[5/8] dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit
diff mbox series

Message ID 20200129153628.29329-6-amelie.delaunay@st.com
State Accepted
Headers show
  • STM32 DMA driver fixes and improvements
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Commit Message

Amelie DELAUNAY Jan. 29, 2020, 3:36 p.m. UTC
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>
 drivers/dma/stm32-dma.c | 2 ++
 1 file changed, 2 insertions(+)

diff mbox series

diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index 25f7281932bd..b7e18cfcd439 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -1323,6 +1323,8 @@  static int stm32_dma_probe(struct platform_device *pdev)
+	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);