wireless/ti/wilink_platform_data.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * This file is part of wl12xx
0004  *
0005  * Copyright (C) 2010-2011 Texas Instruments, Inc.
0006  */
0007
0008 #include <linux/module.h>
0009 #include <linux/err.h>
0010 #include <linux/wl12xx.h>
0011
0012 static struct wl1251_platform_data *wl1251_platform_data;
0013
0014 int __init wl1251_set_platform_data(const struct wl1251_platform_data *data)
0015 {
0016     if (wl1251_platform_data)
0017         return -EBUSY;
0018     if (!data)
0019         return -EINVAL;
0020
0021     wl1251_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
0022     if (!wl1251_platform_data)
0023         return -ENOMEM;
0024
0025     return 0;
0026 }
0027
0028 struct wl1251_platform_data *wl1251_get_platform_data(void)
0029 {
0030     if (!wl1251_platform_data)
0031         return ERR_PTR(-ENODEV);
0032
0033     return wl1251_platform_data;
0034 }
0035 EXPORT_SYMBOL(wl1251_get_platform_data);