bpi-m2p-ov5640.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
//
// Copyright (C) 2018 Chen-Yu Tsai <wens@csie.org>
//
// Bananapi camera module based on OV5640

#ifdef __DTO_TEST__
#include <arm/sun8i-h3-bananapi-m2-plus.dts>
#else
/dts-v1/;
/plugin/;
#endif

#include <dt-bindings/clock/sun8i-h3-ccu.h>
#include <dt-bindings/gpio/gpio.h>

&{/} {
	reg_cam_avdd: cam-avdd {
		compatible = "regulator-fixed";
		regulator-name = "csi-avdd";
		regulator-min-microvolt = <2800000>;
		regulator-max-microvolt = <2800000>;
		startup-delay-us = <200>; /* 50 us + board delays */
		enable-active-high;
		gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
	};

	reg_cam_dovdd: cam-dovdd {
		compatible = "regulator-fixed";
		regulator-name = "csi-dovdd";
		regulator-min-microvolt = <2800000>;
		regulator-max-microvolt = <2800000>;
		/*
		 * This regulator also powers the pull-ups for the I2C bus.
		 * For some reason, if this is turned off, subsequent use
		 * of the I2C bus, even when turned on, does not work.
		 */
		startup-delay-us = <200>; /* 50 us + board delays */
		regulator-always-on;
		enable-active-high;
		gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
	};

	reg_cam_dvdd: cam-dvdd {
		compatible = "regulator-fixed";
		regulator-name = "csi-dvdd";
		regulator-min-microvolt = <1500000>;
		regulator-max-microvolt = <1500000>;
		startup-delay-us = <200>; /* 50 us + board delays */
		enable-active-high;
		gpio = <&pio 3 14 GPIO_ACTIVE_HIGH>; /* PD14 */
	};
};

&csi {
	status = "okay";

	port {
		/* Parallel bus endpoint */
		csi_from_ov5640: endpoint {
			remote-endpoint = <&ov5640_to_csi>;
			bus-width = <8>;
			hsync-active = <1>; /* Active high */
			vsync-active = <0>; /* Active low */
			data-active = <1>;  /* Active high */
			pclk-sample = <1>;  /* Rising */
		};
	};
};

&i2c2 {
	status = "okay";

	ov5640: camera@3c {
		compatible = "ovti,ov5640";
		reg = <0x3c>;
		pinctrl-names = "default";
		pinctrl-0 = <&csi_mclk_pin>;
		clocks = <&ccu CLK_CSI_MCLK>;
		clock-names = "xclk";

		reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>; /* PE14 */
		powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* PE15 */
		AVDD-supply = <&reg_cam_avdd>;
		DOVDD-supply = <&reg_cam_dovdd>;
		DVDD-supply = <&reg_cam_dvdd>;

		port {
			ov5640_to_csi: endpoint {
				remote-endpoint = <&csi_from_ov5640>;
				bus-width = <8>;
				data-shift = <2>;
				hsync-active = <1>; /* Active high */
				vsync-active = <0>; /* Active low */
				data-active = <1>;  /* Active high */
				pclk-sample = <1>;  /* Rising */
			};
		};
	};
};

&pio {
	csi_mclk_pin: csi-mclk {
		pins = "PE1";
		function = "csi";
	};
};