[media] v4l: omap4iss: csi2: Perform real frame number propagation

Compute the pipeline frame number from the frame number sent by the
sensor instead of incrementing the frame number in software. This
improves dropped frames detection.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/staging/media/omap4iss/iss.c b/drivers/staging/media/omap4iss/iss.c
index cc1dfad..d6534f5 100644 (file)
--- a/drivers/staging/media/omap4iss/iss.c
+++ b/drivers/staging/media/omap4iss/iss.c
@@ -612,7 +612,12 @@ static int iss_pipeline_enable(struct iss_pipeline *pipe,
                ret = v4l2_subdev_call(subdev, video, s_stream, mode);
                if (ret < 0 && ret != -ENOIOCTLCMD)
                        return ret;
+
+               if (subdev == &iss->csi2a.subdev ||
+                   subdev == &iss->csi2b.subdev)
+                       pipe->do_propagation = true;
        }
+
        iss_print_status(pipe->output->iss);
        return 0;
 }

diff --cc drivers/staging/media/omap4iss/iss_csi2.c
Simple merge

diff --cc drivers/staging/media/omap4iss/iss_csi2.h
Simple merge

diff --cc drivers/staging/media/omap4iss/iss_regs.h
Simple merge