diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index 5b4af4a..e05c985 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -308,14 +308,10 @@
     mLayerHistory.incrementCounter();
 }
 
-void Scheduler::setExpiredIdleTimerCallback(const ExpiredIdleTimerCallback& expiredTimerCallback) {
+void Scheduler::setChangeRefreshRateCallback(
+        const ChangeRefreshRateCallback& changeRefreshRateCallback) {
     std::lock_guard<std::mutex> lock(mCallbackLock);
-    mExpiredTimerCallback = expiredTimerCallback;
-}
-
-void Scheduler::setResetIdleTimerCallback(const ResetIdleTimerCallback& resetTimerCallback) {
-    std::lock_guard<std::mutex> lock(mCallbackLock);
-    mResetTimerCallback = resetTimerCallback;
+    mChangeRefreshRateCallback = changeRefreshRateCallback;
 }
 
 void Scheduler::updateFrameSkipping(const int64_t skipCount) {
@@ -414,16 +410,18 @@
 
 void Scheduler::resetTimerCallback() {
     std::lock_guard<std::mutex> lock(mCallbackLock);
-    if (mResetTimerCallback) {
-        mResetTimerCallback();
+    if (mChangeRefreshRateCallback) {
+        // We do not notify the applications about config changes when idle timer is reset.
+        mChangeRefreshRateCallback(RefreshRateType::PERFORMANCE, ConfigEvent::None);
         ATRACE_INT("ExpiredIdleTimer", 0);
     }
 }
 
 void Scheduler::expiredTimerCallback() {
     std::lock_guard<std::mutex> lock(mCallbackLock);
-    if (mExpiredTimerCallback) {
-        mExpiredTimerCallback();
+    if (mChangeRefreshRateCallback) {
+        // We do not notify the applications about config changes when idle timer expires.
+        mChangeRefreshRateCallback(RefreshRateType::DEFAULT, ConfigEvent::None);
         ATRACE_INT("ExpiredIdleTimer", 1);
     }
 }
diff --git a/services/surfaceflinger/Scheduler/Scheduler.h b/services/surfaceflinger/Scheduler/Scheduler.h
index 7f113e7..f8667d0 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.h
+++ b/services/surfaceflinger/Scheduler/Scheduler.h
@@ -28,6 +28,7 @@
 #include "IdleTimer.h"
 #include "InjectVSyncSource.h"
 #include "LayerHistory.h"
+#include "RefreshRateConfigs.h"
 #include "SchedulerUtils.h"
 
 namespace android {
@@ -36,9 +37,19 @@
 
 class Scheduler {
 public:
-    using ExpiredIdleTimerCallback = std::function<void()>;
+    // Enum to keep track of whether we trigger event to notify choreographer of config changes.
+    enum class ConfigEvent { None, Changed };
+
+    // logical or operator with the semantics of at least one of the events is Changed
+    friend ConfigEvent operator|(const ConfigEvent& first, const ConfigEvent& second) {
+        if (first == ConfigEvent::Changed) return ConfigEvent::Changed;
+        if (second == ConfigEvent::Changed) return ConfigEvent::Changed;
+        return ConfigEvent::None;
+    }
+
+    using RefreshRateType = scheduler::RefreshRateConfigs::RefreshRateType;
+    using ChangeRefreshRateCallback = std::function<void(RefreshRateType, ConfigEvent)>;
     using GetVsyncPeriod = std::function<nsecs_t()>;
-    using ResetIdleTimerCallback = std::function<void()>;
 
     // Enum to indicate whether to start the transaction early, or at vsync time.
     enum class TransactionStart { EARLY, NORMAL };
@@ -135,10 +146,8 @@
                                      const std::string layerName);
     // Increments counter in the layer history to indicate that SF has started a new frame.
     void incrementFrameCounter();
-    // Callback that gets invoked once the idle timer expires.
-    void setExpiredIdleTimerCallback(const ExpiredIdleTimerCallback& expiredTimerCallback);
-    // Callback that gets invoked once the idle timer is reset.
-    void setResetIdleTimerCallback(const ResetIdleTimerCallback& resetTimerCallback);
+    // Callback that gets invoked when Scheduler wants to change the refresh rate.
+    void setChangeRefreshRateCallback(const ChangeRefreshRateCallback& changeRefreshRateCallback);
     // Returns relevant information about Scheduler for dumpsys purposes.
     std::string doDump();
 
@@ -216,8 +225,7 @@
     std::unique_ptr<scheduler::IdleTimer> mIdleTimer;
 
     std::mutex mCallbackLock;
-    ExpiredIdleTimerCallback mExpiredTimerCallback GUARDED_BY(mCallbackLock);
-    ExpiredIdleTimerCallback mResetTimerCallback GUARDED_BY(mCallbackLock);
+    ChangeRefreshRateCallback mChangeRefreshRateCallback GUARDED_BY(mCallbackLock);
 };
 
 } // namespace android
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 2017f46..96f7d1e 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -571,11 +571,11 @@
         if (mUse90Hz) {
             mPhaseOffsets->setRefreshRateType(
                     scheduler::RefreshRateConfigs::RefreshRateType::PERFORMANCE);
-            setRefreshRateTo(RefreshRateType::PERFORMANCE, ConfigEvent::None);
+            setRefreshRateTo(RefreshRateType::PERFORMANCE, Scheduler::ConfigEvent::None);
         } else {
             mPhaseOffsets->setRefreshRateType(
                     scheduler::RefreshRateConfigs::RefreshRateType::DEFAULT);
-            setRefreshRateTo(RefreshRateType::DEFAULT, ConfigEvent::None);
+            setRefreshRateTo(RefreshRateType::DEFAULT, Scheduler::ConfigEvent::None);
         }
     }));
 }
@@ -700,14 +700,11 @@
     }
 
     if (mUse90Hz) {
-        mScheduler->setExpiredIdleTimerCallback([this] {
-            Mutex::Autolock lock(mStateLock);
-            setRefreshRateTo(RefreshRateType::DEFAULT, ConfigEvent::None);
-        });
-        mScheduler->setResetIdleTimerCallback([this] {
-            Mutex::Autolock lock(mStateLock);
-            setRefreshRateTo(RefreshRateType::PERFORMANCE, ConfigEvent::None);
-        });
+        mScheduler->setChangeRefreshRateCallback(
+                [this](RefreshRateType type, Scheduler::ConfigEvent event) {
+                    Mutex::Autolock lock(mStateLock);
+                    setRefreshRateTo(type, event);
+                });
     }
     mRefreshRateConfigs[*display->getId()] = std::make_shared<scheduler::RefreshRateConfigs>(
             getHwComposer().getConfigs(*display->getId()));
@@ -917,7 +914,7 @@
 }
 
 void SurfaceFlinger::setDesiredActiveConfig(const sp<IBinder>& displayToken, int mode,
-                                            ConfigEvent event) {
+                                            Scheduler::ConfigEvent event) {
     ATRACE_CALL();
 
     // Lock is acquired by setRefreshRateTo.
@@ -941,7 +938,7 @@
     // config twice. However event generation config might have changed so we need to update it
     // accordingly
     std::lock_guard<std::mutex> lock(mActiveConfigLock);
-    const ConfigEvent desiredConfig = mDesiredActiveConfig.event | event;
+    const Scheduler::ConfigEvent desiredConfig = mDesiredActiveConfig.event | event;
     mDesiredActiveConfig = ActiveConfigInfo{mode, displayToken, desiredConfig};
 
     if (!mDesiredActiveConfigChanged) {
@@ -975,7 +972,7 @@
 
     mScheduler->resyncToHardwareVsync(true, getVsyncPeriod());
     ATRACE_INT("ActiveConfigMode", mUpcomingActiveConfig.configId);
-    if (mUpcomingActiveConfig.event != ConfigEvent::None) {
+    if (mUpcomingActiveConfig.event != Scheduler::ConfigEvent::None) {
         mScheduler->onConfigChanged(mAppConnectionHandle, display->getId()->value,
                                     mUpcomingActiveConfig.configId);
     }
@@ -1416,9 +1413,8 @@
     return mAllowedConfigs[displayId]->isConfigAllowed(config);
 }
 
-void SurfaceFlinger::setRefreshRateTo(RefreshRateType refreshRate, ConfigEvent event) {
+void SurfaceFlinger::setRefreshRateTo(RefreshRateType refreshRate, Scheduler::ConfigEvent event) {
     ATRACE_CALL();
-
     mPhaseOffsets->setRefreshRateType(refreshRate);
 
     const auto [early, gl, late] = mPhaseOffsets->getCurrentOffsets();
@@ -5652,7 +5648,8 @@
                 // we may want to enhance this logic to pick a similar config
                 // to the current one
                 ALOGV("Old config is not allowed - switching to config %d", config.configId);
-                setDesiredActiveConfig(displayToken, config.configId, ConfigEvent::Changed);
+                setDesiredActiveConfig(displayToken, config.configId,
+                                       Scheduler::ConfigEvent::Changed);
                 break;
             }
         }
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 75947ef..deffe9d 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -522,20 +522,11 @@
     void signalLayerUpdate();
     void signalRefresh();
 
-    enum class ConfigEvent { None, Changed };
-
-    // logical or operator with the semantics of at least one of the events is Changed
-    friend ConfigEvent operator|(const ConfigEvent& first, const ConfigEvent& second) {
-        if (first == ConfigEvent::Changed) return ConfigEvent::Changed;
-        if (second == ConfigEvent::Changed) return ConfigEvent::Changed;
-        return ConfigEvent::None;
-    }
-
     // called on the main thread in response to initializeDisplays()
     void onInitializeDisplays() REQUIRES(mStateLock);
     // Sets the desired active config bit. It obtains the lock, and sets mDesiredActiveConfig.
-    void setDesiredActiveConfig(const sp<IBinder>& displayToken, int mode, ConfigEvent event)
-            REQUIRES(mStateLock);
+    void setDesiredActiveConfig(const sp<IBinder>& displayToken, int mode,
+                                Scheduler::ConfigEvent event) REQUIRES(mStateLock);
     // Once HWC has returned the present fence, this sets the active config and a new refresh
     // rate in SF. It also triggers HWC vsync.
     void setActiveConfigInternal() REQUIRES(mStateLock);
@@ -816,8 +807,8 @@
 
     // Sets the refresh rate by switching active configs, if they are available for
     // the desired refresh rate.
-    void setRefreshRateTo(scheduler::RefreshRateConfigs::RefreshRateType, ConfigEvent event)
-            REQUIRES(mStateLock);
+    void setRefreshRateTo(scheduler::RefreshRateConfigs::RefreshRateType,
+                          Scheduler::ConfigEvent event) REQUIRES(mStateLock);
 
     bool isConfigAllowed(const DisplayId& displayId, int32_t config);
 
@@ -1126,7 +1117,7 @@
     struct ActiveConfigInfo {
         int configId;
         sp<IBinder> displayToken;
-        ConfigEvent event;
+        Scheduler::ConfigEvent event;
 
         bool operator!=(const ActiveConfigInfo& other) const {
             if (configId != other.configId) {