linux/arch/arm/boot/dts/sunxi-common-regulators.dtsi

/*
 * sunxi boards common regulator (ahci target power supply, usb-vbus) code
 *
 * Copyright 2014 - Hans de Goede <hdegoede@redhat.com>
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 or later at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

/ {
	soc@01c00000 {
		pio: pinctrl@01c20800 {
			ahci_pwr_pin_a: ahci_pwr_pin@0 {
				allwinner,pins = "PB8";
				allwinner,function = "gpio_out";
				allwinner,drive = <0>;
				allwinner,pull = <0>;
			};

			usb1_vbus_pin_a: usb1_vbus_pin@0 {
				allwinner,pins = "PH6";
				allwinner,function = "gpio_out";
				allwinner,drive = <0>;
				allwinner,pull = <0>;
			};

			usb2_vbus_pin_a: usb2_vbus_pin@0 {
				allwinner,pins = "PH3";
				allwinner,function = "gpio_out";
				allwinner,drive = <0>;
				allwinner,pull = <0>;
			};
		};
	};

	reg_ahci_5v: ahci-5v {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&ahci_pwr_pin_a>;
		regulator-name = "ahci-5v";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		gpio = <&pio 1 8 0>;
		status = "disabled";
	};

	reg_usb1_vbus: usb1-vbus {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&usb1_vbus_pin_a>;
		regulator-name = "usb1-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		gpio = <&pio 7 6 0>;
		status = "disabled";
	};

	reg_usb2_vbus: usb2-vbus {
		compatible = "regulator-fixed";
		pinctrl-names = "default";
		pinctrl-0 = <&usb2_vbus_pin_a>;
		regulator-name = "usb2-vbus";
		regulator-min-microvolt = <5000000>;
		regulator-max-microvolt = <5000000>;
		enable-active-high;
		gpio = <&pio 7 3 0>;
		status = "disabled";
	};
};