80 lines
1.9 KiB
YAML
80 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/nvidia,tegra210-amx.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Tegra210 AMX
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description: |
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The Audio Multiplexer (AMX) block can multiplex up to four input streams
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each of which can have maximum 16 channels and generate an output stream
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with maximum 16 channels. A byte RAM helps to form an output frame by
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any combination of bytes from the input frames.
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maintainers:
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- Jon Hunter <jonathanh@nvidia.com>
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- Mohan Kumar <mkumard@nvidia.com>
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- Sameer Pujar <spujar@nvidia.com>
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allOf:
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- $ref: dai-common.yaml#
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properties:
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$nodename:
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pattern: "^amx@[0-9a-f]*$"
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compatible:
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oneOf:
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- const: nvidia,tegra210-amx
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- items:
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- const: nvidia,tegra186-amx
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- const: nvidia,tegra210-amx
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- const: nvidia,tegra194-amx
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- items:
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- const: nvidia,tegra234-amx
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- const: nvidia,tegra194-amx
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reg:
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maxItems: 1
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sound-name-prefix:
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pattern: "^AMX[1-9]$"
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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description: |
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AMX has four inputs and one output. Accordingly ACIF (Audio Client
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Interfaces) port nodes are defined to represent AMX inputs (port 0
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to 3) and output (port 4). These are connected to corresponding
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ports on AHUB (Audio Hub).
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patternProperties:
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'^port@[0-3]':
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$ref: audio-graph-port.yaml#
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unevaluatedProperties: false
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description: AMX ACIF input ports
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properties:
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port@4:
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$ref: audio-graph-port.yaml#
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unevaluatedProperties: false
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description: AMX ACIF output port
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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amx@702d3000 {
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compatible = "nvidia,tegra210-amx";
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reg = <0x702d3000 0x100>;
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sound-name-prefix = "AMX1";
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};
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...
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