Merge "hwc: split display: Fix flip on which to do crop swap"
diff --git a/common.mk b/common.mk
index 3fb003b..74d6032 100644
--- a/common.mk
+++ b/common.mk
@@ -27,7 +27,7 @@
     common_flags += -D__ARM_HAVE_NEON
 endif
 
-ifeq ($(call is-board-platform-in-list, msm8974 msm8226 msm8610), true)
+ifeq ($(call is-board-platform-in-list, msm8974 msm8226 msm8610 apq8084), true)
     common_flags += -DVENUS_COLOR_FORMAT
     common_flags += -DMDSS_TARGET
 endif
diff --git a/libcopybit/copybit_c2d.cpp b/libcopybit/copybit_c2d.cpp
index 193d067..385acb0 100644
--- a/libcopybit/copybit_c2d.cpp
+++ b/libcopybit/copybit_c2d.cpp
@@ -686,6 +686,9 @@
     ctx->blit_yuv_2_plane_count = 0;
     ctx->blit_yuv_3_plane_count = 0;
     ctx->blit_count = 0;
+    ctx->dst_surface_mapped = false;
+    ctx->dst_surface_base = 0;
+
     return status;
 }
 
diff --git a/libexternal/external.cpp b/libexternal/external.cpp
index 6f5cc09..97f031d 100644
--- a/libexternal/external.cpp
+++ b/libexternal/external.cpp
@@ -670,26 +670,28 @@
 bool ExternalDisplay::writeHPDOption(int userOption) const
 {
     bool ret = true;
-    char sysFsHPDFilePath[MAX_SYSFS_FILE_PATH];
-    snprintf(sysFsHPDFilePath ,sizeof(sysFsHPDFilePath),
-            "/sys/devices/virtual/graphics/fb%d/hpd", mHdmiFbNum);
-    int hdmiHPDFile = open(sysFsHPDFilePath,O_RDWR, 0);
-    if (hdmiHPDFile < 0) {
-        ALOGE("%s: state file '%s' not found : ret%d err str: %s", __FUNCTION__,
-                                sysFsHPDFilePath, hdmiHPDFile, strerror(errno));
-        ret = false;
-    } else {
-        int err = -1;
-        ALOGD_IF(DEBUG, "%s: option = %d", __FUNCTION__, userOption);
-        if(userOption)
-            err = write(hdmiHPDFile, "1", 2);
-        else
-            err = write(hdmiHPDFile, "0" , 2);
-        if (err <= 0) {
-            ALOGE("%s: file write failed '%s'", __FUNCTION__, sysFsHPDFilePath);
+    if(mHdmiFbNum != -1) {
+        char sysFsHPDFilePath[MAX_SYSFS_FILE_PATH];
+        snprintf(sysFsHPDFilePath ,sizeof(sysFsHPDFilePath),
+                 "/sys/devices/virtual/graphics/fb%d/hpd", mHdmiFbNum);
+        int hdmiHPDFile = open(sysFsHPDFilePath,O_RDWR, 0);
+        if (hdmiHPDFile < 0) {
+            ALOGE("%s: state file '%s' not found : ret%d err str: %s", __FUNCTION__,
+                  sysFsHPDFilePath, hdmiHPDFile, strerror(errno));
             ret = false;
+        } else {
+            int err = -1;
+            ALOGD_IF(DEBUG, "%s: option = %d", __FUNCTION__, userOption);
+            if(userOption)
+                err = write(hdmiHPDFile, "1", 2);
+            else
+                err = write(hdmiHPDFile, "0" , 2);
+            if (err <= 0) {
+                ALOGE("%s: file write failed '%s'", __FUNCTION__, sysFsHPDFilePath);
+                ret = false;
+            }
+            close(hdmiHPDFile);
         }
-        close(hdmiHPDFile);
     }
     return ret;
 }
diff --git a/libhwcomposer/hwc.cpp b/libhwcomposer/hwc.cpp
index d7375f8..244e0d6 100644
--- a/libhwcomposer/hwc.cpp
+++ b/libhwcomposer/hwc.cpp
@@ -122,7 +122,7 @@
     memset(&commit_info, 0, sizeof(struct mdp_display_commit));
     commit_info.flags = MDP_DISPLAY_COMMIT_OVERLAY;
     if(ioctl(ctx->dpyAttr[dpy].fd, MSMFB_DISPLAY_COMMIT, &commit_info) == -1) {
-       ALOGE("%s: MSMFB_DISPLAY_COMMIT for primary failed", __FUNCTION__);
+       ALOGE("%s: MSMFB_DISPLAY_COMMIT for dpy %d failed", __FUNCTION__,dpy);
        return -errno;
     }
     return 0;
@@ -418,43 +418,45 @@
     Locker::Autolock _l(ctx->mExtLock);
 
     if (LIKELY(list) && ctx->dpyAttr[dpy].isActive &&
-        !ctx->dpyAttr[dpy].isPause &&
         ctx->dpyAttr[dpy].connected) {
-        uint32_t last = list->numHwLayers - 1;
-        hwc_layer_1_t *fbLayer = &list->hwLayers[last];
-        int fd = -1; //FenceFD from the Copybit(valid in async mode)
-        bool copybitDone = false;
-        if(ctx->mCopyBit[dpy])
-            copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
 
-        if(list->numHwLayers > 1)
-            hwc_sync(ctx, list, dpy, fd);
+        if(!ctx->dpyAttr[dpy].isPause) {
+            uint32_t last = list->numHwLayers - 1;
+            hwc_layer_1_t *fbLayer = &list->hwLayers[last];
+            int fd = -1; //FenceFD from the Copybit(valid in async mode)
+            bool copybitDone = false;
+            if(ctx->mCopyBit[dpy])
+                copybitDone = ctx->mCopyBit[dpy]->draw(ctx, list, dpy, &fd);
 
-        // Dump the layers for external
-        if(ctx->mHwcDebug[dpy])
-            ctx->mHwcDebug[dpy]->dumpLayers(list);
+            if(list->numHwLayers > 1)
+                hwc_sync(ctx, list, dpy, fd);
 
-        if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
-            ALOGE("%s: MDPComp draw failed", __FUNCTION__);
-            ret = -1;
-        }
+            // Dump the layers for external
+            if(ctx->mHwcDebug[dpy])
+                ctx->mHwcDebug[dpy]->dumpLayers(list);
 
-        int extOnlyLayerIndex =
-            ctx->listStats[dpy].extOnlyLayerIndex;
-
-        private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
-        if(extOnlyLayerIndex!= -1) {
-            hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
-            hnd = (private_handle_t *)extLayer->handle;
-        } else if(copybitDone) {
-            hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
-        }
-
-        if(hnd && !isYuvBuffer(hnd)) {
-            if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
-                ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
+            if (!ctx->mMDPComp[dpy]->draw(ctx, list)) {
+                ALOGE("%s: MDPComp draw failed", __FUNCTION__);
                 ret = -1;
             }
+
+            int extOnlyLayerIndex =
+                    ctx->listStats[dpy].extOnlyLayerIndex;
+
+            private_handle_t *hnd = (private_handle_t *)fbLayer->handle;
+            if(extOnlyLayerIndex!= -1) {
+                hwc_layer_1_t *extLayer = &list->hwLayers[extOnlyLayerIndex];
+                hnd = (private_handle_t *)extLayer->handle;
+            } else if(copybitDone) {
+                hnd = ctx->mCopyBit[dpy]->getCurrentRenderBuffer();
+            }
+
+            if(hnd && !isYuvBuffer(hnd)) {
+                if (!ctx->mFBUpdate[dpy]->draw(ctx, hnd)) {
+                    ALOGE("%s: FBUpdate::draw fail!", __FUNCTION__);
+                    ret = -1;
+                }
+            }
         }
 
         if (display_commit(ctx, dpy) < 0) {
diff --git a/libhwcomposer/hwc_fbupdate.cpp b/libhwcomposer/hwc_fbupdate.cpp
index 7ed0577..2ec6019 100644
--- a/libhwcomposer/hwc_fbupdate.cpp
+++ b/libhwcomposer/hwc_fbupdate.cpp
@@ -34,8 +34,9 @@
 
 namespace ovutils = overlay::utils;
 
-IFBUpdate* IFBUpdate::getObject(const int& width, const int& dpy) {
-    if(width > MAX_DISPLAY_DIM) {
+IFBUpdate* IFBUpdate::getObject(const int& width, const int& rightSplit,
+        const int& dpy) {
+    if(width > MAX_DISPLAY_DIM || rightSplit) {
         return new FBUpdateHighRes(dpy);
     }
     return new FBUpdateLowRes(dpy);
@@ -223,7 +224,7 @@
 
 // Configure
 bool FBUpdateHighRes::configure(hwc_context_t *ctx,
-                                hwc_display_contents_1 *list, int fbZorder) {
+        hwc_display_contents_1 *list, int fbZorder) {
     bool ret = false;
     hwc_layer_1_t *layer = &list->hwLayers[list->numHwLayers - 1];
     if (LIKELY(ctx->mOverlay)) {
@@ -287,14 +288,33 @@
             getNonWormholeRegion(list, sourceCrop);
             displayFrame = sourceCrop;
         }
-        ovutils::Dim dcropL(sourceCrop.left, sourceCrop.top,
-                            (sourceCrop.right - sourceCrop.left) / 2,
-                            sourceCrop.bottom - sourceCrop.top);
+
+        const float xres = ctx->dpyAttr[mDpy].xres;
+        //Default even split for all displays with high res
+        float lSplit = xres / 2;
+        if(mDpy == HWC_DISPLAY_PRIMARY &&
+                qdutils::MDPVersion::getInstance().getLeftSplit()) {
+            //Override if split published by driver for primary
+            lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
+        }
+
+        const float lSplitRatio = lSplit / xres;
+
+        const float lCropWidth =
+                (sourceCrop.right - sourceCrop.left) * lSplitRatio;
+
+        ovutils::Dim dcropL(
+                sourceCrop.left,
+                sourceCrop.top,
+                lCropWidth,
+                sourceCrop.bottom - sourceCrop.top);
+
         ovutils::Dim dcropR(
-            sourceCrop.left + (sourceCrop.right - sourceCrop.left) / 2,
-            sourceCrop.top,
-            (sourceCrop.right - sourceCrop.left) / 2,
-            sourceCrop.bottom - sourceCrop.top);
+                sourceCrop.left + lCropWidth,
+                sourceCrop.top,
+                (sourceCrop.right - sourceCrop.left) - lCropWidth,
+                sourceCrop.bottom - sourceCrop.top);
+
         ov.setCrop(dcropL, destL);
         ov.setCrop(dcropR, destR);
 
@@ -304,19 +324,19 @@
         ov.setTransform(orient, destL);
         ov.setTransform(orient, destR);
 
-        const int halfWidth = (displayFrame.right - displayFrame.left) / 2;
+        const int lWidth = (lSplit - displayFrame.left);
+        const int rWidth = (displayFrame.right - lSplit);
         const int height = displayFrame.bottom - displayFrame.top;
 
-        const int halfDpy = ctx->dpyAttr[mDpy].xres / 2;
-        ovutils::Dim dposL(halfDpy - halfWidth,
+        ovutils::Dim dposL(displayFrame.left,
                            displayFrame.top,
-                           halfWidth,
+                           lWidth,
                            height);
         ov.setPosition(dposL, destL);
 
         ovutils::Dim dposR(0,
                            displayFrame.top,
-                           halfWidth,
+                           rWidth,
                            height);
         ov.setPosition(dposR, destR);
 
diff --git a/libhwcomposer/hwc_fbupdate.h b/libhwcomposer/hwc_fbupdate.h
index 5cf75f7..55cd655 100644
--- a/libhwcomposer/hwc_fbupdate.h
+++ b/libhwcomposer/hwc_fbupdate.h
@@ -45,7 +45,8 @@
     //Reset values
     virtual void reset();
     //Factory method that returns a low-res or high-res version
-    static IFBUpdate *getObject(const int& width, const int& dpy);
+    static IFBUpdate *getObject(const int& width, const int& rightSplit,
+            const int& dpy);
 
 protected:
     const int mDpy; // display to update
@@ -59,12 +60,12 @@
     explicit FBUpdateLowRes(const int& dpy);
     virtual ~FBUpdateLowRes() {};
     bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
-                                                          int fbZorder);
+            int fbZorder);
     bool draw(hwc_context_t *ctx, private_handle_t *hnd);
     void reset();
 private:
     bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
-                                                               int fbZorder);
+            int fbZorder);
     ovutils::eDest mDest; //pipe to draw on
 };
 
@@ -74,12 +75,12 @@
     explicit FBUpdateHighRes(const int& dpy);
     virtual ~FBUpdateHighRes() {};
     bool prepare(hwc_context_t *ctx, hwc_display_contents_1 *list,
-                                                             int fbZorder);
+            int fbZorder);
     bool draw(hwc_context_t *ctx, private_handle_t *hnd);
     void reset();
 private:
     bool configure(hwc_context_t *ctx, hwc_display_contents_1 *list,
-                                                            int fbZorder);
+            int fbZorder);
     ovutils::eDest mDestLeft; //left pipe to draw on
     ovutils::eDest mDestRight; //right pipe to draw on
 };
diff --git a/libhwcomposer/hwc_mdpcomp.cpp b/libhwcomposer/hwc_mdpcomp.cpp
index ba6cae7..d4ce253 100644
--- a/libhwcomposer/hwc_mdpcomp.cpp
+++ b/libhwcomposer/hwc_mdpcomp.cpp
@@ -40,12 +40,12 @@
 bool MDPComp::sEnableMixedMode = true;
 int MDPComp::sMaxPipesPerMixer = MAX_PIPES_PER_MIXER;
 
-MDPComp* MDPComp::getObject(const int& width, int dpy) {
-    if(width <= MAX_DISPLAY_DIM) {
-        return new MDPCompLowRes(dpy);
-    } else {
+MDPComp* MDPComp::getObject(const int& width, const int& rightSplit,
+        const int& dpy) {
+    if(width > MAX_DISPLAY_DIM || rightSplit) {
         return new MDPCompHighRes(dpy);
     }
+    return new MDPCompLowRes(dpy);
 }
 
 MDPComp::MDPComp(int dpy):mDpy(dpy){};
@@ -954,17 +954,24 @@
 //=============MDPCompHighRes===================================================
 
 int MDPCompHighRes::pipesNeeded(hwc_context_t *ctx,
-                                hwc_display_contents_1_t* list) {
+        hwc_display_contents_1_t* list) {
     int pipesNeeded = 0;
-    int hw_w = ctx->dpyAttr[mDpy].xres;
+    const int xres = ctx->dpyAttr[mDpy].xres;
+    //Default even split for all displays with high res
+    int lSplit = xres / 2;
+    if(mDpy == HWC_DISPLAY_PRIMARY &&
+            qdutils::MDPVersion::getInstance().getLeftSplit()) {
+        //Override if split published by driver for primary
+        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
+    }
 
     for(int i = 0; i < mCurrentFrame.layerCount; ++i) {
         if(!mCurrentFrame.isFBComposed[i]) {
             hwc_layer_1_t* layer = &list->hwLayers[i];
             hwc_rect_t dst = layer->displayFrame;
-            if(dst.left > hw_w/2) {
+            if(dst.left > lSplit) {
                 pipesNeeded++;
-            } else if(dst.right <= hw_w/2) {
+            } else if(dst.right <= lSplit) {
                 pipesNeeded++;
             } else {
                 pipesNeeded += 2;
@@ -975,17 +982,24 @@
 }
 
 bool MDPCompHighRes::acquireMDPPipes(hwc_context_t *ctx, hwc_layer_1_t* layer,
-                                     MdpPipeInfoHighRes& pipe_info,
-                                     ePipeType type) {
-    int hw_w = ctx->dpyAttr[mDpy].xres;
+        MdpPipeInfoHighRes& pipe_info,
+        ePipeType type) {
+    const int xres = ctx->dpyAttr[mDpy].xres;
+    //Default even split for all displays with high res
+    int lSplit = xres / 2;
+    if(mDpy == HWC_DISPLAY_PRIMARY &&
+            qdutils::MDPVersion::getInstance().getLeftSplit()) {
+        //Override if split published by driver for primary
+        lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
+    }
 
     hwc_rect_t dst = layer->displayFrame;
-    if(dst.left > hw_w/2) {
+    if(dst.left > lSplit) {
         pipe_info.lIndex = ovutils::OV_INVALID;
         pipe_info.rIndex = getMdpPipe(ctx, type);
         if(pipe_info.rIndex == ovutils::OV_INVALID)
             return false;
-    } else if (dst.right <= hw_w/2) {
+    } else if (dst.right <= lSplit) {
         pipe_info.rIndex = ovutils::OV_INVALID;
         pipe_info.lIndex = getMdpPipe(ctx, type);
         if(pipe_info.lIndex == ovutils::OV_INVALID)
@@ -1035,7 +1049,7 @@
  * Configures pipe(s) for MDP composition
  */
 int MDPCompHighRes::configure(hwc_context_t *ctx, hwc_layer_1_t *layer,
-                              PipeLayerPair& PipeLayerPair) {
+        PipeLayerPair& PipeLayerPair) {
     MdpPipeInfoHighRes& mdp_info =
         *(static_cast<MdpPipeInfoHighRes*>(PipeLayerPair.pipeInfo));
     eZorder zOrder = static_cast<eZorder>(mdp_info.zOrder);
diff --git a/libhwcomposer/hwc_mdpcomp.h b/libhwcomposer/hwc_mdpcomp.h
index 6e04918..908a658 100644
--- a/libhwcomposer/hwc_mdpcomp.h
+++ b/libhwcomposer/hwc_mdpcomp.h
@@ -46,7 +46,8 @@
     /* dumpsys */
     void dump(android::String8& buf);
 
-    static MDPComp* getObject(const int& width, const int dpy);
+    static MDPComp* getObject(const int& width, const int& rightSplit,
+            const int& dpy);
     /* Handler to invoke frame redraw on Idle Timer expiry */
     static void timeout_handler(void *udata);
     /* Initialize MDP comp*/
diff --git a/libhwcomposer/hwc_uevents.cpp b/libhwcomposer/hwc_uevents.cpp
index 1751cba..28b1849 100644
--- a/libhwcomposer/hwc_uevents.cpp
+++ b/libhwcomposer/hwc_uevents.cpp
@@ -31,6 +31,7 @@
 #include "hwc_copybit.h"
 #include "comptype.h"
 #include "external.h"
+#include "mdp_version.h"
 
 namespace qhwc {
 #define HWC_UEVENT_SWITCH_STR  "change@/devices/virtual/switch/"
@@ -53,8 +54,11 @@
 
 static void setup(hwc_context_t* ctx, int dpy, bool usecopybit)
 {
-    ctx->mFBUpdate[dpy] = IFBUpdate::getObject(ctx->dpyAttr[dpy].xres, dpy);
-    ctx->mMDPComp[dpy] =  MDPComp::getObject(ctx->dpyAttr[dpy].xres, dpy);
+    const int rSplit = 0; //Even split for external if at all
+    ctx->mFBUpdate[dpy] = IFBUpdate::getObject(ctx->dpyAttr[dpy].xres,
+            rSplit, dpy);
+    ctx->mMDPComp[dpy] =  MDPComp::getObject(ctx->dpyAttr[dpy].xres,
+            rSplit, dpy);
     if(usecopybit)
         ctx->mCopyBit[dpy] = new CopyBit();
 }
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index dc8e90f..46e25dc 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -126,6 +126,7 @@
     ctx->mMDP.version = qdutils::MDPVersion::getInstance().getMDPVersion();
     ctx->mMDP.hasOverlay = qdutils::MDPVersion::getInstance().hasOverlay();
     ctx->mMDP.panel = qdutils::MDPVersion::getInstance().getPanelType();
+    const int rightSplit = qdutils::MDPVersion::getInstance().getRightSplit();
     overlay::Overlay::initOverlay();
     ctx->mOverlay = overlay::Overlay::getInstance();
     ctx->mRotMgr = new RotMgr();
@@ -135,7 +136,7 @@
     //on what external we connect to.
     ctx->mFBUpdate[HWC_DISPLAY_PRIMARY] =
         IFBUpdate::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
-        HWC_DISPLAY_PRIMARY);
+                rightSplit, HWC_DISPLAY_PRIMARY);
 
     // Check if the target supports copybit compostion (dyn/mdp/c2d) to
     // decide if we need to open the copybit module.
@@ -152,7 +153,7 @@
 
     ctx->mMDPComp[HWC_DISPLAY_PRIMARY] =
          MDPComp::getObject(ctx->dpyAttr[HWC_DISPLAY_PRIMARY].xres,
-         HWC_DISPLAY_PRIMARY);
+                rightSplit, HWC_DISPLAY_PRIMARY);
 
     for (uint32_t i = 0; i < MAX_DISPLAYS; i++) {
         ctx->mHwcDebug[i] = new HwcDebug(i);
@@ -1035,16 +1036,17 @@
     hwc_rect_t tmp_cropL, tmp_dstL;
     hwc_rect_t tmp_cropR, tmp_dstR;
 
+    const int lSplit = qdutils::MDPVersion::getInstance().getLeftSplit();
     if(lDest != OV_INVALID) {
         tmp_cropL = crop;
         tmp_dstL = dst;
-        hwc_rect_t scissor = {0, 0, hw_w/2, hw_h };
+        hwc_rect_t scissor = {0, 0, lSplit, hw_h };
         qhwc::calculate_crop_rects(tmp_cropL, tmp_dstL, scissor, 0);
     }
     if(rDest != OV_INVALID) {
         tmp_cropR = crop;
         tmp_dstR = dst;
-        hwc_rect_t scissor = {hw_w/2, 0, hw_w, hw_h };
+        hwc_rect_t scissor = {lSplit, 0, hw_w, hw_h };
         qhwc::calculate_crop_rects(tmp_cropR, tmp_dstR, scissor, 0);
     }
 
@@ -1088,8 +1090,8 @@
     if(rDest != OV_INVALID) {
         PipeArgs pargR(mdpFlagsR, whf, z, isFg,
                 static_cast<eRotFlags>(rotFlags));
-        tmp_dstR.right = tmp_dstR.right - hw_w/2;
-        tmp_dstR.left = tmp_dstR.left - hw_w/2;
+        tmp_dstR.right = tmp_dstR.right - lSplit;
+        tmp_dstR.left = tmp_dstR.left - lSplit;
         if(configMdp(ctx->mOverlay, pargR, orient,
                 tmp_cropR, tmp_dstR, metadata, rDest) < 0) {
             ALOGE("%s: commit failed for right mixer config", __FUNCTION__);
diff --git a/libqdutils/mdp_version.cpp b/libqdutils/mdp_version.cpp
index cac6b1d..04dcf9f 100644
--- a/libqdutils/mdp_version.cpp
+++ b/libqdutils/mdp_version.cpp
@@ -101,8 +101,8 @@
             ptype = fb_finfo.id;
         }
         panel_type = *ptype;
-
     }
+    mPanelType = panel_type;
     close(fb_fd);
     mMDPVersion = mdp_version;
     mHasOverlay = false;
@@ -113,9 +113,26 @@
     if(mMDPVersion >= MDSS_V5) {
         //TODO get this from driver
         mMDPDownscale = 4;
-    }
 
-    mPanelType = panel_type;
+        char split[64];
+        FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
+        if(fp){
+            //Format "left right" space as delimiter
+            if(fread(split, sizeof(char), 64, fp)) {
+                mSplit.mLeft = atoi(split);
+                ALOGI_IF(mSplit.mLeft, "Left Split=%d", mSplit.mLeft);
+                char *rght = strpbrk(split, " ");
+                if(rght)
+                    mSplit.mRight = atoi(rght + 1);
+                ALOGI_IF(rght, "Right Split=%d", mSplit.mRight);
+            }
+        } else {
+            ALOGE("Failed to open mdss_fb_split node");
+        }
+
+        if(fp)
+            fclose(fp);
+    }
 }
 
 bool MDPVersion::supportsDecimation() {
@@ -132,7 +149,17 @@
 }
 
 bool MDPVersion::is8x26() {
-    return mMdpRev == MDSS_MDP_HW_REV_101;
+    // check for 8x26 variants
+    // chip variants have same major number and minor numbers usually vary
+    // for e.g., MDSS_MDP_HW_REV_101 is 0x10010000
+    //                                    1001       -  major number
+    //                                        0000   -  minor number
+    // 8x26 v1 minor number is 0000
+    //      v2 minor number is 0001 etc..
+    if( mMdpRev >= MDSS_MDP_HW_REV_101 && mMdpRev < MDSS_MDP_HW_REV_102) {
+        return true;
+    }
+    return false;
 }
 
 }; //namespace qdutils
diff --git a/libqdutils/mdp_version.h b/libqdutils/mdp_version.h
index f7b16fa..e26f4d3 100644
--- a/libqdutils/mdp_version.h
+++ b/libqdutils/mdp_version.h
@@ -74,6 +74,16 @@
 #define WRITEBACK_PANEL  'a'
 #define LVDS_PANEL       'b'
 
+class MDPVersion;
+
+struct Split {
+    int mLeft;
+    int mRight;
+    Split() : mLeft(0), mRight(0){}
+    int left() { return mLeft; }
+    int right() { return mRight; }
+    friend class MDPVersion;
+};
 
 class MDPVersion : public Singleton <MDPVersion>
 {
@@ -91,6 +101,8 @@
     uint32_t getMaxMDPDownscale();
     bool supportsBWC();
     bool is8x26();
+    int getLeftSplit() { return mSplit.left(); }
+    int getRightSplit() { return mSplit.right(); }
 private:
     int mMDPVersion;
     char mPanelType;
@@ -101,6 +113,7 @@
     uint8_t mDMAPipes;
     uint32_t mFeatures;
     uint32_t mMDPDownscale;
+    Split mSplit;
 };
 }; //namespace qdutils
 #endif //INCLUDE_LIBQCOMUTILS_MDPVER