diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Display.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Display.h
index e12d1b4..8bb8e92 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Display.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/Display.h
@@ -77,7 +77,7 @@
     virtual void applyChangedTypesToLayers(const ChangedTypes&);
     virtual void applyDisplayRequests(const DisplayRequests&);
     virtual void applyLayerRequestsToLayers(const LayerRequests&);
-    virtual void applyClientTargetRequests(const ClientTargetProperty&, float brightness);
+    virtual void applyClientTargetRequests(const ClientTargetProperty&);
 
     // Internal
     virtual void setConfiguration(const compositionengine::DisplayCreationArgs&);
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputCompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputCompositionState.h
index 66dd825..2438f80 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputCompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/OutputCompositionState.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <cstdint>
+#include "aidl/android/hardware/graphics/composer3/DimmingStage.h"
 
 #include <math/mat4.h>
 #include <ui/FenceTime.h>
@@ -133,6 +134,10 @@
     // Brightness of the client target, normalized to display brightness
     float clientTargetBrightness{1.f};
 
+    // Stage in which the client target should apply dimming
+    aidl::android::hardware::graphics::composer3::DimmingStage clientTargetDimmingStage{
+            aidl::android::hardware::graphics::composer3::DimmingStage::NONE};
+
     // Display brightness that will take effect this frame.
     // This is slightly distinct from nits, in that nits cannot be passed to hw composer.
     std::optional<float> displayBrightness = std::nullopt;
diff --git a/services/surfaceflinger/CompositionEngine/src/Display.cpp b/services/surfaceflinger/CompositionEngine/src/Display.cpp
index 2165e1d..54daf38 100644
--- a/services/surfaceflinger/CompositionEngine/src/Display.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Display.cpp
@@ -252,7 +252,7 @@
         applyChangedTypesToLayers(changes->changedTypes);
         applyDisplayRequests(changes->displayRequests);
         applyLayerRequestsToLayers(changes->layerRequests);
-        applyClientTargetRequests(changes->clientTargetProperty, changes->clientTargetBrightness);
+        applyClientTargetRequests(changes->clientTargetProperty);
     }
 
     // Determine what type of composition we are doing from the final state
@@ -327,16 +327,19 @@
     }
 }
 
-void Display::applyClientTargetRequests(const ClientTargetProperty& clientTargetProperty,
-                                        float brightness) {
-    if (clientTargetProperty.dataspace == ui::Dataspace::UNKNOWN) {
+void Display::applyClientTargetRequests(const ClientTargetProperty& clientTargetProperty) {
+    if (static_cast<ui::Dataspace>(clientTargetProperty.clientTargetProperty.dataspace) ==
+        ui::Dataspace::UNKNOWN) {
         return;
     }
 
-    editState().dataspace = clientTargetProperty.dataspace;
-    editState().clientTargetBrightness = brightness;
-    getRenderSurface()->setBufferDataspace(clientTargetProperty.dataspace);
-    getRenderSurface()->setBufferPixelFormat(clientTargetProperty.pixelFormat);
+    editState().dataspace =
+            static_cast<ui::Dataspace>(clientTargetProperty.clientTargetProperty.dataspace);
+    editState().clientTargetBrightness = clientTargetProperty.brightness;
+    editState().clientTargetDimmingStage = clientTargetProperty.dimmingStage;
+    getRenderSurface()->setBufferDataspace(editState().dataspace);
+    getRenderSurface()->setBufferPixelFormat(
+            static_cast<ui::PixelFormat>(clientTargetProperty.clientTargetProperty.pixelFormat));
 }
 
 compositionengine::Output::FrameFences Display::presentAndGetFrameFences() {
diff --git a/services/surfaceflinger/CompositionEngine/src/Output.cpp b/services/surfaceflinger/CompositionEngine/src/Output.cpp
index 4e67a63..25155b9 100644
--- a/services/surfaceflinger/CompositionEngine/src/Output.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/Output.cpp
@@ -1080,6 +1080,7 @@
             mDisplayColorProfile->getHdrCapabilities().getDesiredMaxLuminance();
     clientCompositionDisplay.targetLuminanceNits =
             outputState.clientTargetBrightness * outputState.displayBrightnessNits;
+    clientCompositionDisplay.dimmingStage = outputState.clientTargetDimmingStage;
 
     // Compute the global color transform matrix.
     clientCompositionDisplay.colorTransform = outputState.colorTransformMatrix;
diff --git a/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp b/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
index 5cc0f97..d2c945c 100644
--- a/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/DisplayTest.cpp
@@ -634,8 +634,11 @@
             {{nullptr, Composition::CLIENT}},
             hal::DisplayRequest::FLIP_CLIENT_TARGET,
             {{nullptr, hal::LayerRequest::CLEAR_CLIENT_TARGET}},
-            {hal::PixelFormat::RGBA_8888, hal::Dataspace::UNKNOWN},
-            -1.f,
+            {.clientTargetProperty =
+                     {aidl::android::hardware::graphics::common::PixelFormat::RGBA_8888,
+                      aidl::android::hardware::graphics::common::Dataspace::UNKNOWN},
+             .brightness = -1.f,
+             .dimmingStage = aidl::android::hardware::graphics::composer3::DimmingStage::NONE},
     };
 
     // Since two calls are made to anyLayersRequireClientComposition with different return
@@ -822,23 +825,37 @@
 using DisplayApplyClientTargetRequests = DisplayWithLayersTestCommon;
 
 TEST_F(DisplayApplyLayerRequestsToLayersTest, applyClientTargetRequests) {
-    Display::ClientTargetProperty clientTargetProperty = {
-            .pixelFormat = hal::PixelFormat::RGB_565,
-            .dataspace = hal::Dataspace::STANDARD_BT470M,
-    };
-
     static constexpr float kWhitePointNits = 800.f;
 
+    Display::ClientTargetProperty clientTargetProperty = {
+            .clientTargetProperty =
+                    {
+                            .pixelFormat =
+                                    aidl::android::hardware::graphics::common::PixelFormat::RGB_565,
+                            .dataspace = aidl::android::hardware::graphics::common::Dataspace::
+                                    STANDARD_BT470M,
+                    },
+            .brightness = kWhitePointNits,
+            .dimmingStage = aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF,
+    };
+
     mock::RenderSurface* renderSurface = new StrictMock<mock::RenderSurface>();
     mDisplay->setRenderSurfaceForTest(std::unique_ptr<RenderSurface>(renderSurface));
 
-    EXPECT_CALL(*renderSurface, setBufferPixelFormat(clientTargetProperty.pixelFormat));
-    EXPECT_CALL(*renderSurface, setBufferDataspace(clientTargetProperty.dataspace));
-    mDisplay->applyClientTargetRequests(clientTargetProperty, kWhitePointNits);
+    EXPECT_CALL(*renderSurface,
+                setBufferPixelFormat(static_cast<ui::PixelFormat>(
+                        clientTargetProperty.clientTargetProperty.pixelFormat)));
+    EXPECT_CALL(*renderSurface,
+                setBufferDataspace(static_cast<ui::Dataspace>(
+                        clientTargetProperty.clientTargetProperty.dataspace)));
+    mDisplay->applyClientTargetRequests(clientTargetProperty);
 
     auto& state = mDisplay->getState();
-    EXPECT_EQ(clientTargetProperty.dataspace, state.dataspace);
+    EXPECT_EQ(clientTargetProperty.clientTargetProperty.dataspace,
+              static_cast<aidl::android::hardware::graphics::common::Dataspace>(state.dataspace));
     EXPECT_EQ(kWhitePointNits, state.clientTargetBrightness);
+    EXPECT_EQ(aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF,
+              state.clientTargetDimmingStage);
 }
 
 /*
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
index dd3858b..66f3753 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputTest.cpp
@@ -3475,6 +3475,15 @@
           : public CallOrderStateMachineHelper<TestType, OutputWithDisplayBrightnessNits> {
         auto withDisplayBrightnessNits(float nits) {
             getInstance()->mOutput.mState.displayBrightnessNits = nits;
+            return nextState<OutputWithDimmingStage>();
+        }
+    };
+
+    struct OutputWithDimmingStage
+          : public CallOrderStateMachineHelper<TestType, OutputWithDimmingStage> {
+        auto withDimmingStage(
+                aidl::android::hardware::graphics::composer3::DimmingStage dimmingStage) {
+            getInstance()->mOutput.mState.clientTargetDimmingStage = dimmingStage;
             return nextState<SkipColorTransformState>();
         }
     };
@@ -3507,16 +3516,20 @@
     verify().ifMixedCompositionIs(true)
             .andIfUsesHdr(true)
             .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
             .andIfSkipColorTransform(false)
-            .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
-                                            .clip = kDefaultOutputViewport,
-                                            .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDefaultMaxLuminance,
-                                            .outputDataspace = kDefaultOutputDataspace,
-                                            .colorTransform = kDefaultColorTransformMat,
-                                            .deviceHandlesColorTransform = true,
-                                            .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDefaultMaxLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = true,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
             .execute()
             .expectAFenceWasReturned();
 }
@@ -3526,16 +3539,45 @@
     verify().ifMixedCompositionIs(true)
             .andIfUsesHdr(true)
             .withDisplayBrightnessNits(kDisplayLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
+
+            .andIfSkipColorTransform(false)
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDisplayLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = true,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
+            .execute()
+            .expectAFenceWasReturned();
+}
+
+TEST_F(OutputComposeSurfacesTest_UsesExpectedDisplaySettings,
+       forHdrMixedCompositionWithDimmingStage) {
+    verify().ifMixedCompositionIs(true)
+            .andIfUsesHdr(true)
+            .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(
+                    aidl::android::hardware::graphics::composer3::DimmingStage::GAMMA_OETF)
+
             .andIfSkipColorTransform(false)
             .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
                                             .clip = kDefaultOutputViewport,
                                             .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDisplayLuminance,
+                                            .currentLuminanceNits = kDefaultMaxLuminance,
                                             .outputDataspace = kDefaultOutputDataspace,
                                             .colorTransform = kDefaultColorTransformMat,
                                             .deviceHandlesColorTransform = true,
                                             .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+                                            .targetLuminanceNits = kClientTargetLuminanceNits,
+                                            .dimmingStage = aidl::android::hardware::graphics::
+                                                    composer3::DimmingStage::GAMMA_OETF})
             .execute()
             .expectAFenceWasReturned();
 }
@@ -3544,16 +3586,21 @@
     verify().ifMixedCompositionIs(true)
             .andIfUsesHdr(false)
             .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
+
             .andIfSkipColorTransform(false)
-            .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
-                                            .clip = kDefaultOutputViewport,
-                                            .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDefaultMaxLuminance,
-                                            .outputDataspace = kDefaultOutputDataspace,
-                                            .colorTransform = kDefaultColorTransformMat,
-                                            .deviceHandlesColorTransform = true,
-                                            .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDefaultMaxLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = true,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
             .execute()
             .expectAFenceWasReturned();
 }
@@ -3562,16 +3609,21 @@
     verify().ifMixedCompositionIs(false)
             .andIfUsesHdr(true)
             .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
+
             .andIfSkipColorTransform(false)
-            .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
-                                            .clip = kDefaultOutputViewport,
-                                            .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDefaultMaxLuminance,
-                                            .outputDataspace = kDefaultOutputDataspace,
-                                            .colorTransform = kDefaultColorTransformMat,
-                                            .deviceHandlesColorTransform = false,
-                                            .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDefaultMaxLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = false,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
             .execute()
             .expectAFenceWasReturned();
 }
@@ -3580,16 +3632,21 @@
     verify().ifMixedCompositionIs(false)
             .andIfUsesHdr(false)
             .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
+
             .andIfSkipColorTransform(false)
-            .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
-                                            .clip = kDefaultOutputViewport,
-                                            .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDefaultMaxLuminance,
-                                            .outputDataspace = kDefaultOutputDataspace,
-                                            .colorTransform = kDefaultColorTransformMat,
-                                            .deviceHandlesColorTransform = false,
-                                            .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDefaultMaxLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = false,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
             .execute()
             .expectAFenceWasReturned();
 }
@@ -3599,16 +3656,21 @@
     verify().ifMixedCompositionIs(false)
             .andIfUsesHdr(true)
             .withDisplayBrightnessNits(kUnknownLuminance)
+            .withDimmingStage(aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR)
+
             .andIfSkipColorTransform(true)
-            .thenExpectDisplaySettingsUsed({.physicalDisplay = kDefaultOutputDestinationClip,
-                                            .clip = kDefaultOutputViewport,
-                                            .maxLuminance = kDefaultMaxLuminance,
-                                            .currentLuminanceNits = kDefaultMaxLuminance,
-                                            .outputDataspace = kDefaultOutputDataspace,
-                                            .colorTransform = kDefaultColorTransformMat,
-                                            .deviceHandlesColorTransform = true,
-                                            .orientation = kDefaultOutputOrientationFlags,
-                                            .targetLuminanceNits = kClientTargetLuminanceNits})
+            .thenExpectDisplaySettingsUsed(
+                    {.physicalDisplay = kDefaultOutputDestinationClip,
+                     .clip = kDefaultOutputViewport,
+                     .maxLuminance = kDefaultMaxLuminance,
+                     .currentLuminanceNits = kDefaultMaxLuminance,
+                     .outputDataspace = kDefaultOutputDataspace,
+                     .colorTransform = kDefaultColorTransformMat,
+                     .deviceHandlesColorTransform = true,
+                     .orientation = kDefaultOutputOrientationFlags,
+                     .targetLuminanceNits = kClientTargetLuminanceNits,
+                     .dimmingStage =
+                             aidl::android::hardware::graphics::composer3::DimmingStage::LINEAR})
             .execute()
             .expectAFenceWasReturned();
 }