• Florian Tobias Schandinat's avatar
    viafb: rework color setting · 415559fb
    Florian Tobias Schandinat authored
    This is a rewritten version of viafb_setcolreg.  The hardware register
    writes were split up and moved to hw.c where they belong as this is really
    low level stuff.  It was made dual fb aware.
    
    Furthermore viafb_setcmap was removed as the problem with 8bpp originated
    from a bug in writing multiple color registers at once.  The removal of
    viafb_setcmap might introduce a small performance regression but its
    certainly better to receive the correct result a bit slower than a garbled
    picture fast.  It should give us a working 8bpp mode and is more
    extensible than the old hardcoded code.  No other regressions are expected
    but as the hardware might be a bit picky it might cause some regressions
    in 8bpp mode on some hardware although I doubt that.
    Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
    Cc: Joseph Chan <JosephChan@via.com.tw>
    Cc: Scott Fang <ScottFang@viatech.com.cn>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    415559fb
viafbdev.c 60.5 KB