1/*
2 * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
3 *
4 * display timings of helpers
5 *
6 * This file is released under the GPLv2
7 */
8
9#ifndef __LINUX_OF_DISPLAY_TIMING_H
10#define __LINUX_OF_DISPLAY_TIMING_H
11
12struct device_node;
13struct display_timing;
14struct display_timings;
15
16#define OF_USE_NATIVE_MODE -1
17
18#ifdef CONFIG_OF
19int of_get_display_timing(struct device_node *np, const char *name,
20		struct display_timing *dt);
21struct display_timings *of_get_display_timings(struct device_node *np);
22int of_display_timings_exist(struct device_node *np);
23#else
24static inline int of_get_display_timing(struct device_node *np, const char *name,
25		struct display_timing *dt)
26{
27	return -ENOSYS;
28}
29static inline struct display_timings *of_get_display_timings(struct device_node *np)
30{
31	return NULL;
32}
33static inline int of_display_timings_exist(struct device_node *np)
34{
35	return -ENOSYS;
36}
37#endif
38
39#endif
40