Commit d7a9e426 authored Jan 29, 2020 by Amelie Delaunay Committed by Vinod Koul Feb 25, 2020

dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit



This patch adds dma_set_max_seg_size to define sg dma constraint.
This constraint may be taken into account by client to scatter/gather
its buffer.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20200129153628.29329-6-amelie.delaunay@st.com


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

parent 22a0bb29

drivers/dma/stm32-dma.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1323,6 +1323,8 @@ static int stm32_dma_probe(struct platform_device *pdev)
		reset_control_deassert(rst);
		}

		dma_set_max_seg_size(&pdev->dev, STM32_DMA_ALIGNED_MAX_DATA_ITEMS);

		dma_cap_set(DMA_SLAVE, dd->cap_mask);
		dma_cap_set(DMA_PRIVATE, dd->cap_mask);
		dma_cap_set(DMA_CYCLIC, dd->cap_mask);

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