diff options
| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2012-09-14 15:05:50 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-09-22 11:12:57 -0400 |
| commit | e512589c17572e7498693a3e05eefa44e622f62b (patch) | |
| tree | dd09673eda46ed03dbb4cf00394789e5a45852b4 /sound | |
| parent | ASoC: omap-mcbsp: Use sDMA packet mode instead of frame mode (diff) | |
| download | linux-dev-e512589c17572e7498693a3e05eefa44e622f62b.tar.xz linux-dev-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')
| -rw-r--r-- | sound/soc/omap/omap-pcm.c | 7 |
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; |