hc
2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/dma/allwinner,sun4i-a10-dma.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
 
title: Allwinner A10 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: 2
    description:
      The first cell is either 0 or 1, the former to use the normal
      DMA, 1 for dedicated DMA. The second cell is the request line
      number.
 
  compatible:
    const: allwinner,sun4i-a10-dma
 
  reg:
    maxItems: 1
 
  interrupts:
    maxItems: 1
 
  clocks:
    maxItems: 1
 
required:
  - "#dma-cells"
  - compatible
  - reg
  - interrupts
  - clocks
 
additionalProperties: false
 
examples:
  - |
    dma: dma-controller@1c02000 {
        compatible = "allwinner,sun4i-a10-dma";
        reg = <0x01c02000 0x1000>;
        interrupts = <27>;
        clocks = <&ahb_gates 6>;
        #dma-cells = <2>;
    };
 
...