diff --git a/services/surfaceflinger/Scheduler/LayerInfo.cpp b/services/surfaceflinger/Scheduler/LayerInfo.cpp
index 4b4cdae..c00c2a0 100644
--- a/services/surfaceflinger/Scheduler/LayerInfo.cpp
+++ b/services/surfaceflinger/Scheduler/LayerInfo.cpp
@@ -232,6 +232,8 @@
     if (!isFrequent(now)) {
         ALOGV("%s is infrequent", mName.c_str());
         mLastRefreshRate.animatingOrInfrequent = true;
+        // Infrequent layers vote for mininal refresh rate for
+        // battery saving purposes and also to prevent b/135718869.
         return {LayerHistory::LayerVoteType::Min, Fps(0.0f)};
     }