Documentation / devicetree / bindings / sound / qcom,wcd939x.yaml


Based on kernel version 6.10. Page generated on 2024-07-16 09:00 EST.

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/qcom,wcd939x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Qualcomm WCD9380/WCD9385 Audio Codec

maintainers:
  - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

description: |
  Qualcomm WCD9390/WCD9395 Codec is a standalone Hi-Fi audio codec IC.
  It has RX and TX Soundwire devices.
  The WCD9390/WCD9395 IC has a functionally separate USB-C Mux subsystem
  accessible over an I2C interface.
  The Audio Headphone and Microphone data path between the Codec and the USB-C Mux
  subsystems are external to the IC, thus requiring DT port-endpoint graph description
  to handle USB-C altmode & orientation switching for Audio Accessory Mode.

allOf:
  - $ref: dai-common.yaml#
  - $ref: qcom,wcd93xx-common.yaml#

properties:
  compatible:
    oneOf:
      - const: qcom,wcd9390-codec
      - items:
          - const: qcom,wcd9395-codec
          - const: qcom,wcd9390-codec

  mode-switch:
    description: Flag the port as possible handler of altmode switching
    type: boolean

  orientation-switch:
    description: Flag the port as possible handler of orientation switching
    type: boolean

  port:
    $ref: /schemas/graph.yaml#/properties/port
    description:
      A port node to link the WCD939x Codec node to USB MUX subsystems for the
      purpose of handling altmode muxing and orientation switching to detect and
      enable Audio Accessory Mode.

required:
  - compatible

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    codec {
        compatible = "qcom,wcd9390-codec";
        reset-gpios = <&tlmm 32 IRQ_TYPE_NONE>;
        #sound-dai-cells = <1>;
        qcom,tx-device = <&wcd939x_tx>;
        qcom,rx-device = <&wcd939x_rx>;
        qcom,micbias1-microvolt = <1800000>;
        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-headphone-vthreshold-microvolt = <50000>;
    };
 
    /* ... */
 
    soundwire@3210000 {
        #address-cells = <2>;
        #size-cells = <0>;
        reg = <0x03210000 0x2000>;
        wcd939x_rx: codec@0,4 {
            compatible = "sdw20217010e00";
            reg = <0 4>;
            qcom,rx-port-mapping = <1 2 3 4 5 6>;
        };
    };
 
    soundwire@3230000 {
        #address-cells = <2>;
        #size-cells = <0>;
        reg = <0x03230000 0x2000>;
        wcd938x_tx: codec@0,3 {
            compatible = "sdw20217010e00";
            reg = <0 3>;
            qcom,tx-port-mapping = <2 3 4 5>;
        };
    };

...