| Message ID | 1405513761-23739-3-git-send-email-peter.ujfalusi@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index d5017abcf7cb..69f1f5250120 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.c @@ -723,10 +723,10 @@ static struct dma_async_tx_descriptor *edma_prep_dma_cyclic( edesc->absync = ret; /* - * Enable interrupts for every period because callback - * has to be called for every period. + * Enable period interrupt only if it is requested */ - edesc->pset[i].param.opt |= TCINTEN; + if (tx_flags & DMA_PREP_INTERRUPT) + edesc->pset[i].param.opt |= TCINTEN; } /* Place the cyclic channel to highest priority queue */
If the client (audio) does not request interrupts for every period we can disable them. With updated audio driver stack we can play audio w/o the need to process any edma interrupts. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> --- drivers/dma/edma.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)