Merge tag 'drm-fixes-2018-10-12-1' of git://anongit.freedesktop.org/drm/drm
Dave writes:
"drm fixes for 4.19-rc8
single nouveau runtime reference and mst change"
* tag 'drm-fixes-2018-10-12-1' of git://anongit.freedesktop.org/drm/drm:
drm/nouveau/drm/nouveau: Grab runtime PM ref in nv50_mstc_detect()
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 5691dfa..041e7da 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -900,9 +900,22 @@
nv50_mstc_detect(struct drm_connector *connector, bool force)
{
struct nv50_mstc *mstc = nv50_mstc(connector);
+ enum drm_connector_status conn_status;
+ int ret;
+
if (!mstc->port)
return connector_status_disconnected;
- return drm_dp_mst_detect_port(connector, mstc->port->mgr, mstc->port);
+
+ ret = pm_runtime_get_sync(connector->dev->dev);
+ if (ret < 0 && ret != -EACCES)
+ return connector_status_disconnected;
+
+ conn_status = drm_dp_mst_detect_port(connector, mstc->port->mgr,
+ mstc->port);
+
+ pm_runtime_mark_last_busy(connector->dev->dev);
+ pm_runtime_put_autosuspend(connector->dev->dev);
+ return conn_status;
}
static void
