[media] v4l: Handle buffer timestamp flags correctly

For COPY timestamps, buffer timestamp source flags will traverse the queue
untouched.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 42a8568..79eb9ba 100644 (file)
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -488,7 +488,16 @@ static void __fill_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b)
         * Clear any buffer state related flags.
         */
        b->flags &= ~V4L2_BUFFER_MASK_FLAGS;
-       b->flags |= q->timestamp_flags;
+       b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK;
+       if ((q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) !=
+           V4L2_BUF_FLAG_TIMESTAMP_COPY) {
+               /*
+                * For non-COPY timestamps, drop timestamp source bits
+                * and obtain the timestamp source from the queue.
+                */
+               b->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+               b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+       }
 
        switch (vb->state) {
        case VB2_BUF_STATE_QUEUED:
@@ -1031,6 +1040,16 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b
 
        /* Zero flags that the vb2 core handles */
        vb->v4l2_buf.flags = b->flags & ~V4L2_BUFFER_MASK_FLAGS;
+       if ((vb->vb2_queue->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) !=
+           V4L2_BUF_FLAG_TIMESTAMP_COPY || !V4L2_TYPE_IS_OUTPUT(b->type)) {
+               /*
+                * Non-COPY timestamps and non-OUTPUT queues will get
+                * their timestamp and timestamp source flags from the
+                * queue.
+                */
+               vb->v4l2_buf.flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+       }
+
        if (V4L2_TYPE_IS_OUTPUT(b->type)) {
                /*
                 * For output buffers mask out the timecode flag: