[media] v4l: Tell user space we're using monotonic timestamps

Set buffer timestamp flags for videobuf, videobuf2 and drivers that use
neither.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/media/usb/cpia2/cpia2_v4l.c b/drivers/media/usb/cpia2/cpia2_v4l.c
index aeb9d2275725..d5d42b6e94be 100644
--- a/drivers/media/usb/cpia2/cpia2_v4l.c
+++ b/drivers/media/usb/cpia2/cpia2_v4l.c
@@ -825,6 +825,8 @@ static int cpia2_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
         else
                 buf->flags = 0;
 
+        buf->flags |= V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+
         switch (cam->buffers[buf->index].status) {
         case FRAME_EMPTY:
         case FRAME_ERROR:
@@ -943,7 +945,8 @@ static int cpia2_dqbuf(struct file *file, void *fh, struct v4l2_buffer *buf)
 
         buf->index = frame;
         buf->bytesused = cam->buffers[buf->index].length;
-        buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE;
+        buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_DONE
+                | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
         buf->field = V4L2_FIELD_NONE;
         buf->timestamp = cam->buffers[buf->index].timestamp;
         buf->sequence = cam->buffers[buf->index].seq;