1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/dma/nxp,lpc3220-dmamux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: DMA multiplexer for LPC32XX SoC (DMA request router)
8
9 maintainers:
10 - J.M.B. Downing <jonathan.downing@nautel.com>
11 - Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
12
13 allOf:
14 - $ref: dma-router.yaml#
15
16 properties:
17 compatible:
18 const: nxp,lpc3220-dmamux
19
20 reg:
21 maxItems: 1
22
23 dma-masters:
24 description: phandle to a dma node compatible with arm,pl080
25 maxItems: 1
26
27 "#dma-cells":
28 const: 3
29 description: |
30 First two cells same as for device pointed in dma-masters.
31 Third cell represents mux value for the request.
32
33 required:
34 - compatible
35 - reg
36 - dma-masters
37
38 additionalProperties: false
39
40 examples:
41 - |
42 dma-router@7c {
43 compatible = "nxp,lpc3220-dmamux";
44 reg = <0x7c 0x8>;
45 dma-masters = <&dma>;
46 #dma-cells = <3>;
47 };
48
49 ...
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