1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/richtek,rt9120.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Richtek RT9120 Class-D audio amplifier
8
9 maintainers:
10 - ChiYuan Huang <cy_huang@richtek.com>
11
12 description: |
13 The RT9120 is a high efficiency, I2S-input, stereo audio power amplifier
14 delivering 2*20W into 8 Ohm BTL speaker loads. It supports the wide input
15 voltage range from 4.5V to 26.4V to meet the need on most common
16 applications like as TV, monitors. home entertainment, electronic music
17 equipment.
18
19 allOf:
20 - $ref: dai-common.yaml#
21
22 properties:
23 compatible:
24 enum:
25 - richtek,rt9120
26
27 reg:
28 description: I2C device address
29 maxItems: 1
30
31 pwdnn-gpios:
32 description: GPIO used for power down, low active
33 maxItems: 1
34
35 dvdd-supply:
36 description: |
37 Supply for the default on DVDD power, voltage domain must be 3P3V or 1P8V
38
39 '#sound-dai-cells':
40 const: 0
41
42 required:
43 - compatible
44 - reg
45 - dvdd-supply
46 - '#sound-dai-cells'
47
48 unevaluatedProperties: false
49
50 examples:
51 - |
52 i2c {
53 #address-cells = <1>;
54 #size-cells = <0>;
55 rt9120@1a {
56 compatible = "richtek,rt9120";
57 reg = <0x1a>;
58 pwdnn-gpios = <&gpio26 2 0>;
59 dvdd-supply = <&vdd_io_reg>;
60 #sound-dai-cells = <0>;
61 };
62 };
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