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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2022 - 2023 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/ti,tas2781.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments TAS2563/TAS2781 SmartAMP
maintainers:
- Shenghao Ding <shenghao-ding@ti.com>
description: |
The TAS2563/TAS2781 is a mono, digital input Class-D audio
amplifier optimized for efficiently driving high peak power into
small loudspeakers. An integrated on-chip DSP supports Texas
Instruments Smart Amp speaker protection algorithm. The
integrated speaker voltage and current sense provides for real time
monitoring of loudspeaker behavior.
Specifications about the audio amplifier can be found at:
https://www.ti.com/lit/gpn/tas2563
https://www.ti.com/lit/gpn/tas2781
properties:
compatible:
description: |
ti,tas2563: 6.1-W Boosted Class-D Audio Amplifier With Integrated
DSP and IV Sense, 16/20/24/32bit stereo I2S or multichannel TDM.
ti,tas2781: 24-V Class-D Amplifier with Real Time Integrated Speaker
Protection and Audio Processing, 16/20/24/32bit stereo I2S or
multichannel TDM.
oneOf:
- items:
- enum:
- ti,tas2563
- const: ti,tas2781
- enum:
- ti,tas2781
reg:
description:
I2C address, in multiple-AMP case, all the i2c address
aggregate as one Audio Device to support multiple audio slots.
maxItems: 8
minItems: 1
reset-gpios:
maxItems: 1
interrupts:
maxItems: 1
'#sound-dai-cells':
const: 0
required:
- compatible
- reg
allOf:
- $ref: dai-common.yaml#
- if:
properties:
compatible:
contains:
enum:
- ti,tas2563
then:
properties:
reg:
description:
I2C address, in multiple-AMP case, all the i2c address
aggregate as one Audio Device to support multiple audio slots.
maxItems: 4
minItems: 1
items:
minimum: 0x4c
maximum: 0x4f
- if:
properties:
compatible:
contains:
enum:
- ti,tas2781
then:
properties:
reg:
description:
I2C address, in multiple-AMP case, all the i2c address
aggregate as one Audio Device to support multiple audio slots.
maxItems: 8
minItems: 1
items:
minimum: 0x38
maximum: 0x3f
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
/* example with quad tas2781s, such as tablet or pad device */
#address-cells = <1>;
#size-cells = <0>;
quad_tas2781: tas2781@38 {
compatible = "ti,tas2781";
reg = <0x38>, /* Audio slot 0 */
<0x3a>, /* Audio slot 1 */
<0x39>, /* Audio slot 2 */
<0x3b>; /* Audio slot 3 */
#sound-dai-cells = <0>;
reset-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
interrupt-parent = <&gpio1>;
interrupts = <15>;
};
};
...
|
