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
 43/dts-v1/;
 44#include "sun4i-a10.dtsi"
 45#include "sunxi-common-regulators.dtsi"
 46#include <dt-bindings/gpio/gpio.h>
 47#include <dt-bindings/input/input.h>
 48#include <dt-bindings/interrupt-controller/irq.h>
 49#include <dt-bindings/pwm/pwm.h>
 50
 51/ {
 52	model = "Point of View Protab2-IPS9";
 53	compatible = "pov,protab2-ips9", "allwinner,sun4i-a10";
 54
 55	aliases {
 56		serial0 = &uart0;
 57	};
 58
 59	backlight: backlight {
 60		compatible = "pwm-backlight";
 61		pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
 62		brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
 63		default-brightness-level = <8>;
 64		enable-gpios = <&pio 7 7 GPIO_ACTIVE_HIGH>; /* PH7 */
 65	};
 66
 67	chosen {
 68		stdout-path = "serial0:115200n8";
 69	};
 70};
 71
 72&codec {
 73	allwinner,pa-gpios = <&pio 7 15 GPIO_ACTIVE_HIGH>; /* PH15 */
 74	status = "okay";
 75};
 76
 77&cpu0 {
 78	cpu-supply = <&reg_dcdc2>;
 79};
 80
 81&ehci0 {
 82	status = "okay";
 83};
 84
 85&i2c0 {
 86	status = "okay";
 87
 88	axp209: pmic@34 {
 89		reg = <0x34>;
 90		interrupts = <0>;
 91	};
 92};
 93
 94#include "axp209.dtsi"
 95
 96&i2c1 {
 97	/* pull-ups and devices require AXP209 LDO3 */
 98	status = "failed";
 99};
100
101&i2c2 {
102	status = "okay";
103
104	touchscreen@5c {
105		compatible = "pixcir,pixcir_tangoc";
106		reg = <0x5c>;
107		interrupt-parent = <&pio>;
108		interrupts = <7 21 IRQ_TYPE_EDGE_FALLING>; /* EINT21 (PH21) */
109		attb-gpio = <&pio 7 21 GPIO_ACTIVE_HIGH>; /* PH21 */
110		enable-gpios = <&pio 0 5 GPIO_ACTIVE_LOW>;
111		wake-gpios = <&pio 1 13 GPIO_ACTIVE_LOW>;
112		touchscreen-size-x = <1024>;
113		touchscreen-size-y = <768>;
114		touchscreen-inverted-x;
115		touchscreen-inverted-y;
116	};
117};
118
119&lradc {
120	vref-supply = <&reg_ldo2>;
121	status = "okay";
122
123	button-400 {
124		label = "Volume Up";
125		linux,code = <KEY_VOLUMEUP>;
126		channel = <0>;
127		voltage = <400000>;
128	};
129
130	button-800 {
131		label = "Volume Down";
132		linux,code = <KEY_VOLUMEDOWN>;
133		channel = <0>;
134		voltage = <800000>;
135	};
136};
137
138&mmc0 {
139	vmmc-supply = <&reg_vcc3v3>;
140	bus-width = <4>;
141	cd-gpios = <&pio 7 1 GPIO_ACTIVE_LOW>; /* PH1 */
142	status = "okay";
143};
144
145&otg_sram {
146	status = "okay";
147};
148
149&pio {
150	usb0_id_detect_pin: usb0-id-detect-pin {
151		pins = "PH4";
152		function = "gpio_in";
153		bias-pull-up;
154	};
155
156	usb0_vbus_detect_pin: usb0-vbus-detect-pin {
157		pins = "PH5";
158		function = "gpio_in";
159		bias-pull-down;
160	};
161};
162
163&pwm {
164	pinctrl-names = "default";
165	pinctrl-0 = <&pwm0_pin>;
166	status = "okay";
167};
168
169&reg_dcdc2 {
170	regulator-always-on;
171	regulator-min-microvolt = <1000000>;
172	regulator-max-microvolt = <1400000>;
173	regulator-name = "vdd-cpu";
174};
175
176&reg_dcdc3 {
177	regulator-always-on;
178	regulator-min-microvolt = <1250000>;
179	regulator-max-microvolt = <1250000>;
180	regulator-name = "vdd-int-dll";
181};
182
183&reg_ldo1 {
184	regulator-name = "vdd-rtc";
185};
186
187&reg_ldo2 {
188	regulator-always-on;
189	regulator-min-microvolt = <3000000>;
190	regulator-max-microvolt = <3000000>;
191	regulator-name = "avcc";
192};
193
194&reg_usb0_vbus {
195	status = "okay";
196};
197
198&reg_usb1_vbus {
199	status = "okay";
200};
201
202&uart0 {
203	pinctrl-names = "default";
204	pinctrl-0 = <&uart0_pb_pins>;
205	status = "okay";
206};
207
208&usb_otg {
209	dr_mode = "otg";
210	status = "okay";
211};
212
213&usbphy {
214	pinctrl-names = "default";
215	pinctrl-0 = <&usb0_id_detect_pin>, <&usb0_vbus_detect_pin>;
216	usb0_id_det-gpio = <&pio 7 4 GPIO_ACTIVE_HIGH>; /* PH4 */
217	usb0_vbus_det-gpio = <&pio 7 5 GPIO_ACTIVE_HIGH>; /* PH5 */
218	usb0_vbus-supply = <&reg_usb0_vbus>;
219	usb1_vbus-supply = <&reg_usb1_vbus>;
220	status = "okay";
221};