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-rw-r--r--include/sound/dmaengine_pcm.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 1c8f9e1ef2a5..67be2445941a 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -71,6 +71,7 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
* @slave_id: Slave requester id for the DMA channel.
* @filter_data: Custom DMA channel filter data, this will usually be used when
* requesting the DMA channel.
+ * @chan_name: Custom channel name to use when requesting DMA channel.
* @fifo_size: FIFO size of the DAI controller in bytes
* @flags: PCM_DAI flags, only SND_DMAENGINE_PCM_DAI_FLAG_PACK for now
*/
@@ -80,6 +81,7 @@ struct snd_dmaengine_dai_dma_data {
u32 maxburst;
unsigned int slave_id;
void *filter_data;
+ const char *chan_name;
unsigned int fifo_size;
unsigned int flags;
};
@@ -105,6 +107,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
* playback.
*/
#define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3)
+/*
+ * The PCM streams have custom channel names specified.
+ */
+#define SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME BIT(4)
/**
* struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM