diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index 89736ec..8b2842a 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -281,6 +281,12 @@
 }
 
 prebuilt_etc {
+    name: "android.hardware.telephony.carrierlock.prebuilt.xml",
+    src: "android.hardware.telephony.carrierlock.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
     name: "android.hardware.telephony.gsm.prebuilt.xml",
     src: "android.hardware.telephony.gsm.xml",
     defaults: ["frameworks_native_data_etc_defaults"],
@@ -293,6 +299,12 @@
 }
 
 prebuilt_etc {
+    name: "android.hardware.telephony.ims.singlereg.prebuilt.xml",
+    src: "android.hardware.telephony.ims.singlereg.xml",
+    defaults: ["frameworks_native_data_etc_defaults"],
+}
+
+prebuilt_etc {
     name: "android.hardware.thread_network.prebuilt.xml",
     src: "android.hardware.thread_network.xml",
     defaults: ["frameworks_native_data_etc_defaults"],
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index b92e504..ef96f80 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -922,28 +922,10 @@
     flushIfNeeded();
 }
 
-status_t IPCThreadState::attemptIncStrongHandle(int32_t handle)
-{
-#if HAS_BC_ATTEMPT_ACQUIRE
-    LOG_REMOTEREFS("IPCThreadState::attemptIncStrongHandle(%d)\n", handle);
-    mOut.writeInt32(BC_ATTEMPT_ACQUIRE);
-    mOut.writeInt32(0); // xxx was thread priority
-    mOut.writeInt32(handle);
-    status_t result = UNKNOWN_ERROR;
-
-    waitForResponse(NULL, &result);
-
-#if LOG_REFCOUNTS
-    ALOGV("IPCThreadState::attemptIncStrongHandle(%ld) = %s\n",
-        handle, result == NO_ERROR ? "SUCCESS" : "FAILURE");
-#endif
-
-    return result;
-#else
+status_t IPCThreadState::attemptIncStrongHandle(int32_t handle) {
     (void)handle;
     ALOGE("%s(%d): Not supported\n", __func__, handle);
     return INVALID_OPERATION;
-#endif
 }
 
 void IPCThreadState::expungeHandle(int32_t handle, IBinder* binder)
diff --git a/libs/gui/tests/AndroidTest.xml b/libs/gui/tests/AndroidTest.xml
index 31b10d7..b4ccf87 100644
--- a/libs/gui/tests/AndroidTest.xml
+++ b/libs/gui/tests/AndroidTest.xml
@@ -18,6 +18,7 @@
         <option name="cleanup" value="true" />
         <option name="push" value="libgui_test->/data/local/tmp/libgui_test" />
     </target_preparer>
+    <target_preparer class="com.android.tradefed.targetprep.RootTargetPreparer" />
     <target_preparer class="com.android.tradefed.targetprep.DeviceSetup">
       <option name="force-skip-system-props" value="true" /> <!-- avoid restarting device -->
       <option name="screen-always-on" value="on" />
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index 0d29b4d..1c713f9 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -1037,6 +1037,9 @@
     if (event.getMetaState() != 0) {
         out << ", metaState=" << event.getMetaState();
     }
+    if (event.getFlags() != 0) {
+        out << ", flags=0x" << std::hex << event.getFlags() << std::dec;
+    }
     if (event.getEdgeFlags() != 0) {
         out << ", edgeFlags=" << event.getEdgeFlags();
     }
diff --git a/libs/ui/DisplayIdentification.cpp b/libs/ui/DisplayIdentification.cpp
index a45ffe1..82e5427 100644
--- a/libs/ui/DisplayIdentification.cpp
+++ b/libs/ui/DisplayIdentification.cpp
@@ -47,6 +47,7 @@
     return val ^ (val >> 47);
 }
 
+__attribute__((no_sanitize("unsigned-integer-overflow")))
 uint64_t hash64Len16(uint64_t u, uint64_t v) {
     constexpr uint64_t kMul = 0x9ddfea08eb382d69;
     uint64_t a = (u ^ v) * kMul;
@@ -57,6 +58,7 @@
     return b;
 }
 
+__attribute__((no_sanitize("unsigned-integer-overflow")))
 uint64_t hash64Len0To16(const char* s, uint64_t len) {
     constexpr uint64_t k2 = 0x9ae16a3b2f90404f;
     constexpr uint64_t k3 = 0xc949d7c7509e6557;
@@ -401,4 +403,4 @@
     return hash64Len0To16(sv.data(), len);
 }
 
-} // namespace android
\ No newline at end of file
+} // namespace android
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 6719006..3a18f25 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -3422,6 +3422,9 @@
                             InputTarget::Flags::WINDOW_IS_PARTIALLY_OBSCURED)) {
                     resolvedFlags |= AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED;
                 }
+                if (dispatchEntry->targetFlags.test(InputTarget::Flags::NO_FOCUS_CHANGE)) {
+                    resolvedFlags |= AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE;
+                }
 
                 dispatchEntry->resolvedFlags = resolvedFlags;
                 if (resolvedAction != motionEntry.action) {
@@ -3496,8 +3499,7 @@
                              << "~ dropping inconsistent event: " << *dispatchEntry;
                 return; // skip the inconsistent event
             }
-
-            if ((resolvedMotion->flags & AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE) &&
+            if ((dispatchEntry->resolvedFlags & AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE) &&
                 (resolvedMotion->policyFlags & POLICY_FLAG_TRUSTED)) {
                 // Skip reporting pointer down outside focus to the policy.
                 break;
@@ -5612,6 +5614,8 @@
         if (canReceiveForegroundTouches(*toWindowHandle->getInfo())) {
             newTargetFlags |= InputTarget::Flags::FOREGROUND;
         }
+        // Transferring touch focus using this API should not effect the focused window.
+        newTargetFlags |= InputTarget::Flags::NO_FOCUS_CHANGE;
         state->addOrUpdateWindow(toWindowHandle, InputTarget::DispatchMode::AS_IS, newTargetFlags,
                                  deviceId, pointers, downTimeInTarget);
 
@@ -7000,7 +7004,8 @@
 
     if (newWallpaper != nullptr) {
         nsecs_t downTimeInTarget = now();
-        ftl::Flags<InputTarget::Flags> wallpaperFlags = oldTargetFlags & InputTarget::Flags::SPLIT;
+        ftl::Flags<InputTarget::Flags> wallpaperFlags = newTargetFlags;
+        wallpaperFlags |= oldTargetFlags & InputTarget::Flags::SPLIT;
         wallpaperFlags |= InputTarget::Flags::WINDOW_IS_OBSCURED |
                 InputTarget::Flags::WINDOW_IS_PARTIALLY_OBSCURED;
         state.addOrUpdateWindow(newWallpaper, InputTarget::DispatchMode::AS_IS, wallpaperFlags,
diff --git a/services/inputflinger/dispatcher/InputTargetFlags.h b/services/inputflinger/dispatcher/InputTargetFlags.h
index 7497543..efebb18 100644
--- a/services/inputflinger/dispatcher/InputTargetFlags.h
+++ b/services/inputflinger/dispatcher/InputTargetFlags.h
@@ -38,6 +38,12 @@
      * the same UID from watching all touches. */
     ZERO_COORDS = 1 << 3,
 
+    /* This flag indicates that the event will not cause a focus change if it is directed to an
+     * unfocused window, even if it an ACTION_DOWN. This is typically used to allow gestures to be
+     * directed to an unfocused window without bringing it into focus. The motion event should be
+     * delivered with flag AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE. */
+    NO_FOCUS_CHANGE = 1 << 4,
+
     /* This flag indicates that the target of a MotionEvent is partly or wholly
      * obscured by another visible window above it.  The motion event should be
      * delivered with flag AMOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED. */
diff --git a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
index c8f3d05..36cebcc 100644
--- a/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
+++ b/services/inputflinger/dispatcher/include/InputDispatcherInterface.h
@@ -140,7 +140,9 @@
      */
     virtual void setMaximumObscuringOpacityForTouch(float opacity) = 0;
 
-    /* Transfers touch focus from one window to another window.
+    /**
+     * Transfers touch focus from one window to another window. Transferring touch focus will not
+     * have any effect on the focused window.
      *
      * Returns true on success.  False if the window did not actually have touch focus.
      */
@@ -149,6 +151,7 @@
 
     /**
      * Transfer touch focus to the provided channel, no matter where the current touch is.
+     * Transferring touch focus will not have any effect on the focused window.
      *
      * Return true on success, false if there was no on-going touch.
      */
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index f3f15df..2baf576 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -265,6 +265,8 @@
         }
 
         if (!changes.any() || changes.test(Change::DISPLAY_INFO)) {
+            const auto oldAssociatedDisplayId = getAssociatedDisplayId();
+
             // In most situations, no port or name will be specified.
             mAssociatedDisplayPort = std::nullopt;
             mAssociatedDisplayUniqueId = std::nullopt;
@@ -306,6 +308,10 @@
                           getName().c_str(), mAssociatedDisplayUniqueId->c_str());
                 }
             }
+
+            if (getAssociatedDisplayId() != oldAssociatedDisplayId) {
+                bumpGeneration();
+            }
         }
 
         for_each_mapper([this, when, &readerConfig, changes, &out](InputMapper& mapper) {
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 4c455f7..cb7791a 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -5381,9 +5381,11 @@
     sp<FakeWindowHandle> wallpaper =
             sp<FakeWindowHandle>::make(application, mDispatcher, "Wallpaper", ADISPLAY_ID_DEFAULT);
     wallpaper->setIsWallpaper(true);
-    // Add the windows to the dispatcher
+    // Add the windows to the dispatcher, and ensure the first window is focused
     mDispatcher->onWindowInfosChanged(
             {{*firstWindow->getInfo(), *secondWindow->getInfo(), *wallpaper->getInfo()}, {}, 0, 0});
+    setFocusedWindow(firstWindow);
+    firstWindow->consumeFocusEvent(true);
 
     // Send down to the first window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_DOWN,
@@ -5393,6 +5395,8 @@
     firstWindow->consumeMotionDown();
     secondWindow->assertNoEvents();
     wallpaper->consumeMotionDown(ADISPLAY_ID_DEFAULT, expectedWallpaperFlags);
+    // Dispatcher reports pointer down outside focus for the wallpaper
+    mFakePolicy->assertOnPointerDownEquals(wallpaper->getToken());
 
     // Transfer touch to the second window
     TransferFunction f = GetParam();
@@ -5400,15 +5404,17 @@
     ASSERT_TRUE(success);
     // The first window gets cancel and the second gets down
     firstWindow->consumeMotionCancel();
-    secondWindow->consumeMotionDown();
+    secondWindow->consumeMotionDown(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     wallpaper->consumeMotionCancel(ADISPLAY_ID_DEFAULT, expectedWallpaperFlags);
+    // There should not be any changes to the focused window when transferring touch
+    ASSERT_NO_FATAL_FAILURE(mFakePolicy->assertOnPointerDownWasNotCalled());
 
     // Send up event to the second window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
                                                  ADISPLAY_ID_DEFAULT));
-    // The first  window gets no events and the second gets up
+    // The first window gets no events and the second gets up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionUp();
+    secondWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     wallpaper->assertNoEvents();
 }
 
@@ -5455,7 +5461,7 @@
     ASSERT_TRUE(success);
     // The first window gets cancel and the second gets down
     firstWindow->consumeMotionCancel();
-    secondWindow->consumeMotionDown();
+    secondWindow->consumeMotionDown(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send up event to the second window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
@@ -5463,7 +5469,7 @@
     // The first  window gets no events and the second+spy get up
     firstWindow->assertNoEvents();
     spyWindow->consumeMotionUp();
-    secondWindow->consumeMotionUp();
+    secondWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 TEST_P(TransferTouchFixture, TransferTouch_TwoPointersNonSplitTouch) {
@@ -5506,22 +5512,24 @@
     ASSERT_TRUE(success);
     // The first window gets cancel and the second gets down and pointer down
     firstWindow->consumeMotionCancel();
-    secondWindow->consumeMotionDown();
-    secondWindow->consumeMotionPointerDown(1);
+    secondWindow->consumeMotionDown(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
+    secondWindow->consumeMotionPointerDown(1, ADISPLAY_ID_DEFAULT,
+                                           AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send pointer up to the second window
     mDispatcher->notifyMotion(generateMotionArgs(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN,
                                                  ADISPLAY_ID_DEFAULT, {touchPoint, touchPoint}));
     // The first window gets nothing and the second gets pointer up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionPointerUp(1);
+    secondWindow->consumeMotionPointerUp(1, ADISPLAY_ID_DEFAULT,
+                                         AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send up event to the second window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
                                                  ADISPLAY_ID_DEFAULT));
     // The first window gets nothing and the second gets up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionUp();
+    secondWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 TEST_P(TransferTouchFixture, TransferTouch_MultipleWallpapers) {
@@ -5568,24 +5576,26 @@
 
     // The first window gets cancel and the second gets down
     firstWindow->consumeMotionCancel();
-    secondWindow->consumeMotionDown();
+    secondWindow->consumeMotionDown(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     wallpaper1->consumeMotionCancel(ADISPLAY_ID_DEFAULT, expectedWallpaperFlags);
-    wallpaper2->consumeMotionDown(ADISPLAY_ID_DEFAULT, expectedWallpaperFlags);
+    wallpaper2->consumeMotionDown(ADISPLAY_ID_DEFAULT,
+                                  expectedWallpaperFlags | AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send up event to the second window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
                                                  ADISPLAY_ID_DEFAULT));
     // The first  window gets no events and the second gets up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionUp();
+    secondWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     wallpaper1->assertNoEvents();
-    wallpaper2->consumeMotionUp(ADISPLAY_ID_DEFAULT, expectedWallpaperFlags);
+    wallpaper2->consumeMotionUp(ADISPLAY_ID_DEFAULT,
+                                expectedWallpaperFlags | AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 // For the cases of single pointer touch and two pointers non-split touch, the api's
 // 'transferTouch' and 'transferTouchFocus' are equivalent in behaviour. They only differ
 // for the case where there are multiple pointers split across several windows.
-INSTANTIATE_TEST_SUITE_P(TransferFunctionTests, TransferTouchFixture,
+INSTANTIATE_TEST_SUITE_P(InputDispatcherTransferFunctionTests, TransferTouchFixture,
                          ::testing::Values(
                                  [&](const std::unique_ptr<InputDispatcher>& dispatcher,
                                      sp<IBinder> /*ignored*/, sp<IBinder> destChannelToken) {
@@ -5638,7 +5648,8 @@
     mDispatcher->transferTouchFocus(firstWindow->getToken(), secondWindow->getToken());
     // The first window gets cancel and the new gets pointer down (it already saw down)
     firstWindow->consumeMotionCancel();
-    secondWindow->consumeMotionPointerDown(1);
+    secondWindow->consumeMotionPointerDown(1, ADISPLAY_ID_DEFAULT,
+                                           AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send pointer up to the second window
     mDispatcher->notifyMotion(generateMotionArgs(POINTER_1_UP, AINPUT_SOURCE_TOUCHSCREEN,
@@ -5646,14 +5657,15 @@
                                                  {pointInFirst, pointInSecond}));
     // The first window gets nothing and the second gets pointer up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionPointerUp(1);
+    secondWindow->consumeMotionPointerUp(1, ADISPLAY_ID_DEFAULT,
+                                         AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     // Send up event to the second window
     mDispatcher->notifyMotion(generateMotionArgs(AMOTION_EVENT_ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN,
                                                  ADISPLAY_ID_DEFAULT));
     // The first window gets nothing and the second gets up
     firstWindow->assertNoEvents();
-    secondWindow->consumeMotionUp();
+    secondWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 // Same as TransferTouchFocus_TwoPointersSplitTouch, but using 'transferTouch' api.
@@ -5764,21 +5776,23 @@
                                                 secondWindowInPrimary->getToken()));
     // The first window gets cancel.
     firstWindowInPrimary->consumeMotionCancel();
-    secondWindowInPrimary->consumeMotionDown();
+    secondWindowInPrimary->consumeMotionDown(ADISPLAY_ID_DEFAULT,
+                                             AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
     firstWindowInPrimary->assertNoEvents();
-    secondWindowInPrimary->consumeMotionMove();
+    secondWindowInPrimary->consumeMotionMove(ADISPLAY_ID_DEFAULT,
+                                             AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                              {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
     firstWindowInPrimary->assertNoEvents();
-    secondWindowInPrimary->consumeMotionUp();
+    secondWindowInPrimary->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 // Same as TransferTouchFocus_CloneSurface, but this touch on the secondary display and use
@@ -5824,20 +5838,22 @@
 
     // The first window gets cancel.
     firstWindowInSecondary->consumeMotionCancel(SECOND_DISPLAY_ID);
-    secondWindowInSecondary->consumeMotionDown(SECOND_DISPLAY_ID);
+    secondWindowInSecondary->consumeMotionDown(SECOND_DISPLAY_ID,
+                                               AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 SECOND_DISPLAY_ID, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
     firstWindowInSecondary->assertNoEvents();
-    secondWindowInSecondary->consumeMotionMove(SECOND_DISPLAY_ID);
+    secondWindowInSecondary->consumeMotionMove(SECOND_DISPLAY_ID,
+                                               AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, SECOND_DISPLAY_ID, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
     firstWindowInSecondary->assertNoEvents();
-    secondWindowInSecondary->consumeMotionUp(SECOND_DISPLAY_ID);
+    secondWindowInSecondary->consumeMotionUp(SECOND_DISPLAY_ID, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
 }
 
 TEST_F(InputDispatcherTest, FocusedWindow_ReceivesFocusEventAndKeyEvent) {
@@ -10508,7 +10524,7 @@
                                                 /*isDragDrop=*/true);
         if (transferred) {
             mWindow->consumeMotionCancel();
-            mDragWindow->consumeMotionDown();
+            mDragWindow->consumeMotionDown(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
         }
         return transferred;
     }
@@ -10522,7 +10538,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10531,7 +10547,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(true, 150, 50);
     mSecondWindow->consumeDragEvent(false, 50, 50);
 
@@ -10540,7 +10556,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->consumeDragEvent(true, -50, 50);
 
@@ -10548,7 +10564,7 @@
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                              {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
 }
@@ -10585,7 +10601,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10594,7 +10610,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(true, 150, 50);
     mSecondWindow->consumeDragEvent(false, 50, 50);
 
@@ -10603,7 +10619,7 @@
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                              {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mFakePolicy->assertDropTargetEquals(*mDispatcher, mSecondWindow->getToken());
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
@@ -10649,7 +10665,8 @@
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
 
     // Drag window should still receive the new event
-    mDragWindow->consumeMotionEvent(WithMotionAction(ACTION_MOVE));
+    mDragWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_MOVE), WithFlags(AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE)));
     mDragWindow->assertNoEvents();
 }
 
@@ -10664,7 +10681,7 @@
                                         .pointer(PointerBuilder(0, ToolType::STYLUS).x(50).y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10676,7 +10693,7 @@
                                         .pointer(PointerBuilder(0, ToolType::STYLUS).x(150).y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
     mFakePolicy->assertDropTargetEquals(*mDispatcher, mSecondWindow->getToken());
@@ -10689,7 +10706,7 @@
                                         .pointer(PointerBuilder(0, ToolType::STYLUS).x(150).y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
 }
@@ -10707,7 +10724,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10716,7 +10733,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(true, 150, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10725,7 +10742,7 @@
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                              {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mFakePolicy->assertDropTargetEquals(*mDispatcher, nullptr);
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
@@ -10794,7 +10811,7 @@
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionEvent(*mDispatcher, secondFingerMoveEvent, INJECT_EVENT_TIMEOUT,
                                 InputEventInjectionSync::WAIT_FOR_RESULT));
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->consumeMotionMove();
 
@@ -10808,7 +10825,7 @@
     ASSERT_EQ(InputEventInjectionResult::SUCCEEDED,
               injectMotionEvent(*mDispatcher, secondFingerUpEvent, INJECT_EVENT_TIMEOUT,
                                 InputEventInjectionSync::WAIT_FOR_RESULT));
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mFakePolicy->assertDropTargetEquals(*mDispatcher, mWindow->getToken());
     mWindow->assertNoEvents();
     mSecondWindow->consumeMotionMove();
@@ -10849,7 +10866,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {50, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10858,7 +10875,7 @@
               injectMotionEvent(*mDispatcher, AMOTION_EVENT_ACTION_MOVE, AINPUT_SOURCE_TOUCHSCREEN,
                                 ADISPLAY_ID_DEFAULT, {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(true, 150, 50);
     mSecondWindow->consumeDragEvent(false, 50, 50);
 
@@ -10867,7 +10884,7 @@
               injectMotionUp(*mDispatcher, AINPUT_SOURCE_TOUCHSCREEN, ADISPLAY_ID_DEFAULT,
                              {150, 50}))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mFakePolicy->assertDropTargetEquals(*mDispatcher, mSecondWindow->getToken());
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
@@ -10885,7 +10902,7 @@
                                                          .y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(false, 50, 50);
     mSecondWindow->assertNoEvents();
 
@@ -10899,7 +10916,7 @@
                                                          .y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionMove(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mWindow->consumeDragEvent(true, 150, 50);
     mSecondWindow->consumeDragEvent(false, 50, 50);
 
@@ -10913,7 +10930,7 @@
                                                          .y(50))
                                         .build()))
             << "Inject motion event should return InputEventInjectionResult::SUCCEEDED";
-    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT);
+    mDragWindow->consumeMotionUp(ADISPLAY_ID_DEFAULT, AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE);
     mFakePolicy->assertDropTargetEquals(*mDispatcher, mSecondWindow->getToken());
     mWindow->assertNoEvents();
     mSecondWindow->assertNoEvents();
@@ -10954,7 +10971,8 @@
     // Trigger cancel
     mDispatcher->cancelCurrentTouch();
     ASSERT_NO_FATAL_FAILURE(mSecondWindow->consumeMotionCancel());
-    ASSERT_NO_FATAL_FAILURE(mDragWindow->consumeMotionCancel());
+    ASSERT_NO_FATAL_FAILURE(mDragWindow->consumeMotionCancel(ADISPLAY_ID_DEFAULT,
+                                                             AMOTION_EVENT_FLAG_NO_FOCUS_CHANGE));
     ASSERT_NO_FATAL_FAILURE(mSpyWindow->consumeMotionCancel());
 
     ASSERT_TRUE(mDispatcher->waitForIdle());
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index c1dc7ff..476f755 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -2893,9 +2893,12 @@
     mFakePolicy->addDisplayViewport(SECONDARY_DISPLAY_ID, DISPLAY_WIDTH, DISPLAY_HEIGHT,
                                     ui::ROTATION_0, /* isActive= */ true, DISPLAY_UNIQUE_ID,
                                     NO_PORT, ViewportType::INTERNAL);
+    const auto initialGeneration = mDevice->getGeneration();
     unused += mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                                  InputReaderConfiguration::Change::DISPLAY_INFO);
     ASSERT_EQ(DISPLAY_UNIQUE_ID, mDevice->getAssociatedDisplayUniqueId());
+    ASSERT_GT(mDevice->getGeneration(), initialGeneration);
+    ASSERT_EQ(mDevice->getDeviceInfo().getAssociatedDisplayId(), SECONDARY_DISPLAY_ID);
 }
 
 /**
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.cpp b/services/surfaceflinger/DisplayHardware/HWC2.cpp
index bd5efc3..84f668d 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWC2.cpp
@@ -282,19 +282,28 @@
     return Error::NONE;
 }
 
-Error Display::getConnectionType(ui::DisplayConnectionType* outType) const {
-    if (mType != DisplayType::PHYSICAL) return Error::BAD_DISPLAY;
+ftl::Expected<ui::DisplayConnectionType, hal::Error> Display::getConnectionType() const {
+    if (!mConnectionType) {
+        mConnectionType = [this]() -> decltype(mConnectionType) {
+            if (mType != DisplayType::PHYSICAL) {
+                return ftl::Unexpected(Error::BAD_DISPLAY);
+            }
 
-    using ConnectionType = Hwc2::IComposerClient::DisplayConnectionType;
-    ConnectionType connectionType;
-    const auto error = static_cast<Error>(mComposer.getDisplayConnectionType(mId, &connectionType));
-    if (error != Error::NONE) {
-        return error;
+            using ConnectionType = Hwc2::IComposerClient::DisplayConnectionType;
+            ConnectionType connectionType;
+
+            if (const auto error = static_cast<Error>(
+                        mComposer.getDisplayConnectionType(mId, &connectionType));
+                error != Error::NONE) {
+                return ftl::Unexpected(error);
+            }
+
+            return connectionType == ConnectionType::INTERNAL ? ui::DisplayConnectionType::Internal
+                                                              : ui::DisplayConnectionType::External;
+        }();
     }
 
-    *outType = connectionType == ConnectionType::INTERNAL ? ui::DisplayConnectionType::Internal
-                                                          : ui::DisplayConnectionType::External;
-    return Error::NONE;
+    return *mConnectionType;
 }
 
 bool Display::hasCapability(DisplayCapability capability) const {
@@ -420,16 +429,11 @@
     // FIXME (b/319505580): At least the first config set on an external display must be
     // `setActiveConfig`, so skip over the block that calls `setActiveConfigWithConstraints`
     // for simplicity.
-    ui::DisplayConnectionType type = ui::DisplayConnectionType::Internal;
     const bool connected_display = FlagManager::getInstance().connected_display();
-    if (connected_display) {
-        // Do not bail out on error, since the underlying API may return UNSUPPORTED on older HWCs.
-        // TODO: b/323905961 - Remove this AIDL call.
-        getConnectionType(&type);
-    }
 
     if (isVsyncPeriodSwitchSupported() &&
-        (!connected_display || type != ui::DisplayConnectionType::External)) {
+        (!connected_display ||
+         getConnectionType().value_opt() != ui::DisplayConnectionType::External)) {
         Hwc2::IComposerClient::VsyncPeriodChangeConstraints hwc2Constraints;
         hwc2Constraints.desiredTimeNanos = constraints.desiredTimeNanos;
         hwc2Constraints.seamlessRequired = constraints.seamlessRequired;
diff --git a/services/surfaceflinger/DisplayHardware/HWC2.h b/services/surfaceflinger/DisplayHardware/HWC2.h
index f907061..de044e0 100644
--- a/services/surfaceflinger/DisplayHardware/HWC2.h
+++ b/services/surfaceflinger/DisplayHardware/HWC2.h
@@ -18,6 +18,7 @@
 
 #include <android-base/expected.h>
 #include <android-base/thread_annotations.h>
+#include <ftl/expected.h>
 #include <ftl/future.h>
 #include <gui/HdrMetadata.h>
 #include <math/mat4.h>
@@ -120,7 +121,8 @@
     [[nodiscard]] virtual hal::Error getRequests(
             hal::DisplayRequest* outDisplayRequests,
             std::unordered_map<Layer*, hal::LayerRequest>* outLayerRequests) = 0;
-    [[nodiscard]] virtual hal::Error getConnectionType(ui::DisplayConnectionType*) const = 0;
+    [[nodiscard]] virtual ftl::Expected<ui::DisplayConnectionType, hal::Error> getConnectionType()
+            const = 0;
     [[nodiscard]] virtual hal::Error supportsDoze(bool* outSupport) const = 0;
     [[nodiscard]] virtual hal::Error getHdrCapabilities(
             android::HdrCapabilities* outCapabilities) const = 0;
@@ -213,7 +215,7 @@
     hal::Error getRequests(
             hal::DisplayRequest* outDisplayRequests,
             std::unordered_map<HWC2::Layer*, hal::LayerRequest>* outLayerRequests) override;
-    hal::Error getConnectionType(ui::DisplayConnectionType*) const override;
+    ftl::Expected<ui::DisplayConnectionType, hal::Error> getConnectionType() const override;
     hal::Error supportsDoze(bool* outSupport) const override EXCLUDES(mDisplayCapabilitiesMutex);
     hal::Error getHdrCapabilities(android::HdrCapabilities* outCapabilities) const override;
     hal::Error getOverlaySupport(aidl::android::hardware::graphics::composer3::OverlayProperties*
@@ -294,6 +296,8 @@
 
     const hal::HWDisplayId mId;
     hal::DisplayType mType;
+    // Cached on first call to getConnectionType.
+    mutable std::optional<ftl::Expected<ui::DisplayConnectionType, hal::Error>> mConnectionType;
     bool mIsConnected = false;
 
     using Layers = std::unordered_map<hal::HWLayerId, std::weak_ptr<HWC2::impl::Layer>>;
diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index bac24c7..cfa0339 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -364,15 +364,13 @@
     RETURN_IF_INVALID_DISPLAY(displayId, ui::DisplayConnectionType::Internal);
     const auto& hwcDisplay = mDisplayData.at(displayId).hwcDisplay;
 
-    ui::DisplayConnectionType type;
-    const auto error = hwcDisplay->getConnectionType(&type);
-
-    const auto FALLBACK_TYPE = hwcDisplay->getId() == mPrimaryHwcDisplayId
-            ? ui::DisplayConnectionType::Internal
-            : ui::DisplayConnectionType::External;
-
-    RETURN_IF_HWC_ERROR(error, displayId, FALLBACK_TYPE);
-    return type;
+    if (const auto connectionType = hwcDisplay->getConnectionType()) {
+        return connectionType.value();
+    } else {
+        LOG_HWC_ERROR(__func__, connectionType.error(), displayId);
+        return hwcDisplay->getId() == mPrimaryHwcDisplayId ? ui::DisplayConnectionType::Internal
+                                                           : ui::DisplayConnectionType::External;
+    }
 }
 
 bool HWComposer::isVsyncPeriodSwitchSupported(PhysicalDisplayId displayId) const {
diff --git a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
index a25804c..2cff2f2 100644
--- a/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
+++ b/services/surfaceflinger/tests/unittests/HWComposerTest.cpp
@@ -102,6 +102,29 @@
     ASSERT_TRUE(mHwc.isHeadless());
 }
 
+TEST_F(HWComposerTest, getDisplayConnectionType) {
+    // Unknown display.
+    EXPECT_EQ(mHwc.getDisplayConnectionType(PhysicalDisplayId::fromPort(0)),
+              ui::DisplayConnectionType::Internal);
+
+    constexpr hal::HWDisplayId kHwcDisplayId = 1;
+    expectHotplugConnect(kHwcDisplayId);
+
+    const auto info = mHwc.onHotplug(kHwcDisplayId, hal::Connection::CONNECTED);
+    ASSERT_TRUE(info);
+
+    EXPECT_CALL(*mHal, getDisplayConnectionType(kHwcDisplayId, _))
+            .WillOnce(DoAll(SetArgPointee<1>(IComposerClient::DisplayConnectionType::EXTERNAL),
+                            Return(V2_4::Error::NONE)));
+
+    // The first call caches the connection type.
+    EXPECT_EQ(mHwc.getDisplayConnectionType(info->id), ui::DisplayConnectionType::External);
+
+    // Subsequent calls return the cached connection type.
+    EXPECT_EQ(mHwc.getDisplayConnectionType(info->id), ui::DisplayConnectionType::External);
+    EXPECT_EQ(mHwc.getDisplayConnectionType(info->id), ui::DisplayConnectionType::External);
+}
+
 TEST_F(HWComposerTest, getActiveMode) {
     // Unknown display.
     EXPECT_EQ(mHwc.getActiveMode(PhysicalDisplayId::fromPort(0)), ftl::Unexpected(BAD_INDEX));
@@ -449,7 +472,7 @@
                                     {kMetadata1Name, kMetadata1Mandatory},
                                     {kMetadata2Name, kMetadata2Mandatory},
                             }),
-                            Return(hardware::graphics::composer::V2_4::Error::NONE)));
+                            Return(V2_4::Error::NONE)));
     EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::NONE));
     EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::NONE));
 
@@ -467,8 +490,7 @@
 
 TEST_F(HWComposerSetCallbackTest, handlesUnsupportedCallToGetLayerGenericMetadataKeys) {
     EXPECT_CALL(*mHal, getCapabilities()).WillOnce(Return(std::vector<aidl::Capability>{}));
-    EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_))
-            .WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
+    EXPECT_CALL(*mHal, getLayerGenericMetadataKeys(_)).WillOnce(Return(V2_4::Error::UNSUPPORTED));
     EXPECT_CALL(*mHal, getOverlaySupport(_)).WillOnce(Return(HalError::UNSUPPORTED));
     EXPECT_CALL(*mHal, getHdrConversionCapabilities(_)).WillOnce(Return(HalError::UNSUPPORTED));
     EXPECT_CALL(*mHal, registerCallback(_));
@@ -528,7 +550,7 @@
                 setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata1Name,
                                         kLayerGenericMetadata1Mandatory,
                                         kLayerGenericMetadata1Value))
-            .WillOnce(Return(hardware::graphics::composer::V2_4::Error::NONE));
+            .WillOnce(Return(V2_4::Error::NONE));
     auto result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata1Name,
                                                  kLayerGenericMetadata1Mandatory,
                                                  kLayerGenericMetadata1Value);
@@ -538,7 +560,7 @@
                 setLayerGenericMetadata(kDisplayId, kLayerId, kLayerGenericMetadata2Name,
                                         kLayerGenericMetadata2Mandatory,
                                         kLayerGenericMetadata2Value))
-            .WillOnce(Return(hardware::graphics::composer::V2_4::Error::UNSUPPORTED));
+            .WillOnce(Return(V2_4::Error::UNSUPPORTED));
     result = mLayer.setLayerGenericMetadata(kLayerGenericMetadata2Name,
                                             kLayerGenericMetadata2Mandatory,
                                             kLayerGenericMetadata2Value);
diff --git a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
index 7413235..602bdfc 100644
--- a/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
+++ b/services/surfaceflinger/tests/unittests/mock/DisplayHardware/MockHWC2.h
@@ -53,7 +53,8 @@
     MOCK_METHOD(hal::Error, getRequests,
                 (hal::DisplayRequest *, (std::unordered_map<Layer *, hal::LayerRequest> *)),
                 (override));
-    MOCK_METHOD(hal::Error, getConnectionType, (ui::DisplayConnectionType *), (const, override));
+    MOCK_METHOD((ftl::Expected<ui::DisplayConnectionType, hal::Error>), getConnectionType, (),
+                (const, override));
     MOCK_METHOD(hal::Error, supportsDoze, (bool *), (const, override));
     MOCK_METHOD(hal::Error, getHdrCapabilities, (android::HdrCapabilities *), (const, override));
     MOCK_METHOD(hal::Error, getDisplayedContentSamplingAttributes,