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

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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>
This commit is contained in:
Amelie Delaunay 2020-01-29 16:36:25 +01:00 committed by Vinod Koul
parent 22a0bb297c
commit d7a9e42609
1 changed files with 2 additions and 0 deletions
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2
drivers/dma/stm32-dma.c
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@ -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);