From d7a9e42609cab42bf748a66756270652187df084 Mon Sep 17 00:00:00 2001 From: Amelie Delaunay Date: Wed, 29 Jan 2020 16:36:25 +0100 Subject: 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 Signed-off-by: Amelie Delaunay Link: https://lore.kernel.org/r/20200129153628.29329-6-amelie.delaunay@st.com Signed-off-by: Vinod Koul --- drivers/dma/stm32-dma.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') 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); -- cgit v1.2.3