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[media] v4l2-dv-timings: print refresh rate with better precision 

In many cases, refresh rate is not exact integer. In such cases,
fraction was lost and it used to print, say, 59 in case of 59.94.
Now, capturing the fraction up to 2 decimal places.

Signed-off-by: Prashant Laddha <prladdha@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Prashant Laddha 2015-06-12 08:48:10 -03:00 committed by Mauro Carvalho Chehab
parent 4366dfef37
commit 227da85e77
1 changed files with 6 additions and 3 deletions
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9
drivers/media/v4l2-core/v4l2-dv-timings.c
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@ -256,6 +256,7 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
{
const struct v4l2_bt_timings *bt = &t->bt;
u32 htot, vtot;
u32 fps;
if (t->type != V4L2_DV_BT_656_1120)
return;
@ -265,13 +266,15 @@ void v4l2_print_dv_timings(const char *dev_prefix, const char *prefix,
if (bt->interlaced)
vtot /= 2;
fps = (htot * vtot) > 0 ? div_u64((100 * (u64)bt->pixelclock),
(htot * vtot)) : 0;
if (prefix == NULL)
prefix = "";
pr_info("%s: %s%ux%u%s%u (%ux%u)\n", dev_prefix, prefix,
pr_info("%s: %s%ux%u%s%u.%u (%ux%u)\n", dev_prefix, prefix,
bt->width, bt->height, bt->interlaced ? "i" : "p",
(htot * vtot) > 0 ? ((u32)bt->pixelclock / (htot * vtot)) : 0,
htot, vtot);
fps / 100, fps % 100, htot, vtot);
if (!detailed)
return;