xref: /linux/Documentation/devicetree/bindings/dma/st,stm32-dmamux.yaml (revision cbdb1f163af2bb90d01be1f0263df1d8d5c9d9d3) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/dma/st,stm32-dmamux.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: STMicroelectronics STM32 DMA MUX (DMA request router)
8
9maintainers:
10  - Amelie Delaunay <amelie.delaunay@foss.st.com>
11
12allOf:
13  - $ref: "dma-router.yaml#"
14
15properties:
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
31required:
32  - compatible
33  - reg
34  - dma-masters
35
36unevaluatedProperties: false
37
38examples:
39  - |
40    #include <dt-bindings/interrupt-controller/arm-gic.h>
41    #include <dt-bindings/clock/stm32mp1-clks.h>
42    #include <dt-bindings/reset/stm32mp1-resets.h>
43    dma-router@40020800 {
44      compatible = "st,stm32h7-dmamux";
45      reg = <0x40020800 0x3c>;
46      #dma-cells = <3>;
47      dma-requests = <128>;
48      dma-channels = <16>;
49      dma-masters = <&dma1>, <&dma2>;
50      clocks = <&timer_clk>;
51    };
52
53...
54