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| author | Mark Brown <broonie@kernel.org> | 2016-05-13 15:26:20 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-05-13 15:26:20 +0200 |
| commit | bf10262159cfd7ed76b777927e7cba628cea85ba (patch) | |
| tree | c5fdf9e4983ddcba733b313d7ba37ba05b948528 /sound/core | |
| parent | Merge remote-tracking branch 'asoc/topic/dapm' into asoc-next (diff) | |
| parent | ASoC: dmaengine_pcm: Add support for packed transfers (diff) | |
| download | linux-bf10262159cfd7ed76b777927e7cba628cea85ba.tar.xz linux-bf10262159cfd7ed76b777927e7cba628cea85ba.zip | |
Merge remote-tracking branch 'asoc/topic/dmaengine' into asoc-next
Diffstat (limited to 'sound/core')
| -rw-r--r-- | sound/core/pcm_dmaengine.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c index 697c166acf05..8eb58c709b14 100644 --- a/sound/core/pcm_dmaengine.c +++ b/sound/core/pcm_dmaengine.c @@ -106,8 +106,9 @@ EXPORT_SYMBOL_GPL(snd_hwparams_to_dma_slave_config); * direction of the substream. If the substream is a playback stream the dst * fields will be initialized, if it is a capture stream the src fields will be * initialized. The {dst,src}_addr_width field will only be initialized if the - * addr_width field of the DAI DMA data struct is not equal to - * DMA_SLAVE_BUSWIDTH_UNDEFINED. + * SND_DMAENGINE_PCM_DAI_FLAG_PACK flag is set or if the addr_width field of + * the DAI DMA data struct is not equal to DMA_SLAVE_BUSWIDTH_UNDEFINED. If + * both conditions are met the latter takes priority. */ void snd_dmaengine_pcm_set_config_from_dai_data( const struct snd_pcm_substream *substream, @@ -117,11 +118,17 @@ void snd_dmaengine_pcm_set_config_from_dai_data( if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { slave_config->dst_addr = dma_data->addr; slave_config->dst_maxburst = dma_data->maxburst; + if (dma_data->flags & SND_DMAENGINE_PCM_DAI_FLAG_PACK) + slave_config->dst_addr_width = + DMA_SLAVE_BUSWIDTH_UNDEFINED; if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) slave_config->dst_addr_width = dma_data->addr_width; } else { slave_config->src_addr = dma_data->addr; slave_config->src_maxburst = dma_data->maxburst; + if (dma_data->flags & SND_DMAENGINE_PCM_DAI_FLAG_PACK) + slave_config->src_addr_width = + DMA_SLAVE_BUSWIDTH_UNDEFINED; if (dma_data->addr_width != DMA_SLAVE_BUSWIDTH_UNDEFINED) slave_config->src_addr_width = dma_data->addr_width; } |