[6/7] arm64: dts: ti: k3-j721s2-common-proc-board: Enable DisplayPort-1

Commit Message

Jayesh Choudhary April 11, 2025, 10:51 a.m. UTC

Enable DSI display for J721S2 EVM.

Add the endpoint nodes to describe connection from:
DSS => DSI Bridge => DSI to eDP bridge => DisplayPort-1

Set status for all required nodes for DisplayPort-1 as 'okay'.

Signed-off-by: Jayesh Choudhary <[e-mail]>
---
 .../dts/ti/k3-j721s2-common-proc-board.dts    | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)

Patch

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
index f691ae4c19e6..15a7d9b813d3 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
@@ -93,6 +93,29 @@  vdd_sd_dv: gpio-regulator-TLV71033 {
 			 <3300000 0x1>;
 	};
 
+	dp1_pwr_3v3: regulator-dp1-prw {
+		compatible = "regulator-fixed";
+		regulator-name = "dp1-pwr";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&exp4 1 GPIO_ACTIVE_HIGH>; /* P1 - DP1_PWR_SW_EN */
+		enable-active-high;
+		regulator-always-on;
+	};
+
+	dp1: connector-dp1 {
+		compatible = "dp-connector";
+		label = "DP1";
+		type = "full-size";
+		dp-pwr-supply = <&dp1_pwr_3v3>;
+
+		port {
+			dp1_connector_in: endpoint {
+				remote-endpoint = <&dp1_out>;
+			};
+		};
+	};
+
 	transceiver1: can-phy1 {
 		compatible = "ti,tcan1043";
 		#phy-cells = <0>;
@@ -560,3 +583,75 @@  &main_mcan5 {
 	pinctrl-0 = <&main_mcan5_pins_default>;
 	phys = <&transceiver4>;
 };
+
+&dss {
+	/*
+	 * These clock assignments are chosen to enable the following outputs:
+	 *
+	 * VP0 - DisplayPort SST
+	 * VP1 - DPI0
+	 * VP2 - DSI
+	 * VP3 - DPI1
+	 */
+	status = "okay";
+	assigned-clocks = <&k3_clks 158 2>,
+			  <&k3_clks 158 5>,
+			  <&k3_clks 158 14>,
+			  <&k3_clks 158 18>;
+	assigned-clock-parents = <&k3_clks 158 3>,
+				 <&k3_clks 158 7>,
+				 <&k3_clks 158 16>,
+				 <&k3_clks 158 22>;
+};
+
+&dss_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@2 {
+		reg = <2>;
+		dpi2_out: endpoint {
+			remote-endpoint = <&dsi0_in>;
+		};
+	};
+};
+
+&dsi0_ports {
+	port@0 {
+		reg = <0>;
+		dsi0_out: endpoint {
+			remote-endpoint = <&dp1_in>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+		dsi0_in: endpoint {
+			remote-endpoint = <&dpi2_out>;
+		};
+	};
+};
+
+&dsi_edp_bridge_ports {
+	port@0 {
+		reg = <0>;
+		dp1_in: endpoint {
+			remote-endpoint = <&dsi0_out>;
+		};
+	};
+
+	port@1 {
+		reg = <1>;
+		dp1_out: endpoint {
+			remote-endpoint = <&dp1_connector_in>;
+		};
+	};
+};
+
+&dphy_tx0 {
+	status = "okay";
+};
+
+&dsi0 {
+	status = "okay";
+};