diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_connectors.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_connectors.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index a7bdcc7..9f3c650 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -1068,6 +1068,77 @@ static int radeon_dp_get_modes(struct drm_connector *connector) return ret; } +bool radeon_connector_encoder_is_dp_bridge(struct drm_connector *connector) +{ + struct drm_mode_object *obj; + struct drm_encoder *encoder; + struct radeon_encoder *radeon_encoder; + int i; + bool found = false; + + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { + if (connector->encoder_ids[i] == 0) + break; + + obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER); + if (!obj) + continue; + + encoder = obj_to_encoder(obj); + radeon_encoder = to_radeon_encoder(encoder); + + switch (radeon_encoder->encoder_id) { + case ENCODER_OBJECT_ID_TRAVIS: + case ENCODER_OBJECT_ID_NUTMEG: + found = true; + break; + default: + break; + } + } + + return found; +} + +bool radeon_connector_encoder_is_hbr2(struct drm_connector *connector) +{ + struct drm_mode_object *obj; + struct drm_encoder *encoder; + struct radeon_encoder *radeon_encoder; + int i; + bool found = false; + + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { + if (connector->encoder_ids[i] == 0) + break; + + obj = drm_mode_object_find(connector->dev, connector->encoder_ids[i], DRM_MODE_OBJECT_ENCODER); + if (!obj) + continue; + + encoder = obj_to_encoder(obj); + radeon_encoder = to_radeon_encoder(encoder); + if (radeon_encoder->caps & ATOM_ENCODER_CAP_RECORD_HBR2) + found = true; + } + + return found; +} + +bool radeon_connector_is_dp12_capable(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct radeon_device *rdev = dev->dev_private; + + if (ASIC_IS_DCE5(rdev) && + (rdev->clock.dp_extclk >= 53900) && + radeon_connector_encoder_is_hbr2(connector)) { + return true; + } + + return false; +} + static enum drm_connector_status radeon_dp_detect(struct drm_connector *connector, bool force) { |
