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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/dma/loongson,ls2x-apbdma.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/dma/loongson,ls2x-apbdma.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Loongson LS2X APB DMA controller

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description:

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  The Loongson LS2X APB DMA controller is used for transferring data

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  between system memory and the peripherals on the APB bus.

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maintainers:

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  - Binbin Zhou <zhoubinbin@loongson.cn>

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allOf:

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  - $ref: dma-controller.yaml#

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properties:

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  compatible:

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    oneOf:

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      - const: loongson,ls2k1000-apbdma

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      - items:

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          - const: loongson,ls2k0500-apbdma

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          - const: loongson,ls2k1000-apbdma

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  reg:

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    maxItems: 1

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  interrupts:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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  '#dma-cells':

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    const: 1

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required:

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  - compatible

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  - reg

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  - interrupts

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  - clocks

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  - '#dma-cells'

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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    #include <dt-bindings/clock/loongson,ls2k-clk.h>

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    dma-controller@1fe00c00 {

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        compatible = "loongson,ls2k1000-apbdma";

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        reg = <0x1fe00c00 0x8>;

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        interrupt-parent = <&liointc1>;

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        interrupts = <12 IRQ_TYPE_LEVEL_HIGH>;

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        clocks = <&clk LOONGSON2_APB_CLK>;

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        #dma-cells = <1>;

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    };

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...

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