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