diff options
Diffstat (limited to 'sound/soc/sof/intel/hda-stream.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-stream.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index a3f7c91469ec..ff6ab0c45d8e 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -438,6 +438,26 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, return ret; } +int hda_dsp_stream_hw_free(struct snd_sof_dev *sdev, + struct snd_pcm_substream *substream) +{ + struct hdac_stream *stream = substream->runtime->private_data; + struct hdac_ext_stream *link_dev = container_of(stream, + struct hdac_ext_stream, + hstream); + struct hdac_bus *bus = sof_to_bus(sdev); + u32 mask = 0x1 << stream->index; + + spin_lock(&bus->reg_lock); + /* couple host and link DMA if link DMA channel is idle */ + if (!link_dev->link_locked) + snd_sof_dsp_update_bits(sdev, HDA_DSP_PP_BAR, + SOF_HDA_REG_PP_PPCTL, mask, 0); + spin_unlock(&bus->reg_lock); + + return 0; +} + irqreturn_t hda_dsp_stream_interrupt(int irq, void *context) { struct hdac_bus *bus = context; |