xref: /linux/Documentation/devicetree/bindings/sound/marvell,mmp-sspa.yaml (revision 4fd18fc38757217c746aa063ba9e4729814dc737) 
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
12allOf:
13  - $ref: audio-graph-port.yaml#
14
15properties:
16  $nodename:
17    pattern: "^audio-controller(@.*)?$"
18
19  compatible:
20    const: marvell,mmp-sspa
21
22  reg:
23    items:
24      - description: RX block
25      - description: TX block
26
27  interrupts:
28    maxItems: 1
29
30  clocks:
31    items:
32      - description: Clock for the Audio block
33      - description: I2S bit clock
34
35  clock-names:
36    items:
37      - const: audio
38      - const: bitclk
39
40  power-domains:
41    maxItems: 1
42
43  '#sound-dai-cells':
44    const: 0
45
46  dmas:
47    items:
48      - description: TX DMA Channel
49      - description: RX DMA Channel
50
51  dma-names:
52    items:
53      - const: tx
54      - const: rx
55
56  port:
57    type: object
58
59    properties:
60      endpoint:
61        type: object
62
63        properties:
64          dai-format:
65            const: i2s
66
67required:
68  - "#sound-dai-cells"
69  - compatible
70  - reg
71  - interrupts
72  - clocks
73  - clock-names
74  - dmas
75  - dma-names
76  - port
77
78additionalProperties: false
79
80examples:
81  - |
82    #include <dt-bindings/clock/marvell,mmp2.h>
83
84    audio-controller@d42a0c00 {
85      compatible = "marvell,mmp-sspa";
86      reg = <0xd42a0c00 0x30>,
87            <0xd42a0c80 0x30>;
88      interrupts = <2>;
89      clock-names = "audio", "bitclk";
90      clocks = <&soc_clocks 127>,
91               <&audio_clk 1>;
92      #sound-dai-cells = <0>;
93      dmas = <&adma0 0>, <&adma0 1>;
94      dma-names = "tx", "rx";
95      port {
96        endpoint {
97          remote-endpoint = <&rt5631_0>;
98          dai-format = "i2s";
99        };
100      };
101    };
102
103...
104