Unverified Commit c6d25d57 authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
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ASoC: dt-bindings: wcd934x: add bindings for Headset Button detection 



Add bindings required for Multi Button Headset detection.
WCD934x support Headsets with upto 8 buttons including, impedance measurement
on both L/R Headset speakers and cross connection detection.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210604115230.23259-2-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent f3b3bceb

Documentation/devicetree/bindings/sound/qcom,wcd934x.yaml

+30 −0
Original line number Diff line number Diff line
@@ -77,6 +77,31 @@ properties: 
    minimum: 1800000

    maximum: 2850000



  qcom,hphl-jack-type-normally-closed:

    description: Indicates that HPHL jack switch type is normally closed

    type: boolean



  qcom,ground-jack-type-normally-closed:

    description: Indicates that Headset Ground switch type is normally closed

    type: boolean



  qcom,mbhc-headset-vthreshold-microvolt:

    description: Voltage threshold value for headset detection

    minimum: 0

    maximum: 2850000



  qcom,mbhc-headphone-vthreshold-microvolt:

    description: Voltage threshold value for headphone detection

    minimum: 0

    maximum: 2850000



  qcom,mbhc-buttons-vthreshold-microvolt:

    description:

      Array of 8 Voltage threshold values corresponding to headset

      button0 - button7

    minItems: 8

    maxItems: 8



  clock-output-names:

    const: mclk
@@ -159,6 +184,11 @@ examples: 
        qcom,micbias2-microvolt = <1800000>;

        qcom,micbias3-microvolt = <1800000>;

        qcom,micbias4-microvolt = <1800000>;

        qcom,hphl-jack-type-normally-closed;

        qcom,ground-jack-type-normally-closed;

        qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 500000 500000 500000>;

        qcom,mbhc-headset-vthreshold-microvolt = <1700000>;

        qcom,mbhc-headphone-vthreshold-microvolt = <50000>;

        clock-names = "extclk";

        clocks = <&rpmhcc 2>;