b7a3e7dc31
This patch introduces the periph to/from memory dma transfer define new values for dma cells on client side Signed-off-by: Francois Ramu <francois.ramu@st.com>
37 lines
956 B
YAML
37 lines
956 B
YAML
# Copyright (c) 2019, Song Qiang <songqiang1304521@gmail.com>
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# SPDX-License-Identifier: Apache-2.0
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description: STM32 DMA controller
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compatible: "st,stm32-dma"
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include: dma-controller.yaml
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properties:
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reg:
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required: true
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interrupts:
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required: true
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st,mem2mem:
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type: boolean
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description: If the DMA controller V1 supports memory to memory transfer
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"#dma-cells":
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const: 4
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# Parameter syntax of stm32 follows the dma client dts syntax
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# in the Linux kernel declared in
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# https://git.kernel.org/pub/scm/linux/kernel/git/devicetree/devicetree-rebasing.git/plain/Bindings/dma/stm32-dma.txt
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#
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# channel: DMA channel
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# slot: DMA stream of the DMA channel for DMA V1 or for DMA V2 with MUX peripheral request else NA
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# channel-config: configuration of the selected DMA channel
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# features: fifo threshold if relevant for DMA V1 or TBD for DMA V2
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dma-cells:
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- channel
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- slot
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- channel-config
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- features
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