From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 9 Apr 2012 19:10:38 +0000 (+0200)
Subject: Revert "drm/i915: reenable gmbus on gen3+ again"
X-Git-Tag: v3.4-rc3~33^2~1^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6a562e3daee217ce99fe0e31150acd89a5b22606;p=pandora-kernel.git

Revert "drm/i915: reenable gmbus on gen3+ again"

This reverts commit c3dfefa0a6d235bd465309e12f4c56ea16e71111.

gmbus in 3.4 has simply too many known issues:
- gmbus is too noisy, we need to rework the logging:
  https://bugs.freedesktop.org/show_bug.cgi?id=48248
- zero-length writes cause an OOPS, and they are
  userspace-triggerable:
  https://lkml.org/lkml/2012/3/30/176
- same for zero-length reads:
  https://bugs.freedesktop.org/show_bug.cgi?id=48269

We can try again for 3.5.

Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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