linux-kernel - Re: [PATCH 2/2] pinctrl: add generic pins and functions properties

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Message-ID: <20130806084131.GB23111@e106331-lin.cambridge.arm.com>
Date:	Tue, 6 Aug 2013 09:41:31 +0100
From:	Mark Rutland <mark.rutland@....com>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Pawel Moll <Pawel.Moll@....com>,
	"rob.herring@...xeda.com" <rob.herring@...xeda.com>,
	Ian Campbell <ian.campbell@...rix.com>,
	Laxman Dewangan <ldewangan@...dia.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Warren <swarren@...dia.com>
Subject: Re: [PATCH 2/2] pinctrl: add generic pins and functions properties

On Mon, Aug 05, 2013 at 10:56:00PM +0100, Stephen Warren wrote:
> From: Stephen Warren <swarren@...dia.com>
> 
> pinctrl bindings can benefit from generic property names that define
> which pins a "pin configuration node" affects, and which mux function
> to select onto those pins. Document new properties for this purpose so
> that other bindings may refer to them.
> 
> Signed-off-by: Stephen Warren <swarren@...dia.com>
> ---
>  Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
> index 31b0cb9..237823a 100644
> --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
> +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
> @@ -138,6 +138,9 @@ structure of the DT nodes that contain these properties.
>  
>  Supported generic properties are:
>  
> +pins			- the list of pins that properties in the node
> +			  apply to
> +function		- the mux function to select

I assume the type of these properties must be described in the more
specific binding?

Mark.

>  bias-disable		- disable any pin bias
>  bias-high-impedance	- high impedance mode ("third-state", "floating")
>  bias-bus-hold		- latch weakly
> -- 
> 1.8.1.5
> 
> 
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