To properly detect frame loss the driver must keep
track of a frame_count.
Furthermore, field_count use was erroneous because
in progressive format this must be incremented twice.
Signed-off-by: Javier Martin <javier.mar...@vista-silicon.com>
---
drivers/media/video/mx2_camera.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c
index ea1f4dc..ca76dd2 100644
--- a/drivers/media/video/mx2_camera.c
+++ b/drivers/media/video/mx2_camera.c
@@ -255,6 +255,7 @@ struct mx2_camera_dev {
dma_addr_t discard_buffer_dma;
size_t discard_size;
struct mx2_fmt_cfg *emma_prp;
+ u32 frame_count;
};
/* buffer for one video frame */
@@ -368,6 +369,7 @@ static int mx2_camera_add_device(struct soc_camera_device
*icd)
writel(pcdev->csicr1, pcdev->base_csi + CSICR1);
pcdev->icd = icd;
+ pcdev->frame_count = 0;
dev_info(icd->parent, "Camera driver attached to camera %d\n",
icd->devnum);
@@ -1211,7 +1213,8 @@ static void mx27_camera_frame_done_emma(struct
mx2_camera_dev *pcdev,
list_del(&vb->queue);
vb->state = state;
do_gettimeofday(&vb->ts);
- vb->field_count++;
+ vb->field_count = pcdev->frame_count * 2;
+ pcdev->frame_count++;
wake_up(&vb->done);
}
--
1.7.0.4
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