From: Andy Yan <andy.yan@rock-chips.com>
Date: Fri, 22 Aug 2025 06:39:54 +0000 (+0800)
Subject: arm64: dts: rockchip: Enable DP2HDMI for ROCK 5 ITX
X-Git-Tag: v6.18-rc1~147^2~47^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=07c53a9e970712b1a479dd0ec4adfe184482c22f;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: rockchip: Enable DP2HDMI for ROCK 5 ITX

The HDMI0(Port next to Headphone Jack) is driven by DP1 on rk3588
via RA620(a dp2hdmi converter).

Add related dt nodes to enable it.

Note: ROCKCHIP_VOP2_EP_DP1 is defined as 11 in dt-binding header,
but it will trigger a dtc warning like "graph node unit address
error, expected "b"" if we use it directly after endpoint, so we
use "b" instead here.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250822063959.692098-11-andyshrk@163.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
index 7de17117df7ae..bc8140883de47 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5-itx.dts
@@ -57,6 +57,31 @@
 			  "Headphone", "Headphones";
 	};
 
+	bridge {
+		compatible = "radxa,ra620";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				hdmi_bridge_in: endpoint {
+					remote-endpoint = <&dp1_out_con>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				hdmi_bridge_out: endpoint {
+					remote-endpoint = <&hdmi_con_in>;
+				};
+			};
+		};
+	};
+
 	gpio-leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
@@ -73,6 +98,17 @@
 		};
 	};
 
+	hdmi0-con {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&hdmi_bridge_out>;
+			};
+		};
+	};
+
 	hdmi1-con {
 		compatible = "hdmi-connector";
 		type = "a";
@@ -268,6 +304,24 @@
 	cpu-supply = <&vdd_cpu_lit_s0>;
 };
 
+&dp1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&dp1m0_pins>;
+};
+
+&dp1_in {
+	dp1_in_vp2: endpoint {
+		remote-endpoint = <&vp2_out_dp1>;
+	};
+};
+
+&dp1_out {
+	dp1_out_con: endpoint {
+		remote-endpoint = <&hdmi_bridge_in>;
+	};
+};
+
 &gpu {
 	mali-supply = <&vdd_gpu_s0>;
 	status = "okay";
@@ -1261,3 +1315,10 @@
 		remote-endpoint = <&hdmi1_in_vp1>;
 	};
 };
+
+&vp2 {
+	vp2_out_dp1: endpoint@b {
+		reg = <ROCKCHIP_VOP2_EP_DP1>;
+		remote-endpoint = <&dp1_in_vp2>;
+	};
+};