2 * Copyright 2015 Hans de Goede <hdegoede@redhat.com>
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
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.
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.
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
30 * The above copyright notice and this permission notice shall be
31 * included in all copies or substantial portions of the Software.
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,
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39 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
40 * OTHER DEALINGS IN THE SOFTWARE.
42 #include "sunxi-reference-design-tablet.dtsi"
44 #include <dt-bindings/interrupt-controller/irq.h>
45 #include <dt-bindings/pwm/pwm.h>
52 backlight: backlight {
53 compatible = "pwm-backlight";
54 pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
55 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
56 default-brightness-level = <8>;
57 enable-gpios = <&axp_gpio 1 GPIO_ACTIVE_HIGH>; /* AXP GPIO1 */
61 stdout-path = "serial0:115200n8";
66 allwinner,pa-gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>; /* PG10 */
71 cpu-supply = <®_dcdc2>;
87 * The gsl1680 is rated at 400KHz and it will not work reliable at
88 * 100KHz, this has been confirmed on multiple different q8 tablets.
89 * All other devices on this bus are also rated for 400KHz.
91 clock-frequency = <400000>;
93 touchscreen: touchscreen@40 {
95 interrupt-parent = <&pio>;
96 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>; /* EINT11 (PG11) */
97 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
98 /* Tablet dts must provide reg and compatible */
103 compatible = "nxp,pcf8563";
108 #include "axp209.dtsi"
114 &battery_power_supply {
119 vref-supply = <®_ldo2>;
123 pinctrl-names = "default";
124 pinctrl-0 = <&mmc0_pins>;
125 vmmc-supply = <®_vcc3v0>;
127 cd-gpios = <&pio 6 0 GPIO_ACTIVE_LOW>; /* PG0 */
136 usb0_vbus_detect_pin: usb0-vbus-detect-pin {
138 function = "gpio_in";
142 usb0_id_detect_pin: usb0-id-detect-pin {
144 function = "gpio_in";
151 regulator-min-microvolt = <1000000>;
152 regulator-max-microvolt = <1500000>;
153 regulator-name = "vdd-cpu";
158 regulator-min-microvolt = <1000000>;
159 regulator-max-microvolt = <1400000>;
160 regulator-name = "vdd-int-pll";
164 regulator-name = "vdd-rtc";
169 regulator-min-microvolt = <3000000>;
170 regulator-max-microvolt = <3000000>;
171 regulator-name = "avcc";
175 regulator-min-microvolt = <3300000>;
176 regulator-max-microvolt = <3300000>;
177 regulator-name = "vcc-wifi";
181 gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
186 pinctrl-names = "default";
187 pinctrl-0 = <&uart1_pg_pins>;
201 pinctrl-names = "default";
202 pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
203 usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
204 usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
205 usb0_vbus_power-supply = <&usb_power_supply>;
206 usb0_vbus-supply = <®_usb0_vbus>;
207 usb1_vbus-supply = <®_ldo3>;