diff options
Diffstat (limited to 'sound/soc/sof/intel/hda-dai.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-dai.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index c270fd7a0878..a514f9cf5c9a 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -75,7 +75,7 @@ static struct hdac_ext_stream * hda_stream = hstream_to_sof_hda_stream(hstream); - /* check if available */ + /* check if link is available */ if (!hstream->link_locked) { if (stream->opened) { /* @@ -89,6 +89,12 @@ static struct hdac_ext_stream * } } else { res = hstream; + + /* + * This must be a hostless stream. + * So reserve the host DMA channel. + */ + hda_stream->host_reserved = 1; break; } } @@ -368,6 +374,9 @@ static int hda_link_hw_free(struct snd_pcm_substream *substream, snd_hdac_ext_stream_release(link_dev, HDAC_EXT_STREAM_TYPE_LINK); link_dev->link_prepared = 0; + /* free the host DMA channel reserved by hostless streams */ + hda_stream->host_reserved = 0; + return 0; } |