From 227da85e775065c81e222f443e8379aba4d3f668 Mon Sep 17 00:00:00 2001 From: Prashant Laddha Date: Fri, 12 Jun 2015 08:48:10 -0300 Subject: [PATCH] [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 Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/v4l2-core/v4l2-dv-timings.c | 9 ++++++--- 1 file 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; -- 2.34.1