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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Richtek RT9120 Class-D audio amplifier
maintainers:
- ChiYuan Huang <cy_huang@richtek.com>
description: |
The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input
voltage range from 4.5V to 26.4V to meet the need on most common
applications like as TV, monitors. home entertainment, electronic music
equipment.
properties:
compatible:
enum:
- richtek,rt9120
reg:
description: I2C device address
maxItems: 1
pwdnn-gpios:
description: GPIO used for power down, low active
maxItems: 1
dvdd-supply:
description: |
Supply for the default on DVDD power, voltage domain must be 3P3V or 1P8V
'#sound-dai-cells':
const: 0
required:
- compatible
- reg
- dvdd-supply
- '#sound-dai-cells'
additionalProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
rt9120@1a {
compatible = "richtek,rt9120";
reg = <0x1a>;
pwdnn-gpios = <&gpio26 2 0>;
dvdd-supply = <&vdd_io_reg>;
#sound-dai-cells = <0>;
};
};
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