xref: /linux/Documentation/devicetree/bindings/sound/richtek,rt9123.yaml (revision 177bf8620cf4ed290ee170a6c5966adc0924b336) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/richtek,rt9123.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Richtek RT9123/RTQ9124 Audio Amplifier
8
9maintainers:
10  - ChiYuan Huang <cy_huang@richtek.com>
11
12description:
13  RT9123 is a 3.2W mono Class-D audio amplifier that features high efficiency
14  and performance with ultra-low quiescent current. The digital audio interface
15  support various formats, including I2S, left-justified, right-justified, and
16  TDM formats.
17
18  RTQ9124 is an ultra-low output noise, digital input, mono-channel Class-D
19  power amplifier that supports a 2.1MHz switching frequency. It integrates
20  both DC and AC load diagnostics, as well as real-time load monitoring to
21  assess speaker condition. The device operates from 4.5V to 18V and delivers
22  up to 30W output power.
23
24allOf:
25  - $ref: dai-common.yaml#
26
27properties:
28  compatible:
29    enum:
30      - richtek,rt9123
31      - richtek,rtq9124
32
33  reg:
34    maxItems: 1
35
36  '#sound-dai-cells':
37    const: 0
38
39  enable-gpios:
40    maxItems: 1
41
42required:
43  - compatible
44  - reg
45  - '#sound-dai-cells'
46
47unevaluatedProperties: false
48
49examples:
50  - |
51    #include <dt-bindings/gpio/gpio.h>
52
53    i2c {
54        #address-cells = <1>;
55        #size-cells = <0>;
56
57        amplifier@5e {
58            compatible = "richtek,rt9123";
59            reg = <0x5e>;
60            enable-gpios = <&gpio 26 GPIO_ACTIVE_HIGH>;
61            #sound-dai-cells = <0>;
62        };
63    };
64