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 gsl1680: touchscreen@40 { 75 compatible = "silead,gsl1680"; 76 reg = <0x40>; 77 interrupt-parent = <&pio>; 78 interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */ 79 pinctrl-names = "default"; 80 pinctrl-0 = <&ts_power_pin>; 81 power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */ 82 /* Most tablets use this touchscreen, but not all */ 83 status = "disabled"; 84 }; 85}; 86 87&mmc0 { 88 pinctrl-names = "default"; 89 pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>; 90 vmmc-supply = <®_dcdc1>; 91 bus-width = <4>; 92 cd-gpios = <&pio 1 4 GPIO_ACTIVE_HIGH>; /* PB4 */ 93 cd-inverted; 94 status = "okay"; 95}; 96 97&pio { 98 bl_en_pin: bl_en_pin@0 { 99 allwinner,pins = "PH6"; 100 allwinner,function = "gpio_in"; 101 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 102 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; 103 }; 104 105 mmc0_cd_pin: mmc0_cd_pin@0 { 106 allwinner,pins = "PB4"; 107 allwinner,function = "gpio_in"; 108 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 109 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; 110 }; 111 112 ts_power_pin: ts_power_pin@0 { 113 allwinner,pins = "PH1"; 114 allwinner,function = "gpio_out"; 115 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 116 allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; 117 }; 118 119 usb0_id_detect_pin: usb0_id_detect_pin@0 { 120 allwinner,pins = "PH8"; 121 allwinner,function = "gpio_in"; 122 allwinner,drive = <SUN4I_PINCTRL_10_MA>; 123 allwinner,pull = <SUN4I_PINCTRL_PULL_UP>; 124 }; 125}; 126 127&r_rsb { 128 status = "okay"; 129 130 axp22x: pmic@3a3 { 131 compatible = "x-powers,axp223"; 132 reg = <0x3a3>; 133 interrupt-parent = <&nmi_intc>; 134 interrupts = <0 IRQ_TYPE_LEVEL_LOW>; 135 eldoin-supply = <®_dcdc1>; 136 drivevbus-supply = <®_vcc5v0>; 137 x-powers,drive-vbus-en; 138 }; 139}; 140 141#include "axp22x.dtsi" 142 143®_aldo1 { 144 regulator-always-on; 145 regulator-min-microvolt = <3000000>; 146 regulator-max-microvolt = <3000000>; 147 regulator-name = "vcc-io"; 148}; 149 150®_aldo2 { 151 regulator-always-on; 152 regulator-min-microvolt = <2350000>; 153 regulator-max-microvolt = <2650000>; 154 regulator-name = "vdd-dll"; 155}; 156 157®_aldo3 { 158 regulator-always-on; 159 regulator-min-microvolt = <2700000>; 160 regulator-max-microvolt = <3300000>; 161 regulator-name = "vcc-pll-avcc"; 162}; 163 164®_dc1sw { 165 regulator-name = "vcc-lcd"; 166}; 167 168®_dc5ldo { 169 regulator-always-on; 170 regulator-min-microvolt = <900000>; 171 regulator-max-microvolt = <1400000>; 172 regulator-name = "vdd-cpus"; 173}; 174 175®_dcdc1 { 176 regulator-always-on; 177 regulator-min-microvolt = <3000000>; 178 regulator-max-microvolt = <3000000>; 179 regulator-name = "vcc-3v0"; 180}; 181 182®_dcdc2 { 183 regulator-always-on; 184 regulator-min-microvolt = <900000>; 185 regulator-max-microvolt = <1400000>; 186 regulator-name = "vdd-sys"; 187}; 188 189®_dcdc3 { 190 regulator-always-on; 191 regulator-min-microvolt = <900000>; 192 regulator-max-microvolt = <1400000>; 193 regulator-name = "vdd-cpu"; 194}; 195 196®_dcdc5 { 197 regulator-always-on; 198 regulator-min-microvolt = <1500000>; 199 regulator-max-microvolt = <1500000>; 200 regulator-name = "vcc-dram"; 201}; 202 203®_dldo1 { 204 regulator-min-microvolt = <3300000>; 205 regulator-max-microvolt = <3300000>; 206 regulator-name = "vcc-wifi"; 207}; 208 209®_drivevbus { 210 regulator-name = "usb0-vbus"; 211 status = "okay"; 212}; 213 214®_rtc_ldo { 215 regulator-name = "vcc-rtc"; 216}; 217 218&r_uart { 219 pinctrl-names = "default"; 220 pinctrl-0 = <&r_uart_pins_a>; 221 status = "okay"; 222}; 223 224&simplefb_lcd { 225 vcc-lcd-supply = <®_dc1sw>; 226}; 227 228&usb_otg { 229 dr_mode = "otg"; 230 status = "okay"; 231}; 232 233&usb_power_supply { 234 status = "okay"; 235}; 236 237&usbphy { 238 pinctrl-names = "default"; 239 pinctrl-0 = <&usb0_id_detect_pin>; 240 usb0_id_det-gpio = <&pio 7 8 GPIO_ACTIVE_HIGH>; /* PH8 */ 241 usb0_vbus_power-supply = <&usb_power_supply>; 242 usb0_vbus-supply = <®_drivevbus>; 243 status = "okay"; 244}; 245