| # 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 |
| |
| 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"; |
| }; |
| |
| ... |
