xref: /linux/Documentation/devicetree/bindings/sound/marvell,mmp-sspa.yaml (revision da1d9caf95def6f0320819cf941c9fd1069ba9e1) 
1# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/marvell,mmp-sspa.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Marvel SSPA Digital Audio Interface Bindings
8
9maintainers:
10  - Lubomir Rintel <lkundrak@v3.sk>
11
12properties:
13  $nodename:
14    pattern: "^audio-controller(@.*)?$"
15
16  compatible:
17    const: marvell,mmp-sspa
18
19  reg:
20    items:
21      - description: RX block
22      - description: TX block
23
24  interrupts:
25    maxItems: 1
26
27  clocks:
28    items:
29      - description: Clock for the Audio block
30      - description: I2S bit clock
31
32  clock-names:
33    items:
34      - const: audio
35      - const: bitclk
36
37  power-domains:
38    maxItems: 1
39
40  '#sound-dai-cells':
41    const: 0
42
43  dmas:
44    items:
45      - description: TX DMA Channel
46      - description: RX DMA Channel
47
48  dma-names:
49    items:
50      - const: tx
51      - const: rx
52
53  port:
54    $ref: audio-graph-port.yaml#
55    unevaluatedProperties: false
56
57    properties:
58      endpoint:
59        type: object
60
61        properties:
62          dai-format:
63            const: i2s
64
65required:
66  - "#sound-dai-cells"
67  - compatible
68  - reg
69  - interrupts
70  - clocks
71  - clock-names
72  - dmas
73  - dma-names
74  - port
75
76additionalProperties: false
77
78examples:
79  - |
80    #include <dt-bindings/clock/marvell,mmp2.h>
81
82    audio-controller@d42a0c00 {
83      compatible = "marvell,mmp-sspa";
84      reg = <0xd42a0c00 0x30>,
85            <0xd42a0c80 0x30>;
86      interrupts = <2>;
87      clock-names = "audio", "bitclk";
88      clocks = <&soc_clocks 127>,
89               <&audio_clk 1>;
90      #sound-dai-cells = <0>;
91      dmas = <&adma0 0>, <&adma0 1>;
92      dma-names = "tx", "rx";
93      port {
94        endpoint {
95          remote-endpoint = <&rt5631_0>;
96          dai-format = "i2s";
97        };
98      };
99    };
100
101...
102