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 
12 struct device_node;
13 struct display_timing;
14 struct display_timings;
15 
16 #define OF_USE_NATIVE_MODE -1
17 
18 #ifdef CONFIG_OF
19 int of_get_display_timing(struct device_node *np, const char *name,
20 		struct display_timing *dt);
21 struct display_timings *of_get_display_timings(struct device_node *np);
22 int of_display_timings_exist(struct device_node *np);
23 #else
24 static inline int of_get_display_timing(struct device_node *np, const char *name,
25 		struct display_timing *dt)
26 {
27 	return -ENOSYS;
28 }
29 static inline struct display_timings *of_get_display_timings(struct device_node *np)
30 {
31 	return NULL;
32 }
33 static inline int of_display_timings_exist(struct device_node *np)
34 {
35 	return -ENOSYS;
36 }
37 #endif
38 
39 #endif
40