[6/8] dmaengine: stm32-dma: add copy_align constraint
diff mbox series

Message ID 20200129153628.29329-7-amelie.delaunay@st.com
State Accepted
Headers show
Series
  • STM32 DMA driver fixes and improvements
Related show

Commit Message

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

Patch
diff mbox series

diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index b7e18cfcd439..01a2374ae03a 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -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;