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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | # 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 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: dai-common.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"; }; ... |