linux-kernel - [PATCH 6/7] arm64: zynqmp: Introduce DP port labels

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Message-ID: <99ec1532d0cce877b1d365ede9bd15a909706637.1752835502.git.michal.simek@amd.com>
Date: Fri, 18 Jul 2025 12:45:11 +0200
From: Michal Simek <michal.simek@....com>
To: <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
	<michal.simek@...inx.com>, <git@...inx.com>
CC: Conor Dooley <conor+dt@...nel.org>, Krzysztof Kozlowski
	<krzk+dt@...nel.org>, Rob Herring <robh@...nel.org>, "open list:OPEN FIRMWARE
 AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, "moderated
 list:ARM/ZYNQ ARCHITECTURE" <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 6/7] 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@....com>
---

 arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso | 10 ++++------
 arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts    | 10 ++++------
 arch/arm64/boot/dts/xilinx/zynqmp.dtsi               | 12 ++++++------
 3 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso
index 7490efea98bd..1d2b46d7949e 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-sck-kv-g-revB.dtso
@@ -112,13 +112,11 @@ &zynqmp_dpsub {
 	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>;
 	};
 };
 
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
index 7beedd730f94..cd132abf6e00 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu106-revA.dts
@@ -1042,12 +1042,10 @@ &zynqmp_dpsub {
 	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>;
 	};
 };
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index e11d282462bd..b20a560741e5 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -1319,22 +1319,22 @@ ports {
 				#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>;
 				};
 			};
-- 
2.43.0