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      1 /*
      2  * Copyright 2014 Siarhei Siamashka <siarhei.siamashka (at) gmail.com>
      3  * Copyright 2015 Karsten Merker <merker (at) debian.org>
      4  * Copyright 2015 Chen-Yu Tsai <wens (at) 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-name = "vcc-lcd";
    180 };
    181 
    182 &reg_dc5ldo {
    183 	regulator-min-microvolt = <700000>;
    184 	regulator-max-microvolt = <1320000>;
    185 	regulator-name = "vdd-cpus"; /* This is an educated guess */
    186 };
    187 
    188 &reg_dcdc1 {
    189 	regulator-always-on;
    190 	regulator-min-microvolt = <3000000>;
    191 	regulator-max-microvolt = <3000000>;
    192 	regulator-name = "vcc-3v0";
    193 };
    194 
    195 &reg_dcdc2 {
    196 	regulator-min-microvolt = <700000>;
    197 	regulator-max-microvolt = <1320000>;
    198 	regulator-name = "vdd-gpu";
    199 };
    200 
    201 &reg_dcdc3 {
    202 	regulator-always-on;
    203 	regulator-min-microvolt = <700000>;
    204 	regulator-max-microvolt = <1320000>;
    205 	regulator-name = "vdd-cpu";
    206 };
    207 
    208 &reg_dcdc4 {
    209 	regulator-always-on;
    210 	regulator-min-microvolt = <700000>;
    211 	regulator-max-microvolt = <1320000>;
    212 	regulator-name = "vdd-sys-dll";
    213 };
    214 
    215 &reg_dcdc5 {
    216 	regulator-always-on;
    217 	regulator-min-microvolt = <1500000>;
    218 	regulator-max-microvolt = <1500000>;
    219 	regulator-name = "vcc-dram";
    220 };
    221 
    222 &reg_dldo1 {
    223 	regulator-min-microvolt = <3300000>;
    224 	regulator-max-microvolt = <3300000>;
    225 	regulator-name = "vcc-wifi";
    226 };
    227 
    228 &reg_dldo3 {
    229 	regulator-min-microvolt = <2800000>;
    230 	regulator-max-microvolt = <2800000>;
    231 	regulator-name = "vddio-csi";
    232 };
    233 
    234 &reg_eldo3 {
    235 	regulator-min-microvolt = <1080000>;
    236 	regulator-max-microvolt = <1320000>;
    237 	regulator-name = "vdd-mipi-bridge";
    238 };
    239 
    240 &simplefb_lcd {
    241 	vcc-lcd-supply = <&reg_dc1sw>;
    242 	vdd-mipi-bridge-supply = <&reg_eldo3>;
    243 };
    244 
    245 &usb_otg {
    246 	/* otg support requires support for AXP221 usb-power-supply and GPIO */
    247 	dr_mode = "host";
    248 	status = "okay";
    249 };
    250 
    251 &usbphy {
    252 	usb1_vbus-supply = <&reg_dldo1>;
    253 	status = "okay";
    254 };
    255