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Date:	Thu, 20 Dec 2012 00:53:43 +0000
From:	Grant Likely <>
To:	Mark Brown <>
Cc:	Naveen Krishna Chatradhi <>,
	Linux I2C <>,
	Linux Kernel Mailing List <>,,
	Wolfram Sang <>,
	Jean Delvare <>,
	Ben Dooks <>,
	devicetree-discuss <>,
	Simon Glass <>,,
Subject: Re: [PATCH 1/2] i2c-core: Add gpio based bus arbitration implementation

On Wed, Dec 19, 2012 at 5:14 PM, Mark Brown
<> wrote:
> On Wed, Dec 19, 2012 at 12:32:01PM +0000, Grant Likely wrote:
>> I'm not convinced on the design of this protocol. It won't scale beyond
>> 2 bus masters and it seems very specific to the design of a specific
>> piece of hardware. I don't think it is mature enough to bake into the
> I ought to point out that the original patch would've baked this into
> the Samsung I2C driver but I asked for it to be split out as it's
> nothing to do with the controller really and I'm sure I've seen it
> before.

Indeed, baking it into the driver is also the wrong abstraction.


Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
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