diff options
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index ae1a3c4b6b17..c8502f4a1cde 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2463,12 +2463,14 @@ static void drm_dp_send_link_address(struct drm_dp_mst_topology_mgr *mgr, kfree(txmsg); } -static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr, - struct drm_dp_mst_branch *mstb, - struct drm_dp_mst_port *port) +static int +drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr, + struct drm_dp_mst_branch *mstb, + struct drm_dp_mst_port *port) { - int len; + struct drm_dp_enum_path_resources_ack_reply *path_res; struct drm_dp_sideband_msg_tx *txmsg; + int len; int ret; txmsg = kzalloc(sizeof(*txmsg), GFP_KERNEL); @@ -2482,14 +2484,20 @@ static int drm_dp_send_enum_path_resources(struct drm_dp_mst_topology_mgr *mgr, ret = drm_dp_mst_wait_tx_reply(mstb, txmsg); if (ret > 0) { + path_res = &txmsg->reply.u.path_resources; + if (txmsg->reply.reply_type == DP_SIDEBAND_REPLY_NAK) { DRM_DEBUG_KMS("enum path resources nak received\n"); } else { - if (port->port_num != txmsg->reply.u.path_resources.port_number) + if (port->port_num != path_res->port_number) DRM_ERROR("got incorrect port in response\n"); - DRM_DEBUG_KMS("enum path resources %d: %d %d\n", txmsg->reply.u.path_resources.port_number, txmsg->reply.u.path_resources.full_payload_bw_number, - txmsg->reply.u.path_resources.avail_payload_bw_number); - port->available_pbn = txmsg->reply.u.path_resources.avail_payload_bw_number; + + DRM_DEBUG_KMS("enum path resources %d: %d %d\n", + path_res->port_number, + path_res->full_payload_bw_number, + path_res->avail_payload_bw_number); + port->available_pbn = + path_res->avail_payload_bw_number; } } |