FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/sun8i-reference-design-tablet.dtsi

     /*
      * Copyright 2015 Hans de Goede <hdegoede@redhat.com>
      *
      * This file is dual-licensed: you can use it either under the terms
      * of the GPL or the X11 license, at your option. Note that this dual
      * licensing only applies to this file, and not this project as a
      * whole.
      *
      *  a) This file is free software; you can redistribute it and/or
     *     modify it under the terms of the GNU General Public License as
     *     published by the Free Software Foundation; either version 2 of the
     *     License, or (at your option) any later version.
     *
     *     This file is distributed in the hope that it will be useful,
     *     but WITHOUT ANY WARRANTY; without even the implied warranty of
     *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     *     GNU General Public License for more details.
     *
     * Or, alternatively,
     *
     *  b) Permission is hereby granted, free of charge, to any person
     *     obtaining a copy of this software and associated documentation
     *     files (the "Software"), to deal in the Software without
     *     restriction, including without limitation the rights to use,
     *     copy, modify, merge, publish, distribute, sublicense, and/or
     *     sell copies of the Software, and to permit persons to whom the
     *     Software is furnished to do so, subject to the following
     *     conditions:
     *
     *     The above copyright notice and this permission notice shall be
     *     included in all copies or substantial portions of the Software.
     *
     *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
     *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
     *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
     *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     *     OTHER DEALINGS IN THE SOFTWARE.
     */
    #include "sunxi-reference-design-tablet.dtsi"
    
    #include <dt-bindings/pwm/pwm.h>
    
    / {
            aliases {
                    serial0 = &r_uart;
            };
    
            backlight: backlight {
                    compatible = "pwm-backlight";
                    pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
                    brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
                    default-brightness-level = <8>;
                    enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
                    power-supply = <&reg_dc1sw>;
            };
    
            chosen {
                    stdout-path = "serial0:115200n8";
            };
    };
    
    &i2c0 {
            /*
             * The gsl1680 is rated at 400KHz and it will not work reliable at
             * 100KHz, this has been confirmed on multiple different q8 tablets.
             * The gsl1680 is the only device on this bus.
             */
            clock-frequency = <400000>;
    
            touchscreen: touchscreen@40 {
                    reg = <0x40>;
                    interrupt-parent = <&pio>;
                    interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */
                    power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
                    /* Tablet dts must provide reg and compatible */
                    status = "disabled";
            };
    };
    
    &mmc0 {
            vmmc-supply = <&reg_dcdc1>;
            bus-width = <4>;
            cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */
            status = "okay";
    };
    
    &r_rsb {
            status = "okay";
    
            axp22x: pmic@3a3 {
                    compatible = "x-powers,axp223";
                    reg = <0x3a3>;
                    interrupt-parent = <&r_intc>;
                    interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
                    eldoin-supply = <&reg_dcdc1>;
                    drivevbus-supply = <&reg_vcc5v0>;
                   x-powers,drive-vbus-en;
           };
   };
   
   #include "axp223.dtsi"
   
   &ac_power_supply {
           status = "okay";
   };
   
   &battery_power_supply {
           status = "okay";
   };
   
   &reg_aldo1 {
           regulator-always-on;
           regulator-min-microvolt = <3000000>;
           regulator-max-microvolt = <3000000>;
           regulator-name = "vcc-io";
   };
   
   &reg_aldo2 {
           regulator-always-on;
           regulator-min-microvolt = <2350000>;
           regulator-max-microvolt = <2650000>;
           regulator-name = "vdd-dll";
   };
   
   &reg_aldo3 {
           regulator-always-on;
           regulator-min-microvolt = <2700000>;
           regulator-max-microvolt = <3300000>;
           regulator-name = "vcc-pll-avcc";
   };
   
   &reg_dc1sw {
           regulator-name = "vcc-lcd";
   };
   
   &reg_dc5ldo {
           regulator-always-on;
           regulator-min-microvolt = <900000>;
           regulator-max-microvolt = <1400000>;
           regulator-name = "vdd-cpus";
   };
   
   &reg_dcdc1 {
           regulator-always-on;
           regulator-min-microvolt = <3000000>;
           regulator-max-microvolt = <3000000>;
           regulator-name = "vcc-3v0";
   };
   
   &reg_dcdc2 {
           regulator-always-on;
           regulator-min-microvolt = <900000>;
           regulator-max-microvolt = <1400000>;
           regulator-name = "vdd-sys";
   };
   
   &reg_dcdc3 {
           regulator-always-on;
           regulator-min-microvolt = <900000>;
           regulator-max-microvolt = <1400000>;
           regulator-name = "vdd-cpu";
   };
   
   &reg_dcdc5 {
           regulator-always-on;
           regulator-min-microvolt = <1500000>;
           regulator-max-microvolt = <1500000>;
           regulator-name = "vcc-dram";
   };
   
   &reg_dldo1 {
           regulator-min-microvolt = <3300000>;
           regulator-max-microvolt = <3300000>;
           regulator-name = "vcc-wifi";
   };
   
   &reg_drivevbus {
           regulator-name = "usb0-vbus";
           status = "okay";
   };
   
   &reg_ldo_io1 {
           regulator-min-microvolt = <3300000>;
           regulator-max-microvolt = <3300000>;
           regulator-name = "vcc-touchscreen";
           status = "okay";
   };
   
   &reg_rtc_ldo {
           regulator-name = "vcc-rtc";
   };
   
   &cpu0 {
           cpu-supply = <&reg_dcdc2>;
   };
   
   &r_uart {
           pinctrl-names = "default";
           pinctrl-0 = <&r_uart_pins_a>;
           status = "okay";
   };
   
   &simplefb_lcd {
           vcc-lcd-supply = <&reg_dc1sw>;
   };
   
   &usb_otg {
           dr_mode = "otg";
           status = "okay";
   };
   
   &usb_power_supply {
           status = "okay";
   };
   
   &usbphy {
           usb0_id_det-gpios = <&pio 7 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PH8 */
           usb0_vbus_power-supply = <&usb_power_supply>;
           usb0_vbus-supply = <&reg_drivevbus>;
           status = "okay";
   };

Cache object: f47a7d969a7ae9ebc53dd7bae9c93873