83 lines
2.2 KiB
YAML
83 lines
2.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
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# Copyright (C) 2019 Texas Instruments Incorporated
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/tlv320adcx140.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments TLV320ADCX140 Quad Channel Analog-to-Digital Converter
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maintainers:
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- Dan Murphy <dmurphy@ti.com>
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description: |
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The TLV320ADCX140 are multichannel (4-ch analog recording or 8-ch digital
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PDM microphones recording), high-performance audio, analog-to-digital
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converter (ADC) with analog inputs supporting up to 2V RMS. The TLV320ADCX140
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family supports line and microphone Inputs, and offers a programmable
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microphone bias or supply voltage generation.
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Specifications can be found at:
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http://www.ti.com/lit/ds/symlink/tlv320adc3140.pdf
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http://www.ti.com/lit/ds/symlink/tlv320adc5140.pdf
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http://www.ti.com/lit/ds/symlink/tlv320adc6140.pdf
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properties:
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compatible:
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oneOf:
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- const: ti,tlv320adc3140
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- const: ti,tlv320adc5140
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- const: ti,tlv320adc6140
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reg:
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maxItems: 1
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description: |
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I2C addresss of the device can be one of these 0x4c, 0x4d, 0x4e or 0x4f
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reset-gpios:
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description: |
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GPIO used for hardware reset.
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areg-supply:
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description: |
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Regulator with AVDD at 3.3V. If not defined then the internal regulator
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is enabled.
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ti,mic-bias-source:
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description: |
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Indicates the source for MIC Bias.
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0 - Mic bias is set to VREF
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1 - Mic bias is set to VREF × 1.096
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6 - Mic bias is set to AVDD
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- enum: [0, 1, 6]
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ti,vref-source:
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description: |
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Indicates the source for MIC Bias.
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0 - Set VREF to 2.75V
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1 - Set VREF to 2.5V
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2 - Set VREF to 1.375V
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint32
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- enum: [0, 1, 2]
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required:
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- compatible
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- reg
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c0 {
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#address-cells = <1>;
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#size-cells = <0>;
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codec: codec@4c {
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compatible = "ti,tlv320adc5140";
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reg = <0x4c>;
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ti,mic-bias-source = <6>;
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reset-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
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};
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};
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