X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=sound%2Fsoc%2Fsoc-dmaengine-pcm.c;h=bbc125748a3843decc6ffd04d171fcf6f6b9fc5c;hb=1e096209da0c2c8ca8462842a7a2e5928d3e82c3;hp=5df529eda251abdda685de949747050cc3e066a0;hpb=bada1c5b49e4a66014f919b4bd95fca9dd3d04bd;p=~andy%2Flinux

diff --git a/sound/soc/soc-dmaengine-pcm.c b/sound/soc/soc-dmaengine-pcm.c
index 5df529eda25..bbc125748a3 100644
--- a/sound/soc/soc-dmaengine-pcm.c
+++ b/sound/soc/soc-dmaengine-pcm.c
@@ -140,14 +140,18 @@ static int dmaengine_pcm_prepare_and_submit(struct snd_pcm_substream *substream)
 	struct dma_chan *chan = prtd->dma_chan;
 	struct dma_async_tx_descriptor *desc;
 	enum dma_transfer_direction direction;
+	unsigned long flags = DMA_CTRL_ACK;
 
 	direction = snd_pcm_substream_to_dma_direction(substream);
 
+	if (!substream->runtime->no_period_wakeup)
+		flags |= DMA_PREP_INTERRUPT;
+
 	prtd->pos = 0;
 	desc = dmaengine_prep_dma_cyclic(chan,
 		substream->runtime->dma_addr,
 		snd_pcm_lib_buffer_bytes(substream),
-		snd_pcm_lib_period_bytes(substream), direction);
+		snd_pcm_lib_period_bytes(substream), direction, flags);
 
 	if (!desc)
 		return -ENOMEM;