sun7i-a20-linova1.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Device Tree Source for LiNova1 HMI
 *
 * Copyright (C) 2018 Micronova srl
 *   Author: Giulio Benetti <giulio.benetti@micronovasrl.com>
 */

/dts-v1/;
#include "sun7i-a20.dtsi"
#include "sunxi-common-regulators.dtsi"

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

/ {
	aliases {
		serial0 = &uart0;
	};
	
	backlight: backlight {
		compatible = "pwm-backlight";
		power-supply = <&reg_axp_ipsout>;
		pwms = <&pwm 0 500 PWM_POLARITY_NORMAL>;
		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
		default-brightness-level = <8>;
		pinctrl-names = "default";
		pinctrl-0 = <&bl_enable_pin>;
		enable-gpios = <&pio 7 27 GPIO_ACTIVE_HIGH>; /* PH27 */
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	reg_axp_ipsout: axp_ipsout {
		compatible = "regulator-fixed";
		regulator-name = "axp-ipsout";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		regulator-always-on;
	};
};

&be0 {
	status = "okay";
};

&de {
	status = "okay";
};

&ehci0 {
	status = "okay";
};

&ehci1 {
	status = "okay";
};

&i2c0 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c0_pins_a>;
	status = "okay";

	axp209: pmic@34 {
		compatible = "x-powers,axp209";
		reg = <0x34>;
		interrupt-parent = <&nmi_intc>;
		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;

		interrupt-controller;
		#interrupt-cells = <1>;
	};
};

&i2c1 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c1_pins_a>;
	status = "okay";

	rtc@68 {
		compatible = "st,m41t11";
		reg = <0x68>;
		calibration = /bits/ 8 <15>;
		/*calib-negative;*/
		frequency-test;
	};
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins_a>;
	vmmc-supply = <&reg_vcc3v3>;
	bus-width = <4>;
	cd-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
	cd-inverted;
	status = "okay";
};

&ohci0 {
	status = "okay";
};

&ohci1 {
	status = "okay";
};

&otg_sram {
	status = "okay";
};

&pio {
	bl_enable_pin: bl_enable_pin {
		pins = "PH27";
		function = "gpio_out";
	};
};

&pwm {
	pinctrl-names = "default";
	pinctrl-0 = <&pwm0_pins_a>, <&pwm1_pins_a>;
	status = "okay";
};

#include "axp209.dtsi"

&ac_power_supply {
	status = "okay";
};

&reg_dcdc2 {
	regulator-always-on;
	regulator-min-microvolt = <1000000>;
	regulator-max-microvolt = <1400000>;
	regulator-name = "vdd-cpu";
};

&reg_dcdc3 {
	regulator-always-on;
	regulator-min-microvolt = <1000000>;
	regulator-max-microvolt = <1400000>;
	regulator-name = "vdd-int-dll";
};

&reg_ldo2 {
	regulator-always-on;
	regulator-min-microvolt = <3000000>;
	regulator-max-microvolt = <3000000>;
	regulator-name = "avcc";
};

&reg_usb0_vbus {
	status = "okay";
};

&reg_usb1_vbus {
	status = "okay";
};

&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pins_a>;
	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins_a>;
	status = "okay";
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart2_pins_a>;
	status = "okay";
};

&usb_otg {
	dr_mode = "peripheral";
	status = "okay";
};

&usbphy {
	pinctrl-names = "default";
	usb0_vbus-supply = <&reg_usb0_vbus>;
	usb1_vbus-supply = <&reg_usb1_vbus>;
	status = "okay";
};