ARM: dts: rockchip: Enable HDMI output for XPI-3128

Add an hdmi-connector node and enable the hdmi, display-subsystem and vop
nodes.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20231222174220.55249-30-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rockchip/rk3128-xpi-3128.dts

@@ -47,6 +47,17 @@
 		regulator-boot-on;
 	};
 
+	hdmi-connnector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_in: endpoint {
+				remote-endpoint = <&hdmi_connector_out>;
+			};
+		};
+	};
+
 	/*
 	 * This is a vbus-supply, which also supplies the GL852G usb hub,
 	 * thus has to be always-on
@@ -239,6 +250,10 @@
 	cpu-supply = <&vdd_arm>;
 };
 
+&display_subsystem {
+	status = "okay";
+};
+
 &emmc {
 	bus-width = <8>;
 	vmmc-supply = <&vcc_io>;
@@ -328,6 +343,16 @@
 	status = "okay";
 };
 
+&hdmi {
+	status = "okay";
+};
+
+&hdmi_out {
+	hdmi_connector_out: endpoint {
+		remote-endpoint = <&hdmi_connector_in>;
+	};
+};
+
 &mdio {
 	phy0: ethernet-phy@1 {
 		compatible = "ethernet-phy-ieee802.3-c22";
@@ -423,3 +448,7 @@
 &usb2phy_otg {
 	status = "okay";
 };
+
+&vop {
+	status = "okay";
+};