[PATCHv2 6/9] vb2: add new supports_tags queue flag

[Hans Verkuil <hverkuil@xs4all.nl>]

Add new flag to indicate that buffer tags are supported.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
---
 drivers/media/common/videobuf2/videobuf2-v4l2.c | 2 ++
 include/media/videobuf2-core.h                  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c
index 115f2868223a..d2d4985fb352 100644
--- a/drivers/media/common/videobuf2/videobuf2-v4l2.c
+++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c
@@ -666,6 +666,8 @@ static void fill_buf_caps(struct vb2_queue *q, u32 *caps)
 		*caps |= V4L2_BUF_CAP_SUPPORTS_DMABUF;
 	if (q->supports_requests)
 		*caps |= V4L2_BUF_CAP_SUPPORTS_REQUESTS;
+	if (q->supports_tags)
+		*caps |= V4L2_BUF_CAP_SUPPORTS_TAGS;
 }
 
 int vb2_reqbufs(struct vb2_queue *q, struct v4l2_requestbuffers *req)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index e86981d615ae..81f2dbfd0094 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -473,6 +473,7 @@ struct vb2_buf_ops {
  *              has not been called. This is a vb1 idiom that has been adopted
  *              also by vb2.
  * @supports_requests: this queue supports the Request API.
+ * @supports_tags: this queue supports tags in struct v4l2_buffer.
  * @uses_qbuf:	qbuf was used directly for this queue. Set to 1 the first
  *		time this is called. Set to 0 when the queue is canceled.
  *		If this is 1, then you cannot queue buffers from a request.
@@ -547,6 +548,7 @@ struct vb2_queue {
 	unsigned			allow_zero_bytesused:1;
 	unsigned		   quirk_poll_must_check_waiting_for_buffers:1;
 	unsigned			supports_requests:1;
+	unsigned			supports_tags:1;
 	unsigned			uses_qbuf:1;
 	unsigned			uses_requests:1;
 
-- 
2.19.1