Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml

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System
Linux kernel
Corpus path
Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
Extension
.yaml
Size
7355 bytes
Lines
213
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
# Copyright (C) 2019 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,tlv320adcx140.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments TLV320ADCX140 Quad Channel Analog-to-Digital Converter

maintainers:
  - Andrew Davis <afd@ti.com>

description: |
  The TLV320ADCX140 are multichannel (4-ch analog recording or 8-ch digital
  PDM microphones recording), high-performance audio, analog-to-digital
  converter (ADC) with analog inputs supporting up to 2V RMS. The TLV320ADCX140
  family supports line and  microphone Inputs, and offers a programmable
  microphone bias or supply voltage generation.

  Specifications can be found at:
    https://www.ti.com/lit/ds/symlink/tlv320adc3140.pdf
    https://www.ti.com/lit/ds/symlink/tlv320adc5140.pdf
    https://www.ti.com/lit/ds/symlink/tlv320adc6140.pdf

properties:
  compatible:
    enum:
      - ti,tlv320adc3140
      - ti,tlv320adc5140
      - ti,tlv320adc6140

  reg:
    maxItems: 1
    description: |
      I2C address of the device can be one of these 0x4c, 0x4d, 0x4e or 0x4f

  reset-gpios:
    maxItems: 1
    description: |
      GPIO used for hardware reset.

  areg-supply:
    description: |
      External supply of 1.8V. If not defined then the internal regulator is
      enabled instead.

  avdd-supply: true
  iovdd-supply: true

  ti,mic-bias-source:
    description: |
      Indicates the source for MIC Bias.
      0 - Mic bias is set to VREF
      1 - Mic bias is set to VREF × 1.096
      6 - Mic bias is set to AVDD
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 6]

  ti,vref-source:
    description: |
      Indicates the source for MIC Bias.
      0 - Set VREF to 2.75V
      1 - Set VREF to 2.5V
      2 - Set VREF to 1.375V
    $ref: /schemas/types.yaml#/definitions/uint32
    enum: [0, 1, 2]

  ti,pdm-edge-select:
    description: |
       Defines the PDMCLK sampling edge configuration for the PDM inputs.  This

Annotation

Implementation Notes