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
7 title: Marvel SSPA Digital Audio Interface
8
9 maintainers:
10 - Lubomir Rintel <lkundrak@v3.sk>
11
12 allOf:
13 - $ref: dai-common.yaml#
14
15 properties:
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 additionalProperties: true
64
65 properties:
66 dai-format:
67 const: i2s
68
69 required:
70 - "#sound-dai-cells"
71 - compatible
72 - reg
73 - interrupts
74 - clocks
75 - clock-names
76 - dmas
77 - dma-names
78 - port
79
80 unevaluatedProperties: false
81
82 examples:
83 - |
84 #include <dt-bindings/clock/marvell,mmp2.h>
85
86 audio-controller@d42a0c00 {
87 compatible = "marvell,mmp-sspa";
88 reg = <0xd42a0c00 0x30>,
89 <0xd42a0c80 0x30>;
90 interrupts = <2>;
91 clock-names = "audio", "bitclk";
92 clocks = <&soc_clocks 127>,
93 <&audio_clk 1>;
94 #sound-dai-cells = <0>;
95 dmas = <&adma0 0>, <&adma0 1>;
96 dma-names = "tx", "rx";
97 port {
98 endpoint {
99 remote-endpoint = <&rt5631_0>;
100 dai-format = "i2s";
101 };
102 };
103 };
104
105 ...
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