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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-adx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Tegra210 ADX Device Tree Bindings
description: |
The Audio Demultiplexer (ADX) block takes an input stream with up to
16 channels and demultiplexes it into four output streams of up to 16
channels each. A byte RAM helps to form output frames by any combination
of bytes from the input frame. Its design is identical to that of byte
RAM in the AMX except that the data flow direction is reversed.
maintainers:
- Jon Hunter <jonathanh@nvidia.com>
- Mohan Kumar <mkumard@nvidia.com>
- Sameer Pujar <spujar@nvidia.com>
allOf:
- $ref: name-prefix.yaml#
properties:
$nodename:
pattern: "^adx@[0-9a-f]*$"
compatible:
oneOf:
- const: nvidia,tegra210-adx
- items:
- enum:
- nvidia,tegra234-adx
- nvidia,tegra194-adx
- nvidia,tegra186-adx
- const: nvidia,tegra210-adx
reg:
maxItems: 1
sound-name-prefix:
pattern: "^ADX[1-9]$"
ports:
$ref: /schemas/graph.yaml#/properties/ports
description: |
ADX has one input and four outputs. Accordingly ACIF (Audio Client
Interface) port nodes are defined to represent ADX input (port 0)
and outputs (ports 1 to 4). These are connected to corresponding
ports on AHUB (Audio Hub).
properties:
port@0:
$ref: audio-graph-port.yaml#
unevaluatedProperties: false
description: ADX ACIF input port
patternProperties:
'^port@[1-4]':
$ref: audio-graph-port.yaml#
unevaluatedProperties: false
description: ADX ACIF output ports
required:
- compatible
- reg
additionalProperties: false
examples:
- |
adx@702d3800 {
compatible = "nvidia,tegra210-adx";
reg = <0x702d3800 0x100>;
sound-name-prefix = "ADX1";
};
...
|
