AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-28 09:17:47 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

ASoC: Intel: tgl_max98373: fix a runtime pm issue in multi-thread case

Browse Source 
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>
Link: https://lore.kernel.org/r/20200821195603.215535-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Rander Wang 2020-08-21 14:55:53 -05:00 committed by Mark Brown
parent 44751fc5f0
commit e300486ad9
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
sound/soc/intel/boards/sof_maxim_common.c
View File

@ -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);