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media: cedrus: add buf_out_validate callback

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Validate the field for an output buffer. This ensures that the
field is validated when the buffer is queued to a request, and
not when the request itself is queued, which is too late.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-01-16 10:01:16 -02:00 committed by Mauro Carvalho Chehab
parent 1f2f510753
commit 6b3e4c4cc1
1 changed files with 9 additions and 0 deletions
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9
drivers/staging/media/sunxi/cedrus/cedrus_video.c
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@ -416,6 +416,14 @@ static void cedrus_buf_cleanup(struct vb2_buffer *vb)
ctx->dst_bufs[vb->index] = NULL;
}
static int cedrus_buf_out_validate(struct vb2_buffer *vb)
{
struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
vbuf->field = V4L2_FIELD_NONE;
return 0;
}
static int cedrus_buf_prepare(struct vb2_buffer *vb)
{
struct vb2_queue *vq = vb->vb2_queue;
@ -493,6 +501,7 @@ static struct vb2_ops cedrus_qops = {
.buf_init = cedrus_buf_init,
.buf_cleanup = cedrus_buf_cleanup,
.buf_queue = cedrus_buf_queue,
.buf_out_validate = cedrus_buf_out_validate,
.buf_request_complete = cedrus_buf_request_complete,
.start_streaming = cedrus_start_streaming,
.stop_streaming = cedrus_stop_streaming,