linux-kernel - Re: [PATCH 1/7] dt-bindings: i2c: add support for 'i2c-mux' subnode

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Date:	Fri, 29 Jul 2016 16:17:32 -0500
From:	Rob Herring <robh@...nel.org>
To:	Peter Rosin <peda@...ntia.se>
Cc:	linux-kernel@...r.kernel.org, Wolfram Sang <wsa@...-dreams.de>,
	Mark Rutland <mark.rutland@....com>,
	Guenter Roeck <linux@...ck-us.net>,
	"David S. Miller" <davem@...emloft.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Kalle Valo <kvalo@...eaurora.org>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Emil Velikov <emil.l.velikov@...il.com>,
	linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
	Crestez Dan Leonard <leonard.crestez@...el.com>
Subject: Re: [PATCH 1/7] dt-bindings: i2c: add support for 'i2c-mux' subnode

On Wed, Jul 27, 2016 at 10:43:24AM +0200, Peter Rosin wrote:
> Similar to the new optional 'i2c-bus' subnode from Jon Hunter, this
> adds an optional 'i2c-mux' subnode, for similar reasons. I.e. it is
> bad of the i2c mux core to assume that any subnode of an i2c mux device
> is a potential (when the 'reg' property matches) i2c-mux child bus,
> given that i2c mux devices might do more than mux i2c traffic.
> 
> So, if an 'i2c-mux' subnode is present, dictate that all i2c-mux child
> buses exist beneath that subnode.
> 
> Signed-off-by: Peter Rosin <peda@...ntia.se>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-mux.txt | 23 ++++++++++++++++++-----
>  1 file changed, 18 insertions(+), 5 deletions(-)

Acked-by: Rob Herring <robh@...nel.org>