[alsa-devel] [PATCH] ASoC: SPEAr: Add device tree support + SPEAr machine driver

[Lars-Peter Clausen]

On 06/20/2013 01:35 PM, Rajeev Kumar wrote:
> The patch adds device tree support + SPEAr machine driver
> 
> Signed-off-by: Rajeev Kumar <rajeev-dlh.kumar at st.com>
> ---
>  .../devicetree/bindings/sound/spear-evb.txt        |   20 +++
>  sound/soc/spear/spear_evb.c                        |  135 ++++++++++++++++++++
>  2 files changed, 155 insertions(+), 0 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/sound/spear-evb.txt
>  create mode 100644 sound/soc/spear/spear_evb.c
> 
> diff --git a/Documentation/devicetree/bindings/sound/spear-evb.txt b/Documentation/devicetree/bindings/sound/spear-evb.txt
> new file mode 100644
> index 0000000..cb011b4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/spear-evb.txt
> @@ -0,0 +1,20 @@
> +* SPEAr audio sta529 codec
> +
> +Required properties:
> +- compatible: "spear,spear-evb"
> +- audio-controllers: The phandle list of synopsys audio i2s controller
> +- audio-codec: The phandle of the sta529 audio codec
> +- codec_dai_name: DAI name for codec.
> +- stream_name: stream name.
> +
> +Example:
> +
> +sound {
> +        compatible = "spear,spear-evb";
> +        audio-controllers = <&i2s0 &i2s1>;
> +        audio-codecs = <&sta529 &sta529>;
> +        codec_dai_name = "sta529-audio", "sta529-audio";
> +        stream_name = "i2s-play", "i2s-cap";
> +        dai_name = "i2s0-pcm", "i2s1-pcm";
> +};

Kuninori Morimoto was working on generic bindings for the simple-audio
driver a while back. I'm not quite sure what the current status is on this,
but I think it is a better idea to use what he was working on instead of
adding just another set of incompatible platform specific bindings.

See
http://mailman.alsa-project.org/pipermail/alsa-devel/2013-February/059791.html

- Lars