Commit 38ef5be6 authored by Marek Vasut's avatar Marek Vasut Committed by Geert Uytterhoeven
Browse files

arm64: dts: renesas: sparrow-hawk: Add overlay for RPi Display 2 



Add a DT overlay to bind the Raspberry Pi Display 2 (both 5" and 7"
variants), on the Retronix R-Car V4H Sparrow Hawk board.  All of display
output, touch controller, and backlight control have been tested.

Signed-off-by: default avatarMarek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250904202838.172579-1-marek.vasut+renesas@mailbox.org


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent f1606883

arch/arm64/boot/dts/renesas/Makefile

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@@ -111,6 +111,12 @@ dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-camera-j2-imx462.dtb 
dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-fan-pwm.dtbo

r8a779g3-sparrow-hawk-fan-pwm-dtbs := r8a779g3-sparrow-hawk.dtb r8a779g3-sparrow-hawk-fan-pwm.dtbo

dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-fan-pwm.dtb

dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-5in.dtbo

r8a779g3-sparrow-hawk-rpi-display-2-5in-dtbs := r8a779g3-sparrow-hawk.dtb r8a779g3-sparrow-hawk-rpi-display-2-5in.dtbo

dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-5in.dtb

dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-7in.dtbo

r8a779g3-sparrow-hawk-rpi-display-2-7in-dtbs := r8a779g3-sparrow-hawk.dtb r8a779g3-sparrow-hawk-rpi-display-2-7in.dtbo

dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-sparrow-hawk-rpi-display-2-7in.dtb



dtb-$(CONFIG_ARCH_R8A779G0) += r8a779g3-white-hawk-single.dtb

r8a779g3-white-hawk-single-ard-audio-da7212-dtbs := r8a779g3-white-hawk-single.dtb white-hawk-ard-audio-da7212.dtbo

arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2-5in.dtso

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

/*

 * Device Tree Overlay for the RPi Display 2 5" MIPI DSI panel connected

 * to J4:DSI on R-Car V4H ES3.0 Sparrow Hawk board

 *

 * Copyright (C) 2025 Marek Vasut <marek.vasut+renesas@mailbox.org>

 */



#include "r8a779g3-sparrow-hawk-rpi-display-2.dtsi"



&panel {

	compatible = "raspberrypi,dsi-5inch", "ilitek,ili9881c";

};

arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2-7in.dtso

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

/*

 * Device Tree Overlay for the RPi Display 2 7" MIPI DSI panel connected

 * to J4:DSI on R-Car V4H ES3.0 Sparrow Hawk board

 *

 * Copyright (C) 2025 Marek Vasut <marek.vasut+renesas@mailbox.org>

 */



#include "r8a779g3-sparrow-hawk-rpi-display-2.dtsi"



&panel {

	compatible = "raspberrypi,dsi-7inch", "ilitek,ili9881c";

};

arch/arm64/boot/dts/renesas/r8a779g3-sparrow-hawk-rpi-display-2.dtsi

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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

/*

 * Device Tree Overlay for the RPi Display 2 MIPI DSI panel connected

 * to J4:DSI on R-Car V4H ES3.0 Sparrow Hawk board

 *

 * Copyright (C) 2025 Marek Vasut <marek.vasut+renesas@mailbox.org>

 */



/dts-v1/;

/plugin/;



#include <dt-bindings/gpio/gpio.h>



&{/} {

	display_bl: backlight {

		compatible = "pwm-backlight";

		pwms = <&mcu 0 255 0>;

	};



	reg_display: regulator-display {

		compatible = "regulator-fixed";

		regulator-name = "rpi-display";

		regulator-min-microvolt = <5000000>;

		regulator-max-microvolt = <5000000>;

	};



	reg_dsi_touch: regulator-dsi-touch {

		compatible = "regulator-fixed";

		gpio = <&mcu 1 GPIO_ACTIVE_HIGH>;

		regulator-name = "rpi-touch";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		startup-delay-us = <50000>;

		enable-active-high;

	};

};



&i2c0_mux3 {

	#address-cells = <1>;

	#size-cells = <0>;



	mcu: gpio@45 {

		compatible = "raspberrypi,touchscreen-panel-regulator-v2";

		reg = <0x45>;

		gpio-controller;

		#gpio-cells = <2>;

		#pwm-cells = <3>;

	};



	touchscreen@5d {

		compatible = "goodix,gt911";

		reg = <0x5d>;

		AVDD28-supply = <&reg_dsi_touch>;

		touchscreen-size-x = <720>;

		touchscreen-size-y = <1280>;

	};

};



&dsi0 {

	#address-cells = <1>;

	#size-cells = <0>;

	status = "okay";



	ports {

		#address-cells = <1>;

		#size-cells = <0>;



		port@1 {

			reg = <1>;



			dsi0_out: endpoint {

				remote-endpoint = <&panel_in>;

				data-lanes = <1 2>;

			};

		};

	};



	panel: panel@0 {

		reg = <0>;

		backlight = <&display_bl>;

		power-supply = <&reg_display>;

		reset-gpios = <&mcu 0 GPIO_ACTIVE_LOW>;



		port {

			panel_in: endpoint {

				remote-endpoint = <&dsi0_out>;

			};

		};

	};

};