iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ASoC: Intel: catpt: Wake up device before configuring SSP port

Browse Source 
catpt_dai_pcm_new() invoked during new PCM runtime creation configures
SSP by sending IPC to DSP firmware. For that to succeed device needs to
be up and running. While components default probing behavior -
snd_soc_catpt causing machine board module to load just after it - needs
no changes, machine board's module may be unloaded and re-loaded at a
different time e.g.: when catpt is already asleep.

Wake device explicitly in catpt_dai_pcm_new() to ensure communication is
established before sending any IPCs, enabling those advanced scenarios
in the process.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20201012103221.30759-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2020-10-12 12:32:20 +02:00 committed by Mark Brown
parent 1849a3872f
commit 1d159edf19
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
sound/soc/intel/catpt/pcm.c
View File

@ -667,7 +667,17 @@ static int catpt_dai_pcm_new(struct snd_soc_pcm_runtime *rtm,
break;
}
/* see if this is a new configuration */
if (!memcmp(&cdev->devfmt[devfmt.iface], &devfmt, sizeof(devfmt)))
return 0;
pm_runtime_get_sync(cdev->dev);
ret = catpt_ipc_set_device_format(cdev, &devfmt);
pm_runtime_mark_last_busy(cdev->dev);
pm_runtime_put_autosuspend(cdev->dev);
if (ret)
return CATPT_IPC_ERROR(ret);