Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / net / wireless / ti / wilink_platform_data.c
1 /*
2  * This file is part of wl12xx
3  *
4  * Copyright (C) 2010-2011 Texas Instruments, Inc.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * version 2 as published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18  * 02110-1301 USA
19  *
20  */
21
22 #include <linux/module.h>
23 #include <linux/err.h>
24 #include <linux/wl12xx.h>
25
26 static struct wl1251_platform_data *wl1251_platform_data;
27
28 int __init wl1251_set_platform_data(const struct wl1251_platform_data *data)
29 {
30         if (wl1251_platform_data)
31                 return -EBUSY;
32         if (!data)
33                 return -EINVAL;
34
35         wl1251_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
36         if (!wl1251_platform_data)
37                 return -ENOMEM;
38
39         return 0;
40 }
41
42 struct wl1251_platform_data *wl1251_get_platform_data(void)
43 {
44         if (!wl1251_platform_data)
45                 return ERR_PTR(-ENODEV);
46
47         return wl1251_platform_data;
48 }
49 EXPORT_SYMBOL(wl1251_get_platform_data);