diff options
| author | Gustavo Pimentel <Gustavo.Pimentel@synopsys.com> | 2021-02-18 22:04:00 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-03-16 20:28:53 +0300 |
| commit | 85e7518f42c85d339fac0af9f9d025d7e6717f2d (patch) | |
| tree | f2b18f43c645e4b5a3bbf3cc2e44c0975536c510 /drivers/dma/dw-edma/dw-edma-core.h | |
| parent | 1aef6ffe999eec7b7fdcfad7ffef9c157727ffcb (diff) | |
| download | linux-85e7518f42c85d339fac0af9f9d025d7e6717f2d.tar.xz | |
dmaengine: dw-edma: Add device_prep_interleave_dma() support
Add device_prep_interleave_dma() support to Synopsys DMA driver.
This feature implements a similar data transfer mechanism to the
scatter-gather implementation.
Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Link: https://lore.kernel.org/r/73dc36264910654e266ae25814d892a0476e4427.1613674948.git.gustavo.pimentel@synopsys.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/dw-edma/dw-edma-core.h')
| -rw-r--r-- | drivers/dma/dw-edma/dw-edma-core.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/dma/dw-edma/dw-edma-core.h b/drivers/dma/dw-edma/dw-edma-core.h index 3f9593ede881..f72ebaa118af 100644 --- a/drivers/dma/dw-edma/dw-edma-core.h +++ b/drivers/dma/dw-edma/dw-edma-core.h @@ -39,6 +39,12 @@ enum dw_edma_status { EDMA_ST_BUSY }; +enum dw_edma_xfer_type { + EDMA_XFER_SCATTER_GATHER = 0, + EDMA_XFER_CYCLIC, + EDMA_XFER_INTERLEAVED +}; + struct dw_edma_chan; struct dw_edma_chunk; @@ -146,12 +152,13 @@ struct dw_edma_cyclic { struct dw_edma_transfer { struct dma_chan *dchan; union dw_edma_xfer { - struct dw_edma_sg sg; - struct dw_edma_cyclic cyclic; + struct dw_edma_sg sg; + struct dw_edma_cyclic cyclic; + struct dma_interleaved_template *il; } xfer; enum dma_transfer_direction direction; unsigned long flags; - bool cyclic; + enum dw_edma_xfer_type type; }; static inline |