[PATCH] drm/i915: Fix single msg gmbus_xfers writes

[Chris Wilson]

On Mon, 13 Feb 2012 23:26:23 +0100, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Mon, Feb 13, 2012 at 09:49:35PM +0000, Chris Wilson wrote:
> > On Mon, 13 Feb 2012 21:38:38 +0100, Daniel Vetter <daniel at ffwll.ch> wrote:
> > However, the outstanding issue is that we need to separate the gmbus
> > i2c adapter from the gpio i2c adapter in order for the pairing to work
> > with the expectations of the i2c core.
> 
> There's another patch floating on dri-devel to add a gmbus_mutex. The
> issue it tries to avoid is that multiple users corrupting each anothers
> state when using the single gmbus controller. See "[PATCH] [PATCH]
> drm/i915: Fix race condition in accessing GMBUS". Or have you thought of
> another interaction that we need to sort out?

The GMBUS interface is currently disabled because we confused the i2c
core.
  https://bugzilla.kernel.org/show_bug.cgi?id=35572
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre