0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/dma/st,stm32-dmamux.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: STMicroelectronics STM32 DMA MUX (DMA request router) bindings
0008
0009 maintainers:
0010 - Amelie Delaunay <amelie.delaunay@foss.st.com>
0011
0012 allOf:
0013 - $ref: "dma-router.yaml#"
0014
0015 properties:
0016 "#dma-cells":
0017 const: 3
0018
0019 compatible:
0020 const: st,stm32h7-dmamux
0021
0022 reg:
0023 maxItems: 1
0024
0025 clocks:
0026 maxItems: 1
0027
0028 resets:
0029 maxItems: 1
0030
0031 required:
0032 - compatible
0033 - reg
0034 - dma-masters
0035
0036 unevaluatedProperties: false
0037
0038 examples:
0039 - |
0040 #include <dt-bindings/interrupt-controller/arm-gic.h>
0041 #include <dt-bindings/clock/stm32mp1-clks.h>
0042 #include <dt-bindings/reset/stm32mp1-resets.h>
0043 dma-router@40020800 {
0044 compatible = "st,stm32h7-dmamux";
0045 reg = <0x40020800 0x3c>;
0046 #dma-cells = <3>;
0047 dma-requests = <128>;
0048 dma-channels = <16>;
0049 dma-masters = <&dma1>, <&dma2>;
0050 clocks = <&timer_clk>;
0051 };
0052
0053 ...
