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authorPrashant Laddha <prladdha@cisco.com>2015-06-12 08:48:10 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-07-06 08:25:53 -0300
commit227da85e775065c81e222f443e8379aba4d3f668 (patch)
tree99f9cc1ac3172d8c3aef852e92097decd6683c8f
parent4366dfef377034e97d5b35677b7a1ebb1f1ce6dc (diff)
[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>
-rw-r--r--drivers/media/v4l2-core/v4l2-dv-timings.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index 2c7b9fdfa0af..6a83d6191684 100644
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -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;