1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/adi,max98388.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Analog Devices MAX98388 Speaker Amplifier
8
9 maintainers:
10 - Ryan Lee <ryans.lee@analog.com>
11
12 description:
13 The MAX98388 is a mono Class-D speaker amplifier with I/V feedback.
14 The device provides a PCM interface for audio data and a standard
15 I2C interface for control data communication.
16
17 allOf:
18 - $ref: dai-common.yaml#
19
20 properties:
21 compatible:
22 enum:
23 - adi,max98388
24
25 reg:
26 maxItems: 1
27
28 '#sound-dai-cells':
29 const: 0
30
31 adi,vmon-slot-no:
32 description: slot number of the voltage feedback monitor
33 $ref: /schemas/types.yaml#/definitions/uint32
34 minimum: 0
35 maximum: 15
36 default: 0
37
38 adi,imon-slot-no:
39 description: slot number of the current feedback monitor
40 $ref: /schemas/types.yaml#/definitions/uint32
41 minimum: 0
42 maximum: 15
43 default: 1
44
45 adi,interleave-mode:
46 description:
47 For cases where a single combined channel for the I/V feedback data
48 is not sufficient, the device can also be configured to share
49 a single data output channel on alternating frames.
50 In this configuration, the current and voltage data will be frame
51 interleaved on a single output channel.
52 type: boolean
53
54 reset-gpios:
55 maxItems: 1
56
57 required:
58 - compatible
59 - reg
60 - '#sound-dai-cells'
61
62 unevaluatedProperties: false
63
64 examples:
65 - |
66 #include <dt-bindings/gpio/gpio.h>
67 i2c {
68 #address-cells = <1>;
69 #size-cells = <0>;
70 max98388: amplifier@39 {
71 compatible = "adi,max98388";
72 reg = <0x39>;
73 #sound-dai-cells = <0>;
74 adi,vmon-slot-no = <0>;
75 adi,imon-slot-no = <1>;
76 adi,interleave-mode;
77 reset-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
78 };
79 };
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