media: usbvision: use u64 for the timestamp internally
Just like vb2 does, use u64 internally to store the timestamps
of the buffers. Only convert to timeval when interfacing with
userspace.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/drivers/media/usb/usbvision/usbvision-core.c b/drivers/media/usb/usbvision/usbvision-core.c
index 31e0e98..2b843a7 100644
--- a/drivers/media/usb/usbvision/usbvision-core.c
+++ b/drivers/media/usb/usbvision/usbvision-core.c
@@ -1160,7 +1160,7 @@
if (newstate == parse_state_next_frame) {
frame->grabstate = frame_state_done;
- v4l2_get_timestamp(&(frame->timestamp));
+ frame->ts = ktime_get_ns();
frame->sequence = usbvision->frame_num;
spin_lock_irqsave(&usbvision->queue_lock, lock_flags);
diff --git a/drivers/media/usb/usbvision/usbvision-video.c b/drivers/media/usb/usbvision/usbvision-video.c
index dd2ff8ed6..e611052 100644
--- a/drivers/media/usb/usbvision/usbvision-video.c
+++ b/drivers/media/usb/usbvision/usbvision-video.c
@@ -706,7 +706,7 @@
vb->length = usbvision->curwidth *
usbvision->curheight *
usbvision->palette.bytes_per_pixel;
- vb->timestamp = usbvision->frame[vb->index].timestamp;
+ vb->timestamp = ns_to_timeval(usbvision->frame[vb->index].ts);
vb->sequence = usbvision->frame[vb->index].sequence;
return 0;
}
@@ -775,7 +775,7 @@
V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
vb->index = f->index;
vb->sequence = f->sequence;
- vb->timestamp = f->timestamp;
+ vb->timestamp = ns_to_timeval(f->ts);
vb->field = V4L2_FIELD_NONE;
vb->bytesused = f->scanlength;
diff --git a/drivers/media/usb/usbvision/usbvision.h b/drivers/media/usb/usbvision/usbvision.h
index 017e7ba..d55088b 100644
--- a/drivers/media/usb/usbvision/usbvision.h
+++ b/drivers/media/usb/usbvision/usbvision.h
@@ -316,7 +316,7 @@
long bytes_read; /* amount of scanlength that has been read from data */
struct usbvision_v4l2_format_st v4l2_format; /* format the user needs*/
int v4l2_linesize; /* bytes for one videoline*/
- struct timeval timestamp;
+ u64 ts;
int sequence; /* How many video frames we send to user */
};
