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Date: Mon, 29 Aug 2016 19:55:53 +0200 From: Robert Jarzmik <robert.jarzmik@...e.fr> To: Mauro Carvalho Chehab <mchehab@...nel.org>, Guennadi Liakhovetski <g.liakhovetski@....de>, Jiri Kosina <trivial@...nel.org>, Hans Verkuil <hverkuil@...all.nl> Cc: linux-kernel@...r.kernel.org, linux-media@...r.kernel.org, Robert Jarzmik <robert.jarzmik@...e.fr> Subject: [PATCH v5 08/13] media: platform: pxa_camera: add buffer sequencing Add sequence numbers to completed buffers. Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr> --- Since v3: reset buffer sequence number in start_streaming() --- drivers/media/platform/soc_camera/pxa_camera.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c index 45583a40a4bd..9b294a14fa2e 100644 --- a/drivers/media/platform/soc_camera/pxa_camera.c +++ b/drivers/media/platform/soc_camera/pxa_camera.c @@ -223,6 +223,7 @@ struct pxa_camera_dev { struct list_head capture; spinlock_t lock; + unsigned int buf_sequence; struct pxa_buffer *active; struct tasklet_struct task_eof; @@ -423,10 +424,13 @@ static void pxa_camera_wakeup(struct pxa_camera_dev *pcdev, struct pxa_buffer *buf) { struct vb2_buffer *vb = &buf->vbuf.vb2_buf; + struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); /* _init is used to debug races, see comment in pxa_camera_reqbufs() */ list_del_init(&buf->queue); vb->timestamp = ktime_get_ns(); + vbuf->sequence = pcdev->buf_sequence++; + vbuf->field = V4L2_FIELD_NONE; vb2_buffer_done(vb, VB2_BUF_STATE_DONE); dev_dbg(pcdev_to_dev(pcdev), "%s dequeud buffer (buf=0x%p)\n", __func__, buf); @@ -1022,6 +1026,7 @@ static int pxac_vb2_start_streaming(struct vb2_queue *vq, unsigned int count) dev_dbg(pcdev_to_dev(pcdev), "%s(count=%d) active=%p\n", __func__, count, pcdev->active); + pcdev->buf_sequence = 0; if (!pcdev->active) pxa_camera_start_capture(pcdev); -- 2.1.4
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