// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * Device Tree Overlay for Olimex MIPI-HDMI adapter connected to J4:DSI
 * on R-Car V4H ES3.0 Sparrow Hawk board
 *
 * Copyright (C) 2026 Scott Murray <scott.murray@konsulko.com>
 */

/dts-v1/;
/plugin/;

&{/} {
	hdmi-connector {
		compatible = "hdmi-connector";
		label = "HDMI1";
		type = "a";
		ddc-i2c-bus = <&i2c0_mux3>;

		port {
			hdmi_connector_in: endpoint {
				remote-endpoint = <&lt8912b_out>;
			};
		};
	};

	reg_vr1: regulator-vr1 {
		compatible = "regulator-fixed";
		regulator-name = "VR1-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
		vin-supply = <&reg_3p3v>;
	};
};

&i2c0_mux3 {
	#address-cells = <1>;
	#size-cells = <0>;

	hdmi-bridge@48 {
		compatible = "lontium,lt8912b";
		reg = <0x48>;
		vcchdmipll-supply = <&reg_vr1>;
		vcchdmitx-supply = <&reg_vr1>;
		vcclvdspll-supply = <&reg_vr1>;
		vcclvdstx-supply = <&reg_vr1>;
		vccmipirx-supply = <&reg_vr1>;
		vccsysclk-supply = <&reg_vr1>;
		vdd-supply = <&reg_vr1>;

		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;

				hdmi_out_in: endpoint {
					data-lanes = <1 2>;
					remote-endpoint = <&dsi0_out>;
				};
			};

			port@1 {
				reg = <1>;

				lt8912b_out: endpoint {
					remote-endpoint = <&hdmi_connector_in>;
				};
			};
		};
	};
};

&dsi0 {
	status = "okay";

	ports {
		#address-cells = <1>;
		#size-cells = <0>;

		port@1 {
			reg = <1>;

			dsi0_out: endpoint {
				remote-endpoint = <&hdmi_out_in>;
				data-lanes = <1 2>;
			};
		};
	};
};