blob: bc6c6b17223809b46a9c2cedf4ebb1240e4b656e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/awinic,aw8738.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Awinic AW8738 Audio Amplifier
maintainers:
- Stephan Gerhold <stephan@gerhold.net>
description:
The Awinic AW8738 is a simple audio amplifier with different operation modes
(set using one-wire pulse control). The mode configures the speaker-guard
function (primarily the power limit for the amplifier).
allOf:
- $ref: dai-common.yaml#
properties:
compatible:
const: awinic,aw8738
mode-gpios:
description:
GPIO used for one-wire pulse control. The pin is typically called SHDN
(active-low), but this is misleading since it is actually more than
just a simple shutdown/enable control.
maxItems: 1
awinic,mode:
description: Operation mode (number of pulses for one-wire pulse control)
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 1
maximum: 7
sound-name-prefix: true
required:
- compatible
- mode-gpios
- awinic,mode
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
audio-amplifier {
compatible = "awinic,aw8738";
mode-gpios = <&msmgpio 114 GPIO_ACTIVE_HIGH>;
awinic,mode = <5>;
sound-name-prefix = "Speaker Amp";
};
|
