drivers/video/videomode.c

   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
  14 int videomode_from_timing(const struct display_timings *disp,
  15                           struct videomode *vm, unsigned int index)
  16 {
  17         struct display_timing *dt;
  18
  19         dt = display_timings_get(disp, index);
  20         if (!dt)
  21                 return -EINVAL;
  22
  23         vm->pixelclock = display_timing_get_value(&dt->pixelclock, TE_TYP);
  24         vm->hactive = display_timing_get_value(&dt->hactive, TE_TYP);
  25         vm->hfront_porch = display_timing_get_value(&dt->hfront_porch, TE_TYP);
  26         vm->hback_porch = display_timing_get_value(&dt->hback_porch, TE_TYP);
  27         vm->hsync_len = display_timing_get_value(&dt->hsync_len, TE_TYP);
  28
  29         vm->vactive = display_timing_get_value(&dt->vactive, TE_TYP);
  30         vm->vfront_porch = display_timing_get_value(&dt->vfront_porch, TE_TYP);
  31         vm->vback_porch = display_timing_get_value(&dt->vback_porch, TE_TYP);
  32         vm->vsync_len = display_timing_get_value(&dt->vsync_len, TE_TYP);
  33
  34         vm->dmt_flags = dt->dmt_flags;
  35         vm->data_flags = dt->data_flags;
  36
  37         return 0;
  38 }
  39 EXPORT_SYMBOL_GPL(videomode_from_timing);