linux-kernel - Re: [PATCH 00/10 v2] fix gmbus writes and related issues

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Date:	Sat, 24 Mar 2012 20:33:08 +0100
From:	Daniel Vetter <daniel@...ll.ch>
To:	Daniel Kurtz <djkurtz@...omium.org>,
	Keith Packard <keithp@...thp.com>,
	David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Benson Leung <bleung@...omium.org>,
	Yufeng Shen <miletus@...omium.org>,
	Sameer Nanda <snanda@...omium.org>
Subject: Re: [PATCH 00/10 v2] fix gmbus writes and related issues

On Sun, Mar 18, 2012 at 07:22:05PM +0100, Daniel Vetter wrote:
> On Sat, Mar 10, 2012 at 02:48:14AM +0800, Daniel Kurtz wrote:
> > This patchset addresses a couple of issues with the i915 gmbus implementation:
> >  * fixes misassigned pin port pair for HDMI-D
> >  * fixes write transactions when they are the only transaction requested
> >    (including large >4-byte writes) by terminating every transaction with a
> >    WAIT cycle.
> >  * returns -ENXIO and -ETIMEDOUT as appropriate so upper layers can handled
> >    i2c transaction failures
> >  * optimizes the typical read transaction case by using the INDEX cycle
> >  * turns on the GMBUS interrupt whenever possible to dramatically improve
> >    throughput by eliminating the very slow polling loop.
> > 
> > The patchset should apply cleanly onto linus/master.
> > It is inspired by, but completely supercedes, a similar patch submitted
> > recently by Benson Leung (bleung@...omium.org).
> > I'd be happy to rebase on a different tree if necessary.
> > 
> > v2 of the patchset address review comments from Chris Wilson (thanks for the
> > review, Chris!), and adds the interrupt patch.  There weren't any review
> > comments for patches 5, 7, or 8 of the first set.  Hopefully they will get
> > more love the second time around :).
> 
> Oops, still catching up - I've commented on the first thread. Please
> resubmit on top of drm-intel-next-queued and I'll have a look. Also,
> please cc me so I don't miss them.

I've pushed aout a few more changes to intel_i2c.c in my
drm-intel-next-queued branch. Generally I like these patches, so please
rebase and resubmit.

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel@...ll.ch
Mobile: +41 (0)79 365 57 48
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