diff --git a/libhwcomposer/hwcomposer.cpp b/libhwcomposer/hwcomposer.cpp
index d52686d..0190a59 100644
--- a/libhwcomposer/hwcomposer.cpp
+++ b/libhwcomposer/hwcomposer.cpp
@@ -406,11 +406,14 @@ inline static bool isBypassDoable(hwc_composer_device_t *dev, const int yuvCount
         return false;
     }
 
-    //Bypass is not efficient if rotation is needed.
+    //Bypass is not efficient if rotation or asynchronous mode is needed.
     for(int i = 0; i < list->numHwLayers; ++i) {
         if(list->hwLayers[i].transform) {
             return false;
         }
+        if(list->hwLayers[i].flags & HWC_LAYER_ASYNCHRONOUS) {
+            return false;
+        }
     }
 
     return (yuvCount == 0) && (ctx->hwcOverlayStatus == HWC_OVERLAY_CLOSED)
diff --git a/libqcomui/qcom_ui.cpp b/libqcomui/qcom_ui.cpp
index 502a651..6bc4eed 100644
--- a/libqcomui/qcom_ui.cpp
+++ b/libqcomui/qcom_ui.cpp
@@ -354,6 +354,12 @@ int updateLayerQcomFlags(eLayerAttrib attribute, bool enable, int& currentFlags)
             else
                 currentFlags &= ~LAYER_UPDATING;
         } break;
+        case LAYER_ASYNCHRONOUS_STATUS: {
+            if (enable)
+                currentFlags |= LAYER_ASYNCHRONOUS;
+            else
+                currentFlags &= ~LAYER_ASYNCHRONOUS;
+        } break;
         default: LOGE("%s: invalid attribute(0x%x)", __FUNCTION__, attribute);
                  break;
     }
@@ -375,6 +381,11 @@ int getPerFrameFlags(int hwclFlags, int layerFlags) {
     else
         flags |= HWC_LAYER_NOT_UPDATING;
 
+    if (layerFlags & LAYER_ASYNCHRONOUS)
+        flags |= HWC_LAYER_ASYNCHRONOUS;
+    else
+        flags &= ~HWC_LAYER_ASYNCHRONOUS;
+
     return flags;
 }
 
diff --git a/libqcomui/qcom_ui.h b/libqcomui/qcom_ui.h
index 6cad8ed..b1fe853 100644
--- a/libqcomui/qcom_ui.h
+++ b/libqcomui/qcom_ui.h
@@ -67,13 +67,15 @@ enum {
  */
 enum eLayerAttrib {
     LAYER_UPDATE_STATUS,
+    LAYER_ASYNCHRONOUS_STATUS,
 };
 
 /*
  * Layer Flags
  */
 enum {
-    LAYER_UPDATING = 1<<0,
+    LAYER_UPDATING     = 1<<0,
+    LAYER_ASYNCHRONOUS = 1<<1,
 };
 
 /*
@@ -81,6 +83,7 @@ enum {
  */
 enum {
     HWC_LAYER_NOT_UPDATING      = 0x00000002,
+    HWC_LAYER_ASYNCHRONOUS      = 0x00000004,
     HWC_USE_ORIGINAL_RESOLUTION = 0x10000000,
     HWC_DO_NOT_USE_OVERLAY      = 0x20000000,
     HWC_COMP_BYPASS             = 0x40000000,