arm64: zynqmp: Introduce DP port labels

Describe every port by unique label for easier wiring with DT overlays.
And also labels help to describe which port is used for what.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/99ec1532d0cce877b1d365ede9bd15a909706637.1752835502.git.michal.simek@amd.com

arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso

@@ -112,13 +112,11 @@
 	phy-names = "dp-phy0", "dp-phy1";
 	phys = <&psgtr 1 PHY_TYPE_DP 0 0>, <&psgtr 0 PHY_TYPE_DP 1 0>;
 	assigned-clock-rates = <27000000>, <25000000>, <300000000>;
+};
 
-	ports {
-		port@5 {
-			dpsub_dp_out: endpoint {
-				remote-endpoint = <&dpcon_in>;
-			};
-		};
+&out_dp {
+	dpsub_dp_out: endpoint {
+		remote-endpoint = <&dpcon_in>;
 	};
 };
 

arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts

@@ -1042,12 +1042,10 @@
 	phy-names = "dp-phy0", "dp-phy1";
 	phys = <&psgtr 1 PHY_TYPE_DP 0 3>,
 	       <&psgtr 0 PHY_TYPE_DP 1 3>;
+};
 
-	ports {
-		port@5 {
-			dpsub_dp_out: endpoint {
-				remote-endpoint = <&dpcon_in>;
-			};
-		};
+&out_dp {
+	dpsub_dp_out: endpoint {
+		remote-endpoint = <&dpcon_in>;
 	};
 };

arch/arm64/boot/dts/xilinx/zynqmp.dtsi

@@ -1319,22 +1319,22 @@
 				#address-cells = <1>;
 				#size-cells = <0>;
 
-				port@0 {
+				live_video: port@0 {
 					reg = <0>;
 				};
-				port@1 {
+				live_gfx: port@1 {
 					reg = <1>;
 				};
-				port@2 {
+				live_audio: port@2 {
 					reg = <2>;
 				};
-				port@3 {
+				out_video: port@3 {
 					reg = <3>;
 				};
-				port@4 {
+				out_audio: port@4 {
 					reg = <4>;
 				};
-				port@5 {
+				out_dp: port@5 {
 					reg = <5>;
 				};
 			};