diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index 2d6497e..b130193 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -3012,7 +3012,6 @@
         return -1;
     }
     close(fd);
-    sIsPartialUpdateActive = enable;
     return 0;
 }
 
diff --git a/libhwcomposer/hwc_mdpcomp.h b/libhwcomposer/hwc_mdpcomp.h
index a83f51f..7752384 100644
--- a/libhwcomposer/hwc_mdpcomp.h
+++ b/libhwcomposer/hwc_mdpcomp.h
@@ -58,6 +58,8 @@
     static void setMaxPipesPerMixer(const uint32_t value);
     static int setPartialUpdatePref(hwc_context_t *ctx, bool enable);
     static bool getPartialUpdatePref(hwc_context_t *ctx);
+    static void enablePartialUpdate(bool enable)
+                                          { sIsPartialUpdateActive = enable; };
     void setDynRefreshRate(hwc_context_t *ctx, hwc_display_contents_1_t* list);
 
 protected:
diff --git a/libhwcomposer/hwc_qclient.cpp b/libhwcomposer/hwc_qclient.cpp
index 487ec77..1e55715 100644
--- a/libhwcomposer/hwc_qclient.cpp
+++ b/libhwcomposer/hwc_qclient.cpp
@@ -313,11 +313,25 @@
     }
 }
 
-static status_t setPartialUpdatePref(hwc_context_t *ctx, uint32_t enable) {
-    ALOGD("%s: enable: %d", __FUNCTION__, enable);
-    if(qhwc::MDPComp::setPartialUpdatePref(ctx, (bool)enable) < 0)
-        return NO_INIT;
-    return NO_ERROR;
+static status_t setPartialUpdateState(hwc_context_t *ctx, uint32_t state) {
+    ALOGD("%s: state: %d", __FUNCTION__, state);
+    switch(state) {
+        case IQService::PREF_PARTIAL_UPDATE:
+            if(qhwc::MDPComp::setPartialUpdatePref(ctx, true) < 0)
+                return NO_INIT;
+            return NO_ERROR;
+        case IQService::PREF_POST_PROCESSING:
+            if(qhwc::MDPComp::setPartialUpdatePref(ctx, false) < 0)
+                return NO_INIT;
+            qhwc::MDPComp::enablePartialUpdate(false);
+            return NO_ERROR;
+        case IQService::ENABLE_PARTIAL_UPDATE:
+            qhwc::MDPComp::enablePartialUpdate(true);
+            return NO_ERROR;
+        default:
+            ALOGE("%s: Invalid state", __FUNCTION__);
+            return NO_ERROR;
+    };
 }
 
 static void toggleScreenUpdate(hwc_context_t* ctx, uint32_t on) {
@@ -404,7 +418,7 @@
             setMaxPipesPerMixer(mHwcContext, inParcel);
             break;
         case IQService::SET_PARTIAL_UPDATE:
-            ret = setPartialUpdatePref(mHwcContext, inParcel->readInt32());
+            ret = setPartialUpdateState(mHwcContext, inParcel->readInt32());
             break;
         case IQService::TOGGLE_BWC:
             toggleBWC(mHwcContext, inParcel);
diff --git a/libqservice/IQService.h b/libqservice/IQService.h
index 78cbd2a..c77f5f5 100644
--- a/libqservice/IQService.h
+++ b/libqservice/IQService.h
@@ -82,6 +82,12 @@
     };
 
     enum {
+        PREF_PARTIAL_UPDATE,
+        PREF_POST_PROCESSING,
+        ENABLE_PARTIAL_UPDATE,
+    };
+
+    enum {
         DUMP_PRIMARY_DISPLAY,
         DUMP_HDMI_DISPLAY,
         DUMP_VIRTUAL_DISPLAY,