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    Subject[PATCH v3 07/15] ASoC: omap-pcm: Select sDMA synchronization based on packet_size
    Date
    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>
    ---
    sound/soc/omap/omap-pcm.c | 7 ++++++-
    1 file changed, 6 insertions(+), 1 deletion(-)

    diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
    index f0feb06..02eeb2e 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;
    --
    1.7.12


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