[media] sta2x11: use monotonic timestamp

V4L2 drivers should use MONOTONIC timestamps instead of gettimeofday, which is
affected by daylight savings time.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/pci/sta2x11/sta2x11_vip.c

@@ -813,7 +813,7 @@ static irqreturn_t vip_irq(int irq, struct sta2x11_vip *vip)
 		/* Disable acquisition */
 		reg_write(vip, DVP_CTL, reg_read(vip, DVP_CTL) & ~DVP_CTL_ENA);
 		/* Remove the active buffer from the list */
-		do_gettimeofday(&vip->active->vb.v4l2_buf.timestamp);
+		v4l2_get_timestamp(&vip->active->vb.v4l2_buf.timestamp);
 		vip->active->vb.v4l2_buf.sequence = vip->sequence++;
 		vb2_buffer_done(&vip->active->vb, VB2_BUF_STATE_DONE);
 	}
@@ -864,6 +864,7 @@ static int sta2x11_vip_init_buffer(struct sta2x11_vip *vip)
 	vip->vb_vidq.buf_struct_size = sizeof(struct vip_buffer);
 	vip->vb_vidq.ops = &vip_video_qops;
 	vip->vb_vidq.mem_ops = &vb2_dma_contig_memops;
+	vip->vb_vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 	err = vb2_queue_init(&vip->vb_vidq);
 	if (err)
 		return err;