diff --git a/libgralloc/alloc_controller.cpp b/libgralloc/alloc_controller.cpp
index 5360554..42f3c77 100644
--- a/libgralloc/alloc_controller.cpp
+++ b/libgralloc/alloc_controller.cpp
@@ -508,6 +508,7 @@
         case HAL_PIXEL_FORMAT_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
         case HAL_PIXEL_FORMAT_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
         case HAL_PIXEL_FORMAT_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
+        case HAL_PIXEL_FORMAT_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
             size = alignedw * alignedh * ASTC_BLOCK_SIZE;
             break;
         default:
diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index 5c9f2d1..f157f6b 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -471,6 +471,9 @@
     case HWC_COLOR_FILL:
         value[0] = 1;
         break;
+    case HWC_MAX_WRITEBACK_WIDTH:
+        value[0] = qdutils::MAX_DISPLAY_DIM;
+        break;
     default:
         return -EINVAL;
     }
diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index 7be2f78..364dc02 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -233,7 +233,7 @@
     fbCount = numLayers;
     mdpCount = 0;
     needsRedraw = true;
-    fbZ = 0;
+    fbZ = -1;
 }
 
 void MDPComp::FrameInfo::map() {
@@ -630,7 +630,6 @@
     }
 
     mCurrentFrame.fbCount = 0;
-    mCurrentFrame.fbZ = -1;
     memcpy(&mCurrentFrame.isFBComposed, &mCurrentFrame.drop,
            sizeof(mCurrentFrame.isFBComposed));
     mCurrentFrame.mdpCount = mCurrentFrame.layerCount - mCurrentFrame.fbCount -
@@ -1120,14 +1119,14 @@
     int maxBatchCount = 0;
     int fbZ = -1;
 
-    /* All or Nothing is cached. No batching needed */
-    if(!mCurrentFrame.fbCount) {
-        mCurrentFrame.fbZ = -1;
+    /* Nothing is cached. No batching needed */
+    if(mCurrentFrame.fbCount == 0) {
         return true;
     }
-    if(!mCurrentFrame.mdpCount) {
-        mCurrentFrame.fbZ = 0;
-        return true;
+
+    /* No MDP comp layers, try to use other comp modes */
+    if(mCurrentFrame.mdpCount == 0) {
+        return false;
     }
 
     fbZ = getBatch(list, maxBatchStart, maxBatchEnd, maxBatchCount);
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index d30984b..d94e0e9 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -1250,15 +1250,14 @@
         }
     }
 
-    //Accumulate acquireFenceFds for MDP
+    //Accumulate acquireFenceFds for MDP Overlays
     if(list->outbufAcquireFenceFd >= 0) {
         //Writeback output buffer
         acquireFd[count++] = list->outbufAcquireFenceFd;
     }
 
     for(uint32_t i = 0; i < list->numHwLayers; i++) {
-        if((list->hwLayers[i].compositionType == HWC_OVERLAY  ||
-                        list->hwLayers[i].compositionType == HWC_BLIT) &&
+        if(list->hwLayers[i].compositionType == HWC_OVERLAY &&
                         list->hwLayers[i].acquireFenceFd >= 0) {
             if(UNLIKELY(swapzero))
                 acquireFd[count++] = -1;
@@ -1314,7 +1313,13 @@
                     !(layerProp[i].mFlags & HWC_VPUCOMP)) {
                 //If rotator has not already populated this field
                 // & if it's a not VPU layer
-                list->hwLayers[i].releaseFenceFd = dup(releaseFd);
+                if(list->hwLayers[i].compositionType == HWC_BLIT) {
+                    //For Blit, the app layers should be released when the Blit is
+                    //complete. This fd was passed from copybit->draw
+                    list->hwLayers[i].releaseFenceFd = dup(fd);
+                } else {
+                    list->hwLayers[i].releaseFenceFd = dup(releaseFd);
+                }
             }
         }
     }
diff --git a/libqservice/QServiceUtils.h b/libqservice/QServiceUtils.h
index a5f4f7f..699164d 100644
--- a/libqservice/QServiceUtils.h
+++ b/libqservice/QServiceUtils.h
@@ -49,7 +49,7 @@
 }
 
 inline android::status_t sendSingleParam(uint32_t command, uint32_t value) {
-    android::status_t err = (status_t) android::FAILED_TRANSACTION;
+    android::status_t err = (android::status_t) android::FAILED_TRANSACTION;
     android::sp<qService::IQService> binder = getBinder();
     android::Parcel inParcel, outParcel;
     inParcel.writeInt32(value);