xref: /linux/Documentation/devicetree/bindings/dma/fsl,imx-dma.yaml (revision 3a39d672e7f48b8d6b91a09afa4b55352773b4b5) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/fsl,imx-dma.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale Direct Memory Access (DMA) Controller for i.MX
8
9maintainers:
10  - Animesh Agarwal <animeshagarwal28@gmail.com>
11
12allOf:
13  - $ref: dma-controller.yaml#
14
15properties:
16  compatible:
17    enum:
18      - fsl,imx1-dma
19      - fsl,imx21-dma
20      - fsl,imx27-dma
21
22  reg:
23    maxItems: 1
24
25  interrupts:
26    items:
27      - description: DMA complete interrupt
28      - description: DMA Error interrupt
29    minItems: 1
30
31  clocks:
32    maxItems: 2
33
34  clock-names:
35    items:
36      - const: ipg
37      - const: ahb
38
39  "#dma-cells":
40    const: 1
41
42  dma-channels:
43    const: 16
44
45  dma-requests:
46    description: Number of DMA requests supported.
47
48required:
49  - compatible
50  - reg
51  - interrupts
52  - "#dma-cells"
53  - clocks
54  - clock-names
55
56additionalProperties: false
57
58examples:
59  - |
60    #include <dt-bindings/clock/imx27-clock.h>
61
62    dma-controller@10001000 {
63      compatible = "fsl,imx27-dma";
64      reg = <0x10001000 0x1000>;
65      interrupts = <32 33>;
66      #dma-cells = <1>;
67      dma-channels = <16>;
68      clocks = <&clks IMX27_CLK_DMA_IPG_GATE>, <&clks IMX27_CLK_DMA_AHB_GATE>;
69      clock-names = "ipg", "ahb";
70    };
71