| 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-admaif.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Tegra210 ADMAIF |
| 8 | |
| 9 | description: | |
| 10 | ADMAIF is the interface between ADMA and AHUB. Each ADMA channel |
| 11 | that sends/receives data to/from AHUB must interface through an |
| 12 | ADMAIF channel. ADMA channel sending data to AHUB pairs with ADMAIF |
| 13 | Tx channel and ADMA channel receiving data from AHUB pairs with |
| 14 | ADMAIF Rx channel. |
| 15 | |
| 16 | maintainers: |
| 17 | - Jon Hunter <jonathanh@nvidia.com> |
| 18 | - Sameer Pujar <spujar@nvidia.com> |
| 19 | |
| 20 | properties: |
| 21 | $nodename: |
| 22 | pattern: "^admaif@[0-9a-f]*$" |
| 23 | |
| 24 | compatible: |
| 25 | oneOf: |
| 26 | - enum: |
| 27 | - nvidia,tegra210-admaif |
| 28 | - nvidia,tegra186-admaif |
| 29 | - items: |
| 30 | - enum: |
| 31 | - nvidia,tegra234-admaif |
| 32 | - nvidia,tegra194-admaif |
| 33 | - const: nvidia,tegra186-admaif |
| 34 | |
| 35 | reg: |
| 36 | maxItems: 1 |
| 37 | |
| 38 | dmas: true |
| 39 | |
| 40 | dma-names: true |
| 41 | |
| 42 | ports: |
| 43 | $ref: /schemas/graph.yaml#/properties/ports |
| 44 | description: | |
| 45 | Contains list of ACIF (Audio CIF) port nodes for ADMAIF channels. |
| 46 | The number of port nodes depends on the number of ADMAIF channels |
| 47 | that SoC may have. These are interfaced with respective ACIF ports |
| 48 | in AHUB (Audio Hub). Each port is capable of data transfers in |
| 49 | both directions. |
| 50 | |
| 51 | patternProperties: |
| 52 | '^port@[0-9]': |
| 53 | $ref: audio-graph-port.yaml# |
| 54 | unevaluatedProperties: false |
| 55 | |
| 56 | if: |
| 57 | properties: |
| 58 | compatible: |
| 59 | contains: |
| 60 | const: nvidia,tegra210-admaif |
| 61 | |
| 62 | then: |
| 63 | properties: |
| 64 | dmas: |
| 65 | description: |
| 66 | DMA channel specifiers, equally divided for Tx and Rx. |
| 67 | minItems: 1 |
| 68 | maxItems: 20 |
| 69 | dma-names: |
| 70 | items: |
| 71 | pattern: "^[rt]x(10|[1-9])$" |
| 72 | description: |
| 73 | Should be "rx1", "rx2" ... "rx10" for DMA Rx channel |
| 74 | Should be "tx1", "tx2" ... "tx10" for DMA Tx channel |
| 75 | minItems: 1 |
| 76 | maxItems: 20 |
| 77 | |
| 78 | else: |
| 79 | properties: |
| 80 | dmas: |
| 81 | description: |
| 82 | DMA channel specifiers, equally divided for Tx and Rx. |
| 83 | minItems: 1 |
| 84 | maxItems: 40 |
| 85 | dma-names: |
| 86 | items: |
| 87 | pattern: "^[rt]x(1[0-9]|[1-9]|20)$" |
| 88 | description: |
| 89 | Should be "rx1", "rx2" ... "rx20" for DMA Rx channel |
| 90 | Should be "tx1", "tx2" ... "tx20" for DMA Tx channel |
| 91 | minItems: 1 |
| 92 | maxItems: 40 |
| 93 | |
| 94 | required: |
| 95 | - compatible |
| 96 | - reg |
| 97 | - dmas |
| 98 | - dma-names |
| 99 | |
| 100 | additionalProperties: false |
| 101 | |
| 102 | examples: |
| 103 | - | |
| 104 | admaif@702d0000 { |
| 105 | compatible = "nvidia,tegra210-admaif"; |
| 106 | reg = <0x702d0000 0x800>; |
| 107 | dmas = <&adma 1>, <&adma 1>, |
| 108 | <&adma 2>, <&adma 2>, |
| 109 | <&adma 3>, <&adma 3>, |
| 110 | <&adma 4>, <&adma 4>, |
| 111 | <&adma 5>, <&adma 5>, |
| 112 | <&adma 6>, <&adma 6>, |
| 113 | <&adma 7>, <&adma 7>, |
| 114 | <&adma 8>, <&adma 8>, |
| 115 | <&adma 9>, <&adma 9>, |
| 116 | <&adma 10>, <&adma 10>; |
| 117 | dma-names = "rx1", "tx1", |
| 118 | "rx2", "tx2", |
| 119 | "rx3", "tx3", |
| 120 | "rx4", "tx4", |
| 121 | "rx5", "tx5", |
| 122 | "rx6", "tx6", |
| 123 | "rx7", "tx7", |
| 124 | "rx8", "tx8", |
| 125 | "rx9", "tx9", |
| 126 | "rx10", "tx10"; |
| 127 | }; |
| 128 | |
| 129 | ... |