blob: a970fd264b2135c27de38825f966417e22284ec5 (
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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/snps,designware-i2s.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: DesignWare I2S controller
maintainers:
- Jose Abreu <joabreu@synopsys.com>
properties:
compatible:
oneOf:
- items:
- const: canaan,k210-i2s
- const: snps,designware-i2s
- enum:
- snps,designware-i2s
reg:
maxItems: 1
interrupts:
description: |
The interrupt line number for the I2S controller. Add this
parameter if the I2S controller that you are using does not
support DMA.
maxItems: 1
clocks:
description: Sampling rate reference clock
maxItems: 1
clock-names:
const: i2sclk
resets:
items:
- description: Optional controller resets
dmas:
items:
- description: TX DMA Channel
- description: RX DMA Channel
minItems: 1
dma-names:
items:
- const: tx
- const: rx
minItems: 1
allOf:
- $ref: dai-common.yaml#
- if:
properties:
compatible:
contains:
const: canaan,k210-i2s
then:
properties:
"#sound-dai-cells":
const: 1
else:
properties:
"#sound-dai-cells":
const: 0
required:
- compatible
- reg
- clocks
- clock-names
oneOf:
- required:
- dmas
- dma-names
- required:
- interrupts
unevaluatedProperties: false
examples:
- |
soc_i2s: i2s@7ff90000 {
compatible = "snps,designware-i2s";
reg = <0x7ff90000 0x1000>;
clocks = <&scpi_i2sclk 0>;
clock-names = "i2sclk";
#sound-dai-cells = <0>;
dmas = <&dma0 5>;
dma-names = "tx";
};
|