blob: 56e623d4e168f796a5001978cbebe4ce058c5e5e [file] [log] [blame]
Conor Dooleybc4c9d82022-07-01 20:22:49 +01001# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/snps,designware-i2s.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: DesignWare I2S controller
8
9maintainers:
10 - Jose Abreu <joabreu@synopsys.com>
11
12properties:
13 compatible:
14 oneOf:
15 - items:
16 - const: canaan,k210-i2s
17 - const: snps,designware-i2s
18 - enum:
19 - snps,designware-i2s
20
21 reg:
22 maxItems: 1
23
24 interrupts:
25 description: |
26 The interrupt line number for the I2S controller. Add this
27 parameter if the I2S controller that you are using does not
28 support DMA.
29 maxItems: 1
30
31 clocks:
32 description: Sampling rate reference clock
33 maxItems: 1
34
35 clock-names:
36 const: i2sclk
37
38 resets:
39 maxItems: 1
40
41 dmas:
42 items:
43 - description: TX DMA Channel
44 - description: RX DMA Channel
45 minItems: 1
46
47 dma-names:
48 items:
49 - const: tx
50 - const: rx
51 minItems: 1
52
Krzysztof Kozlowski58ae9a22022-12-03 17:04:41 +010053allOf:
54 - $ref: dai-common.yaml#
55 - if:
56 properties:
57 compatible:
58 contains:
59 const: canaan,k210-i2s
60 then:
61 properties:
62 "#sound-dai-cells":
63 const: 1
64 else:
65 properties:
66 "#sound-dai-cells":
67 const: 0
Conor Dooleybc4c9d82022-07-01 20:22:49 +010068
69required:
70 - compatible
71 - reg
72 - clocks
73 - clock-names
74
75oneOf:
76 - required:
77 - dmas
78 - dma-names
79 - required:
80 - interrupts
81
82unevaluatedProperties: false
83
84examples:
85 - |
86 soc_i2s: i2s@7ff90000 {
87 compatible = "snps,designware-i2s";
88 reg = <0x7ff90000 0x1000>;
89 clocks = <&scpi_i2sclk 0>;
90 clock-names = "i2sclk";
91 #sound-dai-cells = <0>;
92 dmas = <&dma0 5>;
93 dma-names = "tx";
94 };