diff options
Diffstat (limited to 'sound/soc/sof/intel/hda-dai.c')
| -rw-r--r-- | sound/soc/sof/intel/hda-dai.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-dai.c b/sound/soc/sof/intel/hda-dai.c index 0521cb755a8a..c1ff7145745b 100644 --- a/sound/soc/sof/intel/hda-dai.c +++ b/sound/soc/sof/intel/hda-dai.c @@ -448,6 +448,45 @@ static const struct snd_soc_dai_ops ipc3_hda_dai_ops = { .prepare = ipc3_hda_dai_prepare, }; +static int hda_dai_suspend(struct hdac_bus *bus) +{ + struct snd_soc_pcm_runtime *rtd; + struct hdac_ext_stream *hext_stream; + struct hdac_ext_link *link; + struct hdac_stream *s; + const char *name; + int stream_tag; + + /* set internal flag for BE */ + list_for_each_entry(s, &bus->stream_list, list) { + hext_stream = stream_to_hdac_ext_stream(s); + + /* + * clear stream. This should already be taken care for running + * streams when the SUSPEND trigger is called. But paused + * streams do not get suspended, so this needs to be done + * explicitly during suspend. + */ + if (hext_stream->link_substream) { + rtd = asoc_substream_to_rtd(hext_stream->link_substream); + name = asoc_rtd_to_codec(rtd, 0)->component->name; + link = snd_hdac_ext_bus_get_link(bus, name); + if (!link) + return -EINVAL; + + hext_stream->link_prepared = 0; + + if (hdac_stream(hext_stream)->direction == + SNDRV_PCM_STREAM_CAPTURE) + continue; + + stream_tag = hdac_stream(hext_stream)->stream_tag; + snd_hdac_ext_link_clear_stream_id(link, stream_tag); + } + } + + return 0; +} #endif /* only one flag used so far to harden hw_params/hw_free/trigger/prepare */ @@ -733,3 +772,22 @@ struct snd_soc_dai_driver skl_dai[] = { }, #endif }; + +int hda_dsp_dais_suspend(struct snd_sof_dev *sdev) +{ + /* + * In the corner case where a SUSPEND happens during a PAUSE, the ALSA core + * does not throw the TRIGGER_SUSPEND. This leaves the DAIs in an unbalanced state. + * Since the component suspend is called last, we can trap this corner case + * and force the DAIs to release their resources. + */ +#if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA) + int ret; + + ret = hda_dai_suspend(sof_to_bus(sdev)); + if (ret < 0) + return ret; +#endif + + return 0; +} |