include-prefixes/arm/sun8i-reference-design-tablet.dtsi

0001 /*
0002  * Copyright 2015 Hans de Goede <hdegoede@redhat.com>
0003  *
0004  * This file is dual-licensed: you can use it either under the terms
0005  * of the GPL or the X11 license, at your option. Note that this dual
0006  * licensing only applies to this file, and not this project as a
0007  * whole.
0008  *
0009  *  a) This file is free software; you can redistribute it and/or
0010  *     modify it under the terms of the GNU General Public License as
0011  *     published by the Free Software Foundation; either version 2 of the
0012  *     License, or (at your option) any later version.
0013  *
0014  *     This file is distributed in the hope that it will be useful,
0015  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
0016  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0017  *     GNU General Public License for more details.
0018  *
0019  * Or, alternatively,
0020  *
0021  *  b) Permission is hereby granted, free of charge, to any person
0022  *     obtaining a copy of this software and associated documentation
0023  *     files (the "Software"), to deal in the Software without
0024  *     restriction, including without limitation the rights to use,
0025  *     copy, modify, merge, publish, distribute, sublicense, and/or
0026  *     sell copies of the Software, and to permit persons to whom the
0027  *     Software is furnished to do so, subject to the following
0028  *     conditions:
0029  *
0030  *     The above copyright notice and this permission notice shall be
0031  *     included in all copies or substantial portions of the Software.
0032  *
0033  *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0034  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
0035  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0036  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
0037  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
0038  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0039  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0040  *     OTHER DEALINGS IN THE SOFTWARE.
0041  */
0042 #include "sunxi-reference-design-tablet.dtsi"
0043
0044 #include <dt-bindings/pwm/pwm.h>
0045
0046 / {
0047         aliases {
0048                 serial0 = &r_uart;
0049         };
0050
0051         backlight: backlight {
0052                 compatible = "pwm-backlight";
0053                 pwms = <&pwm 0 50000 PWM_POLARITY_INVERTED>;
0054                 brightness-levels = <0 10 20 30 40 50 60 70 80 90 100>;
0055                 default-brightness-level = <8>;
0056                 enable-gpios = <&pio 7 6 GPIO_ACTIVE_HIGH>; /* PH6 */
0057                 power-supply = <&reg_dc1sw>;
0058         };
0059
0060         chosen {
0061                 stdout-path = "serial0:115200n8";
0062         };
0063 };
0064
0065 &i2c0 {
0066         /*
0067          * The gsl1680 is rated at 400KHz and it will not work reliable at
0068          * 100KHz, this has been confirmed on multiple different q8 tablets.
0069          * The gsl1680 is the only device on this bus.
0070          */
0071         clock-frequency = <400000>;
0072
0073         touchscreen: touchscreen@40 {
0074                 reg = <0x40>;
0075                 interrupt-parent = <&pio>;
0076                 interrupts = <1 5 IRQ_TYPE_EDGE_FALLING>; /* PB5 */
0077                 power-gpios = <&pio 7 1 GPIO_ACTIVE_HIGH>; /* PH1 */
0078                 /* Tablet dts must provide reg and compatible */
0079                 status = "disabled";
0080         };
0081 };
0082
0083 &mmc0 {
0084         vmmc-supply = <&reg_dcdc1>;
0085         bus-width = <4>;
0086         cd-gpios = <&pio 1 4 GPIO_ACTIVE_LOW>; /* PB4 */
0087         status = "okay";
0088 };
0089
0090 &r_rsb {
0091         status = "okay";
0092
0093         axp22x: pmic@3a3 {
0094                 compatible = "x-powers,axp223";
0095                 reg = <0x3a3>;
0096                 interrupt-parent = <&r_intc>;
0097                 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_LOW>;
0098                 eldoin-supply = <&reg_dcdc1>;
0099                 drivevbus-supply = <&reg_vcc5v0>;
0100                 x-powers,drive-vbus-en;
0101         };
0102 };
0103
0104 #include "axp223.dtsi"
0105
0106 &ac_power_supply {
0107         status = "okay";
0108 };
0109
0110 &battery_power_supply {
0111         status = "okay";
0112 };
0113
0114 &reg_aldo1 {
0115         regulator-always-on;
0116         regulator-min-microvolt = <3000000>;
0117         regulator-max-microvolt = <3000000>;
0118         regulator-name = "vcc-io";
0119 };
0120
0121 &reg_aldo2 {
0122         regulator-always-on;
0123         regulator-min-microvolt = <2350000>;
0124         regulator-max-microvolt = <2650000>;
0125         regulator-name = "vdd-dll";
0126 };
0127
0128 &reg_aldo3 {
0129         regulator-always-on;
0130         regulator-min-microvolt = <2700000>;
0131         regulator-max-microvolt = <3300000>;
0132         regulator-name = "vcc-pll-avcc";
0133 };
0134
0135 &reg_dc1sw {
0136         regulator-name = "vcc-lcd";
0137 };
0138
0139 &reg_dc5ldo {
0140         regulator-always-on;
0141         regulator-min-microvolt = <900000>;
0142         regulator-max-microvolt = <1400000>;
0143         regulator-name = "vdd-cpus";
0144 };
0145
0146 &reg_dcdc1 {
0147         regulator-always-on;
0148         regulator-min-microvolt = <3000000>;
0149         regulator-max-microvolt = <3000000>;
0150         regulator-name = "vcc-3v0";
0151 };
0152
0153 &reg_dcdc2 {
0154         regulator-always-on;
0155         regulator-min-microvolt = <900000>;
0156         regulator-max-microvolt = <1400000>;
0157         regulator-name = "vdd-sys";
0158 };
0159
0160 &reg_dcdc3 {
0161         regulator-always-on;
0162         regulator-min-microvolt = <900000>;
0163         regulator-max-microvolt = <1400000>;
0164         regulator-name = "vdd-cpu";
0165 };
0166
0167 &reg_dcdc5 {
0168         regulator-always-on;
0169         regulator-min-microvolt = <1500000>;
0170         regulator-max-microvolt = <1500000>;
0171         regulator-name = "vcc-dram";
0172 };
0173
0174 &reg_dldo1 {
0175         regulator-min-microvolt = <3300000>;
0176         regulator-max-microvolt = <3300000>;
0177         regulator-name = "vcc-wifi";
0178 };
0179
0180 &reg_drivevbus {
0181         regulator-name = "usb0-vbus";
0182         status = "okay";
0183 };
0184
0185 &reg_ldo_io1 {
0186         regulator-min-microvolt = <3300000>;
0187         regulator-max-microvolt = <3300000>;
0188         regulator-name = "vcc-touchscreen";
0189         status = "okay";
0190 };
0191
0192 &reg_rtc_ldo {
0193         regulator-name = "vcc-rtc";
0194 };
0195
0196 &cpu0 {
0197         cpu-supply = <&reg_dcdc2>;
0198 };
0199
0200 &r_uart {
0201         pinctrl-names = "default";
0202         pinctrl-0 = <&r_uart_pins_a>;
0203         status = "okay";
0204 };
0205
0206 &simplefb_lcd {
0207         vcc-lcd-supply = <&reg_dc1sw>;
0208 };
0209
0210 &usb_otg {
0211         dr_mode = "otg";
0212         status = "okay";
0213 };
0214
0215 &usb_power_supply {
0216         status = "okay";
0217 };
0218
0219 &usbphy {
0220         usb0_id_det-gpios = <&pio 7 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PH8 */
0221         usb0_vbus_power-supply = <&usb_power_supply>;
0222         usb0_vbus-supply = <&reg_drivevbus>;
0223         status = "okay";
0224 };