[media] vb2: Add support for non monotonic timestamps

Not all drivers use monotonic timestamps. This patch adds a way to set the
timestamp type per every queue.
In addition, set proper timestamp type in drivers that I am sure that use
either MONOTONIC or COPY timestamps. Other drivers will correctly report
UNKNOWN timestamp type instead of assuming that all drivers use monotonic
timestamps.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index e84703c314ce..92c6bf11af74 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -804,6 +804,7 @@ static int s5p_mfc_open(struct file *file)
                 goto err_queue_init;
         }
         q->mem_ops = (struct vb2_mem_ops *)&vb2_dma_contig_memops;
+        q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
         ret = vb2_queue_init(q);
         if (ret) {
                 mfc_err("Failed to initialize videobuf2 queue(capture)\n");
@@ -825,6 +826,7 @@ static int s5p_mfc_open(struct file *file)
                 goto err_queue_init;
         }
         q->mem_ops = (struct vb2_mem_ops *)&vb2_dma_contig_memops;
+        q->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
         ret = vb2_queue_init(q);
         if (ret) {
                 mfc_err("Failed to initialize videobuf2 queue(output)\n");