blob: 156560b2a9801d22277cc7eee4186bb4bdfad2ff (
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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/cirrus,cs4234.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Cirrus Logic cs4234 audio CODEC
maintainers:
- patches@opensource.cirrus.com
description:
The CS4234 is a highly versatile CODEC that combines 4 channels of
high performance analog to digital conversion, 4 channels of high
performance digital to analog conversion for audio, and 1 channel of
digital to analog conversion to provide a nondelayed audio reference
signal to an external Class H tracking power supply. If not used to
drive a tracking power supply, the 5th DAC can instead be used as a
standard audio grade DAC, with performance specifications identical
to that of the 4 DACs in the audio path. Additionally, the CS4234
includes tunable group delay for each of the 4 audio DAC paths to
provide lead time for the external switch-mode power supply, and a
nondelayed path into the DAC outputs for input signals requiring a
low-latency path to the outputs.
properties:
compatible:
enum:
- cirrus,cs4234
reg:
description:
The 7-bit I2C address depends on the state of the ADx pins, in
binary given by [0 0 1 0 AD2 AD1 AD0 0].
items:
minimum: 0x10
maximum: 0x17
VA-supply:
description:
Analogue power supply.
VL-supply:
description:
Interface power supply.
reset-gpios:
maxItems: 1
required:
- compatible
- reg
- VA-supply
- VL-supply
additionalProperties: false
examples:
- |
i2c@e0004000 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0xe0004000 0x1000>;
cs4234: codec@11 {
compatible = "cirrus,cs4234";
reg = <0x11>;
VA-supply = <&vdd3v3>;
VL-supply = <&vdd3v3>;
reset-gpios = <&gpio 0>;
};
};
|
