subdev/therm/fannil.c

0001 /*
0002  * Copyright 2012 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Ben Skeggs
0023  */
0024 #include "priv.h"
0025
0026 static int
0027 nvkm_fannil_get(struct nvkm_therm *therm)
0028 {
0029     return -ENODEV;
0030 }
0031
0032 static int
0033 nvkm_fannil_set(struct nvkm_therm *therm, int percent)
0034 {
0035     return -ENODEV;
0036 }
0037
0038 int
0039 nvkm_fannil_create(struct nvkm_therm *therm)
0040 {
0041     struct nvkm_fan *priv;
0042
0043     priv = kzalloc(sizeof(*priv), GFP_KERNEL);
0044     therm->fan = priv;
0045     if (!priv)
0046         return -ENOMEM;
0047
0048     priv->type = "none / external";
0049     priv->get = nvkm_fannil_get;
0050     priv->set = nvkm_fannil_set;
0051     return 0;
0052 }