1/*
  2 * Copyright 2014 Siarhei Siamashka <siarhei.siamashka@gmail.com>
  3 * Copyright 2015 Karsten Merker <merker@debian.org>
  4 * Copyright 2015 Chen-Yu Tsai <wens@csie.org>
  5 *
  6 * This file is dual-licensed: you can use it either under the terms
  7 * of the GPL or the X11 license, at your option. Note that this dual
  8 * licensing only applies to this file, and not this project as a
  9 * whole.
 10 *
 11 *  a) This file is free software; you can redistribute it and/or
 12 *     modify it under the terms of the GNU General Public License as
 13 *     published by the Free Software Foundation; either version 2 of the
 14 *     License, or (at your option) any later version.
 15 *
 16 *     This file is distributed in the hope that it will be useful,
 17 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 18 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 19 *     GNU General Public License for more details.
 20 *
 21 * Or, alternatively,
 22 *
 23 *  b) Permission is hereby granted, free of charge, to any person
 24 *     obtaining a copy of this software and associated documentation
 25 *     files (the "Software"), to deal in the Software without
 26 *     restriction, including without limitation the rights to use,
 27 *     copy, modify, merge, publish, distribute, sublicense, and/or
 28 *     sell copies of the Software, and to permit persons to whom the
 29 *     Software is furnished to do so, subject to the following
 30 *     conditions:
 31 *
 32 *     The above copyright notice and this permission notice shall be
 33 *     included in all copies or substantial portions of the Software.
 34 *
 35 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 36 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 37 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 38 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 39 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 40 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 41 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 42 *     OTHER DEALINGS IN THE SOFTWARE.
 43 */
 44
 45/dts-v1/;
 46#include "sun6i-a31s.dtsi"
 47#include "sunxi-common-regulators.dtsi"
 48
 49#include <dt-bindings/gpio/gpio.h>
 50#include <dt-bindings/input/input.h>
 51#include <dt-bindings/pinctrl/sun4i-a10.h>
 52
 53/ {
 54	model = "MSI Primo81 tablet";
 55	compatible = "msi,primo81", "allwinner,sun6i-a31s";
 56};
 57
 58&cpu0 {
 59	cpu-supply = <&reg_dcdc3>;
 60};
 61
 62&ehci0 {
 63	/* rtl8188etv wifi is connected here */
 64	status = "okay";
 65};
 66
 67&i2c0 {
 68	/* pull-ups and device VDDIO use AXP221 DLDO3 */
 69	pinctrl-names = "default";
 70	pinctrl-0 = <&i2c0_pins_a>;
 71	status = "failed";
 72};
 73
 74&i2c1 {
 75	pinctrl-names = "default";
 76	pinctrl-0 = <&i2c1_pins_a>;
 77	status = "okay";
 78
 79	ctp@5d {
 80		pinctrl-names = "default";
 81		pinctrl-0 = <&gt911_int_primo81>;
 82		compatible = "goodix,gt911";
 83		reg = <0x5d>;
 84		interrupt-parent = <&pio>;
 85		interrupts = <0 3 IRQ_TYPE_LEVEL_HIGH>; /* PA3 */
 86		touchscreen-swapped-x-y;
 87	};
 88};
 89
 90&i2c2 {
 91	pinctrl-names = "default";
 92	pinctrl-0 = <&i2c2_pins_a>;
 93	status = "okay";
 94
 95	accelerometer@1c {
 96		pinctrl-names = "default";
 97		pinctrl-0 = <&mma8452_int_primo81>;
 98		compatible = "fsl,mma8452";
 99		reg = <0x1c>;
100		interrupt-parent = <&pio>;
101		interrupts = <0 9 IRQ_TYPE_LEVEL_HIGH>; /* PA9 */
102		#io-channel-cells = <1>;
103	};
104};
105
106&lradc {
107	vref-supply = <&reg_aldo3>;
108	status = "okay";
109
110	button@158 {
111		label = "Volume Up";
112		linux,code = <KEY_VOLUMEUP>;
113		channel = <0>;
114		voltage = <158730>;
115	};
116
117	button@349 {
118		label = "Volume Down";
119		linux,code = <KEY_VOLUMEDOWN>;
120		channel = <0>;
121		voltage = <349206>;
122	};
123};
124
125&mmc0 {
126	pinctrl-names = "default";
127	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_primo81>;
128	vmmc-supply = <&reg_dcdc1>;
129	bus-width = <4>;
130	cd-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
131	cd-inverted;
132	status = "okay";
133};
134
135&pio {
136	gt911_int_primo81: gt911_int_pin@0 {
137		allwinner,pins = "PA3";
138		allwinner,function = "gpio_in";
139		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
140		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
141	};
142
143	mma8452_int_primo81: mma8452_int_pin@0 {
144		allwinner,pins = "PA9";
145		allwinner,function = "gpio_in";
146		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
147		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
148	};
149
150	mmc0_cd_pin_primo81: mmc0_cd_pin@0 {
151		allwinner,pins = "PA8";
152		allwinner,function = "gpio_in";
153		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
154		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
155	};
156};
157
158&p2wi {
159	status = "okay";
160
161	axp22x: pmic@68 {
162		compatible = "x-powers,axp221";
163		reg = <0x68>;
164		interrupt-parent = <&nmi_intc>;
165		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
166	};
167};
168
169#include "axp22x.dtsi"
170
171&reg_aldo3 {
172	regulator-always-on;
173	regulator-min-microvolt = <2700000>;
174	regulator-max-microvolt = <3300000>;
175	regulator-name = "avcc";
176};
177
178&reg_dc1sw {
179	regulator-min-microvolt = <3000000>;
180	regulator-max-microvolt = <3000000>;
181	regulator-name = "vcc-lcd";
182};
183
184&reg_dc5ldo {
185	regulator-min-microvolt = <700000>;
186	regulator-max-microvolt = <1320000>;
187	regulator-name = "vdd-cpus"; /* This is an educated guess */
188};
189
190&reg_dcdc1 {
191	regulator-always-on;
192	regulator-min-microvolt = <3000000>;
193	regulator-max-microvolt = <3000000>;
194	regulator-name = "vcc-3v0";
195};
196
197&reg_dcdc2 {
198	regulator-min-microvolt = <700000>;
199	regulator-max-microvolt = <1320000>;
200	regulator-name = "vdd-gpu";
201};
202
203&reg_dcdc3 {
204	regulator-always-on;
205	regulator-min-microvolt = <700000>;
206	regulator-max-microvolt = <1320000>;
207	regulator-name = "vdd-cpu";
208};
209
210&reg_dcdc4 {
211	regulator-always-on;
212	regulator-min-microvolt = <700000>;
213	regulator-max-microvolt = <1320000>;
214	regulator-name = "vdd-sys-dll";
215};
216
217&reg_dcdc5 {
218	regulator-always-on;
219	regulator-min-microvolt = <1500000>;
220	regulator-max-microvolt = <1500000>;
221	regulator-name = "vcc-dram";
222};
223
224&reg_dldo1 {
225	regulator-min-microvolt = <3300000>;
226	regulator-max-microvolt = <3300000>;
227	regulator-name = "vcc-wifi";
228};
229
230&reg_dldo3 {
231	regulator-min-microvolt = <2800000>;
232	regulator-max-microvolt = <2800000>;
233	regulator-name = "vddio-csi";
234};
235
236&reg_eldo3 {
237	regulator-min-microvolt = <1080000>;
238	regulator-max-microvolt = <1320000>;
239	regulator-name = "vdd-mipi-bridge";
240};
241
242&simplefb_lcd {
243	vcc-lcd-supply = <&reg_dc1sw>;
244	vdd-mipi-bridge-supply = <&reg_eldo3>;
245};
246
247&usb_otg {
248	/* otg support requires support for AXP221 usb-power-supply and GPIO */
249	dr_mode = "host";
250	status = "okay";
251};
252
253&usbphy {
254	usb1_vbus-supply = <&reg_dldo1>;
255	status = "okay";
256};