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| author | Peter Ujfalusi <peter.ujfalusi@linux.intel.com> | 2022-02-10 18:05:22 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-02-10 18:19:07 +0300 |
| commit | 1069967afe1e6b728061682ff99ec534a55a5613 (patch) | |
| tree | e74fea95a48d5ae1cbfeef8993a17f4c2fb1fcb4 /sound/soc/sof/sof-client.c | |
| parent | 6955d9512d0ea814f1c2761bef7ad7b3cedf4d68 (diff) | |
| download | linux-1069967afe1e6b728061682ff99ec534a55a5613.tar.xz | |
ASoC: SOF: sof-client: Add support for clients not managed by pm framework
Some SOF client can be of 'passive' type, meaning that they do not handle
PM framework callbacks by themselves but rely on the auxiliary driver's
suspend and resume callbacks to be notified about the core's suspend or
resume event.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220210150525.30756-7-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/sof-client.c')
| -rw-r--r-- | sound/soc/sof/sof-client.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-client.c b/sound/soc/sof/sof-client.c index 6f747d051b59..932bdea49c24 100644 --- a/sound/soc/sof/sof-client.c +++ b/sound/soc/sof/sof-client.c @@ -169,6 +169,52 @@ int sof_client_ipc_tx_message(struct sof_client_dev *cdev, void *ipc_msg, } EXPORT_SYMBOL_NS_GPL(sof_client_ipc_tx_message, SND_SOC_SOF_CLIENT); +int sof_suspend_clients(struct snd_sof_dev *sdev, pm_message_t state) +{ + struct auxiliary_driver *adrv; + struct sof_client_dev *cdev; + + mutex_lock(&sdev->ipc_client_mutex); + + list_for_each_entry(cdev, &sdev->ipc_client_list, list) { + /* Skip devices without loaded driver */ + if (!cdev->auxdev.dev.driver) + continue; + + adrv = to_auxiliary_drv(cdev->auxdev.dev.driver); + if (adrv->suspend) + adrv->suspend(&cdev->auxdev, state); + } + + mutex_unlock(&sdev->ipc_client_mutex); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(sof_suspend_clients, SND_SOC_SOF_CLIENT); + +int sof_resume_clients(struct snd_sof_dev *sdev) +{ + struct auxiliary_driver *adrv; + struct sof_client_dev *cdev; + + mutex_lock(&sdev->ipc_client_mutex); + + list_for_each_entry(cdev, &sdev->ipc_client_list, list) { + /* Skip devices without loaded driver */ + if (!cdev->auxdev.dev.driver) + continue; + + adrv = to_auxiliary_drv(cdev->auxdev.dev.driver); + if (adrv->resume) + adrv->resume(&cdev->auxdev); + } + + mutex_unlock(&sdev->ipc_client_mutex); + + return 0; +} +EXPORT_SYMBOL_NS_GPL(sof_resume_clients, SND_SOC_SOF_CLIENT); + struct dentry *sof_client_get_debugfs_root(struct sof_client_dev *cdev) { return cdev->sdev->debugfs_root; |