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media: cobalt: Use v4l2_calc_timeperframe helper

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Currently, cobalt driver always returns 60fps in g_parm.
This patch uses the new v4l2_calc_timeperframe helper to
calculate the time per frame value.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Jose Abreu 2017-03-21 07:49:18 -04:00 committed by Mauro Carvalho Chehab
parent 87f9ed85d0
commit 3ae17c66ed
1 changed files with 7 additions and 2 deletions
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9
drivers/media/pci/cobalt/cobalt-v4l2.c
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@ -1064,10 +1064,15 @@ static int cobalt_subscribe_event(struct v4l2_fh *fh,
static int cobalt_g_parm(struct file *file, void *fh, struct v4l2_streamparm *a)
{
struct cobalt_stream *s = video_drvdata(file);
struct v4l2_fract fps;
if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
a->parm.capture.timeperframe.numerator = 1;
a->parm.capture.timeperframe.denominator = 60;
fps = v4l2_calc_timeperframe(&s->timings);
a->parm.capture.timeperframe.numerator = fps.numerator;
a->parm.capture.timeperframe.denominator = fps.denominator;
a->parm.capture.readbuffers = 3;
return 0;
}