From dc28b3706b61ba1326658d96400fe55faf3dcb3e Mon Sep 17 00:00:00 2001
From: Alec Mouri <alecmouri@google.com>
Date: Thu, 18 Apr 2019 21:17:13 -0700
Subject: Support repurposing idle timer to work with kernel timer.

Idle timer would instead enable/disable hw vsyncs in accordance with
inactivity.

Bug: 130684082
Test: systrace
Change-Id: I289600fc41b7ded863c9486cf6c2ab6155b06550
---
 services/surfaceflinger/SurfaceFlinger.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'services/surfaceflinger/SurfaceFlinger.cpp')

diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 661c889ac2..897f7b4e64 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -704,6 +704,10 @@ void SurfaceFlinger::init() {
                 Mutex::Autolock lock(mStateLock);
                 setRefreshRateTo(type, event);
             });
+    mScheduler->setGetVsyncPeriodCallback([this] {
+        Mutex::Autolock lock(mStateLock);
+        return getVsyncPeriod();
+    });
 
     mRefreshRateConfigs.populate(getHwComposer().getConfigs(*display->getId()));
     mRefreshRateStats.setConfigMode(getHwComposer().getActiveConfigIndex(*display->getId()));
-- 
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