tree 4a79124a75fbb9132bb911a5a5cb31b0efa15687
parent 7f8c54d20b258acf291dd4490b0e22fa10b2a17f
author Benjamin Herrenschmidt <benh@kernel.crashing.org> 1131354032 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1131378829 -0800

[PATCH] nvidiafb: Add flat panel dither support

nvidiafb didn't fully hook-up the code it borrowed from X for doing flat
panel dithering (this is useful for 6 bits panels).  This adds a driver
option to force it, and by default "reads" the current value from the chip
to get the firmware setting.  It significantly improves the quality of
images on the iMac G5 I have here (though the X driver doesn't yet "read"
the current value and defaults to 0, so you have to add Option "FBDither"
"true" to your X config file to get that, I'll try to fix X.org to "read"
the default unless specified asap).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "Antonino A. Daplas" <adaplas@hotpop.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>