1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/dma/stm32/st,stm32-dmamux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: STMicroelectronics STM32 DMA MUX (DMA request router)
8
9 maintainers:
10 - Amelie Delaunay <amelie.delaunay@foss.st.com>
11
12 allOf:
13 - $ref: /schemas/dma/dma-router.yaml#
14
15 properties:
16 "#dma-cells":
17 const: 3
18
19 compatible:
20 const: st,stm32h7-dmamux
21
22 reg:
23 maxItems: 1
24
25 clocks:
26 maxItems: 1
27
28 resets:
29 maxItems: 1
30
31 access-controllers:
32 minItems: 1
33 maxItems: 2
34
35 required:
36 - compatible
37 - reg
38 - dma-masters
39
40 unevaluatedProperties: false
41
42 examples:
43 - |
44 #include <dt-bindings/interrupt-controller/arm-gic.h>
45 #include <dt-bindings/clock/stm32mp1-clks.h>
46 #include <dt-bindings/reset/stm32mp1-resets.h>
47 dma-router@40020800 {
48 compatible = "st,stm32h7-dmamux";
49 reg = <0x40020800 0x3c>;
50 #dma-cells = <3>;
51 dma-requests = <128>;
52 dma-channels = <16>;
53 dma-masters = <&dma1>, <&dma2>;
54 clocks = <&timer_clk>;
55 };
56
57 ...
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