drm/linux: Improve request_firmware() compatibility
[dragonfly.git] / sys / dev / drm / include / linux / firmware.h
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1/*
2 * Copyright (c) 2015 Michael Neumann
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef _LINUX_FIRMWARE_H_
28#define _LINUX_FIRMWARE_H_
29
30#include <sys/bus.h>
31#include <sys/firmware.h>
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32#include <linux/types.h>
33#include <linux/compiler.h>
34#include <linux/gfp.h>
35#include <linux/device.h>
04e8519d 36
04e8519d 37static inline int
71187b16 38request_firmware(const struct firmware **fw, const char *name, __unused struct device *dev) {
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39 *fw = firmware_get(name);
40 if (*fw) {
41 return 0;
42 }
fcd4983f 43 return -ENOENT;
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44}
45
46static inline void
47release_firmware(const struct firmware *fw) {
fcd4983f 48 if (fw != NULL) {
49 firmware_put(fw, FIRMWARE_UNLOAD);
50 }
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51}
52
53#endif /* _LINUX_FIRMWARE_H_ */