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authorMartin Bugge <marbugge@cisco.com>2014-01-23 13:40:00 +0400
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-02-04 12:45:47 +0400
commit257cc4b5c57060a65e9c805fb1c225688ebbca80 (patch)
tree524f3a8eb48bd3cac14290c83141b1f4efebc445 /drivers
parent1ba6c90161ac058f580e6ceb5ccc14dcd86365d1 (diff)
downloadlinux-257cc4b5c57060a65e9c805fb1c225688ebbca80.tar.xz
[media] v4l2-dv-timings: fix GTF calculation
Round off image width to nearest 8 (GTF_CELL_GRAN) A source sending a GTF (Generalized Timing Formula) format have no means of signalling image width. The assumed aspect ratio may result in an odd image width but according to the standard image width should be in multiple of 8. Cc: Mats Randgaard <matrandg@cisco.com> Signed-off-by: Martin Bugge <marbugge@cisco.com> Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/v4l2-core/v4l2-dv-timings.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index ee52b9f4a944..f7902fe8a526 100644
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -515,6 +515,7 @@ bool v4l2_detect_gtf(unsigned frame_height,
aspect.denominator = 9;
}
image_width = ((image_height * aspect.numerator) / aspect.denominator);
+ image_width = (image_width + GTF_CELL_GRAN/2) & ~(GTF_CELL_GRAN - 1);
/* Horizontal */
if (default_gtf)