xref: /linux/Documentation/devicetree/bindings/dma/spacemit,k1-pdma.yaml (revision e4c0fdd5af4c590ca07880b97e286c6532437658) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/spacemit,k1-pdma.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: SpacemiT K1 PDMA Controller
8
9maintainers:
10  - Guodong Xu <guodong@riscstar.com>
11
12allOf:
13  - $ref: dma-controller.yaml#
14
15properties:
16  compatible:
17    const: spacemit,k1-pdma
18
19  reg:
20    maxItems: 1
21
22  interrupts:
23    description: Shared interrupt for all DMA channels
24    maxItems: 1
25
26  clocks:
27    maxItems: 1
28
29  resets:
30    maxItems: 1
31
32  dma-channels:
33    maximum: 16
34
35  '#dma-cells':
36    const: 1
37    description:
38      The DMA request number for the peripheral device.
39
40required:
41  - compatible
42  - reg
43  - interrupts
44  - clocks
45  - resets
46  - dma-channels
47  - '#dma-cells'
48
49unevaluatedProperties: false
50
51examples:
52  - |
53    #include <dt-bindings/clock/spacemit,k1-syscon.h>
54
55    soc {
56        #address-cells = <2>;
57        #size-cells = <2>;
58
59        dma-controller@d4000000 {
60            compatible = "spacemit,k1-pdma";
61            reg = <0x0 0xd4000000 0x0 0x4000>;
62            interrupts = <72>;
63            clocks = <&syscon_apmu CLK_DMA>;
64            resets = <&syscon_apmu RESET_DMA>;
65            dma-channels = <16>;
66            #dma-cells = <1>;
67        };
68    };
69