| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sound/nvidia,tegra210-adx.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Tegra210 ADX |
| 8 | |
| 9 | description: | |
| 10 | The Audio Demultiplexer (ADX) block takes an input stream with up to |
| 11 | 16 channels and demultiplexes it into four output streams of up to 16 |
| 12 | channels each. A byte RAM helps to form output frames by any combination |
| 13 | of bytes from the input frame. Its design is identical to that of byte |
| 14 | RAM in the AMX except that the data flow direction is reversed. |
| 15 | |
| 16 | maintainers: |
| 17 | - Jon Hunter <jonathanh@nvidia.com> |
| 18 | - Mohan Kumar <mkumard@nvidia.com> |
| 19 | - Sameer Pujar <spujar@nvidia.com> |
| 20 | |
| 21 | allOf: |
| 22 | - $ref: dai-common.yaml# |
| 23 | |
| 24 | properties: |
| 25 | $nodename: |
| 26 | pattern: "^adx@[0-9a-f]*$" |
| 27 | |
| 28 | compatible: |
| 29 | oneOf: |
| 30 | - const: nvidia,tegra210-adx |
| 31 | - items: |
| 32 | - enum: |
| 33 | - nvidia,tegra234-adx |
| 34 | - nvidia,tegra194-adx |
| 35 | - nvidia,tegra186-adx |
| 36 | - const: nvidia,tegra210-adx |
| 37 | |
| 38 | reg: |
| 39 | maxItems: 1 |
| 40 | |
| 41 | sound-name-prefix: |
| 42 | pattern: "^ADX[1-9]$" |
| 43 | |
| 44 | ports: |
| 45 | $ref: /schemas/graph.yaml#/properties/ports |
| 46 | description: | |
| 47 | ADX has one input and four outputs. Accordingly ACIF (Audio Client |
| 48 | Interface) port nodes are defined to represent ADX input (port 0) |
| 49 | and outputs (ports 1 to 4). These are connected to corresponding |
| 50 | ports on AHUB (Audio Hub). |
| 51 | properties: |
| 52 | port@0: |
| 53 | $ref: audio-graph-port.yaml# |
| 54 | unevaluatedProperties: false |
| 55 | description: ADX ACIF input port |
| 56 | patternProperties: |
| 57 | '^port@[1-4]': |
| 58 | $ref: audio-graph-port.yaml# |
| 59 | unevaluatedProperties: false |
| 60 | description: ADX ACIF output ports |
| 61 | |
| 62 | required: |
| 63 | - compatible |
| 64 | - reg |
| 65 | |
| 66 | additionalProperties: false |
| 67 | |
| 68 | examples: |
| 69 | - | |
| 70 | |
| 71 | adx@702d3800 { |
| 72 | compatible = "nvidia,tegra210-adx"; |
| 73 | reg = <0x702d3800 0x100>; |
| 74 | sound-name-prefix = "ADX1"; |
| 75 | }; |
| 76 | |
| 77 | ... |