linux-kernel - Re: [PATCH 2/7] dt-bindings: i2c: add support for 'i2c-arb' subnode

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Date:	Fri, 29 Jul 2016 16:24:52 -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 2/7] dt-bindings: i2c: add support for 'i2c-arb' subnode

On Wed, Jul 27, 2016 at 10:43:25AM +0200, Peter Rosin wrote:
> This gets rid of the need for a pointless 'reg' property for i2c
> arbitrators.
> 
> I.e. this new and more compact style
> 
> 	some-arbitrator {
> 		i2c-mux {

You mean i2c-arb here?

> 			#address-cells = <1>;
> 			#size-cells = <0>;
> 
> 			some-i2c-device@50 {
> 				reg = <0x50>;
> 			};
> 		};
> 	};
> 
> instead of the old
> 
> 	some-arbitrator {
> 		#address-cells = <1>;
> 		#size-cells = <0>;
> 
> 		i2c@0 {
> 			reg = <0>;
> 
> 			#address-cells = <1>;
> 			#size-cells = <0>;
> 
> 			some-i2c-device@50 {
> 				reg = <0x50>;
> 			};
> 		};
> 	};
> 
> Signed-off-by: Peter Rosin <peda@...ntia.se>
> ---
>  .../bindings/i2c/i2c-arb-gpio-challenge.txt        |  8 ++---
>  Documentation/devicetree/bindings/i2c/i2c-arb.txt  | 35 ++++++++++++++++++++++
>  MAINTAINERS                                        |  1 +
>  3 files changed, 38 insertions(+), 6 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/i2c/i2c-arb.txt

Otherwise,

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