1/* 2 * Copyright 2015 Hans de Goede <hdegoede@redhat.com> 3 * 4 * This file is dual-licensed: you can use it either under the terms 5 * of the GPL or the X11 license, at your option. Note that this dual 6 * licensing only applies to this file, and not this project as a 7 * whole. 8 * 9 * a) This file is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of the 12 * License, or (at your option) any later version. 13 * 14 * This file is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * Or, alternatively, 20 * 21 * b) Permission is hereby granted, free of charge, to any person 22 * obtaining a copy of this software and associated documentation 23 * files (the "Software"), to deal in the Software without 24 * restriction, including without limitation the rights to use, 25 * copy, modify, merge, publish, distribute, sublicense, and/or 26 * sell copies of the Software, and to permit persons to whom the 27 * Software is furnished to do so, subject to the following 28 * conditions: 29 * 30 * The above copyright notice and this permission notice shall be 31 * included in all copies or substantial portions of the Software. 32 * 33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 34 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 35 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 36 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 37 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 38 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 39 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 40 * OTHER DEALINGS IN THE SOFTWARE. 41 */ 42#include "sunxi-reference-design-tablet.dtsi" 43 44#include <dt-bindings/pwm/pwm.h> 45 46/ { 47 aliases { 48 serial0 = &r_uart; 49 }; 50 51 backlight: backlight { 52 compatible = "pwm-backlight"; 53 pinctrl-names = "default"; 54 pinctrl-0 = <&bl_en_pin>; 55 pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>; 56 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>; 57 default-brightness-level = <8>; 58 enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */ 59 }; 60 61 chosen { 62 stdout-path = "serial0:115200n8"; 63 }; 64}; 65 66&i2c0 { 67 /* 68 * The gsl1680 is rated at 400KHz and it will not work reliable at 69 * 100KHz, this has been confirmed on multiple different q8 tablets. 70 * The gsl1680 is the only device on this bus. 71 */ 72 clock-frequency = <400000>; 73 74 touchscreen: touchscreen@0 { 75 interrupt-parent = <&pio>; 76 interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */ 77 pinctrl-names = "default"; 78 pinctrl-0 = <&ts_power_pin>; 79 power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */ 80 /* Tablet dts must provide reg and compatible */ 81 status = "disabled"; 82 }; 83}; 84 85&mmc0 { 86 pinctrl-names = "default"; 87 pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>; 88 vmmc-supply = <®_dcdc1>; 89 bus-width = <4>; 90 cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */ 91 cd-inverted; 92 status = "okay"; 93}; 94 95&pio { 96 bl_en_pin: bl_en_pin@0 { 97 allwinner,pins = "PH6"; 98 allwinner,function = "gpio_in"; 99 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 100 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; 101 }; 102 103 mmc0_cd_pin: mmc0_cd_pin@0 { 104 allwinner,pins = "PB4"; 105 allwinner,function = "gpio_in"; 106 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 107 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; 108 }; 109 110 ts_power_pin: ts_power_pin@0 { 111 allwinner,pins = "PH1"; 112 allwinner,function = "gpio_out"; 113 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 114 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; 115 }; 116 117 usb0_id_detect_pin: usb0_id_detect_pin@0 { 118 allwinner,pins = "PH8"; 119 allwinner,function = "gpio_in"; 120 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 121 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; 122 }; 123}; 124 125&r_rsb { 126 status = "okay"; 127 128 axp22x: pmic@3a3 { 129 compatible = "x-powers,axp223"; 130 reg = <0x3a3>; 131 interrupt-parent = <&nmi_intc>; 132 interrupts = <0 IRQ_TYPE_LEVEL_LOW>; 133 eldoin-supply = <®_dcdc1>; 134 drivevbus-supply = <®_vcc5v0>; 135 x-powers,drive-vbus-en; 136 }; 137}; 138 139#include "axp22x.dtsi" 140 141®_aldo1 { 142 regulator-always-on; 143 regulator-min-microvolt = <3000000>; 144 regulator-max-microvolt = <3000000>; 145 regulator-name = "vcc-io"; 146}; 147 148®_aldo2 { 149 regulator-always-on; 150 regulator-min-microvolt = <2350000>; 151 regulator-max-microvolt = <2650000>; 152 regulator-name = "vdd-dll"; 153}; 154 155®_aldo3 { 156 regulator-always-on; 157 regulator-min-microvolt = <2700000>; 158 regulator-max-microvolt = <3300000>; 159 regulator-name = "vcc-pll-avcc"; 160}; 161 162®_dc1sw { 163 regulator-name = "vcc-lcd"; 164}; 165 166®_dc5ldo { 167 regulator-always-on; 168 regulator-min-microvolt = <900000>; 169 regulator-max-microvolt = <1400000>; 170 regulator-name = "vdd-cpus"; 171}; 172 173®_dcdc1 { 174 regulator-always-on; 175 regulator-min-microvolt = <3000000>; 176 regulator-max-microvolt = <3000000>; 177 regulator-name = "vcc-3v0"; 178}; 179 180®_dcdc2 { 181 regulator-always-on; 182 regulator-min-microvolt = <900000>; 183 regulator-max-microvolt = <1400000>; 184 regulator-name = "vdd-sys"; 185}; 186 187®_dcdc3 { 188 regulator-always-on; 189 regulator-min-microvolt = <900000>; 190 regulator-max-microvolt = <1400000>; 191 regulator-name = "vdd-cpu"; 192}; 193 194®_dcdc5 { 195 regulator-always-on; 196 regulator-min-microvolt = <1500000>; 197 regulator-max-microvolt = <1500000>; 198 regulator-name = "vcc-dram"; 199}; 200 201®_dldo1 { 202 regulator-min-microvolt = <3300000>; 203 regulator-max-microvolt = <3300000>; 204 regulator-name = "vcc-wifi"; 205}; 206 207®_drivevbus { 208 regulator-name = "usb0-vbus"; 209 status = "okay"; 210}; 211 212®_rtc_ldo { 213 regulator-name = "vcc-rtc"; 214}; 215 216&r_uart { 217 pinctrl-names = "default"; 218 pinctrl-0 = <&r_uart_pins_a>; 219 status = "okay"; 220}; 221 222&simplefb_lcd { 223 vcc-lcd-supply = <®_dc1sw>; 224}; 225 226&usb_otg { 227 dr_mode = "otg"; 228 status = "okay"; 229}; 230 231&usb_power_supply { 232 status = "okay"; 233}; 234 235&usbphy { 236 pinctrl-names = "default"; 237 pinctrl-0 = <&usb0_id_detect_pin>; 238 usb0_id_det-gpio = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */ 239 usb0_vbus_power-supply = <&usb_power_supply>; 240 usb0_vbus-supply = <®_drivevbus>; 241 status = "okay"; 242}; 243