From: Rander Wang rander.wang@intel.com
When the playback & capture streams are stopped simultaneously, the SOF PCI device will remain pm_runtime active. The root-cause is a race condition with two threads reaching the trigger function at the same time. They see another stream is active so the dapm pin is not disabled, so the codec remains active as well as the parent PCI device.
For max98373, the capture stream provides feedback when playback is working and it is unused when playback is stopped. So the dapm pin should be set only when playback is active.
Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Signed-off-by: Rander Wang rander.wang@intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/intel/boards/sof_maxim_common.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/sound/soc/intel/boards/sof_maxim_common.c b/sound/soc/intel/boards/sof_maxim_common.c index 1a6961592029..b6e63ea13d64 100644 --- a/sound/soc/intel/boards/sof_maxim_common.c +++ b/sound/soc/intel/boards/sof_maxim_common.c @@ -66,6 +66,10 @@ int max98373_trigger(struct snd_pcm_substream *substream, int cmd) int j; int ret = 0;
+ /* set spk pin by playback only */ + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + return 0; + for_each_rtd_codec_dais(rtd, j, codec_dai) { struct snd_soc_component *component = codec_dai->component; struct snd_soc_dapm_context *dapm = @@ -86,9 +90,6 @@ int max98373_trigger(struct snd_pcm_substream *substream, int cmd) case SNDRV_PCM_TRIGGER_STOP: case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: - /* Make sure no streams are active before disable pin */ - if (snd_soc_dai_active(codec_dai) != 1) - break; ret = snd_soc_dapm_disable_pin(dapm, pin_name); if (!ret) snd_soc_dapm_sync(dapm);