arch/arm/boot/dts/mvebu-linkstation-gpio-simple.dtsi

   1 /*
   2  * Device Tree common file for gpio-{keys,leds} on Buffalo Linkstation
   3  *
   4  * Copyright (C) 2015, 2016
   5  * Roger Shimizu <rogershimizu@gmail.com>
   6  *
   7  * This file is dual-licensed: you can use it either under the terms
   8  * of the GPL or the X11 license, at your option. Note that this dual
   9  * licensing only applies to this file, and not this project as a
  10  * whole.
  11  *
  12  *  a) This file is free software; you can redistribute it and/or
  13  *     modify it under the terms of the GNU General Public License as
  14  *     published by the Free Software Foundation; either version 2 of the
  15  *     License, or (at your option) any later version.
  16  *
  17  *     This file is distributed in the hope that it will be useful
  18  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  *     GNU General Public License for more details.
  21  *
  22  * Or, alternatively
  23  *
  24  *  b) Permission is hereby granted, free of charge, to any person
  25  *     obtaining a copy of this software and associated documentation
  26  *     files (the "Software"), to deal in the Software without
  27  *     restriction, including without limitation the rights to use
  28  *     copy, modify, merge, publish, distribute, sublicense, and/or
  29  *     sell copies of the Software, and to permit persons to whom the
  30  *     Software is furnished to do so, subject to the following
  31  *     conditions:
  32  *
  33  *     The above copyright notice and this permission notice shall be
  34  *     included in all copies or substantial portions of the Software.
  35  *
  36  *     THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
  37  *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
  38  *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  39  *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  40  *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
  41  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  42  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  43  *     OTHER DEALINGS IN THE SOFTWARE.
  44  */
  45
  46 #include <dt-bindings/input/input.h>
  47
  48 / {
  49         gpio_keys {
  50                 compatible = "gpio-keys";
  51                 #address-cells = <1>;
  52                 #size-cells = <0>;
  53                 pinctrl-0 = <&pmx_power_switch>;
  54                 pinctrl-names = "default";
  55
  56                 power-on-switch {
  57                         label = "Power-on Switch";
  58                         linux,code = <KEY_RESERVED>;
  59                         linux,input-type = <5>;
  60                 };
  61
  62                 power-auto-switch {
  63                         label = "Power-auto Switch";
  64                         linux,code = <KEY_ESC>;
  65                         linux,input-type = <5>;
  66                 };
  67         };
  68
  69         gpio_leds {
  70                 compatible = "gpio-leds";
  71                 pinctrl-0 = <&pmx_led_power &pmx_led_alarm &pmx_led_info>;
  72                 pinctrl-names = "default";
  73
  74                 blue-power-led {
  75                         label = "linkstation:blue:power";
  76                         default-state = "keep";
  77                 };
  78
  79                 red-alarm-led {
  80                         label = "linkstation:red:alarm";
  81                 };
  82
  83                 amber-info-led {
  84                         label = "linkstation:amber:info";
  85                 };
  86         };
  87 };
  88
  89 &pinctrl {
  90         pmx_power_switch: pmx-power-switch {
  91                 marvell,function = "gpio";
  92         };
  93
  94         pmx_led_power: pmx-leds {
  95                 marvell,function = "gpio";
  96         };
  97
  98         pmx_led_alarm: pmx-leds {
  99                 marvell,function = "gpio";
 100         };
 101
 102         pmx_led_info: pmx-leds {
 103                 marvell,function = "gpio";
 104         };
 105 };