# 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"; }; ...