From 3e189158c5da0e2de873271b83ad11d8f766cc27 Mon Sep 17 00:00:00 2001
From: Neti Ravi Kumar <ravineti@codeaurora.org>
Date: Wed, 21 Mar 2012 16:09:33 +0530
Subject: [PATCH] Unlock overlay buffers before going to suspend

In video playback through overlay, it is observed that, during
suspend/resume, genlock TIMEOUT errors are seen at the component
level.

drawLayerUsingOverlay() function locks buffers, but doesn't unlock
them, before going to suspend, making the genlock_lock_buffer calls
from video component to fail.

Unlock any overlay buffers before going to suspend.

CRs-fixed: 342878
(cherry picked from commit 4ffcd156710184fe492294fd55beea7d5f412116)

Change-Id: Id0165f370d05d9b4bdf71ddaea15cf00caa65896
---
 libhwcomposer/hwcomposer.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libhwcomposer/hwcomposer.cpp b/libhwcomposer/hwcomposer.cpp
index 8f6f037..d4d133f 100644
--- a/libhwcomposer/hwcomposer.cpp
+++ b/libhwcomposer/hwcomposer.cpp
@@ -1646,9 +1646,11 @@ static int hwc_set(hwc_composer_device_t *dev,
         ctx->nPipesUsed = 0;
 #endif
         ctx->hwcOverlayStatus =  HWC_OVERLAY_PREPARE_TO_CLOSE;
+        unlockPreviousOverlayBuffer(ctx);
     }
     
 
+
     bool canSkipComposition = list && list->flags & HWC_SKIP_COMPOSITION;
 #ifdef COMPOSITION_BYPASS
     unlockPreviousBypassBuffers(ctx);