[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 <[e-mail]>
Acked-by: Hans Verkuil <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/common/saa7146/saa7146_fops.c

···
 	}
 
 	q->curr->vb.state = state;
-	do_gettimeofday(&q->curr->vb.ts);
+	v4l2_get_timestamp(&q->curr->vb.ts);
 	wake_up(&q->curr->vb.done);
 
 	q->curr = NULL;

drivers/media/pci/bt8xx/bttv-driver.c

···
 {
 	struct timeval ts;
 
-	do_gettimeofday(&ts);
+	v4l2_get_timestamp(&ts);
 
 	if (wakeup->top == wakeup->bottom) {
 		if (NULL != wakeup->top && curr->top != wakeup->top) {
···
 	if (NULL == wakeup)
 		return;
 
-	do_gettimeofday(&ts);
+	v4l2_get_timestamp(&ts);
 	wakeup->vb.ts = ts;
 	wakeup->vb.field_count = btv->field_count;
 	wakeup->vb.state = state;
···
 	btv->curr.top = NULL;
 	bttv_risc_hook(btv, RISC_SLOT_O_FIELD, NULL, 0);
 
-	do_gettimeofday(&wakeup->vb.ts);
+	v4l2_get_timestamp(&wakeup->vb.ts);
 	wakeup->vb.field_count = btv->field_count;
 	wakeup->vb.state = VIDEOBUF_DONE;
 	wake_up(&wakeup->vb.done);

drivers/media/pci/cx23885/cx23885-core.c

···
 		if ((s16) (count - buf->count) < 0)
 			break;
 
-		do_gettimeofday(&buf->vb.ts);
+		v4l2_get_timestamp(&buf->vb.ts);
 		dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 			count, buf->count);
 		buf->vb.state = VIDEOBUF_DONE;

drivers/media/pci/cx23885/cx23885-video.c

···
 		if ((s16) (count - buf->count) < 0)
 			break;
 
-		do_gettimeofday(&buf->vb.ts);
+		v4l2_get_timestamp(&buf->vb.ts);
 		dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
 			count, buf->count);
 		buf->vb.state = VIDEOBUF_DONE;

drivers/media/pci/cx25821/cx25821-video.c

···
 		if ((s16) (count - buf->count) < 0)
 			break;
 
-		do_gettimeofday(&buf->vb.ts);
+		v4l2_get_timestamp(&buf->vb.ts);
 		buf->vb.state = VIDEOBUF_DONE;
 		list_del(&buf->vb.queue);
 		wake_up(&buf->vb.done);

drivers/media/pci/cx88/cx88-core.c

···
 		 * up to 32767 buffers in flight... */
 		if ((s16) (count - buf->count) < 0)
 			break;
-		do_gettimeofday(&buf->vb.ts);
+		v4l2_get_timestamp(&buf->vb.ts);
 		dprintk(2,"[%p/%d] wakeup reg=%d buf=%d\n",buf,buf->vb.i,
 			count, buf->count);
 		buf->vb.state = VIDEOBUF_DONE;

drivers/media/pci/meye/meye.c

···
 				      mchip_hsize() * mchip_vsize() * 2);
 		meye.grab_buffer[reqnr].size = mchip_hsize() * mchip_vsize() * 2;
 		meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
-		do_gettimeofday(&meye.grab_buffer[reqnr].timestamp);
+		v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
 		meye.grab_buffer[reqnr].sequence = sequence++;
 		kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
 				sizeof(int), &meye.doneq_lock);
···
 		       size);
 		meye.grab_buffer[reqnr].size = size;
 		meye.grab_buffer[reqnr].state = MEYE_BUF_DONE;
-		do_gettimeofday(&meye.grab_buffer[reqnr].timestamp);
+		v4l2_get_timestamp(&meye.grab_buffer[reqnr].timestamp);
 		meye.grab_buffer[reqnr].sequence = sequence++;
 		kfifo_in_locked(&meye.doneq, (unsigned char *)&reqnr,
 				sizeof(int), &meye.doneq_lock);

drivers/media/pci/saa7134/saa7134-core.c

···
 
 	/* finish current buffer */
 	q->curr->vb.state = state;
-	do_gettimeofday(&q->curr->vb.ts);
+	v4l2_get_timestamp(&q->curr->vb.ts);
 	wake_up(&q->curr->vb.done);
 	q->curr = NULL;
 }

drivers/media/pci/sta2x11/sta2x11_vip.c

···
 
 	REG_WRITE(vip, DVP_CTL, REG_READ(vip, DVP_CTL) & ~DVP_CTL_ENA);
 	if (vip->active) {
-		do_gettimeofday(&vip->active->ts);
+		v4l2_get_timestamp(&vip->active->ts);
 		vip->active->field_count++;
 		vip->active->state = VIDEOBUF_DONE;
 		wake_up(&vip->active->done);

drivers/media/pci/zoran/zoran_device.c

···
 		}
 		frame = zr->jpg_pend[zr->jpg_dma_tail & BUZ_MASK_FRAME];
 		buffer = &zr->jpg_buffers.buffer[frame];
-		do_gettimeofday(&buffer->bs.timestamp);
+		v4l2_get_timestamp(&buffer->bs.timestamp);
 
 		if (zr->codec_mode == BUZ_MODE_MOTION_COMPRESS) {
 			buffer->bs.length = (stat_com & 0x7fffff) >> 1;
···
 
 						zr->v4l_buffers.buffer[zr->v4l_grab_frame].state = BUZ_STATE_DONE;
 						zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.seq = zr->v4l_grab_seq;
-						do_gettimeofday(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
+						v4l2_get_timestamp(&zr->v4l_buffers.buffer[zr->v4l_grab_frame].bs.timestamp);
 						zr->v4l_grab_frame = NO_GRAB_ACTIVE;
 						zr->v4l_pend_tail++;
 					}

drivers/media/platform/blackfin/bfin_capture.c

···
 {
 	struct ppi_if *ppi = dev_id;
 	struct bcap_device *bcap_dev = ppi->priv;
-	struct timeval timevalue;
 	struct vb2_buffer *vb = &bcap_dev->cur_frm->vb;
 	dma_addr_t addr;
 
 	spin_lock(&bcap_dev->lock);
 
 	if (bcap_dev->cur_frm != bcap_dev->next_frm) {
-		do_gettimeofday(&timevalue);
-		vb->v4l2_buf.timestamp = timevalue;
+		v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 		vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
 		bcap_dev->cur_frm = bcap_dev->next_frm;
 	}

drivers/media/platform/davinci/vpfe_capture.c

···
 
 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);

drivers/media/platform/davinci/vpif_capture.c

···
  */
 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 */

drivers/media/platform/davinci/vpif_display.c

···
 		/* 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);
···
 			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 */

drivers/media/platform/fsl-viu.c

···
 
 		if (waitqueue_active(&buf->vb.done)) {
 			list_del(&buf->vb.queue);
-			do_gettimeofday(&buf->vb.ts);
+			v4l2_get_timestamp(&buf->vb.ts);
 			buf->vb.state = VIDEOBUF_DONE;
 			buf->vb.field_count++;
 			wake_up(&buf->vb.done);

drivers/media/platform/omap/omap_vout.c

···
 		return;
 
 	spin_lock(&vout->vbq_lock);
-	do_gettimeofday(&timevalue);
+	v4l2_get_timestamp(&timevalue);
 
 	switch (cur_display->type) {
 	case OMAP_DISPLAY_TYPE_DSI:

drivers/media/platform/omap24xxcam.c

···
 		omap24xxcam_core_disable(cam);
 	spin_unlock_irqrestore(&cam->core_enable_disable_lock, flags);
 
-	do_gettimeofday(&vb->ts);
+	v4l2_get_timestamp(&vb->ts);
 	vb->field_count = atomic_add_return(2, &fh->field_count);
 	if (csr & csr_error) {
 		vb->state = VIDEOBUF_ERROR;

drivers/media/platform/sh_vou.c

···
 	list_del(&vb->queue);
 
 	vb->state = VIDEOBUF_DONE;
-	do_gettimeofday(&vb->ts);
+	v4l2_get_timestamp(&vb->ts);
 	vb->field_count++;
 	wake_up(&vb->done);
 

drivers/media/platform/soc_camera/atmel-isi.c

···
 		struct frame_buffer *buf = isi->active;
 
 		list_del_init(&buf->list);
-		do_gettimeofday(&vb->v4l2_buf.timestamp);
+		v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 		vb->v4l2_buf.sequence = isi->sequence++;
 		vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
 	}

drivers/media/platform/soc_camera/mx1_camera.c

···
 	/* _init is used to debug races, see comment in mx1_camera_reqbufs() */
 	list_del_init(&vb->queue);
 	vb->state = VIDEOBUF_DONE;
-	do_gettimeofday(&vb->ts);
+	v4l2_get_timestamp(&vb->ts);
 	vb->field_count++;
 	wake_up(&vb->done);
 

drivers/media/platform/soc_camera/mx2_camera.c

···
 	dev_dbg(pcdev->dev, "%s (vb=0x%p) 0x%p %lu\n", __func__,
 		vb, vb2_plane_vaddr(vb, 0), vb2_get_plane_payload(vb, 0));
 
-	do_gettimeofday(&vb->v4l2_buf.timestamp);
+	v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 	vb->v4l2_buf.sequence++;
 	vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
 
···
 				vb2_get_plane_payload(vb, 0));
 
 		list_del_init(&buf->internal.queue);
-		do_gettimeofday(&vb->v4l2_buf.timestamp);
+		v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 		vb->v4l2_buf.sequence = pcdev->frame_count;
 		if (err)
 			vb2_buffer_done(vb, VB2_BUF_STATE_ERROR);

drivers/media/platform/soc_camera/mx3_camera.c

···
 		struct mx3_camera_buffer *buf = to_mx3_vb(vb);
 
 		list_del_init(&buf->queue);
-		do_gettimeofday(&vb->v4l2_buf.timestamp);
+		v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 		vb->v4l2_buf.field = mx3_cam->field;
 		vb->v4l2_buf.sequence = mx3_cam->sequence++;
 		vb2_buffer_done(vb, VB2_BUF_STATE_DONE);

drivers/media/platform/soc_camera/omap1_camera.c

···
 			suspend_capture(pcdev);
 		}
 		vb->state = result;
-		do_gettimeofday(&vb->ts);
+		v4l2_get_timestamp(&vb->ts);
 		if (result != VIDEOBUF_ERROR)
 			vb->field_count++;
 		wake_up(&vb->done);

drivers/media/platform/soc_camera/pxa_camera.c

···
 	/* _init is used to debug races, see comment in pxa_camera_reqbufs() */
 	list_del_init(&vb->queue);
 	vb->state = VIDEOBUF_DONE;
-	do_gettimeofday(&vb->ts);
+	v4l2_get_timestamp(&vb->ts);
 	vb->field_count++;
 	wake_up(&vb->done);
 	dev_dbg(pcdev->soc_host.v4l2_dev.dev, "%s dequeud buffer (vb=0x%p)\n",

drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c

···
 		pcdev->active = NULL;
 
 	ret = sh_mobile_ceu_capture(pcdev);
-	do_gettimeofday(&vb->v4l2_buf.timestamp);
+	v4l2_get_timestamp(&vb->v4l2_buf.timestamp);
 	if (!ret) {
 		vb->v4l2_buf.field = pcdev->field;
 		vb->v4l2_buf.sequence = pcdev->sequence++;

drivers/media/platform/timblogiw.c

···
 
 	if (vb->state != VIDEOBUF_ERROR) {
 		list_del(&vb->queue);
-		do_gettimeofday(&vb->ts);
+		v4l2_get_timestamp(&vb->ts);
 		vb->field_count = fh->frame_count * 2;
 		vb->state = VIDEOBUF_DONE;
 

drivers/media/platform/vino.c

···
 
 		if ((!handled_a) && (done_a || skip_a)) {
 			if (!skip_a) {
-				do_gettimeofday(&vino_drvdata->
-						a.int_data.timestamp);
+				v4l2_get_timestamp(
+					&vino_drvdata->a.int_data.timestamp);
 				vino_drvdata->a.int_data.frame_counter = fc_a;
 			}
 			vino_drvdata->a.int_data.skip = skip_a;
···
 
 		if ((!handled_b) && (done_b || skip_b)) {
 			if (!skip_b) {
-				do_gettimeofday(&vino_drvdata->
-						b.int_data.timestamp);
+				v4l2_get_timestamp(
+					&vino_drvdata->b.int_data.timestamp);
 				vino_drvdata->b.int_data.frame_counter = fc_b;
 			}
 			vino_drvdata->b.int_data.skip = skip_b;

drivers/media/platform/vivi.c

···
 {
 	int wmax = dev->width;
 	int hmax = dev->height;
-	struct timeval ts;
 	void *vbuf = vb2_plane_vaddr(&buf->vb, 0);
 	unsigned ms;
 	char str[100];
···
 	buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
 	dev->field_count++;
 	buf->vb.v4l2_buf.sequence = dev->field_count >> 1;
-	do_gettimeofday(&ts);
-	buf->vb.v4l2_buf.timestamp = ts;
+	v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
 }
 
 static void vivi_thread_tick(struct vivi_dev *dev)
···
 	list_del(&buf->list);
 	spin_unlock_irqrestore(&dev->slock, flags);
 
-	do_gettimeofday(&buf->vb.v4l2_buf.timestamp);
+	v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
 
 	/* Fill buffer */
 	vivi_fillbuff(dev, buf);

drivers/media/usb/au0828/au0828-video.c

···
 
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	dev->isoc_ctl.buf = NULL;
 
···
 
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	dev->isoc_ctl.vbi_buf = NULL;
 

drivers/media/usb/cpia2/cpia2_usb.c

···
 				continue;
 			}
 			DBG("Start of frame pattern found\n");
-			do_gettimeofday(&cam->workbuff->timestamp);
+			v4l2_get_timestamp(&cam->workbuff->timestamp);
 			cam->workbuff->seq = cam->frame_count++;
 			cam->workbuff->data[0] = 0xFF;
 			cam->workbuff->data[1] = 0xD8;

drivers/media/usb/cx231xx/cx231xx-417.c

···
 
 			buf->vb.state = VIDEOBUF_DONE;
 			buf->vb.field_count++;
-			do_gettimeofday(&buf->vb.ts);
+			v4l2_get_timestamp(&buf->vb.ts);
 			list_del(&buf->vb.queue);
 			wake_up(&buf->vb.done);
 			dma_q->mpeg_buffer_completed = 0;
···
 		memcpy(vbuf, data, len);
 		buf->vb.state = VIDEOBUF_DONE;
 		buf->vb.field_count++;
-		do_gettimeofday(&buf->vb.ts);
+		v4l2_get_timestamp(&buf->vb.ts);
 		list_del(&buf->vb.queue);
 		wake_up(&buf->vb.done);
 

drivers/media/usb/cx231xx/cx231xx-vbi.c

···
 
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	dev->vbi_mode.bulk_ctl.buf = NULL;
 

drivers/media/usb/cx231xx/cx231xx-video.c

···
 	cx231xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	if (dev->USE_ISO)
 		dev->video_mode.isoc_ctl.buf = NULL;

drivers/media/usb/em28xx/em28xx-video.c

···
 	em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	dev->isoc_ctl.vid_buf = NULL;
 
···
 
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	dev->isoc_ctl.vbi_buf = NULL;
 

drivers/media/usb/pwc/pwc-if.c

···
 			struct pwc_frame_buf *fbuf = pdev->fill_buf;
 
 			if (pdev->vsync == 1) {
-				do_gettimeofday(&fbuf->vb.v4l2_buf.timestamp);
+				v4l2_get_timestamp(
+					&fbuf->vb.v4l2_buf.timestamp);
 				pdev->vsync = 2;
 			}
 

drivers/media/usb/s2255/s2255drv.c

···
 	buf = list_entry(dma_q->active.next,
 			 struct s2255_buffer, vb.queue);
 	list_del(&buf->vb.queue);
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 	s2255_fillbuff(channel, buf, jpgsize);
 	wake_up(&buf->vb.done);
 	dprintk(2, "%s: [buf/i] [%p/%d]\n", __func__, buf, buf->vb.i);
···
 			   struct s2255_buffer *buf, int jpgsize)
 {
 	int pos = 0;
-	struct timeval ts;
 	const char *tmpbuf;
 	char *vbuf = videobuf_to_vmalloc(&buf->vb);
 	unsigned long last_frame;
···
 	/* tell v4l buffer was filled */
 
 	buf->vb.field_count = channel->frame_count * 2;
-	do_gettimeofday(&ts);
-	buf->vb.ts = ts;
+	v4l2_get_timestamp(&buf->vb.ts);
 	buf->vb.state = VIDEOBUF_DONE;
 }
 

drivers/media/usb/sn9c102/sn9c102_core.c

···
 				       img);
 
 				if ((*f)->buf.bytesused == 0)
-					do_gettimeofday(&(*f)->buf.timestamp);
+					v4l2_get_timestamp(
+						&(*f)->buf.timestamp);
 
 				(*f)->buf.bytesused += img;
 

drivers/media/usb/stk1160/stk1160-video.c

···
 	buf->vb.v4l2_buf.sequence = dev->field_count >> 1;
 	buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
 	buf->vb.v4l2_buf.bytesused = buf->bytesused;
-	do_gettimeofday(&buf->vb.v4l2_buf.timestamp);
+	v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
 
 	vb2_set_plane_payload(&buf->vb, 0, buf->bytesused);
 	vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);

drivers/media/usb/stkwebcam/stk-webcam.c

···
 	sbuf->v4lbuf.flags &= ~V4L2_BUF_FLAG_QUEUED;
 	sbuf->v4lbuf.flags |= V4L2_BUF_FLAG_DONE;
 	sbuf->v4lbuf.sequence = ++dev->sequence;
-	do_gettimeofday(&sbuf->v4lbuf.timestamp);
+	v4l2_get_timestamp(&sbuf->v4lbuf.timestamp);
 
 	*buf = sbuf->v4lbuf;
 	return 0;

drivers/media/usb/tlg2300/pd-video.c

···
 	front->curr_frame	= NULL;
 	vb->state		= VIDEOBUF_DONE;
 	vb->field_count++;
-	do_gettimeofday(&vb->ts);
+	v4l2_get_timestamp(&vb->ts);
 
 	wake_up(&vb->done);
 }

drivers/media/usb/tm6000/tm6000-video.c

···
 	dprintk(dev, V4L2_DEBUG_ISOC, "[%p/%d] wakeup\n", buf, buf->vb.i);
 	buf->vb.state = VIDEOBUF_DONE;
 	buf->vb.field_count++;
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 
 	list_del(&buf->vb.queue);
 	wake_up(&buf->vb.done);

drivers/media/usb/usbvision/usbvision-core.c

···
 
 	if (newstate == parse_state_next_frame) {
 		frame->grabstate = frame_state_done;
-		do_gettimeofday(&(frame->timestamp));
+		v4l2_get_timestamp(&(frame->timestamp));
 		frame->sequence = usbvision->frame_num;
 
 		spin_lock_irqsave(&usbvision->queue_lock, lock_flags);

drivers/media/usb/zr364xx/zr364xx.c

···
 			     int jpgsize)
 {
 	int pos = 0;
-	struct timeval ts;
 	const char *tmpbuf;
 	char *vbuf = videobuf_to_vmalloc(&buf->vb);
 	unsigned long last_frame;
···
 	/* tell v4l buffer was filled */
 
 	buf->vb.field_count = cam->frame_count * 2;
-	do_gettimeofday(&ts);
-	buf->vb.ts = ts;
+	v4l2_get_timestamp(&buf->vb.ts);
 	buf->vb.state = VIDEOBUF_DONE;
 }
 
···
 		goto unlock;
 	}
 	list_del(&buf->vb.queue);
-	do_gettimeofday(&buf->vb.ts);
+	v4l2_get_timestamp(&buf->vb.ts);
 	DBG("[%p/%d] wakeup\n", buf, buf->vb.i);
 	zr364xx_fillbuff(cam, buf, jpgsize);
 	wake_up(&buf->vb.done);