diff --git a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomParams.aidl b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomParams.aidl
index de92105..a38156a 100644
--- a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomParams.aidl
+++ b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomParams.aidl
@@ -36,14 +36,9 @@
 parcelable CpuHeadroomParams {
   android.hardware.power.CpuHeadroomParams.CalculationType calculationType = android.hardware.power.CpuHeadroomParams.CalculationType.MIN;
   int calculationWindowMillis = 1000;
-  android.hardware.power.CpuHeadroomParams.SelectionType selectionType = android.hardware.power.CpuHeadroomParams.SelectionType.ALL;
   int[] tids;
   enum CalculationType {
     MIN,
     AVERAGE,
   }
-  enum SelectionType {
-    ALL,
-    PER_CORE,
-  }
 }
diff --git a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomResult.aidl b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomResult.aidl
index 9303906..21b1e69 100644
--- a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomResult.aidl
+++ b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/CpuHeadroomResult.aidl
@@ -35,5 +35,4 @@
 @JavaDerive(equals=true, toString=true) @VintfStability
 union CpuHeadroomResult {
   float globalHeadroom;
-  float[] perCoreHeadroom;
 }
diff --git a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/IPower.aidl b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/IPower.aidl
index 9d20ca1..080c0bd 100644
--- a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/IPower.aidl
+++ b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/IPower.aidl
@@ -46,8 +46,6 @@
   android.hardware.power.SupportInfo getSupportInfo();
   android.hardware.power.CpuHeadroomResult getCpuHeadroom(in android.hardware.power.CpuHeadroomParams params);
   android.hardware.power.GpuHeadroomResult getGpuHeadroom(in android.hardware.power.GpuHeadroomParams params);
-  long getCpuHeadroomMinIntervalMillis();
-  long getGpuHeadroomMinIntervalMillis();
   oneway void sendCompositionData(in android.hardware.power.CompositionData[] data);
   oneway void sendCompositionUpdate(in android.hardware.power.CompositionUpdate update);
 }
diff --git a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SupportInfo.aidl b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SupportInfo.aidl
index 9609169..c90125c 100644
--- a/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SupportInfo.aidl
+++ b/power/aidl/aidl_api/android.hardware.power/current/android/hardware/power/SupportInfo.aidl
@@ -41,6 +41,7 @@
   long sessionModes;
   long sessionTags;
   android.hardware.power.SupportInfo.CompositionDataSupportInfo compositionData;
+  android.hardware.power.SupportInfo.HeadroomSupportInfo headroom;
   @VintfStability
   parcelable CompositionDataSupportInfo {
     boolean isSupported;
@@ -48,4 +49,11 @@
     int maxBatchSize;
     boolean alwaysBatch;
   }
+  @VintfStability
+  parcelable HeadroomSupportInfo {
+    boolean isCpuSupported;
+    boolean isGpuSupported;
+    int cpuMinIntervalMillis;
+    int gpuMinIntervalMillis;
+  }
 }
diff --git a/power/aidl/android/hardware/power/CpuHeadroomParams.aidl b/power/aidl/android/hardware/power/CpuHeadroomParams.aidl
index 64c7b44..fab8f43 100644
--- a/power/aidl/android/hardware/power/CpuHeadroomParams.aidl
+++ b/power/aidl/android/hardware/power/CpuHeadroomParams.aidl
@@ -42,21 +42,6 @@
     int calculationWindowMillis = 1000;
 
     /**
-     * Defines how to select the CPU.
-     */
-    enum SelectionType {
-        // Default to return a single value for all cores.
-        ALL,
-        // Returns per-core headroom in a list.
-        PER_CORE,
-    }
-
-    /**
-     * The CPU selection type.
-     */
-    SelectionType selectionType = SelectionType.ALL;
-
-    /**
      * The thread TIDs to track.
      *
      * If tids are not-empty, return the headrooms only for cores that are available
diff --git a/power/aidl/android/hardware/power/CpuHeadroomResult.aidl b/power/aidl/android/hardware/power/CpuHeadroomResult.aidl
index 316d5f6..e7ed8b6 100644
--- a/power/aidl/android/hardware/power/CpuHeadroomResult.aidl
+++ b/power/aidl/android/hardware/power/CpuHeadroomResult.aidl
@@ -29,8 +29,4 @@
      * If ALL selection type is requested.
      */
     float globalHeadroom;
-    /**
-     * If PER_CORE selection type is requested.
-     */
-    float[] perCoreHeadroom;
 }
diff --git a/power/aidl/android/hardware/power/IPower.aidl b/power/aidl/android/hardware/power/IPower.aidl
index 41a9379..ce61af4 100644
--- a/power/aidl/android/hardware/power/IPower.aidl
+++ b/power/aidl/android/hardware/power/IPower.aidl
@@ -181,26 +181,6 @@
     GpuHeadroomResult getGpuHeadroom(in GpuHeadroomParams params);
 
     /**
-     * Minimum polling interval for calling getCpuHeadroom in milliseconds.
-     *
-     * The getCpuHeadroom API may return cached result if called more frequent
-     * than the interval.
-     *
-     * @throws EX_UNSUPPORTED_OPERATION if the API is unsupported.
-     */
-    long getCpuHeadroomMinIntervalMillis();
-
-    /**
-     * Minimum polling interval for calling getGpuHeadroom in milliseconds.
-     *
-     * The getGpuHeadroom API may return cached result if called more frequent
-     * than the interval.
-     *
-     * @throws EX_UNSUPPORTED_OPERATION if the API is unsupported.
-     */
-    long getGpuHeadroomMinIntervalMillis();
-
-    /**
      * Sent to PowerHAL when there are surface-attached sessions being composed,
      * providing FPS and frame timing data that can be used to supplement
      * and validate timing sent via reportActual. This call can be batched,
diff --git a/power/aidl/android/hardware/power/SupportInfo.aidl b/power/aidl/android/hardware/power/SupportInfo.aidl
index 4178b3a..55287cb 100644
--- a/power/aidl/android/hardware/power/SupportInfo.aidl
+++ b/power/aidl/android/hardware/power/SupportInfo.aidl
@@ -77,6 +77,11 @@
      */
     CompositionDataSupportInfo compositionData;
 
+    /**
+     *  Parcel detailing support info for headroom information.
+     */
+    HeadroomSupportInfo headroom;
+
     @VintfStability
     parcelable CompositionDataSupportInfo {
         /**
@@ -106,4 +111,33 @@
          */
         boolean alwaysBatch;
     }
+
+    @VintfStability
+    parcelable HeadroomSupportInfo {
+        /**
+         * Whether the CPU headroom feature is supported.
+         */
+        boolean isCpuSupported;
+
+        /**
+         * Whether the GPU headroom feature is supported.
+         */
+        boolean isGpuSupported;
+
+        /**
+         * Minimum polling interval for calling getCpuHeadroom in milliseconds
+         *
+         * The getCpuHeadroom API may return cached result if called more frequent
+         * than the interval.
+         */
+        int cpuMinIntervalMillis;
+
+        /**
+         * Minimum polling interval for calling getGpuHeadroom in milliseconds.
+         *
+         * The getGpuHeadroom API may return cached result if called more frequent
+         * than the interval.
+         */
+        int gpuMinIntervalMillis;
+    }
 }
diff --git a/power/aidl/default/Power.cpp b/power/aidl/default/Power.cpp
index 8490b62..0a9c90f 100644
--- a/power/aidl/default/Power.cpp
+++ b/power/aidl/default/Power.cpp
@@ -71,33 +71,12 @@
     return ScopedAStatus::ok();
 }
 
-ndk::ScopedAStatus Power::getCpuHeadroom(const CpuHeadroomParams& params,
-                                         CpuHeadroomResult* _aidl_return) {
-    if (params.selectionType == CpuHeadroomParams::SelectionType::ALL) {
-        _aidl_return->set<CpuHeadroomResult::globalHeadroom>(100.0f);
-        return ndk::ScopedAStatus::ok();
-    } else if (params.selectionType == CpuHeadroomParams::SelectionType::PER_CORE) {
-        std::vector<float> headroom = {50.0f, 100.0f};
-        _aidl_return->set<CpuHeadroomResult::perCoreHeadroom>(headroom);
-        return ndk::ScopedAStatus::ok();
-    }
+ndk::ScopedAStatus Power::getCpuHeadroom(const CpuHeadroomParams&, CpuHeadroomResult*) {
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
-ndk::ScopedAStatus Power::getGpuHeadroom(const GpuHeadroomParams& _,
-                                         GpuHeadroomResult* _aidl_return) {
-    _aidl_return->set<GpuHeadroomResult::globalHeadroom>(100.0f);
-    return ndk::ScopedAStatus::ok();
-}
-
-ndk::ScopedAStatus Power::getCpuHeadroomMinIntervalMillis(int64_t* _aidl_return) {
-    *_aidl_return = 1000;
-    return ndk::ScopedAStatus::ok();
-}
-
-ndk::ScopedAStatus Power::getGpuHeadroomMinIntervalMillis(int64_t* _aidl_return) {
-    *_aidl_return = 1000;
-    return ndk::ScopedAStatus::ok();
+ndk::ScopedAStatus Power::getGpuHeadroom(const GpuHeadroomParams&, GpuHeadroomResult*) {
+    return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
 
 ScopedAStatus Power::createHintSession(int32_t, int32_t, const std::vector<int32_t>& tids, int64_t,
@@ -163,6 +142,12 @@
                                               .disableGpuFences = false,
                                               .maxBatchSize = 1,
                                               .alwaysBatch = false,
+                                      },
+                                      .headroom = {
+                                              .isCpuSupported = false,
+                                              .isGpuSupported = false,
+                                              .cpuMinIntervalMillis = 0,
+                                              .gpuMinIntervalMillis = 0,
                                       }};
     // Copy the support object into the binder
     *_aidl_return = supportInfo;
diff --git a/power/aidl/default/Power.h b/power/aidl/default/Power.h
index c4aa7ab..118097f 100644
--- a/power/aidl/default/Power.h
+++ b/power/aidl/default/Power.h
@@ -50,8 +50,6 @@
 
     ndk::ScopedAStatus getGpuHeadroom(const GpuHeadroomParams& params,
                                       GpuHeadroomResult* _aidl_return) override;
-    ndk::ScopedAStatus getCpuHeadroomMinIntervalMillis(int64_t* _aidl_return) override;
-    ndk::ScopedAStatus getGpuHeadroomMinIntervalMillis(int64_t* _aidl_return) override;
     ndk::ScopedAStatus sendCompositionData(const std::vector<CompositionData>& in_data) override;
     ndk::ScopedAStatus sendCompositionUpdate(const CompositionUpdate& in_update) override;
 
diff --git a/power/aidl/vts/VtsHalPowerTargetTest.cpp b/power/aidl/vts/VtsHalPowerTargetTest.cpp
index ffe20c6..b8ed634 100644
--- a/power/aidl/vts/VtsHalPowerTargetTest.cpp
+++ b/power/aidl/vts/VtsHalPowerTargetTest.cpp
@@ -311,13 +311,12 @@
     CpuHeadroomParams params;
     CpuHeadroomResult headroom;
     auto ret = power->getCpuHeadroom(params, &headroom);
-    if (ret.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+    if (!mSupportInfo->headroom.isCpuSupported) {
+        ASSERT_EQ(ret.getExceptionCode(), EX_UNSUPPORTED_OPERATION);
         GTEST_SKIP() << "power->getCpuHeadroom is not supported";
     }
     ASSERT_TRUE(ret.isOk());
-    int64_t minIntervalMillis;
-    ASSERT_TRUE(power->getCpuHeadroomMinIntervalMillis(&minIntervalMillis).isOk());
-    ASSERT_GE(minIntervalMillis, 0);
+    ASSERT_GE(mSupportInfo->headroom.cpuMinIntervalMillis, 0);
     ASSERT_EQ(headroom.getTag(), CpuHeadroomResult::globalHeadroom);
     ASSERT_GE(headroom.get<CpuHeadroomResult::globalHeadroom>(), 0.0f);
     ASSERT_LE(headroom.get<CpuHeadroomResult::globalHeadroom>(), 100.00f);
@@ -330,13 +329,12 @@
     GpuHeadroomParams params;
     GpuHeadroomResult headroom;
     auto ret = power->getGpuHeadroom(params, &headroom);
-    if (ret.getExceptionCode() == EX_UNSUPPORTED_OPERATION) {
+    if (!mSupportInfo->headroom.isGpuSupported) {
+        ASSERT_EQ(ret.getExceptionCode(), EX_UNSUPPORTED_OPERATION);
         GTEST_SKIP() << "power->getGpuHeadroom is not supported";
     }
     ASSERT_TRUE(ret.isOk());
-    int64_t minIntervalMillis;
-    ASSERT_TRUE(power->getGpuHeadroomMinIntervalMillis(&minIntervalMillis).isOk());
-    ASSERT_GE(minIntervalMillis, 0);
+    ASSERT_GE(mSupportInfo->headroom.gpuMinIntervalMillis, 0);
     ASSERT_EQ(headroom.getTag(), GpuHeadroomResult::globalHeadroom);
     ASSERT_GE(headroom.get<GpuHeadroomResult::globalHeadroom>(), 0.0f);
     ASSERT_LE(headroom.get<GpuHeadroomResult::globalHeadroom>(), 100.00f);