Documentation/devicetree/bindings/sound/ti,tlv320adc3xxx.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,tlv320adc3xxx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments TLV320ADC3001/TLV320ADC3101 Stereo ADC

maintainers:
  - Ricard Wanderlof <ricardw@axis.com>

description: |
  Texas Instruments TLV320ADC3001 and TLV320ADC3101 Stereo ADC
  https://www.ti.com/product/TLV320ADC3001
  https://www.ti.com/product/TLV320ADC3101

properties:
  compatible:
    enum:
      - ti,tlv320adc3001
      - ti,tlv320adc3101

  reg:
    maxItems: 1
    description: I2C address

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

  '#gpio-cells':
    const: 2

  gpio-controller: true

  reset-gpios:
    maxItems: 1
    description: GPIO pin used for codec reset (RESET pin)

  clocks:
    maxItems: 1
    description: Master clock (MCLK)

  ti,dmdin-gpio1:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 0 # ADC3XXX_GPIO_DISABLED       - I/O buffers powered down and not used
      - 1 # ADC3XXX_GPIO_INPUT          - Various non-GPIO input functions
      - 2 # ADC3XXX_GPIO_GPI            - General purpose input
      - 3 # ADC3XXX_GPIO_GPO            - General purpose output
      - 4 # ADC3XXX_GPIO_CLKOUT         - Clock source set in CLKOUT_MUX reg
      - 5 # ADC3XXX_GPIO_INT1           - INT1 output
      - 6 # ADC3XXX_GPIO_SECONDARY_BCLK - Codec interface secondary BCLK
      - 7 # ADC3XXX_GPIO_SECONDARY_WCLK - Codec interface secondary WCLK
    default: 0
    description: |
      Configuration for DMDIN/GPIO1 pin.

      When ADC3XXX_GPIO_GPO is configured, this causes corresponding the
      ALSA control "GPIOx Output" to appear, as a switch control.

  ti,dmclk-gpio2:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 0 # ADC3XXX_GPIO_DISABLED       - I/O buffers powered down and not used
      - 1 # ADC3XXX_GPIO_INPUT          - Various non-GPIO input functions
      - 2 # ADC3XXX_GPIO_GPI            - General purpose input
      - 3 # ADC3XXX_GPIO_GPO            - General purpose output
      - 4 # ADC3XXX_GPIO_CLKOUT         - Clock source set in CLKOUT_MUX reg
      - 5 # ADC3XXX_GPIO_INT1           - INT1 output
      - 6 # ADC3XXX_GPIO_SECONDARY_BCLK - Codec interface secondary BCLK
      - 7 # ADC3XXX_GPIO_SECONDARY_WCLK - Codec interface secondary WCLK
    default: 0
    description: |
      Configuration for DMCLK/GPIO2 pin.

      When ADC3XXX_GPIO_GPO is configured, this causes corresponding the
      ALSA control "GPIOx Output" to appear, as a switch control.

      Note that there is currently no support for reading the GPIO pins as
      inputs.

  ti,micbias1-vg:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 0 # ADC3XXX_MICBIAS_OFF		- Mic bias is powered down
      - 1 # ADC3XXX_MICBIAS_2_0V	- Mic bias is set to 2.0V
      - 2 # ADC3XXX_MICBIAS_2_5V	- Mic bias is set to 2.5V
      - 3 # ADC3XXX_MICBIAS_AVDD	- Mic bias is same as AVDD supply
    default: 0
    description: |
      Mic bias voltage output on MICBIAS1 pin

  ti,micbias2-vg:
    $ref: /schemas/types.yaml#/definitions/uint32
    enum:
      - 0 # ADC3XXX_MICBIAS_OFF		- Mic bias is powered down
      - 1 # ADC3XXX_MICBIAS_2_0V	- Mic bias is set to 2.0V
      - 2 # ADC3XXX_MICBIAS_2_5V	- Mic bias is set to 2.5V
      - 3 # ADC3XXX_MICBIAS_AVDD	- Mic bias is same as AVDD supply
    default: 0
    description: |
      Mic bias voltage output on MICBIAS2 pin

required:
  - compatible
  - reg
  - clocks

additionalProperties: false

examples:
  - |

    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/sound/tlv320adc3xxx.h>

    i2c {
        #address-cells = <1>;
        #size-cells = <0>;
        tlv320adc3101: audio-codec@18 {
            compatible = "ti,tlv320adc3101";
            reg = <0x18>;
            reset-gpios = <&gpio_pc 3 GPIO_ACTIVE_LOW>;
            clocks = <&audio_mclk>;
            gpio-controller;
            #gpio-cells = <2>;
            ti,dmdin-gpio1 = <ADC3XXX_GPIO_GPO>;
            ti,micbias1-vg = <ADC3XXX_MICBIAS_AVDD>;
        };
    };

    audio_mclk: clock {
        compatible = "fixed-clock";
        #clock-cells = <0>;
        clock-frequency = <24576000>;
    };
...