diff --git a/core/java/android/service/wallpaper/WallpaperService.java b/core/java/android/service/wallpaper/WallpaperService.java
index e4c26e031738d..2befa15c5689b 100644
--- a/core/java/android/service/wallpaper/WallpaperService.java
+++ b/core/java/android/service/wallpaper/WallpaperService.java
@@ -283,7 +283,6 @@ public abstract class WallpaperService extends Service {
         private Display mDisplay;
         private Context mDisplayContext;
         private int mDisplayState;
-        private @Surface.Rotation int mDisplayInstallOrientation;
         private float mWallpaperDimAmount = 0.05f;
         private float mPreviousWallpaperDimAmount = mWallpaperDimAmount;
         private float mDefaultDimAmount = mWallpaperDimAmount;
@@ -1158,7 +1157,7 @@ public abstract class WallpaperService extends Service {
                             mSurfaceControl, mInsetsState, mTempControls, mSyncSeqIdBundle);
 
                     final int transformHint = SurfaceControl.rotationToBufferTransform(
-                            (mDisplayInstallOrientation + mDisplay.getRotation()) % 4);
+                            (mDisplay.getInstallOrientation() + mDisplay.getRotation()) % 4);
                     mSurfaceControl.setTransformHint(transformHint);
                     WindowLayout.computeSurfaceSize(mLayout, maxBounds, mWidth, mHeight,
                             mWinFrames.frame, false /* dragResizing */, mSurfaceSize);
@@ -1419,7 +1418,6 @@ public abstract class WallpaperService extends Service {
             mWallpaperDimAmount = mDefaultDimAmount;
             mPreviousWallpaperDimAmount = mWallpaperDimAmount;
             mDisplayState = mDisplay.getState();
-            mDisplayInstallOrientation = mDisplay.getInstallOrientation();
 
             if (DEBUG) Log.v(TAG, "onCreate(): " + this);
             onCreate(mSurfaceHolder);
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 1e2b241fbb512..64588d105d7c7 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -428,8 +428,6 @@ public final class ViewRootImpl implements ViewParent,
     final DisplayManager mDisplayManager;
     final String mBasePackageName;
 
-    private @Surface.Rotation int mDisplayInstallOrientation;
-
     final int[] mTmpLocation = new int[2];
 
     final TypedValue mTmpValue = new TypedValue();
@@ -1134,7 +1132,6 @@ public final class ViewRootImpl implements ViewParent,
             if (mView == null) {
                 mView = view;
 
-                mDisplayInstallOrientation = mDisplay.getInstallOrientation();
                 mViewLayoutDirectionInitial = mView.getRawLayoutDirection();
                 mFallbackEventHandler.setView(view);
                 mWindowAttributes.copyFrom(attrs);
@@ -1905,7 +1902,6 @@ public final class ViewRootImpl implements ViewParent,
         updateInternalDisplay(displayId, mView.getResources());
         mImeFocusController.onMovedToDisplay();
         mAttachInfo.mDisplayState = mDisplay.getState();
-        mDisplayInstallOrientation = mDisplay.getInstallOrientation();
         // Internal state updated, now notify the view hierarchy.
         mView.dispatchMovedToDisplay(mDisplay, config);
     }
@@ -8231,7 +8227,7 @@ public final class ViewRootImpl implements ViewParent,
         }
 
         final int transformHint = SurfaceControl.rotationToBufferTransform(
-                (mDisplayInstallOrientation + mDisplay.getRotation()) % 4);
+                (mDisplay.getInstallOrientation() + mDisplay.getRotation()) % 4);
 
         WindowLayout.computeSurfaceSize(mWindowAttributes, winConfig.getMaxBounds(), requestedWidth,
                 requestedHeight, mWinFrameInScreen, mPendingDragResizing, mSurfaceSize);
@@ -8256,7 +8252,7 @@ public final class ViewRootImpl implements ViewParent,
         }
 
         mLastTransformHint = transformHint;
-      
+
         mSurfaceControl.setTransformHint(transformHint);
 
         if (mAttachInfo.mContentCaptureManager != null) {