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1# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/sound/cirrus,cs4234.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Cirrus Logic cs4234 audio CODEC8 9maintainers:10 - patches@opensource.cirrus.com11 12description:13 The CS4234 is a highly versatile CODEC that combines 4 channels of14 high performance analog to digital conversion, 4 channels of high15 performance digital to analog conversion for audio, and 1 channel of16 digital to analog conversion to provide a nondelayed audio reference17 signal to an external Class H tracking power supply. If not used to18 drive a tracking power supply, the 5th DAC can instead be used as a19 standard audio grade DAC, with performance specifications identical20 to that of the 4 DACs in the audio path. Additionally, the CS423421 includes tunable group delay for each of the 4 audio DAC paths to22 provide lead time for the external switch-mode power supply, and a23 nondelayed path into the DAC outputs for input signals requiring a24 low-latency path to the outputs.25 26properties:27 compatible:28 enum:29 - cirrus,cs423430 31 reg:32 description:33 The 7-bit I2C address depends on the state of the ADx pins, in34 binary given by [0 0 1 0 AD2 AD1 AD0 0].35 items:36 minimum: 0x1037 maximum: 0x1738 39 VA-supply:40 description:41 Analogue power supply.42 43 VL-supply:44 description:45 Interface power supply.46 47 reset-gpios:48 maxItems: 149 50required:51 - compatible52 - reg53 - VA-supply54 - VL-supply55 56additionalProperties: false57 58examples:59 - |60 i2c@e0004000 {61 #address-cells = <1>;62 #size-cells = <0>;63 reg = <0xe0004000 0x1000>;64 65 cs4234: codec@11 {66 compatible = "cirrus,cs4234";67 reg = <0x11>;68 69 VA-supply = <&vdd3v3>;70 VL-supply = <&vdd3v3>;71 72 reset-gpios = <&gpio 0>;73 };74 };75