drm/radeon/kms: fix dp_detect handling for DP bridge chips
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 4 Oct 2011 16:23:24 +0000 (12:23 -0400)
committerDave Airlie <airlied@redhat.com>
Wed, 5 Oct 2011 09:31:40 +0000 (10:31 +0100)
commit6777a4f6898a53974ef7fe7ce09ec41fae0f32db
treee5680a33625e3a69d78c11e1fb56849e2c573beb
parent4f332844cc87c5f99c5300f788abbe8a8c731390
drm/radeon/kms: fix dp_detect handling for DP bridge chips

The HPD pin is not reliable for detecting whether a monitor
is connected or not.  Skip HPD and just use DDC or load
detection.

Fixes phantom VGA connected bugs.

[Michel: fixes phantom VGA bugs on his llano system.]

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/radeon_connectors.c