diff options
Diffstat (limited to 'drivers/gpu/drm/drm_dp_mst_topology.c')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 653790805..aa6444877 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -914,6 +914,7 @@ static void drm_dp_destroy_port(struct kref *kref) /* no need to clean up vcpi * as if we have no connector we never setup a vcpi */ drm_dp_port_teardown_pdt(port, port->pdt); + port->pdt = DP_PEER_DEVICE_NONE; } kfree(port); } @@ -1159,7 +1160,9 @@ static void drm_dp_add_port(struct drm_dp_mst_branch *mstb, drm_dp_put_port(port); goto out; } - if (port->port_num >= DP_MST_LOGICAL_PORT_0) { + if ((port->pdt == DP_PEER_DEVICE_DP_LEGACY_CONV || + port->pdt == DP_PEER_DEVICE_SST_SINK) && + port->port_num >= DP_MST_LOGICAL_PORT_0) { port->cached_edid = drm_get_edid(port->connector, &port->aux.ddc); drm_mode_connector_set_tile_property(port->connector); } @@ -1493,11 +1496,8 @@ static void process_single_down_tx_qlock(struct drm_dp_mst_topology_mgr *mgr) WARN_ON(!mutex_is_locked(&mgr->qlock)); /* construct a chunk from the first msg in the tx_msg queue */ - if (list_empty(&mgr->tx_msg_downq)) { - mgr->tx_down_in_progress = false; + if (list_empty(&mgr->tx_msg_downq)) return; - } - mgr->tx_down_in_progress = true; txmsg = list_first_entry(&mgr->tx_msg_downq, struct drm_dp_sideband_msg_tx, next); ret = process_single_tx_qlock(mgr, txmsg, false); @@ -1512,10 +1512,6 @@ static void process_single_down_tx_qlock(struct drm_dp_mst_topology_mgr *mgr) txmsg->state = DRM_DP_SIDEBAND_TX_TIMEOUT; wake_up(&mgr->tx_waitq); } - if (list_empty(&mgr->tx_msg_downq)) { - mgr->tx_down_in_progress = false; - return; - } } /* called holding qlock */ @@ -1538,7 +1534,7 @@ static void drm_dp_queue_down_tx(struct drm_dp_mst_topology_mgr *mgr, { mutex_lock(&mgr->qlock); list_add_tail(&txmsg->next, &mgr->tx_msg_downq); - if (!mgr->tx_down_in_progress) + if (list_is_singular(&mgr->tx_msg_downq)) process_single_down_tx_qlock(mgr); mutex_unlock(&mgr->qlock); } @@ -2372,6 +2368,7 @@ EXPORT_SYMBOL(drm_dp_mst_hpd_irq); /** * drm_dp_mst_detect_port() - get connection status for an MST port + * @connector: DRM connector for this port * @mgr: manager for this port * @port: unverified pointer to a port * @@ -2887,7 +2884,7 @@ static void drm_dp_tx_work(struct work_struct *work) struct drm_dp_mst_topology_mgr *mgr = container_of(work, struct drm_dp_mst_topology_mgr, tx_work); mutex_lock(&mgr->qlock); - if (mgr->tx_down_in_progress) + if (!list_empty(&mgr->tx_msg_downq)) process_single_down_tx_qlock(mgr); mutex_unlock(&mgr->qlock); } @@ -2925,6 +2922,7 @@ static void drm_dp_destroy_connector_work(struct work_struct *work) mgr->cbs->destroy_connector(mgr, port->connector); drm_dp_port_teardown_pdt(port, port->pdt); + port->pdt = DP_PEER_DEVICE_NONE; if (!port->input && port->vcpi.vcpi > 0) { drm_dp_mst_reset_vcpi_slots(mgr, port); |