From: Martin Bugge <marbugge@cisco.com>
Date: Wed, 14 Aug 2013 07:58:38 +0000 (-0300)
Subject: [media] v4l2-dv-timings: fix CVT calculation
X-Git-Tag: v3.12-rc1~135^2~66
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c3e75c7d5e203b6d1d16519bef8571b5d228b7fe;p=pandora-kernel.git

[media] v4l2-dv-timings: fix CVT calculation

This patch fixes two errors that caused incorrect format detections:
The first bug is in the calculation of the vertical backporch: the combined
period of vsync and backporch must *exceed* a certain minimum value, and not
be equal to it.
The second bug is a rounding error in the reduced blanking calculation:
expand the ideal_duty_cylce to be in parts per ten thousand to avoid
rounding errors.

Signed-off-by: Martin Bugge <marbugge@cisco.com>
Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---

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