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single nouveau runtime reference and mst change 

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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()
This commit is contained in:
Greg Kroah-Hartman 2018-10-12 12:53:48 +02:00
parent c789174bde 5ba15878f2
commit 62d2e531d7
1 changed files with 14 additions and 1 deletions
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15
drivers/gpu/drm/nouveau/dispnv50/disp.c
View File

@ -900,9 +900,22 @@ static enum drm_connector_status
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