linux-kernel - [PATCH 1/2] arm64: dts: ti: k3-j721e-sk: Enable DisplayPort

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Date:   Wed, 27 Apr 2022 21:22:31 +0530
From:   Rahul T R <r-ravikumar@...com>
To:     <nm@...com>
CC:     <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <tomi.valkeinen@...asonboard.com>,
        <laurent.pinchart@...asonboard.com>, <kishon@...com>,
        <r-ravikumar@...com>
Subject: [PATCH 1/2] arm64: dts: ti: k3-j721e-sk: Enable DisplayPort

Add the endpoint nodes to describe connection from
DSS => MHDP => DisplayPort connector.

Signed-off-by: Rahul T R <r-ravikumar@...com>
---
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 45 +++++++++++++++++++++++---
 1 file changed, 41 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 98177a20b45f..07b1e40fbc47 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -213,6 +213,18 @@
 		enable-active-high;
 	};
 
+	dp0: connector {
+		compatible = "dp-connector";
+		label = "DP0";
+		type = "full-size";
+		dp-pwr-supply = <&dp_pwr_3v3>;
+
+		port {
+			dp_connector_in: endpoint {
+				remote-endpoint = <&dp0_out>;
+			};
+		};
+	};
 };
 
 &main_pmx0 {
@@ -638,6 +650,8 @@
 &mhdp {
 	phys = <&torrent_phy_dp>;
 	phy-names = "dpphy";
+	pinctrl-names = "default";
+	pinctrl-0 = <&dp0_pins_default>;
 };
 
 &usbss0 {
@@ -718,6 +732,33 @@
 				 <&k3_clks 152 18>;	/* DPI1_EXT_CLKSEL_OUT0 */
 };
 
+&dss_ports {
+	port {
+		dpi0_out: endpoint {
+			remote-endpoint = <&dp0_in>;
+		};
+	};
+};
+
+&dp0_ports {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@0 {
+		reg = <0>;
+		dp0_in: endpoint {
+			remote-endpoint = <&dpi0_out>;
+		};
+	};
+
+	port@4 {
+		reg = <4>;
+		dp0_out: endpoint {
+			remote-endpoint = <&dp_connector_in>;
+		};
+	};
+};
+
 &mcasp0 {
 	/* Unused */
 	status = "disabled";
@@ -852,10 +893,6 @@
 	status = "disabled";
 };
 
-&dss {
-	status = "disabled";
-};
-
 &icssg0_mdio {
 	status = "disabled";
 };
-- 
2.17.1