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From: Joel Stanley <joel@jms.id.au>
To: Brendan Higgins <brendanhiggins@google.com>
Cc: Rob Herring <robh@kernel.org>, Wolfram Sang <wsa@the-dreams.de>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-i2c@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	OpenBMC Maillist <openbmc@lists.ozlabs.org>,
	Jeremy Kerr <jk@ozlabs.org>
Subject: Re: [PATCH v2 2/2] i2c: aspeed: added documentation for Aspeed I2C driver
Date: Fri, 23 Sep 2016 15:32:03 +0930	[thread overview]
Message-ID: <CACPK8XcWbgfW_==aVjUataA2Yk26TSaO2o3Vt0pR68qKpkYxuA@mail.gmail.com> (raw)
In-Reply-To: <CAFd5g46j02sb2w_DwaXAgnfcO=ONmJGZwqdRneNd0QHq-t53rA@mail.gmail.com>

Hi Brendan,

On Wed, Sep 21, 2016 at 3:35 AM, Brendan Higgins
<brendanhiggins@google.com> wrote:
> First off, someone pointed out to me that the mapping that I used between
> addresses and bus numbers is not actually valid for busses 8-14.
>
> This could be fixed by checking the offset, but I am wondering if that is
> the right way to do it. It seems like this is not completely trivial so
> maybe this should be specified in the device tree? If that is the case,
> should I do this as another reg entry or go back to the way I was doing it
> before?

I don't see an alternative way to derive these numbers. As you
mention, the block of SRAM in the middle of the IP screwing up the
linear mapping.

I suggest going back to what you have in v2, with a mention in the
commit message as to why the bus property is necessary.

Cheers,

Joel

  parent reply	other threads:[~2016-09-23  6:02 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-09 19:54 [PATCH 0/2] i2c: aspeed: added driver for Aspeed I2C Brendan Higgins
2016-09-09 19:54 ` [PATCH 1/2] " Brendan Higgins
2016-09-09 22:48   ` kbuild test robot
2016-09-10  0:48   ` kbuild test robot
2016-09-10  1:55     ` [PATCH v2 " Brendan Higgins
2016-09-10  1:55       ` [PATCH v2 2/2] i2c: aspeed: added documentation for Aspeed I2C driver Brendan Higgins
2016-09-19 21:35         ` Rob Herring
2016-09-19 23:26           ` Brendan Higgins
2016-09-20 18:08             ` Brendan Higgins
2016-09-20 23:03               ` Brendan Higgins
     [not found]             ` <CAFd5g46j02sb2w_DwaXAgnfcO=ONmJGZwqdRneNd0QHq-t53rA@mail.gmail.com>
2016-09-23  6:02               ` Joel Stanley [this message]
2016-09-19 17:56       ` [PATCH v2 1/2] i2c: aspeed: added driver for Aspeed I2C Brendan Higgins
2016-09-19 23:23         ` [PATCH v3 " Brendan Higgins
2016-09-19 23:23           ` [PATCH v3 2/2] i2c: aspeed: added documentation for Aspeed I2C driver Brendan Higgins
2016-09-23 18:02             ` Rob Herring
2016-10-12 20:01               ` Brendan Higgins
2016-09-09 19:54 ` [PATCH " Brendan Higgins

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