From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 02 Nov 2011 23:17:00 +0000
Subject: Re: [PATCH 3/3] ARM: mach-shmobile: sh7372 A4R support (v4)
Message-Id: <201111030017.00780.rjw@sisk.pl>
List-Id: <linux-sh.vger.kernel.org>
References: <201110200012.43840.rjw@sisk.pl> <Pine.LNX.4.64.1111021132240.19054@axis700.grange> <CANqRtoS5KTws7rDoHkxrq8DP+js5xq=YF3zQG4MYmmjHEtv5NA@mail.gmail.com>
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To: Magnus Damm <magnus.damm@gmail.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>, Linux-sh list <linux-sh@vger.kernel.org>, Linux PM list <linux-pm@vger.kernel.org>, Linux Kernel <linux-kernel@vger.kernel.org>

On Wednesday, November 02, 2011, Magnus Damm wrote:
> On Wed, Nov 2, 2011 at 11:38 AM, Guennadi Liakhovetski
> <g.liakhovetski@gmx.de> wrote:
> > On Thu, 20 Oct 2011, Rafael J. Wysocki wrote:
> >
> >> From: Magnus Damm <damm@opensource.se>
> >>
> >> This change adds support for the sh7372 A4R power domain.
> >
> > This version still breaks I2C (#0) on mackerel. Tested with your
> > sh7372-test branch of Oct 18th plus these four patches:
> >
> > 6b29305a PM / Domains: Add default power off governor function (v2)
> > 3d578ae PM / Domains: Add device stop governor function (v2)
> > 6c2cd02 ARM: mach-shmobile: sh7372 A4R support (v4)
> > 9da11f4 ARM: mach-shmobile: sh7372 A3SP support (v4)
> 
> Exactly how does it break IIC0?

It causes some initialization issues to happen.  I get the following
messages on every boot:

i2c-sh_mobile i2c-sh_mobile.0: Transfer request timed out
i2c-sh_mobile i2c-sh_mobile.0: Polling timed out

three times in a row (there's a delay too).

The A4R patch is the source of that.

> Does the same happen with the code base for upcoming 3.2-rc1 from
> latest linux git?

Yes, it does, AFAICT.

Thanks,
Rafael