| # Copyright (c) 2019, Song Qiang <songqiang1304521@gmail.com> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: STM32 DMA controller |
| |
| compatible: "st,stm32-dma" |
| |
| include: dma-controller.yaml |
| |
| properties: |
| reg: |
| required: true |
| |
| interrupts: |
| required: true |
| |
| st,mem2mem: |
| type: boolean |
| description: If the DMA controller V1 supports memory to memory transfer |
| |
| "#dma-cells": |
| const: 4 |
| |
| # Parameter syntax of stm32 follows the dma client dts syntax |
| # in the Linux kernel declared in |
| # https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/plain/Bindings/dma/stm32-dma.txt |
| # |
| # channel: DMA channel |
| # slot: DMA stream of the DMA channel for DMA V1 or for DMA V2 with MUX peripheral request else NA |
| # channel-config: configuration of the selected DMA channel |
| # features: fifo threshold if relevant for DMA V1 or TBD for DMA V2 |
| |
| dma-cells: |
| - channel |
| - slot |
| - channel-config |
| - features |
