Messages in this thread Patch in this message |  | | From | Frank Li <> | | Date | Wed, 06 May 2026 16:44:16 -0400 | | Subject | [PATCH v4 4/9] dmaengine: dw-edma: Use new .device_prep_config_sg() callback |
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Use the new .device_prep_config_sg() callback to combine configuration and descriptor preparation.
No functional changes.
Tested-by: Niklas Cassel <cassel@kernel.org> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Signed-off-by: Frank Li <Frank.Li@nxp.com> --- change in v4 - drop context in callback. change in v3 - add Damien Le Moal review tag --- drivers/dma/dw-edma/dw-edma-core.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/dw-edma/dw-edma-core.c b/drivers/dma/dw-edma/dw-edma-core.c index c2feb3adc79fa94b016913443305b9fae9deef12..f7f58b0010e26b529ffb7382d5b166a703587c71 100644 --- a/drivers/dma/dw-edma/dw-edma-core.c +++ b/drivers/dma/dw-edma/dw-edma-core.c @@ -577,10 +577,11 @@ dw_edma_device_transfer(struct dw_edma_transfer *xfer) } static struct dma_async_tx_descriptor * -dw_edma_device_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl, - unsigned int len, - enum dma_transfer_direction direction, - unsigned long flags, void *context) +dw_edma_device_prep_config_sg(struct dma_chan *dchan, struct scatterlist *sgl, + unsigned int len, + enum dma_transfer_direction direction, + unsigned long flags, + struct dma_slave_config *config) { struct dw_edma_transfer xfer; @@ -591,6 +592,9 @@ dw_edma_device_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl, xfer.flags = flags; xfer.type = EDMA_XFER_SCATTER_GATHER; + if (config) + dw_edma_device_config(dchan, config); + return dw_edma_device_transfer(&xfer); } @@ -970,7 +974,7 @@ static int dw_edma_channel_setup(struct dw_edma *dw, u32 wr_alloc, u32 rd_alloc) dma->device_terminate_all = dw_edma_device_terminate_all; dma->device_issue_pending = dw_edma_device_issue_pending; dma->device_tx_status = dw_edma_device_tx_status; - dma->device_prep_slave_sg = dw_edma_device_prep_slave_sg; + dma->device_prep_config_sg = dw_edma_device_prep_config_sg; dma->device_prep_dma_cyclic = dw_edma_device_prep_dma_cyclic; dma->device_prep_interleaved_dma = dw_edma_device_prep_interleaved_dma; -- 2.43.0
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