Displaying 2 results from an estimated 2 matches for "6dc2dde5b672".
2018 Feb 14
1
[PATCH v2] drm: Allow determining if current task is output poll worker
....com>
Signed-off-by: Lukas Wunner <lukas at wunner.de>
---
drivers/gpu/drm/drm_probe_helper.c | 20 ++++++++++++++++++++
include/drm/drm_crtc_helper.h | 1 +
2 files changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c
index 6dc2dde5b672..7a6b2dc08913 100644
--- a/drivers/gpu/drm/drm_probe_helper.c
+++ b/drivers/gpu/drm/drm_probe_helper.c
@@ -654,6 +654,26 @@ static void output_poll_execute(struct work_struct *work)
schedule_delayed_work(delayed_work, DRM_OUTPUT_POLL_PERIOD);
}
+/**
+ * drm_kms_helper_is_poll_worker - is %cur...
2018 Feb 11
19
[PATCH 0/5] Fix deadlock on runtime suspend in DRM drivers
Fix a deadlock on hybrid graphics laptops that's been present since 2013:
DRM drivers poll connectors in 10 sec intervals. The poll worker is
stopped on ->runtime_suspend with cancel_delayed_work_sync(). However
the poll worker invokes the DRM drivers' ->detect callbacks, which call
pm_runtime_get_sync(). If the poll worker starts after runtime suspend
has begun,