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Merge branch 'topic/edma' into for-linus

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This commit is contained in:
Vinod Koul 2016-07-16 20:10:03 +05:30
commit 5debef8a45
1 changed files with 9 additions and 6 deletions
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15
drivers/dma/edma.c
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@ -1112,14 +1112,17 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
edesc->absync = ret;
edesc->residue += sg_dma_len(sg);
/* If this is the last in a current SG set of transactions,
enable interrupts so that next set is processed */
if (!((i+1) % MAX_NR_SG))
edesc->pset[i].param.opt |= TCINTEN;
/* If this is the last set, enable completion interrupt flag */
if (i == sg_len - 1)
/* Enable completion interrupt */
edesc->pset[i].param.opt |= TCINTEN;
else if (!((i+1) % MAX_NR_SG))
/*
* Enable early completion interrupt for the
* intermediateset. In this case the driver will be
* notified when the paRAM set is submitted to TC. This
* will allow more time to set up the next set of slots.
*/
edesc->pset[i].param.opt |= (TCINTEN | TCCMODE);
}
edesc->residue_stat = edesc->residue;