1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra210-mvc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Tegra210 MVC
8
9 description: |
10 The Master Volume Control (MVC) provides gain or attenuation to a digital
11 signal path. It can be used in input or output signal path for per-stream
12 volume control or it can be used as master volume control. The MVC block
13 has one input and one output. The input digital stream can be mono or
14 multi-channel (up to 7.1 channels) stream. An independent mute control is
15 also included in the MVC block.
16
17 maintainers:
18 - Jon Hunter <jonathanh@nvidia.com>
19 - Mohan Kumar <mkumard@nvidia.com>
20 - Sameer Pujar <spujar@nvidia.com>
21
22 allOf:
23 - $ref: dai-common.yaml#
24
25 properties:
26 $nodename:
27 pattern: "^mvc@[0-9a-f]*$"
28
29 compatible:
30 oneOf:
31 - const: nvidia,tegra210-mvc
32 - items:
33 - enum:
34 - nvidia,tegra234-mvc
35 - nvidia,tegra194-mvc
36 - nvidia,tegra186-mvc
37 - const: nvidia,tegra210-mvc
38
39 reg:
40 maxItems: 1
41
42 sound-name-prefix:
43 pattern: "^MVC[1-9]$"
44
45 ports:
46 $ref: /schemas/graph.yaml#/properties/ports
47 properties:
48 port@0:
49 $ref: audio-graph-port.yaml#
50 unevaluatedProperties: false
51 description: |
52 MVC ACIF (Audio Client Interface) input port. This is connected
53 to corresponding ACIF output port on AHUB (Audio Hub).
54
55 port@1:
56 $ref: audio-graph-port.yaml#
57 unevaluatedProperties: false
58 description: |
59 MVC ACIF output port. This is connected to corresponding ACIF
60 input port on AHUB.
61
62 required:
63 - compatible
64 - reg
65
66 additionalProperties: false
67
68 examples:
69 - |
70
71 mvc@702da000 {
72 compatible = "nvidia,tegra210-mvc";
73 reg = <0x702da000 0x200>;
74 sound-name-prefix = "MVC1";
75 };
76
77 ...
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