Commit 276b0046 authored by M'boumba Cedric Madianga's avatar M'boumba Cedric Madianga Committed by Vinod Koul
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dmaengine: stm32-dma: Add max_burst support 



This patch sets the max_burst value supported by the STM32 DMA

Signed-off-by: default avatarM'boumba Cedric Madianga <cedric.madianga@gmail.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent dc808675

drivers/dma/stm32-dma.c

+2 −0
Original line number Diff line number Diff line
@@ -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);