arm64: dts: ti: k3-am62a-main: Add node for Display SubSystem (DSS)

Add Display SubSystem (DSS) DT node for the AM62A7 SoC.

The DSS supports one each of video pipeline (vid) and video-lite
pipeline (vidl1). The video port 1 (vp1) is tied-off in AM62A SoC, but
the pipeline remains active. The video port 2 (vp2) outputs the DPI
signals. Both the video ports are connected to the pipelines via 2
identical overlay managers (ovr1 and ovr2).
Signed-off-by: Aradhya Bhatia <a-bhatia1@ti.com>
Link: https://lore.kernel.org/r/20240201125452.1920623-2-a-bhatia1@ti.comSigned-off-by: Vignesh Raghavendra <vigneshr@ti.com>

arch/arm64/boot/dts/ti/k3-am62a-main.dtsi

@@ -985,4 +985,29 @@ dphy0: phy@30110000 {
 		power-domains = <&k3_pds 185 TI_SCI_PD_EXCLUSIVE>;
 		status = "disabled";
 	};
+
+	dss: dss@30200000 {
+		compatible = "ti,am62a7-dss";
+		reg = <0x00 0x30200000 0x00 0x1000>, /* common */
+		      <0x00 0x30202000 0x00 0x1000>, /* vidl1 */
+		      <0x00 0x30206000 0x00 0x1000>, /* vid */
+		      <0x00 0x30207000 0x00 0x1000>, /* ovr1 */
+		      <0x00 0x30208000 0x00 0x1000>, /* ovr2 */
+		      <0x00 0x3020a000 0x00 0x1000>, /* vp1: Tied OFF in the SoC */
+		      <0x00 0x3020b000 0x00 0x1000>; /* vp2: Used as DPI Out */
+		reg-names = "common", "vidl1", "vid",
+			    "ovr1", "ovr2", "vp1", "vp2";
+		power-domains = <&k3_pds 186 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 186 6>,
+			 <&k3_clks 186 0>,
+			 <&k3_clks 186 2>;
+		clock-names = "fck", "vp1", "vp2";
+		interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+
+		dss_ports: ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };