[PATCH] fbdev: Add helper to get an appropriate initial mode

Add new helper, fb_find_best_display(), which will search the modelist for the
best mode for the attached display.  This requires an EDID block that is
converted to struct fb_monspecs and a private modelist.  The search will be
done in this manner:

- if 1st detailed timing is preferred, use that
- else if dimensions of the display are known, use that to estimate xres and
- else if modelist has detailed timings, use the first detailed timing
- else, use the very first entry from the modelist

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 68a787914d85..e7ff98e395f6 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -902,6 +902,8 @@ extern struct fb_videomode *fb_find_nearest_mode(struct fb_videomode *mode,
 extern void fb_destroy_modelist(struct list_head *head);
 extern void fb_videomode_to_modelist(struct fb_videomode *modedb, int num,
                                      struct list_head *head);
+extern struct fb_videomode *fb_find_best_display(struct fb_monspecs *specs,
+                                                 struct list_head *head);
 
 /* drivers/video/fbcmap.c */
 extern int fb_alloc_cmap(struct fb_cmap *cmap, int len, int transp);