From: Egbert Eich <eich@suse.de>
Date: Tue, 4 Jun 2013 15:13:21 +0000 (+0200)
Subject: drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.
X-Git-Tag: v3.2.47~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=94dbc341c33589c6cb3c2e60414250c9e1535968;p=pandora-kernel.git

drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.

commit 53d3b4d7778daf15900867336c85d3f8dd70600c upstream.

In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used
for DDC. Thus the code will always have to rely on a LVDS panel
mode supplied by VBT.
In most cases this succeeds, so this didn't get detected for quite
a while.

This regression seems to have been introduced in

commit f899fc64cda8569d0529452aafc0da31c042df2e
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Jul 20 15:44:45 2010 -0700

    drm/i915: use GMBUS to manage i2c links

Signed-off-by: Egbert Eich <eich@suse.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[danvet: Add note about which commit likely introduced this issue.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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