linux-kernel - Re: [PATCH v3 2/2] Binding: atmel-ssc: add option to choose clock

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Date:	Mon, 10 Feb 2014 10:21:39 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Bo Shen <voice.shen@...el.com>, <broonie@...nel.org>
CC:	<plagnioj@...osoft.com>, <linux-sound@...r.kernel.org>,
	<alsa-devel@...a-project.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	"Rob Herring" <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
	Rob Landley <rob@...dley.net>,
	"Mark Brown" <broonie@...aro.org>,
	Richard Genoud <richard.genoud@...il.com>,
	<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/2] Binding: atmel-ssc: add option to choose clock

On 10/02/2014 07:09, Bo Shen :
> Add the option to choose clock on which pin input to SSC (as slave).
> Default is on TK pin to SSC, add "atmel,clk-from-rk-pin" option to
> specify the clock is on RK pin to SSC.
> 
> Signed-off-by: Bo Shen <voice.shen@...el.com>

Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>

> ---
> Changes in v3:
>   - None
> Series-changes: 2
>   - using "-" replace "_" in binding document
> 
>  Documentation/devicetree/bindings/misc/atmel-ssc.txt | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/misc/atmel-ssc.txt b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> index a45ae08..5c1e14e 100644
> --- a/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> +++ b/Documentation/devicetree/bindings/misc/atmel-ssc.txt
> @@ -14,6 +14,14 @@ Required properties for devices compatible with "atmel,at91sam9g45-ssc":
>    See Documentation/devicetree/bindings/dma/atmel-dma.txt for details.
>  - dma-names: Must be "tx", "rx".
>  
> +Optional properties:
> +  - atmel,clk-from-rk-pin: bool property.
> +     - When SSC works in slave mode, according to the hardware design, the
> +       clock can get from TK pin, and also can get from RK pin. So, add
> +       this parameter to choose where the clock from.
> +     - By default the clock is from TK pin, if the clock from RK pin, this
> +       property is needed.
> +
>  Examples:
>  - PDC transfer:
>  ssc0: ssc@...bc000 {
> 


-- 
Nicolas Ferre
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