From: Daniel Kurtz <djkurtz@chromium.org>
Date: Tue, 27 Mar 2012 18:36:15 +0000 (+0800)
Subject: drm/i915/intel_i2c: gmbus disabled and reserved ports are invalid
X-Git-Tag: v3.5-rc1~83^2~140^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ed06c93a1fce057808894d73167aae03c76deaf;p=pandora-kernel.git

drm/i915/intel_i2c: gmbus disabled and reserved ports are invalid

There is no GMBUS "disabled" port 0, nor "reserved" port 7.
For the other 6 ports there is a fixed 1:1 mapping between pin pairs and
gmbus ports, which means every real gmbus port has a gpio pin.

Given these realizations, clean up gmbus initialization.

Tested on Sandybridge (gen 6, PCH == CougarPoint) hardware.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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