1 /*
2  * generic display timing functions
3  *
4  * Copyright (c) 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>, Pengutronix
5  *
6  * This file is released under the GPLv2
7  */
8 
9 #include <linux/errno.h>
10 #include <linux/export.h>
11 #include <video/display_timing.h>
12 #include <video/videomode.h>
13 
videomode_from_timing(const struct display_timing * dt,struct videomode * vm)14 void videomode_from_timing(const struct display_timing *dt,
15 			  struct videomode *vm)
16 {
17 	vm->pixelclock = dt->pixelclock.typ;
18 	vm->hactive = dt->hactive.typ;
19 	vm->hfront_porch = dt->hfront_porch.typ;
20 	vm->hback_porch = dt->hback_porch.typ;
21 	vm->hsync_len = dt->hsync_len.typ;
22 
23 	vm->vactive = dt->vactive.typ;
24 	vm->vfront_porch = dt->vfront_porch.typ;
25 	vm->vback_porch = dt->vback_porch.typ;
26 	vm->vsync_len = dt->vsync_len.typ;
27 
28 	vm->flags = dt->flags;
29 }
30 EXPORT_SYMBOL_GPL(videomode_from_timing);
31 
videomode_from_timings(const struct display_timings * disp,struct videomode * vm,unsigned int index)32 int videomode_from_timings(const struct display_timings *disp,
33 			  struct videomode *vm, unsigned int index)
34 {
35 	struct display_timing *dt;
36 
37 	dt = display_timings_get(disp, index);
38 	if (!dt)
39 		return -EINVAL;
40 
41 	videomode_from_timing(dt, vm);
42 
43 	return 0;
44 }
45 EXPORT_SYMBOL_GPL(videomode_from_timings);
46