From f8d0edde15702f1e3114d4afc80cb9cced2c754b Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 20 May 2011 04:34:23 -0400 Subject: [PATCH] drm/radeon/kms: improve DP detect logic Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_connectors.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index 9f3c6509d9d0..ac3165aeff36 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -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; + } } } -- 2.20.1