| # 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"; |
| }; |
| |
| ... |
