drm/msm/sde: reset drm state on suspend/resume
Explicitly disable connector DPMS and CRTC active states on
system suspend, and restore the previous state during a
system resume. This allows the underlying drivers to trigger
a DPMS callback for handling any panel related power disables
while still preserving the DRM atomic state.
CRs-Fixed: 2019307
Change-Id: Ib9933e4bc8b43c64def777b081d4315e5dbb7365
Signed-off-by: Clarence Ip <cip@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index d6ba63c..e65af81 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -472,6 +472,9 @@
*/
struct task_struct *struct_mutex_task;
+ /* saved atomic state during system suspend */
+ struct drm_atomic_state *suspend_state;
+
/* list of clients waiting for events */
struct list_head client_event_list;