// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/**
 * DT Overlay for RPi 7inch touchscreen panel interfaced with DSI on
 * J721E based BeagleBone AI-64 (BBAI-64) platform.
 *
 * BBAI-64: https://www.beagleboard.org/boards/beaglebone-ai-64
 * RPi DSI Panel: https://www.raspberrypi.com/products/raspberry-pi-touch-display/
 *
 * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>

#include "k3-pinctrl.h"

&{/} {
	bridge_reg: bridge-regulator {
		compatible = "regulator-fixed";
		regulator-name = "bridge-reg";
		gpio = <&display_reg 0 0>;
		vin-supply = <&display_reg>;
		enable-active-high;
	};

	panel0 {
		compatible = "raspberrypi,7inch-dsi", "simple-panel";
		backlight = <&display_reg>;
		power-supply = <&display_reg>;
		port {
			panel_in: endpoint {
				remote-endpoint = <&panel_bridge_out>;
			};
		};
	};
};

&main_pmx0 {
	dsi_main_i2c4_pins: dsi-main-i2c4-pins {
		pinctrl-single,pins = <
			J721E_IOPAD(0xa8, PIN_INPUT_PULLUP, 2) /* (AD19) PRG1_MDIO0_MDIO.I2C4_SCL */
			J721E_IOPAD(0xac, PIN_INPUT_PULLUP, 2) /* (AD18) PRG1_MDIO0_MDC.I2C4_SDA */
		>;
	};
};

&main_i2c4 {
	clock-frequency = <400000>;
	pinctrl-names = "default";
	pinctrl-0 = <&dsi_main_i2c4_pins>;
	#address-cells = <1>;
	#size-cells = <0>;

	display_reg: regulator@45 {
		compatible = "raspberrypi,7inch-touchscreen-panel-regulator";
		reg = <0x45>;
		gpio-controller;
		#gpio-cells = <2>;
	};

	touch-controller@38 {
		compatible = "edt,edt-ft5406";
		reg = <0x38>;

		touchscreen-size-x = < 800 >;
		touchscreen-size-y = < 480 >;

		vcc-supply = <&display_reg>;
		reset-gpio = <&display_reg 1 1>;

		touchscreen-inverted-x;
		touchscreen-inverted-y;
	};
};

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

	port@2 {
		reg = <2>;

		dpi2_out: endpoint {
			remote-endpoint = <&dsi0_in>;
		};
	};
};

&dphy2 {
	status = "okay";
};

&dsi0 {
	status = "okay";
	#address-cells = <1>;
	#size-cells = <0>;

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

		port@0 {
			reg = <0>;
			dsi0_out: endpoint {
				remote-endpoint = <&panel_bridge_in>;
			};
		};

		port@1 {
			reg = <1>;
			dsi0_in: endpoint {
				remote-endpoint = <&dpi2_out>;
			};
		};
	};

	bridge@0 {
		compatible = "toshiba,tc358762";
		reg = <0>;
		vddc-supply = <&bridge_reg>;
		ports {
			#address-cells = <1>;
			#size-cells = <0>;

			port@0 {
				reg = <0>;
				panel_bridge_in: endpoint {
					remote-endpoint = <&dsi0_out>;
				};
			};

			port@1 {
				reg = <1>;
				panel_bridge_out: endpoint {
					remote-endpoint = <&panel_in>;
				};
			};
		};
	};

};