tree 1503bbee0b49118ea47d3fbb9573c5fdffaf32cf
parent c4867936474183332db4c19791a65fdad6474fd5
author Daniel Vetter <daniel.vetter@ffwll.ch> 1333998638 +0200
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1334139083 +0200

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>