viafb: modetable conversion

This patch converts the modetables used in viafb to
- remove the strange thing that sync_end and blanking_end contained
  the length and not the absolute value
- remove hundreds of useless defines
- use fb_videomode and not our own definition so modes defined in
  the subsystem and received via EDID are compatible with ours

As the modes are now stored in a flat structure and no longer in a
tree like thing the lookup time was increased but as it is a rare
event anyway it shouldn't matter. Otherwise the behaviour should be
the same as before.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
diff --git a/drivers/video/via/hw.h b/drivers/video/via/hw.h
index cacedc1..6be243c 100644
--- a/drivers/video/via/hw.h
+++ b/drivers/video/via/hw.h
@@ -637,6 +637,8 @@
 extern int viafb_DVI_ON;
 extern int viafb_hotplug;
 
+struct display_timing var_to_timing(const struct fb_var_screeninfo *var,
+	u16 cxres, u16 cyres);
 void viafb_fill_crtc_timing(const struct fb_var_screeninfo *var,
 	u16 cxres, u16 cyres, int iga);
 void viafb_set_vclock(u32 CLK, int set_iga);
@@ -660,7 +662,7 @@
 
 int viafb_setmode(void);
 void viafb_fill_var_timing_info(struct fb_var_screeninfo *var,
-	struct crt_mode_table *mode);
+	const struct fb_videomode *mode);
 void __devinit viafb_init_chip_info(int chip_type);
 void __devinit viafb_init_dac(int set_iga);
 int viafb_get_refresh(int hres, int vres, u32 float_refresh);