[PATCH 5/8] dmaengine: stm32-dma: use dma_set_max_seg_size to set the sg limit
From: Amelie Delaunay <hidden>
Date: 2020-01-29 15:37:07
Also in:
linux-arm-kernel, lkml
Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
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 <redacted> Signed-off-by: Amelie Delaunay <redacted> --- drivers/dma/stm32-dma.c | 2 ++ 1 file changed, 2 insertions(+)
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) 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);
--
2.17.1