commit 5db0dfb66cff6e9376ecbb457cdcfe6bd432005f
author Ramakant Singh <ramaka@codeaurora.org> Wed Aug 23 12:34:57 2017 +0530
committer Gerrit - the friendly Code Review server <code-review@localhost> Mon Aug 28 05:28:05 2017 -0700
tree e36de4ca96b18a1eb15eb8637aa5055ed7218d33
parent 7d5e6d27e2108c39a80120eaa71ad9c28b7b4215

sdm: Fix CPU hint toggling issue

Do not toggle CPU hint for draw cycles
with 0 updating layers during video
playback session.
Change-Id: I508f782f911ea4def44209a1b1c34b0c24a47f28
Crs-fixed: 1038379

sdm/libs/hwc2/hwc_display_primary.cpp

diff --git a/sdm/libs/hwc2/hwc_display_primary.cpp b/sdm/libs/hwc2/hwc_display_primary.cpp
index 4079cbc..1e19417 100644
--- a/sdm/libs/hwc2/hwc_display_primary.cpp
+++ b/sdm/libs/hwc2/hwc_display_primary.cpp
@@ -190,8 +190,11 @@
     layer_stack_.flags.post_processed_output = post_processed_output_;
   }
 
-  bool one_updating_layer = SingleLayerUpdating();
-  ToggleCPUHint(one_updating_layer);
+  uint32_t num_updating_layers = GetUpdatingLayersCount();
+  bool one_updating_layer = (num_updating_layers == 1);
+  if (num_updating_layers != 0) {
+    ToggleCPUHint(one_updating_layer);
+  }
 
   uint32_t refresh_rate = GetOptimalRefreshRate(one_updating_layer);
   bool final_rate = force_refresh_rate_ ? true : false;