1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/dma/renesas 4 $id: http://devicetree.org/schemas/dma/renesas,rzn1-dmamux.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Renesas RZ/N1 DMA mux 7 title: Renesas RZ/N1 DMA mux
8 8
9 maintainers: 9 maintainers:
10 - Miquel Raynal <miquel.raynal@bootlin.com> 10 - Miquel Raynal <miquel.raynal@bootlin.com>
11 11
12 allOf: 12 allOf:
13 - $ref: dma-router.yaml# 13 - $ref: dma-router.yaml#
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 const: renesas,rzn1-dmamux 17 const: renesas,rzn1-dmamux
18 18
19 reg: 19 reg:
20 maxItems: 1 20 maxItems: 1
21 description: DMA mux first register offset 21 description: DMA mux first register offset within the system control parent.
22 22
23 '#dma-cells': 23 '#dma-cells':
24 const: 6 24 const: 6
25 description: 25 description:
26 The first four cells are dedicated to th 26 The first four cells are dedicated to the master DMA controller. The fifth
27 cell gives the DMA mux bit index that mu 27 cell gives the DMA mux bit index that must be set starting from 0. The
28 sixth cell gives the binary value that m 28 sixth cell gives the binary value that must be written there, ie. 0 or 1.
29 29
30 dma-masters: 30 dma-masters:
31 minItems: 1 31 minItems: 1
32 maxItems: 2 32 maxItems: 2
33 33
34 dma-requests: 34 dma-requests:
35 const: 32 35 const: 32
36 36
37 required: 37 required:
38 - reg 38 - reg
39 - dma-requests 39 - dma-requests
40 40
41 additionalProperties: false 41 additionalProperties: false
42 42
43 examples: 43 examples:
44 - | 44 - |
45 dma-router@a0 { 45 dma-router@a0 {
46 compatible = "renesas,rzn1-dmamux"; 46 compatible = "renesas,rzn1-dmamux";
47 reg = <0xa0 4>; 47 reg = <0xa0 4>;
48 #dma-cells = <6>; 48 #dma-cells = <6>;
49 dma-masters = <&dma0 &dma1>; 49 dma-masters = <&dma0 &dma1>;
50 dma-requests = <32>; 50 dma-requests = <32>;
51 }; 51 };
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