viafb: split global index up

This is the first step to remove an artificial global index that was used
in two ways:

1. As a pseudo index in the mode table.  Pseudo as you had to search
   through the table to find the referenced entry.  This was replaced by
   using a pointer to the entry.

2. As a shortcut to compare a combination of horizontal and vertical
   resolution at the same time.

   This was replaced by a "(hres<<16) | vres" which is good enough for
   now and the near future.  If vres or hres become greater than 2^16 this
   might indeed cause problems but this solution allows to split this
   indexing mess up without the requirement to do even more code changes.

This is a big change that will allow more clean ups.  It should be a bit
faster but that is probably not relevant for normal operation.  No
regressions expected but as this is a relatively big step heavy testing is
appreciated.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/video/via/dvi.h b/drivers/video/via/dvi.h
index e1ec37fb0dc3..5ca2ffc15a3f 100644
--- a/drivers/video/via/dvi.h
+++ b/drivers/video/via/dvi.h
@@ -53,12 +53,12 @@
 #define     DEV_CONNECT_DVI     0x01
 #define     DEV_CONNECT_HDMI    0x02
 
-struct VideoModeTable *viafb_get_cea_mode_tbl_pointer(int Index);
 int viafb_dvi_sense(void);
 void viafb_dvi_disable(void);
 void viafb_dvi_enable(void);
 int viafb_tmds_trasmitter_identify(void);
 void viafb_init_dvi_size(void);
-void viafb_dvi_set_mode(int video_index, int mode_bpp, int set_iga);
+void viafb_dvi_set_mode(struct VideoModeTable *videoMode, int mode_bpp,
+        int set_iga);
 
 #endif /* __DVI_H__ */