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 7title: Tegra210 MVC Device Tree Bindings 8 9description: | 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 17maintainers: 18 - Jon Hunter <jonathanh@nvidia.com> 19 - Mohan Kumar <mkumard@nvidia.com> 20 - Sameer Pujar <spujar@nvidia.com> 21 22allOf: 23 - $ref: name-prefix.yaml# 24 25properties: 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 62required: 63 - compatible 64 - reg 65 66additionalProperties: false 67 68examples: 69 - | 70 71 mvc@702da000 { 72 compatible = "nvidia,tegra210-mvc"; 73 reg = <0x702da000 0x200>; 74 sound-name-prefix = "MVC1"; 75 }; 76 77... 78