xref: /openbmc/linux/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml (revision 2612e3bbc0386368a850140a6c9b990cd496a5ec)

# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
# Copyright (C) 2022 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,tlv320aic3x.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments TLV320AIC3x Codec

description: |
  TLV320AIC3x are a series of low-power stereo audio codecs with stereo
  headphone amplifier, as well as multiple inputs and outputs programmable in
  single-ended or fully differential configurations.

  The serial control bus supports SPI or I2C protocols, while the serial audio
  data bus is programmable for I2S, left/right-justified, DSP, or TDM modes.

  The following pins can be referred in the sound node's audio routing property:

  CODEC output pins:
     LLOUT
     RLOUT
     MONO_LOUT
     HPLOUT
     HPROUT
     HPLCOM
     HPRCOM

  CODEC input pins for TLV320AIC3104:
     MIC2L
     MIC2R
     LINE1L
     LINE1R

  CODEC input pins for other compatible codecs:
     MIC3L
     MIC3R
     LINE1L
     LINE2L
     LINE1R
     LINE2R

maintainers:
  - Jai Luthra <j-luthra@ti.com>

properties:
  compatible:
    enum:
      - ti,tlv320aic3x
      - ti,tlv320aic33
      - ti,tlv320aic3007
      - ti,tlv320aic3106
      - ti,tlv320aic3104

  reg:
    maxItems: 1

  reset-gpios:
    maxItems: 1
    description:
      GPIO specification for the active low RESET input.

  gpio-reset:
    $ref: /schemas/types.yaml#/definitions/uint32-matrix
    maxItems: 1
    description:
      Deprecated, please use reset-gpios instead.
    deprecated: true

  ai3x-gpio-func:
    description: AIC3X_GPIO1 & AIC3X_GPIO2 Functionality
    $ref: /schemas/types.yaml#/definitions/uint32-array
    maxItems: 2

  ai3x-micbias-vg:
    description: MicBias required voltage. If node is omitted then MicBias is powered down.
    $ref: /schemas/types.yaml#/definitions/uint32
    oneOf:
      - const: 1
        description: MICBIAS output is powered to 2.0V.
      - const: 2
        description: MICBIAS output is powered to 2.5V.
      - const: 3
        description: MICBIAS output is connected to AVDD.

  ai3x-ocmv:
    description: Output Common-Mode Voltage selection.
    $ref: /schemas/types.yaml#/definitions/uint32
    oneOf:
      - const: 0
        description: 1.35V
      - const: 1
        description: 1.5V
      - const: 2
        description: 1.65V
      - const: 3
        description: 1.8V

  AVDD-supply:
    description: Analog DAC voltage.

  IOVDD-supply:
    description: I/O voltage.

  DRVDD-supply:
    description: ADC analog and output driver voltage.

  DVDD-supply:
    description: Digital core voltage.

  '#sound-dai-cells':
    const: 0

  clocks:
    maxItems: 1

  port:
    $ref: audio-graph-port.yaml#
    unevaluatedProperties: false

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;

      tlv320aic3x_i2c: audio-codec@1b {
        compatible = "ti,tlv320aic3x";
        reg = <0x1b>;

        reset-gpios = <&gpio1 17 GPIO_ACTIVE_LOW>;

        AVDD-supply = <&regulator>;
        IOVDD-supply = <&regulator>;
        DRVDD-supply = <&regulator>;
        DVDD-supply = <&regulator>;
      };
    };

  - |
    #include <dt-bindings/gpio/gpio.h>
    spi {
      #address-cells = <1>;
      #size-cells = <0>;

      tlv320aic3x_spi: audio-codec@0 {
        compatible = "ti,tlv320aic3x";
        reg = <0>; /* CS number */
        #sound-dai-cells = <0>;

        AVDD-supply = <&regulator>;
        IOVDD-supply = <&regulator>;
        DRVDD-supply = <&regulator>;
        DVDD-supply = <&regulator>;
        ai3x-ocmv = <0>;
      };
    };

...