tree b1029d39308794bd4cd26d74c9019561df785ffd
parent b2dfcae3cc6802e897556e09541080309cfdec60
author Christopher Harvey <charvey@matrox.com> 1365799339 +0000
committer Dave Airlie <airlied@redhat.com> 1368411396 +1000

drm/mgag200: Don't change unrelated registers during modeset

Registers in indices below 0x18 are totally unrelated to modesetting,
so don't write 0's, or anything else into them on modeset. Most of
these registers are hardware cursor related, so this existing code
interferes with hardware cursor development.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Tested-by: Julia Lemire <jlemire@matrox.com>
Acked-by: Julia Lemire <jlemire@matrox.com>
Acked-by: Mathieu Larouche <mathieu.larouche@matrox.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>