viafb: avoid refresh and mode lookup in set_par

As check_var already ensures that the mode is valid there is no need
to do those expensive lookups here again. The only thing that might
change is that the deprecated interface could report slightly
different refresh rates due to rounding errors.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index 7529340f4ea25fd3576f9884f77c215271455ae1..0c8837565bc719cb745022b6918ba3b1e9d562a4 100644 (file)
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -287,26 +287,22 @@ static int viafb_set_par(struct fb_info *info)
                        viafb_second_yres, viafb_bpp1, 1);
        }
 
-       refresh = viafb_get_refresh(info->var.xres, info->var.yres,
-               get_var_refresh(&info->var));
-       if (viafb_get_best_mode(viafbinfo->var.xres, viafbinfo->var.yres,
-               refresh)) {
-               if (viafb_dual_fb && viapar->iga_path == IGA2) {
-                       viafb_bpp1 = info->var.bits_per_pixel;
-                       viafb_refresh1 = refresh;
-               } else {
-                       viafb_bpp = info->var.bits_per_pixel;
-                       viafb_refresh = refresh;
-               }
-
-               if (info->var.accel_flags & FB_ACCELF_TEXT)
-                       info->flags &= ~FBINFO_HWACCEL_DISABLED;
-               else
-                       info->flags |= FBINFO_HWACCEL_DISABLED;
-               viafb_setmode();
-               viafb_pan_display(&info->var, info);
+       refresh = get_var_refresh(&info->var);
+       if (viafb_dual_fb && viapar->iga_path == IGA2) {
+               viafb_bpp1 = info->var.bits_per_pixel;
+               viafb_refresh1 = refresh;
+       } else {
+               viafb_bpp = info->var.bits_per_pixel;
+               viafb_refresh = refresh;
        }
 
+       if (info->var.accel_flags & FB_ACCELF_TEXT)
+               info->flags &= ~FBINFO_HWACCEL_DISABLED;
+       else
+               info->flags |= FBINFO_HWACCEL_DISABLED;
+       viafb_setmode();
+       viafb_pan_display(&info->var, info);
+
        return 0;
 }