linux-kernel - Re: [PATCH v5 21/23] ASoC: qdsp6: dt-bindings: Add apq8096 machine bindings

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Message-ID: <20180424162517.msxscjfg36xc22mo@rob-hp-laptop>
Date:   Tue, 24 Apr 2018 11:25:17 -0500
From:   Rob Herring <robh@...nel.org>
To:     srinivas.kandagatla@...aro.org
Cc:     andy.gross@...aro.org, broonie@...nel.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        gregkh@...uxfoundation.org, david.brown@...aro.org,
        mark.rutland@....com, lgirdwood@...il.com, plai@...eaurora.org,
        bgoswami@...eaurora.org, tiwai@...e.com, perex@...ex.cz,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, rohkumar@....qualcomm.com,
        spatakok@....qualcomm.com
Subject: Re: [PATCH v5 21/23] ASoC: qdsp6: dt-bindings: Add apq8096 machine
 bindings

On Wed, Apr 18, 2018 at 04:31:55PM +0100, srinivas.kandagatla@...aro.org wrote:
> From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> 
> Add devicetree bindings documentation file for Qualcomm apq8096 sound card.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  .../devicetree/bindings/sound/qcom,apq8096.txt     | 76 ++++++++++++++++++++++
>  1 file changed, 76 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/qcom,apq8096.txt
> 
> diff --git a/Documentation/devicetree/bindings/sound/qcom,apq8096.txt b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt
> new file mode 100644
> index 000000000000..37e23d926b95
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt
> @@ -0,0 +1,76 @@
> +* Qualcomm Technologies APQ8096 ASoC sound card driver
> +
> +This binding describes the APQ8096 sound card, which uses qdsp for audio.
> +
> +- compatible:
> +	Usage: required
> +	Value type: <stringlist>
> +	Definition: must be "qcom,apq8096-sndcard"
> +
> +- qcom,audio-routing:
> +	Usage: Optional
> +	Value type: <stringlist>
> +	Definition:  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, MicBias
> +		  of codec and the jacks on the board:

Please list out valid values here.

> +
> += dailinks
> +Each subnode of sndcard represents either a dailink, and subnodes of each
> +dailinks would be cpu/codec/platform dais.
> +
> +- link-name:

Not a standard property, but I guess that sneaked in with the 8016 
binding...

> +	Usage: required
> +	Value type: <string>
> +	Definition: User friendly name for dai link
> +
> += CPU, PLATFORM, CODEC dais subnodes
> +- cpu:
> +	Usage: required
> +	Value type: <subnode>
> +	Definition: cpu dai sub-node
> +
> +- codec:
> +	Usage: Optional
> +	Value type: <subnode>
> +	Definition: codec dai sub-node
> +
> +- platform:
> +	Usage: Optional
> +	Value type: <subnode>
> +	Definition: platform dai sub-node
> +
> +- sound-dai:
> +	Usage: required
> +	Value type: <phandle>

phandle with args.

> +	Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
> +
> +Example:
> +
> +audio {
> +	compatible = "qcom,apq8096-sndcard";
> +	qcom,model = "DB820c";
> +
> +	mm1-dai-link {
> +		link-name = "MultiMedia1";
> +		cpu {
> +			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
> +		};
> +	};
> +
> +	hdmi-dai-link {
> +		link-name = "HDMI Playback";
> +		cpu {
> +			sound-dai = <&q6afe HDMI_RX>;
> +		};
> +
> +		platform {
> +			sound-dai = <&q6adm>;
> +		};
> +
> +		codec {
> +			sound-dai = <&hdmi 0>;
> +		};
> +	};
> +};
> -- 
> 2.16.2
>