drm/radeon/kms: fix DDIA enable on some rs690 systems
authorAlex Deucher <alexander.deucher@amd.com>
Thu, 22 Sep 2011 14:47:23 +0000 (10:47 -0400)
committerDave Airlie <airlied@redhat.com>
Fri, 23 Sep 2011 13:02:18 +0000 (14:02 +0100)
commitfdfc61594e6de21c23f955818ef78bcab9bafe40
tree5d09bbe04ddd4a881a3008ec102d824fca41cd71
parentd9ad77ebfd3a304306f9f18ff3f9e522da075e27
drm/radeon/kms: fix DDIA enable on some rs690 systems

DVOOutputControl checks the value of of bios scratch reg 3
on some tables and assumes the encoder is already enabled
if the DFP2_ACTIVE bit is set.  Clear that bit so the table
sets the DDIA enable bit properly.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/radeon_encoders.c