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Diffstat (limited to 'Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml')
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1 files changed, 76 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml new file mode 100644 index 000000000000..e2f5a8591d8f --- /dev/null +++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-mvc.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/nvidia,tegra210-mvc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Tegra210 MVC Device Tree Bindings + +description: | + The Master Volume Control (MVC) provides gain or attenuation to a digital + signal path. It can be used in input or output signal path for per-stream + volume control or it can be used as master volume control. The MVC block + has one input and one output. The input digital stream can be mono or + multi-channel (up to 7.1 channels) stream. An independent mute control is + also included in the MVC block. + +maintainers: + - Jon Hunter <jonathanh@nvidia.com> + - Mohan Kumar <mkumard@nvidia.com> + - Sameer Pujar <spujar@nvidia.com> + +allOf: + - $ref: name-prefix.yaml# + +properties: + $nodename: + pattern: "^mvc@[0-9a-f]*$" + + compatible: + oneOf: + - const: nvidia,tegra210-mvc + - items: + - enum: + - nvidia,tegra194-mvc + - nvidia,tegra186-mvc + - const: nvidia,tegra210-mvc + + reg: + maxItems: 1 + + sound-name-prefix: + pattern: "^MVC[1-9]$" + + ports: + $ref: /schemas/graph.yaml#/properties/ports + properties: + port@0: + $ref: audio-graph-port.yaml# + unevaluatedProperties: false + description: | + MVC ACIF (Audio Client Interface) input port. This is connected + to corresponding ACIF output port on AHUB (Audio Hub). + + port@1: + $ref: audio-graph-port.yaml# + unevaluatedProperties: false + description: | + MVC ACIF output port. This is connected to corresponding ACIF + input port on AHUB. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + + mvc@702da000 { + compatible = "nvidia,tegra210-mvc"; + reg = <0x702da000 0x200>; + sound-name-prefix = "MVC1"; + }; + +... |