75 lines
1.9 KiB
YAML
75 lines
1.9 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/cirrus,cs4234.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Cirrus Logic cs4234 audio CODEC
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maintainers:
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- patches@opensource.cirrus.com
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description:
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The CS4234 is a highly versatile CODEC that combines 4 channels of
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high performance analog to digital conversion, 4 channels of high
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performance digital to analog conversion for audio, and 1 channel of
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digital to analog conversion to provide a nondelayed audio reference
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signal to an external Class H tracking power supply. If not used to
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drive a tracking power supply, the 5th DAC can instead be used as a
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standard audio grade DAC, with performance specifications identical
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to that of the 4 DACs in the audio path. Additionally, the CS4234
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includes tunable group delay for each of the 4 audio DAC paths to
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provide lead time for the external switch-mode power supply, and a
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nondelayed path into the DAC outputs for input signals requiring a
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low-latency path to the outputs.
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properties:
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compatible:
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enum:
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- cirrus,cs4234
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reg:
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description:
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The 7-bit I2C address depends on the state of the ADx pins, in
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binary given by [0 0 1 0 AD2 AD1 AD0 0].
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items:
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minimum: 0x10
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maximum: 0x17
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VA-supply:
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description:
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Analogue power supply.
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VL-supply:
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description:
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Interface power supply.
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reset-gpios:
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maxItems: 1
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required:
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- compatible
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- reg
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- VA-supply
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- VL-supply
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additionalProperties: false
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examples:
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- |
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i2c@e0004000 {
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <0xe0004000 0x1000>;
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cs4234: codec@11 {
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compatible = "cirrus,cs4234";
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reg = <0x11>;
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VA-supply = <&vdd3v3>;
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VL-supply = <&vdd3v3>;
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reset-gpios = <&gpio 0>;
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};
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};
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