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drm/radeon/kms: improve DP detect logic

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Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2011-05-20 04:34:23 -04:00 committed by Dave Airlie
parent d7fa8bb385
commit f8d0edde15
1 changed files with 13 additions and 5 deletions
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18
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -1142,6 +1142,8 @@ bool radeon_connector_is_dp12_capable(struct drm_connector *connector)
static enum drm_connector_status
radeon_dp_detect(struct drm_connector *connector, bool force)
{
struct drm_device *dev = connector->dev;
struct radeon_device *rdev = dev->dev_private;
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
enum drm_connector_status ret = connector_status_disconnected;
struct radeon_connector_atom_dig *radeon_dig_connector = radeon_connector->con_priv;
@ -1164,12 +1166,18 @@ radeon_dp_detect(struct drm_connector *connector, bool force)
ATOM_TRANSMITTER_ACTION_POWER_OFF);
} else {
radeon_dig_connector->dp_sink_type = radeon_dp_getsinktype(radeon_connector);
if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
if (radeon_dp_getdpcd(radeon_connector))
ret = connector_status_connected;
if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd)) {
ret = connector_status_connected;
if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
radeon_dp_getdpcd(radeon_connector);
} else {
if (radeon_ddc_probe(radeon_connector))
ret = connector_status_connected;
if (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) {
if (radeon_dp_getdpcd(radeon_connector))
ret = connector_status_connected;
} else {
if (radeon_ddc_probe(radeon_connector))
ret = connector_status_connected;
}
}
}