linux-kernel - Re: [PATCH v3 1/2] dt-bindings: add sun4i SPDIF transceiver bindings

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Message-ID: <20160202223115.GE4652@lukather>
Date:	Tue, 2 Feb 2016 23:31:15 +0100
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	codekipper@...il.com
Cc:	linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
	lgirdwood@...il.com, broonie@...nel.org,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	be17068@...rbole.bo.it
Subject: Re: [PATCH v3 1/2] dt-bindings: add sun4i SPDIF transceiver bindings

Hi,

On Tue, Feb 02, 2016 at 03:49:53PM +0100, codekipper@...il.com wrote:
> From: Marcus Cooper <codekipper@...il.com>
> 
> Add devicetree bindings for the SPDIF transceiver found on
> found on Allwinners A10 and A20 SoCs.
> 
> Signed-off-by: Marcus Cooper <codekipper@...il.com>
> ---
>  .../devicetree/bindings/sound/sun4i,spdif.txt      | 46 ++++++++++++++++++++++
>  1 file changed, 46 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/sun4i,spdif.txt
> 
> diff --git a/Documentation/devicetree/bindings/sound/sun4i,spdif.txt b/Documentation/devicetree/bindings/sound/sun4i,spdif.txt
> new file mode 100644
> index 0000000..55ed2f6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/sun4i,spdif.txt
> @@ -0,0 +1,46 @@
> +Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller
> +
> +The Allwinner S/PDIF audio block is a transceiver that allows the
> +processor to receive and transmit digital audio via an coaxial cable or
> +a fibre cable.
> +
> +Required properties:
> +
> +  - compatible		: should be one of the following:
> +    - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC
> +
> +  - reg			: Offset and length of the register set for the device.
> +
> +  - interrupts		: Contains the spdif interrupt.
> +
> +  - dmas		: Generic dma devicetree binding as described in
> +			  Documentation/devicetree/bindings/dma/dma.txt.
> +
> +  - dma-names		: Two dmas have to be defined, "tx" and "rx".
> +
> +  - clocks		: Contains an entry for each entry in clock-names.
> +
> +  - clock-names		: Includes the following entries:
> +	"apb"		  clock for the spdif bus.
> +	"spdif"		  clock for spdif controller.
> +
> +Optional:
> +
> +  - spdif-in		: Enable block for capturing an SPDIF signal.
> +
> +  - spdif-out		: Enable block for transmitting an SPDIF signal.

Is that a generic property? What values can it hold?

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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