On Mon, Jan 25, 2016 at 05:53:23PM +0000, Felipe F. Tonello wrote:
> This is the initial imx-cs427x device-tree-only machine driver working with
> fsl_ssi driver. More features can be added on top of it later.
>
> Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/sound/imx-audio-cs427x.txt | 47 +++++
> sound/soc/fsl/Kconfig | 12 ++
> sound/soc/fsl/Makefile | 2 +
> sound/soc/fsl/imx-cs427x.c | 218 +++++++++++++++++++++
> 4 files changed, 279 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-cs427x.txt
> create mode 100644 sound/soc/fsl/imx-cs427x.c
>
> diff --git a/Documentation/devicetree/bindings/sound/imx-audio-cs427x.txt b/Documentation/devicetree/bindings/sound/imx-audio-cs427x.txt
> new file mode 100644
> index 000000000000..295f60b19418
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/imx-audio-cs427x.txt
> @@ -0,0 +1,47 @@
> +Freescale i.MX audio complex with CS4271 or CS4272 codec
Do all the i.MX audio bindings really vary more that the codec? Seems
like a lot of duplication.
> +
> +Required properties:
> +
> + - compatible : "fsl,imx-audio-cs427x"
> +
> + - model : The user-visible name of this sound complex
> +
> + - ssi-controller : The phandle of the i.MX SSI controller
> +
> + - audio-codec : The phandle of the CS4271 audio codec
> +
> + - audio-routing : A list of the connections between audio components.
> + Each entry is a pair of strings, the first being the
> + connection's sink, the second being the connection's
> + source. Valid names could be power supplies, CS427x
> + pins, and the jacks on the board:
> +
> + Board connectors:
> + * Mic Jack
> + * Headphone Jack
This should be an exact list of possible strings and valid combinations.
> + - mux-int-port : The internal port of the i.MX audio muxer (AUDMUX)
> +
> + - mux-ext-port : The external port of the i.MX audio muxer
> +
> +Note: The AUDMUX port numbering should start at 1, which is consistent with
> +hardware manual.
> +
> +Example:
> +
> +sound {
> + compatible = "fsl,imx6-rex-cs427x",
> + "fsl,imx-audio-cs427x";
> + model = "audio-cs427x";
> + ssi-controller = <&ssi1>;
> + audio-codec = <&cs4271>;
> + audio-routing =
> + "Mic Jack", "AINA",
> + "Mic Jack", "AINB",
> + "Headphone Jack", "AOUTA+",
> + "Headphone Jack", "AOUTA-",
> + "Headphone Jack", "AOUTB+",
> + "Headphone Jack", "AOUTB-";
> + mux-int-port = <1>;
> + mux-ext-port = <3>;
> +};
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