On Thu, Jun 21, 2018 at 04:23:18PM +0530, Rohit kumar wrote:
> Add devicetree bindings documentation file for SDM845 sound card.
>
> Signed-off-by: Rohit kumar <rohitkr@xxxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/sound/qcom,sdm845.txt | 82 ++++++++++++++++++++++
> 1 file changed, 82 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/sound/qcom,sdm845.txt
>
> diff --git a/Documentation/devicetree/bindings/sound/qcom,sdm845.txt b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
> new file mode 100644
> index 0000000..68feb08
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/qcom,sdm845.txt
> @@ -0,0 +1,82 @@
> +* Qualcomm Technologies Inc. SDM845 ASoC sound card driver
> +
> +This binding describes the SDM845 sound card, which uses qdsp for audio.
> +
> +- compatible:
> + Usage: required
> + Value type: <stringlist>
> + Definition: must be "qcom,sdm845-sndcard"
> +
> +- qcom,audio-routing:
Use just '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.
> +
> +- cdc-vdd-supply:
> + Usage: Optional
> + Value type: <phandle>
> + Definition: phandle of regulator supply required for codec vdd.
The codec supply should be in the codec node.
> +
> += dailinks
> +Each subnode of sndcard represents either a dailink, and subnodes of each
> +dailinks would be cpu/codec/platform dais.
> +
> +- link-name:
> + 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: required
> + 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>
> + Definition: dai phandle/s and port of CPU/CODEC/PLATFORM node.
> +
> +Example:
> +
> +audio {
> + compatible = "qcom,sdm845-sndcard";
> + qcom,model = "sdm845-snd-card";
Not documented. Just use 'model'.
> + pinctrl-names = "default", "sleep";
> + pinctrl-0 = <&pri_mi2s_active &pri_mi2s_ws_active>;
> + pinctrl-1 = <&pri_mi2s_sleep &pri_mi2s_ws_sleep>;
> +
> + cdc-vdd-supply = <&pm8998_l14>;
> +
> + mm1-dai-link {
> + link-name = "MultiMedia1";
> + cpu {
> + sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
> + };
> + };
> +
> + pri-mi2s-dai-link {
> + link-name = "PRI MI2S Playback";
> + cpu {
> + sound-dai = <&q6afedai PRIMARY_MI2S_RX>;
> + };
> +
> + platform {
> + sound-dai = <&q6routing>;
> + };
> + };
> +};
> --
> Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
> is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
>
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