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| author | Libin Yang <libin.yang@intel.com> | 2022-03-30 13:19:21 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-04-04 08:39:06 +0100 |
| commit | 758f24d49bff2707812fb8dfac53930603e26312 (patch) | |
| tree | ae69fc95292f3cc8c40bb3779d4f93d47b931836 /sound/soc/sof/pm.c | |
| parent | 7d8e9d79276492cbc66575a301d7ab8b92786699 (diff) | |
| download | lwn-758f24d49bff2707812fb8dfac53930603e26312.tar.gz lwn-758f24d49bff2707812fb8dfac53930603e26312.zip | |
ASoC: SOF: extend the interface to stop DMA trace
Change the interface to stop the DMA trace for suspend. Replace the
snd_sof_init_trace_ipc() and snd_sof_release_trace() calls with more
explicit interface for PM (the sole user for this interface).
The new snd_sof_trace_suspend() call takes the target PM state as argument,
allowing the trace implementation to decide how to handle the transition.
Use this information to release DMA resources only if DSP is suspended and
will not remain in D0.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Libin Yang <libin.yang@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220330201926.1330402-7-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/pm.c')
| -rw-r--r-- | sound/soc/sof/pm.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index 1c319582ca6f..a1a645a13c6d 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -135,8 +135,8 @@ static int sof_resume(struct device *dev, bool runtime_resume) return ret; } - /* resume DMA trace, only need send ipc */ - ret = snd_sof_init_trace_ipc(sdev); + /* resume DMA trace */ + ret = snd_sof_trace_resume(sdev); if (ret < 0) { /* non fatal */ dev_warn(sdev->dev, @@ -209,8 +209,8 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) if (tplg_ops->tear_down_all_pipelines) tplg_ops->tear_down_all_pipelines(sdev, false); - /* release trace */ - snd_sof_release_trace(sdev); + /* suspend DMA trace */ + snd_sof_trace_suspend(sdev, pm_state); /* Notify clients not managed by pm framework about core suspend */ sof_suspend_clients(sdev, pm_state); |