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authorM'boumba Cedric Madianga <cedric.madianga@gmail.com>2016-12-13 16:40:51 +0300
committerVinod Koul <vinod.koul@intel.com>2017-01-03 06:53:23 +0300
commit276b0046ff7765c1d42ed48c67b4b5f3b50ea461 (patch)
tree82e3cc1c95c60eebcd71de9d036e821ae9b64c2a /drivers/dma
parentdc808675104b920f2be1ac4bf1e9aa57680f0699 (diff)
downloadlinux-276b0046ff7765c1d42ed48c67b4b5f3b50ea461.tar.xz
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 <cedric.madianga@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/stm32-dma.c2
1 files changed, 2 insertions, 0 deletions
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);