[media] v4l: Convert drivers to use monotonic timestamps

Convert drivers using wall clock time (CLOCK_REALTIME) to timestamp from the
monotonic timer (CLOCK_MONOTONIC).

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

3 files changed, 5 insertions, 8 deletions

diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c
index 8be492cd8ed4..65f4264bd5b4 100644
--- a/drivers/media/platform/davinci/vpfe_capture.c
+++ b/drivers/media/platform/davinci/vpfe_capture.c
@@ -560,10 +560,7 @@ static void vpfe_schedule_bottom_field(struct vpfe_device *vpfe_dev)
 
 static void vpfe_process_buffer_complete(struct vpfe_device *vpfe_dev)
 {
-        struct timeval timevalue;
-
-        do_gettimeofday(&timevalue);
-        vpfe_dev->cur_frm->ts = timevalue;
+        v4l2_get_timestamp(&vpfe_dev->cur_frm->ts);
         vpfe_dev->cur_frm->state = VIDEOBUF_DONE;
         vpfe_dev->cur_frm->size = vpfe_dev->fmt.fmt.pix.sizeimage;
         wake_up_interruptible(&vpfe_dev->cur_frm->done);
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index a409ccefb380..5892d2bc8eee 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -411,7 +411,7 @@ static struct vb2_ops video_qops = {
  */
 static void vpif_process_buffer_complete(struct common_obj *common)
 {
-        do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp);
+        v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp);
         vb2_buffer_done(&common->cur_frm->vb,
                                             VB2_BUF_STATE_DONE);
         /* Make curFrm pointing to nextFrm */
diff --git a/drivers/media/platform/davinci/vpif_display.c b/drivers/media/platform/davinci/vpif_display.c
index 9f2b603be9c9..dd249c96126d 100644
--- a/drivers/media/platform/davinci/vpif_display.c
+++ b/drivers/media/platform/davinci/vpif_display.c
@@ -402,7 +402,7 @@ static void process_interlaced_mode(int fid, struct common_obj *common)
                 /* one frame is displayed If next frame is
                  *  available, release cur_frm and move on */
                 /* Copy frame display time */
-                do_gettimeofday(&common->cur_frm->vb.v4l2_buf.timestamp);
+                v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp);
                 /* Change status of the cur_frm */
                 vb2_buffer_done(&common->cur_frm->vb,
                                             VB2_BUF_STATE_DONE);
@@ -462,8 +462,8 @@ static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
                         if (!channel_first_int[i][channel_id]) {
                                 /* Mark status of the cur_frm to
                                  * done and unlock semaphore on it */
-                                do_gettimeofday(&common->cur_frm->vb.
-                                                v4l2_buf.timestamp);
+                                v4l2_get_timestamp(&common->cur_frm->vb.
+                                                   v4l2_buf.timestamp);
                                 vb2_buffer_done(&common->cur_frm->vb,
                                             VB2_BUF_STATE_DONE);
                                 /* Make cur_frm pointing to next_frm */