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	aliases {
58		serial0 = &uart0;
59	};
60
61	chosen {
62		stdout-path = "serial0:115200n8";
63	};
64};
65
66&cpu0 {
67	cpu-supply = <&reg_dcdc3>;
68};
69
70&ehci0 {
71	/* rtl8188etv wifi is connected here */
72	status = "okay";
73};
74
75&i2c0 {
76	/* pull-ups and device VDDIO use AXP221 DLDO3 */
77	pinctrl-names = "default";
78	pinctrl-0 = <&i2c0_pins_a>;
79	status = "failed";
80};
81
82&i2c1 {
83	pinctrl-names = "default";
84	pinctrl-0 = <&i2c1_pins_a>;
85	status = "okay";
86
87	ctp@5d {
88		pinctrl-names = "default";
89		pinctrl-0 = <&gt911_int_primo81>;
90		compatible = "goodix,gt911";
91		reg = <0x5d>;
92		interrupt-parent = <&pio>;
93		interrupts = <0 3 IRQ_TYPE_LEVEL_HIGH>; /* PA3 */
94		touchscreen-swapped-x-y;
95	};
96};
97
98&i2c2 {
99	pinctrl-names = "default";
100	pinctrl-0 = <&i2c2_pins_a>;
101	status = "okay";
102
103	accelerometer@1c {
104		pinctrl-names = "default";
105		pinctrl-0 = <&mma8452_int_primo81>;
106		compatible = "fsl,mma8452";
107		reg = <0x1c>;
108		interrupt-parent = <&pio>;
109		interrupts = <0 9 IRQ_TYPE_LEVEL_HIGH>; /* PA9 */
110		#io-channel-cells = <1>;
111	};
112};
113
114&lradc {
115	vref-supply = <&reg_aldo3>;
116	status = "okay";
117
118	button@158 {
119		label = "Volume Up";
120		linux,code = <KEY_VOLUMEUP>;
121		channel = <0>;
122		voltage = <158730>;
123	};
124
125	button@349 {
126		label = "Volume Down";
127		linux,code = <KEY_VOLUMEDOWN>;
128		channel = <0>;
129		voltage = <349206>;
130	};
131};
132
133&mmc0 {
134	pinctrl-names = "default";
135	pinctrl-0 = <&mmc0_pins_a>, <&mmc0_cd_pin_primo81>;
136	vmmc-supply = <&reg_dcdc1>;
137	bus-width = <4>;
138	cd-gpios = <&pio 0 8 GPIO_ACTIVE_HIGH>; /* PA8 */
139	cd-inverted;
140	status = "okay";
141};
142
143&pio {
144	gt911_int_primo81: gt911_int_pin@0 {
145		allwinner,pins = "PA3";
146		allwinner,function = "gpio_in";
147		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
148		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
149	};
150
151	mma8452_int_primo81: mma8452_int_pin@0 {
152		allwinner,pins = "PA9";
153		allwinner,function = "gpio_in";
154		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
155		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
156	};
157
158	mmc0_cd_pin_primo81: mmc0_cd_pin@0 {
159		allwinner,pins = "PA8";
160		allwinner,function = "gpio_in";
161		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
162		allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
163	};
164};
165
166&p2wi {
167	status = "okay";
168
169	axp22x: pmic@68 {
170		compatible = "x-powers,axp221";
171		reg = <0x68>;
172		interrupt-parent = <&nmi_intc>;
173		interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
174	};
175};
176
177#include "axp22x.dtsi"
178
179&reg_aldo3 {
180	regulator-always-on;
181	regulator-min-microvolt = <2700000>;
182	regulator-max-microvolt = <3300000>;
183	regulator-name = "avcc";
184};
185
186&reg_dc1sw {
187	regulator-min-microvolt = <3000000>;
188	regulator-max-microvolt = <3000000>;
189	regulator-name = "vcc-lcd";
190};
191
192&reg_dc5ldo {
193	regulator-min-microvolt = <700000>;
194	regulator-max-microvolt = <1320000>;
195	regulator-name = "vdd-cpus"; /* This is an educated guess */
196};
197
198&reg_dcdc1 {
199	regulator-always-on;
200	regulator-min-microvolt = <3000000>;
201	regulator-max-microvolt = <3000000>;
202	regulator-name = "vcc-3v0";
203};
204
205&reg_dcdc2 {
206	regulator-min-microvolt = <700000>;
207	regulator-max-microvolt = <1320000>;
208	regulator-name = "vdd-gpu";
209};
210
211&reg_dcdc3 {
212	regulator-always-on;
213	regulator-min-microvolt = <700000>;
214	regulator-max-microvolt = <1320000>;
215	regulator-name = "vdd-cpu";
216};
217
218&reg_dcdc4 {
219	regulator-always-on;
220	regulator-min-microvolt = <700000>;
221	regulator-max-microvolt = <1320000>;
222	regulator-name = "vdd-sys-dll";
223};
224
225&reg_dcdc5 {
226	regulator-always-on;
227	regulator-min-microvolt = <1500000>;
228	regulator-max-microvolt = <1500000>;
229	regulator-name = "vcc-dram";
230};
231
232&reg_dldo1 {
233	regulator-min-microvolt = <3300000>;
234	regulator-max-microvolt = <3300000>;
235	regulator-name = "vcc-wifi";
236};
237
238&reg_dldo3 {
239	regulator-min-microvolt = <2800000>;
240	regulator-max-microvolt = <2800000>;
241	regulator-name = "vddio-csi";
242};
243
244&reg_eldo3 {
245	regulator-min-microvolt = <1080000>;
246	regulator-max-microvolt = <1320000>;
247	regulator-name = "vdd-mipi-bridge";
248};
249
250&simplefb_lcd {
251	vcc-lcd-supply = <&reg_dc1sw>;
252	vdd-mipi-bridge-supply = <&reg_eldo3>;
253};
254
255&usb_otg {
256	/* otg support requires support for AXP221 usb-power-supply and GPIO */
257	dr_mode = "host";
258	status = "okay";
259};
260
261&usbphy {
262	usb1_vbus-supply = <&reg_dldo1>;
263	status = "okay";
264};
265