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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/wlf,wm8731.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Wolfson Microelectromics WM8731 audio CODEC
maintainers:
- patches@opensource.cirrus.com
description: |
Wolfson Microelectronics WM8731 audio CODEC
Pins on the device (for linking into audio routes):
* LOUT: Left Channel Line Output
* ROUT: Right Channel Line Output
* LHPOUT: Left Channel Headphone Output
* RHPOUT: Right Channel Headphone Output
* LLINEIN: Left Channel Line Input
* RLINEIN: Right Channel Line Input
* MICIN: Microphone Input
properties:
compatible:
enum:
- wlf,wm8731
reg:
maxItems: 1
"#sound-dai-cells":
const: 0
clocks:
description: Clock provider for MCLK pin.
maxItems: 1
clock-names:
items:
- const: mclk
AVDD-supply:
description: Analog power supply regulator on the AVDD pin.
HPVDD-supply:
description: Headphone power supply regulator on the HPVDD pin.
DBVDD-supply:
description: Digital buffer supply regulator for the DBVDD pin.
DCVDD-supply:
description: Digital core supply regulator for the DCVDD pin.
spi-max-frequency: true
additionalProperties: false
required:
- reg
- compatible
- AVDD-supply
- HPVDD-supply
- DBVDD-supply
- DCVDD-supply
examples:
- |
spi {
#address-cells = <1>;
#size-cells = <0>;
wm8731_i2c: codec@0 {
compatible = "wlf,wm8731";
reg = <0>;
spi-max-frequency = <12500000>;
AVDD-supply = <&avdd_reg>;
HPVDD-supply = <&hpvdd_reg>;
DCVDD-supply = <&dcvdd_reg>;
DBVDD-supply = <&dbvdd_reg>;
};
};
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
wm8731_spi: codec@1b {
compatible = "wlf,wm8731";
reg = <0x1b>;
AVDD-supply = <&avdd_reg>;
HPVDD-supply = <&hpvdd_reg>;
DCVDD-supply = <&dcvdd_reg>;
DBVDD-supply = <&dbvdd_reg>;
};
};
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