From 276b0046ff7765c1d42ed48c67b4b5f3b50ea461 Mon Sep 17 00:00:00 2001 From: M'boumba Cedric Madianga Date: Tue, 13 Dec 2016 14:40:51 +0100 Subject: dmaengine: stm32-dma: Add max_burst support This patch sets the max_burst value supported by the STM32 DMA Signed-off-by: M'boumba Cedric Madianga Signed-off-by: Vinod Koul --- drivers/dma/stm32-dma.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/dma') diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c index 53b2ee79cc0e..fc9738e0f3a3 100644 --- a/drivers/dma/stm32-dma.c +++ b/drivers/dma/stm32-dma.c @@ -114,6 +114,7 @@ #define STM32_DMA_MAX_CHANNELS 0x08 #define STM32_DMA_MAX_REQUEST_ID 0x08 #define STM32_DMA_MAX_DATA_PARAM 0x03 +#define STM32_DMA_MAX_BURST 16 enum stm32_dma_width { STM32_DMA_BYTE, @@ -1082,6 +1083,7 @@ 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->max_burst = STM32_DMA_MAX_BURST; dd->dev = &pdev->dev; INIT_LIST_HEAD(&dd->channels); -- cgit