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drm/radeon/kms: fix tv dac conflict resolver

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On systems with the tv dac shared between DVI and TV,
we can only use the dac for one of the connectors.
However, when using a digital monitor on the DVI port,
you can use the dac for the TV connector just fine.
Check the use_digital status when resolving the conflict.

Fixes fdo bug 27649, possibly others.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2010-04-15 13:31:12 -04:00 committed by Dave Airlie
parent 16823d16f5
commit 08d075116d
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -162,12 +162,14 @@ radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
{
struct drm_device *dev = connector->dev;
struct drm_connector *conflict;
struct radeon_connector *radeon_conflict;
int i;
list_for_each_entry(conflict, &dev->mode_config.connector_list, head) {
if (conflict == connector)
continue;
radeon_conflict = to_radeon_connector(conflict);
for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
if (conflict->encoder_ids[i] == 0)
break;
@ -177,6 +179,9 @@ radeon_connector_analog_encoder_conflict_solve(struct drm_connector *connector,
if (conflict->status != connector_status_connected)
continue;
if (radeon_conflict->use_digital)
continue;
if (priority == true) {
DRM_INFO("1: conflicting encoders switching off %s\n", drm_get_connector_name(conflict));
DRM_INFO("in favor of %s\n", drm_get_connector_name(connector));