xref: /linux/Documentation/devicetree/bindings/sound/marvell,mmp-sspa.yaml (revision 7ae9fb1b7ecbb5d85d07857943f677fd1a559b18) 
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
8
9maintainers:
10  - Lubomir Rintel <lkundrak@v3.sk>
11
12allOf:
13  - $ref: dai-common.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    $ref: audio-graph-port.yaml#
58    unevaluatedProperties: false
59
60    properties:
61      endpoint:
62        type: object
63
64        properties:
65          dai-format:
66            const: i2s
67
68required:
69  - "#sound-dai-cells"
70  - compatible
71  - reg
72  - interrupts
73  - clocks
74  - clock-names
75  - dmas
76  - dma-names
77  - port
78
79unevaluatedProperties: false
80
81examples:
82  - |
83    #include <dt-bindings/clock/marvell,mmp2.h>
84
85    audio-controller@d42a0c00 {
86      compatible = "marvell,mmp-sspa";
87      reg = <0xd42a0c00 0x30>,
88            <0xd42a0c80 0x30>;
89      interrupts = <2>;
90      clock-names = "audio", "bitclk";
91      clocks = <&soc_clocks 127>,
92               <&audio_clk 1>;
93      #sound-dai-cells = <0>;
94      dmas = <&adma0 0>, <&adma0 1>;
95      dma-names = "tx", "rx";
96      port {
97        endpoint {
98          remote-endpoint = <&rt5631_0>;
99          dai-format = "i2s";
100        };
101      };
102    };
103
104...
105