| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 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: 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 | required: |
| 32 | - compatible |
| 33 | - reg |
| 34 | - dma-masters |
| 35 | |
| 36 | unevaluatedProperties: false |
| 37 | |
| 38 | examples: |
| 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 | ... |