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From:   Arnd Bergmann <arnd@arndb.de>
Date:   Wed, 11 Jul 2018 16:10:10 +0200
Message-ID: <CAK8P3a1gyvvpKdVV+STOJXd-=BFdiFF638F0agXur0kLYP7ksw@mail.gmail.com>
Subject: Re: [PATCH v5 04/10] dt-bindings: i3c: Document core bindings
To:     Boris Brezillon <boris.brezillon@bootlin.com>
Cc:     Wolfram Sang <wsa@the-dreams.de>, linux-i2c@vger.kernel.org,
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On Fri, Jun 22, 2018 at 12:49 PM, Boris Brezillon
<boris.brezillon@bootlin.com> wrote:
> A new I3C subsystem has been added and a generic description has been
> created to represent the I3C bus and the devices connected on it.
>

> +I2C devices
> +===========
> +
> +Each I2C device connected to the bus should be described in a subnode. All
> +properties described in Documentation/devicetree/bindings/i2c/i2c.txt are
> +valid here, but several new properties have been added.
> +
> +New constraint on existing properties:
> +--------------------------------------
...
> +  + third cell: should be 0

What for? Just to be future-proof, or do you have something specific
in mind here?

      Arnd