summaryrefslogtreecommitdiffstats
path: root/sound/soc
diff options
context:
space:
mode:
authorPeter Ujfalusi <peter.ujfalusi@ti.com>2012-09-14 14:05:50 +0200
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-09-22 17:12:57 +0200
commite512589c17572e7498693a3e05eefa44e622f62b (patch)
treedd09673eda46ed03dbb4cf00394789e5a45852b4 /sound/soc
parentASoC: omap-mcbsp: Use sDMA packet mode instead of frame mode (diff)
downloadlinux-e512589c17572e7498693a3e05eefa44e622f62b.tar.xz
linux-e512589c17572e7498693a3e05eefa44e622f62b.zip
ASoC: omap-pcm: Select sDMA synchronization based on packet_size
Since we only have element or packet synchronization we can use the dma_data->packet_size to select the desired mode: if packet_size is 0 we use ELEMENT mode if packet_size is not 0 we use PACKET mode for sDMA synchronization. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/omap/omap-pcm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index f0feb06615f8..02eeb2e7ceda 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -165,7 +165,12 @@ static int omap_pcm_prepare(struct snd_pcm_substream *substream)
memset(&dma_params, 0, sizeof(dma_params));
dma_params.data_type = dma_data->data_type;
dma_params.trigger = dma_data->dma_req;
- dma_params.sync_mode = dma_data->sync_mode;
+
+ if (dma_data->packet_size)
+ dma_params.sync_mode = OMAP_DMA_SYNC_PACKET;
+ else
+ dma_params.sync_mode = OMAP_DMA_SYNC_ELEMENT;
+
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
dma_params.src_amode = OMAP_DMA_AMODE_POST_INC;
dma_params.dst_amode = OMAP_DMA_AMODE_CONSTANT;