From: Peter Ujfalusi Date: Fri, 14 Sep 2012 12:05:50 +0000 (+0300) Subject: ASoC: omap-pcm: Select sDMA synchronization based on packet_size X-Git-Tag: firefly_0821_release~3680^2~1589^2~52^2~55 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e512589c17572e7498693a3e05eefa44e622f62b;hp=dffb360e64968b95a0a0221ca52234a28cc049c9;p=firefly-linux-kernel-4.4.55.git 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 Tested-by: Janusz Krzysztofik Signed-off-by: Mark Brown --- 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;