// SPDX-License-Identifier: GPL-2.0
/dts-v1/;

#include "jz4770.dtsi"
#include <dt-bindings/clock/ingenic,tcu.h>

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/iio/adc/ingenic,adc.h>
#include <dt-bindings/input/input.h>

/ {
	compatible = "gcw,zero", "ingenic,jz4770";
	model = "GCW Zero";

	aliases {
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
	};

	memory: memory {
		device_type = "memory";
		reg = <0x0 0x10000000>,
		      <0x30000000 0x10000000>;
	};

	chosen {
		stdout-path = "serial2:57600n8";
	};

	vcc: regulator@0 {
		compatible = "regulator-fixed";
		regulator-name = "vcc";

		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-always-on;
	};

	mmc1_power: regulator@1 {
		compatible = "regulator-fixed";
		regulator-name = "mmc1_vcc";
		gpio = <&gpe 9 0>;

		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		vin-supply = <&vcc>;
	};

	headphones_amp: analog-amplifier@0 {
		compatible = "simple-audio-amplifier";
		enable-gpios = <&gpf 3 GPIO_ACTIVE_LOW>;
		enable-delay-ms = <50>;

		VCC-supply = <&ldo5>;
		sound-name-prefix = "Headphones Amp";
	};

	speaker_amp: analog-amplifier@1 {
		compatible = "simple-audio-amplifier";
		enable-gpios = <&gpf 20 GPIO_ACTIVE_HIGH>;

		VCC-supply = <&ldo5>;
		sound-name-prefix = "Speaker Amp";
	};

	sound {
		compatible = "simple-audio-card";

		simple-audio-card,name = "gcw0-audio";
		simple-audio-card,format = "i2s";

		simple-audio-card,widgets =
			"Speaker", "Speaker",
			"Headphone", "Headphones",
			"Line", "FM Radio",
			"Microphone", "Built-in Mic";
		simple-audio-card,routing =
			"Headphones Amp INL", "LHPOUT",
			"Headphones Amp INR", "RHPOUT",
			"Headphones", "Headphones Amp OUTL",
			"Headphones", "Headphones Amp OUTR",
			"Speaker Amp INL", "LOUT",
			"Speaker Amp INR", "ROUT",
			"Speaker", "Speaker Amp OUTL",
			"Speaker", "Speaker Amp OUTR",
			"LLINEIN", "FM Radio",
			"RLINEIN", "FM Radio",
			"Built-in Mic", "MICBIAS",
			"MIC1P", "Built-in Mic",
			"MIC1N", "Built-in Mic";
		simple-audio-card,pin-switches = "Speaker", "Headphones";

		simple-audio-card,hp-det-gpio = <&gpf 21 GPIO_ACTIVE_HIGH>;
		simple-audio-card,aux-devs = <&speaker_amp>, <&headphones_amp>;

		simple-audio-card,bitclock-master = <&dai_codec>;
		simple-audio-card,frame-master = <&dai_codec>;

		dai_cpu: simple-audio-card,cpu {
			sound-dai = <&aic>;
		};

		dai_codec: simple-audio-card,codec {
			sound-dai = <&codec>;
		};
	};

	rumble {
		compatible = "pwm-vibrator";
		pwms = <&pwm 4 2000000 0>;
		pwm-names = "enable";

		pinctrl-names = "default";
		pinctrl-0 = <&pins_pwm4>;
	};

	backlight: backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm 1 40000 0>;
		power-supply = <&vcc>;

		brightness-levels = <0 16 32 48 64 80 96 112 128
				     144 160 176 192 208 224 240 255>;
		default-brightness-level = <12>;

		pinctrl-names = "default";
		pinctrl-0 = <&pins_pwm1>;
	};

	gpio-keys {
		compatible = "gpio-keys";
		#address-cells = <1>;
		#size-cells = <0>;

		autorepeat;

		button@0 {
			label = "D-pad up";
			linux,code = <KEY_UP>;
			linux,can-disable;
			gpios = <&gpe 21 GPIO_ACTIVE_LOW>;
		};

		button@1 {
			label = "D-pad down";
			linux,code = <KEY_DOWN>;
			linux,can-disable;
			gpios = <&gpe 25 GPIO_ACTIVE_LOW>;
		};

		button@2 {
			label = "D-pad left";
			linux,code = <KEY_LEFT>;
			linux,can-disable;
			gpios = <&gpe 23 GPIO_ACTIVE_LOW>;
		};

		button@3 {
			label = "D-pad right";
			linux,code = <KEY_RIGHT>;
			linux,can-disable;
			gpios = <&gpe 24 GPIO_ACTIVE_LOW>;
		};

		button@4 {
			label = "Button A";
			linux,code = <KEY_LEFTCTRL>;
			linux,can-disable;
			gpios = <&gpe 29 GPIO_ACTIVE_LOW>;
		};

		button@5 {
			label = "Button B";
			linux,code = <KEY_LEFTALT>;
			linux,can-disable;
			gpios = <&gpe 20 GPIO_ACTIVE_LOW>;
		};

		button@6 {
			label = "Button Y";
			linux,code = <KEY_SPACE>;
			linux,can-disable;
			gpios = <&gpe 27 GPIO_ACTIVE_LOW>;
		};

		button@7 {
			label = "Button X";
			linux,code = <KEY_LEFTSHIFT>;
			linux,can-disable;
			gpios = <&gpe 28 GPIO_ACTIVE_LOW>;
		};

		button@8 {
			label = "Left shoulder button";
			linux,code = <KEY_TAB>;
			linux,can-disable;
			gpios = <&gpb 20 GPIO_ACTIVE_LOW>;
		};

		button@9 {
			label = "Right shoulder button";
			linux,code = <KEY_BACKSPACE>;
			linux,can-disable;
			gpios = <&gpe 26 GPIO_ACTIVE_LOW>;
		};

		button@10 {
			label = "Start button";
			linux,code = <KEY_ENTER>;
			linux,can-disable;
			gpios = <&gpb 21 GPIO_ACTIVE_LOW>;
		};

		button@11 {
			label = "Select button";
			linux,code = <KEY_ESC>;
			linux,can-disable;
			/*
			 * This is the only button that is active high,
			 * since it doubles as BOOT_SEL1.
			 */
			gpios = <&gpd 18 GPIO_ACTIVE_HIGH>;
		};

		button@12 {
			label = "Power slider";
			linux,code = <KEY_POWER>;
			linux,can-disable;
			gpios = <&gpa 30 GPIO_ACTIVE_LOW>;
			wakeup-source;
		};

		button@13 {
			label = "Power hold";
			linux,code = <KEY_PAUSE>;
			linux,can-disable;
			gpios = <&gpf 11 GPIO_ACTIVE_LOW>;
		};
	};

	i2c3: i2c-controller@3 {
		compatible = "i2c-gpio";
		#address-cells = <1>;
		#size-cells = <0>;

		sda-gpios = <&gpd 5 GPIO_ACTIVE_HIGH>;
		scl-gpios = <&gpd 4 GPIO_ACTIVE_HIGH>;
		i2c-gpio,delay-us = <2>; /* 250 kHz */

		act8600: pmic@5a {
			compatible = "active-semi,act8600";
			reg = <0x5a>;

			regulators {
				/* USB OTG */
				otg_vbus: SUDCDC_REG4 {
					/*
					 * 5.3V instead of 5.0V to compensate
					 * for the voltage drop of a diode
					 * between the regulator and the
					 * connector.
					 */
					regulator-min-microvolt = <5300000>;
					regulator-max-microvolt = <5300000>;
					inl-supply = <&vcc>;
				};

				/*
				 * When this is off, there is no sound, but also
				 * no USB networking.
				 */
				ldo5: LDO5 {
					regulator-min-microvolt = <2500000>;
					regulator-max-microvolt = <2500000>;
					inl-supply = <&vcc>;
				};

				/* LCD panel and FM radio */
				ldo6: LDO6 {
					regulator-min-microvolt = <3300000>;
					regulator-max-microvolt = <3300000>;
					inl-supply = <&vcc>;
				};

				/* ??? */
				LDO7 {
					regulator-min-microvolt = <3300000>;
					regulator-max-microvolt = <3300000>;
					/*regulator-always-on;*/
					inl-supply = <&vcc>;
				};

				/*
				 * The colors on the LCD are wrong when this is
				 * off. Which is strange, since the LCD panel
				 * data sheet only mentions a 3.3V input.
				 */
				LDO8 {
					regulator-min-microvolt = <1800000>;
					regulator-max-microvolt = <1800000>;
					regulator-always-on;
					inl-supply = <&vcc>;
				};

				/* RTC fixed 3.3V */
				LDO_REG9 {
					regulator-min-microvolt = <3300000>;
					regulator-max-microvolt = <3300000>;
					regulator-always-on;
					inl-supply = <&vcc>;
				};

				/* Unused fixed 1.2V */
				LDO_REG10 {
					inl-supply = <&vcc>;
				};
			};
		};
	};

	leds {
		compatible = "gpio-leds";

		led {
			gpios = <&gpb 30 GPIO_ACTIVE_LOW>;
			default-state = "on";
		};
	};

	spi {
		compatible = "spi-gpio";
		#address-cells = <1>;
		#size-cells = <0>;

		sck-gpios = <&gpe 15 GPIO_ACTIVE_HIGH>;
		mosi-gpios = <&gpe 17 GPIO_ACTIVE_HIGH>;
		cs-gpios = <&gpe 16 GPIO_ACTIVE_HIGH>;
		num-chipselects = <1>;

		nt39016@0 {
			compatible = "kingdisplay,kd035g6-54nt";
			reg = <0>;

			spi-max-frequency = <3125000>;
			spi-3wire;
			spi-cs-high;

			reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;

			backlight = <&backlight>;
			power-supply = <&ldo6>;

			port {
				panel_input: endpoint {
					remote-endpoint = <&panel_output>;
				};
			};
		};
	};

	connector {
		compatible = "gpio-usb-b-connector", "usb-b-connector";
		label = "mini-USB";
		type = "mini";

		/*
		 * USB OTG is not yet working reliably, the ID detection
		 * mechanism tends to fry easily for unknown reasons.
		 * Until this is fixed, disable OTG by not providing the
		 * ID GPIO to the driver.
		 */
		//id-gpios = <&gpf 18 GPIO_ACTIVE_LOW>;

		vbus-gpios = <&gpb 5 GPIO_ACTIVE_HIGH>;
		vbus-supply = <&otg_vbus>;

		pinctrl-names = "default";
		pinctrl-0 = <&pins_otg>;

		port {
			usb_ep: endpoint {
				remote-endpoint = <&usb_otg_ep>;
			};
		};
	};
};

&ext {
	clock-frequency = <12000000>;
};

&pinctrl {
	pins_lcd: lcd {
		function = "lcd";
		groups = "lcd-24bit";
	};

	pins_uart2: uart2 {
		function = "uart2";
		groups = "uart2-data";
	};

	pins_mmc0: mmc0 {
		function = "mmc0";
		groups = "mmc0-1bit-a", "mmc0-4bit-a";
	};

	pins_mmc1: mmc1 {
		function = "mmc1";
		groups = "mmc1-1bit-d", "mmc1-4bit-d";
	};

	pins_otg: otg {
		otg-vbus-pin {
			function = "otg";
			groups = "otg-vbus";
		};

		vbus-pin {
			pins = "PB5";
			bias-disable;
		};
	};

	pins_pwm1: pwm1 {
		function = "pwm1";
		groups = "pwm1";
	};

	pins_pwm4: pwm4 {
		function = "pwm4";
		groups = "pwm4";
	};
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&pins_uart2>;

	status = "okay";
};

&cgu {
	/*
	 * Put high-speed peripherals under PLL1, such that we can change the
	 * PLL0 frequency on demand without having to suspend peripherals.
	 * We use a rate of 432 MHz, which is the least common multiple of
	 * 27 MHz (required by TV encoder) and 48 MHz (required by USB host).
	 * Put the GPU under PLL0 since we want a higher frequency.
	 * Use the 32 kHz oscillator as the parent of the RTC for a higher
	 * precision.
	 */
	assigned-clocks =
		<&cgu JZ4770_CLK_PLL1>,
		<&cgu JZ4770_CLK_GPU>,
		<&cgu JZ4770_CLK_RTC>,
		<&cgu JZ4770_CLK_UHC>,
		<&cgu JZ4770_CLK_LPCLK_MUX>,
		<&cgu JZ4770_CLK_MMC0_MUX>,
		<&cgu JZ4770_CLK_MMC1_MUX>;
	assigned-clock-parents =
		<0>,
		<&cgu JZ4770_CLK_PLL0>,
		<&cgu JZ4770_CLK_OSC32K>,
		<&cgu JZ4770_CLK_PLL1>,
		<&cgu JZ4770_CLK_PLL1>,
		<&cgu JZ4770_CLK_PLL1>,
		<&cgu JZ4770_CLK_PLL1>;
	assigned-clock-rates =
		<432000000>,
		<600000000>;
};

&uhc {
	/* The WiFi module is connected to the UHC. */
	status = "okay";
};

&tcu {
	/*
	 * 750 kHz for the system timer and clocksource, 12 MHz for the OST,
	 * and use RTC as the parent for the watchdog clock
	 */
	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>,
			  <&tcu TCU_CLK_OST>, <&tcu TCU_CLK_WDT>;
	assigned-clock-parents = <0>, <0>, <0>, <&cgu JZ4770_CLK_RTC>;
	assigned-clock-rates = <750000>, <750000>, <12000000>;

	/* PWM1 is in use, so use channel #2 for the clocksource */
	ingenic,pwm-channels-mask = <0xfa>;
};

&usb_otg {
	port {
		usb_otg_ep: endpoint {
			remote-endpoint = <&usb_ep>;
		};
	};
};

&otg_phy {
	vcc-supply = <&ldo5>;
};

&rtc {
	clocks = <&cgu JZ4770_CLK_RTC>;
	clock-names = "rtc";

	system-power-controller;
};

&mmc0 {
	status = "okay";

	bus-width = <4>;
	max-frequency = <48000000>;
	vmmc-supply = <&vcc>;
	non-removable;

	pinctrl-names = "default";
	pinctrl-0 = <&pins_mmc0>;
};

&mmc1 {
	status = "okay";

	bus-width = <4>;
	max-frequency = <48000000>;
	cd-gpios = <&gpb 2 GPIO_ACTIVE_LOW>;
	vmmc-supply = <&mmc1_power>;

	pinctrl-names = "default";
	pinctrl-0 = <&pins_mmc1>;
};

&lcd {
	pinctrl-names = "default";
	pinctrl-0 = <&pins_lcd>;

	port {
		panel_output: endpoint {
			remote-endpoint = <&panel_input>;
		};
	};
};