator-conn-1p8 {
 		compatible = "regulator-fixed";
 		regulator-name = "vreg_conn_1p8";
@@ -294,6 +306,84 @@ &gcc {
 		 <&sleep_clk>;
 };
 
+&i2c2 {
+	clock-frequency = <400000>;
+	status = "okay";
+
+	io_expander: gpio@3e {
+		compatible = "semtech,sx1509q";
+		reg = <0x3e>;
+		interrupts-extended = <&tlmm 58 IRQ_TYPE_EDGE_FALLING>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		semtech,probe-reset;
+	};
+
+	i2c-mux@77 {
+		compatible = "nxp,pca9542";
+		reg = <0x77>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			bridge@58 {
+				compatible = "analogix,anx7625";
+				reg = <0x58>;
+				interrupts-extended = <&io_expander 0 IRQ_TYPE_EDGE_FALLING>;
+				enable-gpios = <&tlmm 4 GPIO_ACTIVE_HIGH>;
+				reset-gpios = <&tlmm 5 GPIO_ACTIVE_HIGH>;
+				wakeup-source;
+
+				ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+
+					port@0 {
+						reg = <0>;
+
+						dsi2dp_bridge_in: endpoint {
+							remote-endpoint = <&mdss_dsi0_out>;
+						};
+					};
+
+					port@1 {
+						reg = <1>;
+
+						dsi2dp_bridge_out: endpoint {
+							remote-endpoint = <&dp_dsi0_connector_in>;
+						};
+					};
+				};
+			};
+		};
+	};
+};
+
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&vreg_l11a>;
+	status = "okay";
+};
+
+&mdss_dsi0_out {
+	remote-endpoint = <&dsi2dp_bridge_in>;
+	data-lanes = <0 1 2 3>;
+};
+
+&mdss_dsi0_phy {
+	vdds-supply = <&vreg_l5a>;
+	status = "okay";
+};
+
 &pcie {
 	perst-gpios = <&tlmm 101 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 100 GPIO_ACTIVE_HIGH>;

-- 
2.34.1