ASoC: omap-pcm: Select sDMA synchronization based on packet_size (e512589c) · Commits · 戴 / test

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>

sound/soc/omap/omap-pcm.c

+6 −1

Original line number	Diff line number	Diff line
		@@ -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;

Admin message