Commit 32ce1088 authored Jan 29, 2020 by Amelie Delaunay Committed by Vinod Koul Feb 25, 2020

dmaengine: stm32-dma: add copy_align constraint



This patch adds copy_align property in accordance with hardware
restriction.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200129153628.29329-7-amelie.delaunay@st.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>

parent d7a9e426

drivers/dma/stm32-dma.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1345,6 +1345,7 @@ static int stm32_dma_probe(struct platform_device *pdev)
		BIT(DMA_SLAVE_BUSWIDTH_4_BYTES);
		dd->directions = BIT(DMA_DEV_TO_MEM) \| BIT(DMA_MEM_TO_DEV);
		dd->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
		dd->copy_align = DMAENGINE_ALIGN_32_BYTES;
		dd->max_burst = STM32_DMA_MAX_BURST;
		dd->descriptor_reuse = true;
		dd->dev = &pdev->dev;

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