diff options
| author |   Eric Long <eric.long@spreadtrum.com> | 2018-05-23 17:31:11 +0800 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2018-05-29 10:15:33 +0530 |
| commit | ca1b7d3daff43a269fb7a0479055ac5b741638d8 (patch) | |
| tree | 48bf81c31fea321429c692e321d26e41449e978c /include/linux/dma | |
| parent | dmaengine: sprd: Optimize the sprd_dma_prep_dma_memcpy() (diff) | |
| download | wireguard-linux-ca1b7d3daff43a269fb7a0479055ac5b741638d8.tar.xz wireguard-linux-ca1b7d3daff43a269fb7a0479055ac5b741638d8.zip | |
dmaengine: sprd: Add Spreadtrum DMA configuration
This patch adds the 'device_config' and 'device_prep_slave_sg' interfaces
for users to configure DMA, as well as adding one 'struct sprd_dma_config'
structure to save Spreadtrum DMA configuration for each DMA channel.
Signed-off-by: Eric Long <eric.long@spreadtrum.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/linux/dma')
| -rw-r--r-- | include/linux/dma/sprd-dma.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/dma/sprd-dma.h b/include/linux/dma/sprd-dma.h index c545162e725b..b0115e340fbc 100644 --- a/include/linux/dma/sprd-dma.h +++ b/include/linux/dma/sprd-dma.h @@ -3,6 +3,10 @@ #ifndef _SPRD_DMA_H_ #define _SPRD_DMA_H_ +#define SPRD_DMA_REQ_SHIFT 16 +#define SPRD_DMA_FLAGS(req_mode, int_type) \ + ((req_mode) << SPRD_DMA_REQ_SHIFT | (int_type)) + /* * enum sprd_dma_req_mode: define the DMA request mode * @SPRD_DMA_FRAG_REQ: fragment request mode |