bool dm_helpers_dp_mst_send_payload_allocation( struct dc_context *ctx, const struct dc_stream_state *stream, bool enable) { struct amdgpu_dm_connector *aconnector; struct drm_dp_mst_topology_mgr *mst_mgr; struct drm_dp_mst_port *mst_port; int ret; aconnector = stream->sink->priv; if (!aconnector || !aconnector->mst_port) return false; mst_port = aconnector->port; mst_mgr = &aconnector->mst_port->mst_mgr; if (!mst_mgr->mst_state) return false; ret = drm_dp_update_payload_part2(mst_mgr); if (ret) return false; if (!enable) drm_dp_mst_deallocate_vcpi(mst_mgr, mst_port); return true; }
static void intel_mst_post_disable_dp(struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); struct intel_digital_port *intel_dig_port = intel_mst->primary; struct intel_dp *intel_dp = &intel_dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector); /* this can fail */ drm_dp_check_act_status(&intel_dp->mst_mgr); /* and this can also fail */ drm_dp_update_payload_part2(&intel_dp->mst_mgr); drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port); /* * Power down mst path before disabling the port, otherwise we end * up getting interrupts from the sink upon detecting link loss. */ drm_dp_send_power_updown_phy(&intel_dp->mst_mgr, connector->port, false); intel_dp->active_mst_links--; intel_mst->connector = NULL; if (intel_dp->active_mst_links == 0) { intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); intel_dig_port->base.post_disable(&intel_dig_port->base, old_crtc_state, NULL); } DRM_DEBUG_KMS("active links %d\n", intel_dp->active_mst_links); }
static void intel_mst_post_disable_dp(struct intel_encoder *encoder, struct intel_crtc_state *old_crtc_state, struct drm_connector_state *old_conn_state) { struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base); struct intel_digital_port *intel_dig_port = intel_mst->primary; struct intel_dp *intel_dp = &intel_dig_port->dp; struct intel_connector *connector = to_intel_connector(old_conn_state->connector); DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links); /* this can fail */ drm_dp_check_act_status(&intel_dp->mst_mgr); /* and this can also fail */ drm_dp_update_payload_part2(&intel_dp->mst_mgr); drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, connector->port); intel_dp->active_mst_links--; intel_mst->connector = NULL; if (intel_dp->active_mst_links == 0) { intel_dig_port->base.post_disable(&intel_dig_port->base, NULL, NULL); intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF); } }