From: Torsten Duwe <torsten@lst.de>
Date: Sat, 23 Mar 2013 14:38:22 +0000 (+0100)
Subject: KMS: fix EDID detailed timing vsync parsing
X-Git-Tag: v3.2.42~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b5ee14aafbdee09fc04d1a66162378f65652651;p=pandora-kernel.git

KMS: fix EDID detailed timing vsync parsing

commit 16dad1d743d31a104a849c8944e6b9eb479f6cd7 upstream.

EDID spreads some values across multiple bytes; bit-fiddling is needed
to retrieve these.  The current code to parse "detailed timings" has a
cut&paste error that results in a vsync offset of at most 15 lines
instead of 63.

See

   http://en.wikipedia.org/wiki/EDID

and in the "EDID Detailed Timing Descriptor" see bytes 10+11 show why
that needs to be a left shift.

Signed-off-by: Torsten Duwe <duwe@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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