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,
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.
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 /* TODO: backlight uses axp gpio1 as enable pin */
61 stdout-path = "serial0:115200n8";
66 pinctrl-names = "default";
67 pinctrl-0 = <&codec_pa_pin>;
68 allwinner,pa-gpios = <&pio 6 10 GPIO_ACTIVE_HIGH>; /* PG10 */
73 cpu-supply = <®_dcdc2>;
89 * The gsl1680 is rated at 400KHz and it will not work reliable at
90 * 100KHz, this has been confirmed on multiple different q8 tablets.
91 * All other devices on this bus are also rated for 400KHz.
93 clock-frequency = <400000>;
95 touchscreen: touchscreen {
96 interrupt-parent = <&pio>;
97 interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>; /* EINT11 (PG11) */
98 pinctrl-names = "default";
99 pinctrl-0 = <&ts_power_pin>;
100 power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
101 /* Tablet dts must provide reg and compatible */
106 compatible = "nxp,pcf8563";
111 #include "axp209.dtsi"
114 vref-supply = <®_ldo2>;
118 pinctrl-names = "default";
119 pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin>;
120 vmmc-supply = <®_vcc3v0>;
122 cd-gpios = <&pio 6 0 GPIO_ACTIVE_HIGH>; /* PG0 */
132 codec_pa_pin: codec_pa_pin@0 {
134 function = "gpio_out";
137 mmc0_cd_pin: mmc0_cd_pin@0 {
139 function = "gpio_in";
143 ts_power_pin: ts_power_pin {
145 function = "gpio_out";
146 drive-strength = <10>;
150 usb0_vbus_detect_pin: usb0_vbus_detect_pin@0 {
152 function = "gpio_in";
156 usb0_id_detect_pin: usb0_id_detect_pin@0 {
158 function = "gpio_in";
162 usb0_vbus_pin_a: usb0_vbus_pin@0 {
164 function = "gpio_out";
170 regulator-min-microvolt = <1000000>;
171 regulator-max-microvolt = <1500000>;
172 regulator-name = "vdd-cpu";
177 regulator-min-microvolt = <1000000>;
178 regulator-max-microvolt = <1400000>;
179 regulator-name = "vdd-int-pll";
183 regulator-name = "vdd-rtc";
188 regulator-min-microvolt = <3000000>;
189 regulator-max-microvolt = <3000000>;
190 regulator-name = "avcc";
194 regulator-min-microvolt = <3300000>;
195 regulator-max-microvolt = <3300000>;
196 regulator-name = "vcc-wifi";
200 gpio = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
205 pinctrl-names = "default";
206 pinctrl-0 = <&uart1_pins_b>;
220 pinctrl-names = "default";
221 pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
222 usb0_id_det-gpio = <&pio 6 2 GPIO_ACTIVE_HIGH>; /* PG2 */
223 usb0_vbus_det-gpio = <&pio 6 1 GPIO_ACTIVE_HIGH>; /* PG1 */
224 usb0_vbus_power-supply = <&usb_power_supply>;
225 usb0_vbus-supply = <®_usb0_vbus>;
226 usb1_vbus-supply = <®_ldo3>;