| # SPDX-License-Identifier: GPL-2.0 |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Allwinner A64 DMA Controller Device Tree Bindings |
| |
| maintainers: |
| - Chen-Yu Tsai <wens@csie.org> |
| - Maxime Ripard <mripard@kernel.org> |
| |
| allOf: |
| - $ref: "dma-controller.yaml#" |
| |
| properties: |
| "#dma-cells": |
| const: 1 |
| description: The cell is the request line number. |
| |
| compatible: |
| oneOf: |
| - const: allwinner,sun50i-a64-dma |
| - const: allwinner,sun50i-h6-dma |
| - items: |
| - const: allwinner,sun8i-r40-dma |
| - const: allwinner,sun50i-a64-dma |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| clocks: |
| minItems: 1 |
| maxItems: 2 |
| |
| clock-names: |
| items: |
| - const: bus |
| - const: mbus |
| |
| resets: |
| maxItems: 1 |
| |
| required: |
| - "#dma-cells" |
| - compatible |
| - reg |
| - interrupts |
| - clocks |
| - resets |
| - dma-channels |
| |
| if: |
| properties: |
| compatible: |
| const: allwinner,sun50i-h6-dma |
| |
| then: |
| properties: |
| clocks: |
| maxItems: 2 |
| |
| required: |
| - clock-names |
| |
| else: |
| properties: |
| clocks: |
| maxItems: 1 |
| |
| unevaluatedProperties: false |
| |
| examples: |
| - | |
| dma: dma-controller@1c02000 { |
| compatible = "allwinner,sun50i-a64-dma"; |
| reg = <0x01c02000 0x1000>; |
| interrupts = <0 50 4>; |
| clocks = <&ccu 30>; |
| dma-channels = <8>; |
| dma-requests = <27>; |
| resets = <&ccu 7>; |
| #dma-cells = <1>; |
| }; |
| |
| ... |
