Make gsc-m2m propagate the timestamp field from source to destination
buffers

Signed-off-by: John Sheu <s...@google.com>
Signed-off-by: Shaik Ameer Basha <shaik.am...@samsung.com>
---
 drivers/media/platform/exynos-gsc/gsc-m2m.c |   19 ++++++++++++-------
 1 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c 
b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index 047f0f0..1139276 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -99,22 +99,27 @@ static void gsc_m2m_job_abort(void *priv)
                gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
 }
 
-static int gsc_fill_addr(struct gsc_ctx *ctx)
+static int gsc_get_bufs(struct gsc_ctx *ctx)
 {
        struct gsc_frame *s_frame, *d_frame;
-       struct vb2_buffer *vb = NULL;
+       struct vb2_buffer *src_vb, *dst_vb;
        int ret;
 
        s_frame = &ctx->s_frame;
        d_frame = &ctx->d_frame;
 
-       vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
-       ret = gsc_prepare_addr(ctx, vb, s_frame, &s_frame->addr);
+       src_vb = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
+       ret = gsc_prepare_addr(ctx, src_vb, s_frame, &s_frame->addr);
+
+       dst_vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
+       ret |= gsc_prepare_addr(ctx, dst_vb, d_frame, &d_frame->addr);
        if (ret)
                return ret;
 
-       vb = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
-       return gsc_prepare_addr(ctx, vb, d_frame, &d_frame->addr);
+       memcpy(&dst_vb->v4l2_buf.timestamp, &src_vb->v4l2_buf.timestamp,
+               sizeof(dst_vb->v4l2_buf.timestamp));
+
+       return 0;
 }
 
 static void gsc_m2m_device_run(void *priv)
@@ -148,7 +153,7 @@ static void gsc_m2m_device_run(void *priv)
                goto put_device;
        }
 
-       ret = gsc_fill_addr(ctx);
+       ret = gsc_get_bufs(ctx);
        if (ret) {
                pr_err("Wrong address");
                goto put_device;
-- 
1.7.0.4

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