0001 /*
0002 * Device Tree common file for gpio-fan on Buffalo Linkstation
0003 *
0004 * Copyright (C) 2015, 2016
0005 * Roger Shimizu <rogershimizu@gmail.com>
0006 *
0007 * This file is dual-licensed: you can use it either under the terms
0008 * of the GPL or the X11 license, at your option. Note that this dual
0009 * licensing only applies to this file, and not this project as a
0010 * whole.
0011 *
0012 * a) This file is free software; you can redistribute it and/or
0013 * modify it under the terms of the GNU General Public License as
0014 * published by the Free Software Foundation; either version 2 of the
0015 * License, or (at your option) any later version.
0016 *
0017 * This file is distributed in the hope that it will be useful,
0018 * but WITHOUT ANY WARRANTY; without even the implied warranty of
0019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
0020 * GNU General Public License for more details.
0021 *
0022 * Or, alternatively,
0023 *
0024 * b) Permission is hereby granted, free of charge, to any person
0025 * obtaining a copy of this software and associated documentation
0026 * files (the "Software"), to deal in the Software without
0027 * restriction, including without limitation the rights to use,
0028 * copy, modify, merge, publish, distribute, sublicense, and/or
0029 * sell copies of the Software, and to permit persons to whom the
0030 * Software is furnished to do so, subject to the following
0031 * conditions:
0032 *
0033 * The above copyright notice and this permission notice shall be
0034 * included in all copies or substantial portions of the Software.
0035 *
0036 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0037 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
0038 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0039 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
0040 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
0041 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
0042 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0043 * OTHER DEALINGS IN THE SOFTWARE.
0044 */
0045
0046 / {
0047 gpio_fan {
0048 compatible = "gpio-fan";
0049 pinctrl-0 = <&pmx_fan_low &pmx_fan_high &pmx_fan_lock>;
0050 pinctrl-names = "default";
0051
0052 gpio-fan,speed-map =
0053 <0 3
0054 1500 2
0055 3250 1
0056 5000 0>;
0057 };
0058 };
0059
0060 &pinctrl {
0061 pmx_fan_low: pmx-fan-low {
0062 marvell,function = "gpio";
0063 };
0064
0065 pmx_fan_high: pmx-fan-high {
0066 marvell,function = "gpio";
0067 };
0068
0069 pmx_fan_lock: pmx-fan-lock {
0070 marvell,function = "gpio";
0071 };
0072 };
