linux-kernel - Re: [PATCH 1/3] ARM: at91: Add Special Function Registers binding documentation

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Date:	Thu, 13 Nov 2014 10:48:03 +0100
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc:	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH 1/3] ARM: at91: Add Special Function Registers binding
 documentation

On Mon, 10 Nov 2014 16:14:29 +0100
Alexandre Belloni <alexandre.belloni@...e-electrons.com> wrote:

> The special function registers gather some registers that allow to tweak
> features provided by IPs controlled through another register range.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-electrons.com>

Once you've fixed your dtsi you can add my

Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>

on the whole series.

> ---
>  Documentation/devicetree/bindings/arm/atmel-at91.txt | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
> index 562cda9d86d9..a6427de45785 100644
> --- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
> +++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
> @@ -136,3 +136,20 @@ Example:
>  		compatible = "atmel,at91sam9260-rstc";
>  		reg = <0xfffffd00 0x10>;
>  	};
> +
> +Special Function Registers (SFR)
> +
> +Special Function Registers (SFR) manage specific aspects of the integrated
> +memory, bridge implementations, processor and other functionality not controlled
> +elsewhere.
> +
> +required properties:
> +- compatible: Should be "atmel,<chip>-sfr", "syscon".
> +  <chip> can be "at91sam9260", "at91sam9rl" or "at91sam9x5".
> +- reg: Should contain registers location and length
> +
> +	sfr@...38000 {
> +		compatible = "atmel,sama5d3-sfr", "syscon";
> +		reg = <0xf0038000 0x4000>;
> +	};
> +



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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