linux-kernel - Re: [PATCH 1/2] i2c-core: Add gpio based bus arbitration implementation

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Message-ID: <20121219171423.GW4985@opensource.wolfsonmicro.com>
Date:	Wed, 19 Dec 2012 17:14:23 +0000
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Naveen Krishna Chatradhi <ch.naveen@...sung.com>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org, w.sang@...gutronix.de,
	khali@...ux-fr.org, ben-linux@...ff.org,
	devicetree-discuss@...ts.ozlabs.org, sjg@...omium.org,
	grundler@...omium.org, naveen@...omium.org
Subject: Re: [PATCH 1/2] i2c-core: Add gpio based bus arbitration
 implementation

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.

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