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[media] use v4l2_get_timestamp where possible

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This is a preparation for a change to the type of v4l2 timestamps.
v4l2_get_timestamp() is a helper function that reads the monotonic
time and stores it into a 'struct timeval'. Multiple drivers implement
the same thing themselves for historic reasons.

Changing them all to use v4l2_get_timestamp() is more consistent
and reduces the amount of code duplication, and most importantly
simplifies the following changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
[hans.verkuil@cisco.com: dropped the v4l2-dev.c patch that didn't belong here]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Arnd Bergmann
2015-09-17 18:19:37 -03:00
committed by Mauro Carvalho Chehab
parent 2ef3b6fe9e
commit 5ba0e2c3ad
8 changed files with 10 additions and 28 deletions
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4
drivers/media/usb/gspca/gspca.c
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@@ -436,7 +436,7 @@ void gspca_frame_add(struct gspca_dev *gspca_dev,
}
j = gspca_dev->fr_queue[i];
frame = &gspca_dev->frame[j];
frame->v4l2_buf.timestamp = ktime_to_timeval(ktime_get());
v4l2_get_timestamp(&frame->v4l2_buf.timestamp);
frame->v4l2_buf.sequence = gspca_dev->sequence++;
gspca_dev->image = frame->data;
gspca_dev->image_len = 0;
@@ -1909,7 +1909,7 @@ static ssize_t dev_read(struct file *file, char __user *data,
}
/* get a frame */
timestamp = ktime_to_timeval(ktime_get());
v4l2_get_timestamp(&timestamp);
timestamp.tv_sec--;
n = 2;
for (;;) {