dmaengine: at_hdmac: fix buffer transfer size specification
Buffer transfer size is the number of transfers to be performed in relation with the width of the _source_ interface. So in the DMA_FROM_DEVICE case, it should be the register width that should be taken into account. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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@ -722,7 +722,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
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desc->lli.daddr = mem;
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desc->lli.ctrla = ctrla
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| ATC_DST_WIDTH(mem_width)
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| len >> mem_width;
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| len >> reg_width;
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desc->lli.ctrlb = ctrlb;
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if (!first) {
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