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| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
| %YAML 1.2
| ---
| $id: http://devicetree.org/schemas/sound/nvidia,tegra210-admaif.yaml#
| $schema: http://devicetree.org/meta-schemas/core.yaml#
|
| title: Tegra210 ADMAIF Device Tree Bindings
|
| description: |
| ADMAIF is the interface between ADMA and AHUB. Each ADMA channel
| that sends/receives data to/from AHUB must interface through an
| ADMAIF channel. ADMA channel sending data to AHUB pairs with ADMAIF
| Tx channel and ADMA channel receiving data from AHUB pairs with
| ADMAIF Rx channel.
|
| maintainers:
| - Jon Hunter <jonathanh@nvidia.com>
| - Sameer Pujar <spujar@nvidia.com>
|
| properties:
| $nodename:
| pattern: "^admaif@[0-9a-f]*$"
|
| compatible:
| oneOf:
| - enum:
| - nvidia,tegra210-admaif
| - nvidia,tegra186-admaif
| - items:
| - const: nvidia,tegra194-admaif
| - const: nvidia,tegra186-admaif
|
| reg:
| maxItems: 1
|
| dmas: true
|
| dma-names: true
|
| if:
| properties:
| compatible:
| contains:
| const: nvidia,tegra210-admaif
|
| then:
| properties:
| dmas:
| description:
| DMA channel specifiers, equally divided for Tx and Rx.
| minItems: 1
| maxItems: 20
| dma-names:
| items:
| pattern: "^[rt]x(10|[1-9])$"
| description:
| Should be "rx1", "rx2" ... "rx10" for DMA Rx channel
| Should be "tx1", "tx2" ... "tx10" for DMA Tx channel
| minItems: 1
| maxItems: 20
|
| else:
| properties:
| dmas:
| description:
| DMA channel specifiers, equally divided for Tx and Rx.
| minItems: 1
| maxItems: 40
| dma-names:
| items:
| pattern: "^[rt]x(1[0-9]|[1-9]|20)$"
| description:
| Should be "rx1", "rx2" ... "rx20" for DMA Rx channel
| Should be "tx1", "tx2" ... "tx20" for DMA Tx channel
| minItems: 1
| maxItems: 40
|
| required:
| - compatible
| - reg
| - dmas
| - dma-names
|
| additionalProperties: false
|
| examples:
| - |
| admaif@702d0000 {
| compatible = "nvidia,tegra210-admaif";
| reg = <0x702d0000 0x800>;
| dmas = <&adma 1>, <&adma 1>,
| <&adma 2>, <&adma 2>,
| <&adma 3>, <&adma 3>,
| <&adma 4>, <&adma 4>,
| <&adma 5>, <&adma 5>,
| <&adma 6>, <&adma 6>,
| <&adma 7>, <&adma 7>,
| <&adma 8>, <&adma 8>,
| <&adma 9>, <&adma 9>,
| <&adma 10>, <&adma 10>;
| dma-names = "rx1", "tx1",
| "rx2", "tx2",
| "rx3", "tx3",
| "rx4", "tx4",
| "rx5", "tx5",
| "rx6", "tx6",
| "rx7", "tx7",
| "rx8", "tx8",
| "rx9", "tx9",
| "rx10", "tx10";
| };
|
| ...
|
|
