From: Marek Szyprowski <m.szyprow...@samsung.com>

Signed-off-by: Marek Szyprowski <m.szyprow...@samsung.com>
---
 drivers/media/video/videobuf2-core.c |   11 +++++++++++
 include/media/videobuf2-core.h       |    2 ++
 2 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/videobuf2-core.c 
b/drivers/media/video/videobuf2-core.c
index 4c3a82e..cb85874 100644
--- a/drivers/media/video/videobuf2-core.c
+++ b/drivers/media/video/videobuf2-core.c
@@ -836,6 +836,7 @@ void vb2_buffer_done(struct vb2_buffer *vb, enum 
vb2_buffer_state state)
 {
        struct vb2_queue *q = vb->vb2_queue;
        unsigned long flags;
+       int plane;
 
        if (vb->state != VB2_BUF_STATE_ACTIVE)
                return;
@@ -846,6 +847,10 @@ void vb2_buffer_done(struct vb2_buffer *vb, enum 
vb2_buffer_state state)
        dprintk(4, "Done processing on buffer %d, state: %d\n",
                        vb->v4l2_buf.index, vb->state);
 
+       /* sync buffers */
+       for (plane = 0; plane < vb->num_planes; ++plane)
+               call_memop(q, finish, vb->planes[plane].mem_priv);
+
        /* Add the buffer to the done buffers list */
        spin_lock_irqsave(&q->done_lock, flags);
        vb->state = state;
@@ -1136,9 +1141,15 @@ err:
 static void __enqueue_in_driver(struct vb2_buffer *vb)
 {
        struct vb2_queue *q = vb->vb2_queue;
+       int plane;
 
        vb->state = VB2_BUF_STATE_ACTIVE;
        atomic_inc(&q->queued_count);
+
+       /* sync buffers */
+       for (plane = 0; plane < vb->num_planes; ++plane)
+               call_memop(q, prepare, vb->planes[plane].mem_priv);
+
        q->ops->buf_queue(vb);
 }
 
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 35607f7..d8b8171 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -76,6 +76,8 @@ struct vb2_fileio_data;
  */
 struct vb2_mem_ops {
        void            *(*alloc)(void *alloc_ctx, unsigned long size);
+       void            (*prepare)(void *buf_priv);
+       void            (*finish)(void *buf_priv);
        void            (*put)(void *buf_priv);
 
        void            *(*get_userptr)(void *alloc_ctx, unsigned long vaddr,
-- 
1.7.5.4

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