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# 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 <maxime.ripard@bootlin.com>
allOf:
- $ref: "dma-controller.yaml#"
properties:
"#dma-cells":
const: 1
description: The cell is the request line number.
compatible:
enum:
- allwinner,sun50i-a64-dma
- allwinner,sun50i-h6-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
# FIXME: We should set it, but it would report all the generic
# properties as additional properties.
# additionalProperties: 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>;
};
...
|
