diff options
Diffstat (limited to 'sound/soc/sof/pm.c')
| -rw-r--r-- | sound/soc/sof/pm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sound/soc/sof/pm.c b/sound/soc/sof/pm.c index 8d3383085d12..85412aeb1ca1 100644 --- a/sound/soc/sof/pm.c +++ b/sound/soc/sof/pm.c @@ -183,6 +183,7 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) const struct sof_ipc_tplg_ops *tplg_ops = sof_ipc_get_ops(sdev, tplg); pm_message_t pm_state; u32 target_state = snd_sof_dsp_power_target(sdev); + u32 old_state = sdev->dsp_power_state.state; int ret; /* do nothing if dsp suspend callback is not set */ @@ -192,7 +193,12 @@ static int sof_suspend(struct device *dev, bool runtime_suspend) if (runtime_suspend && !sof_ops(sdev)->runtime_suspend) return 0; - if (tplg_ops && tplg_ops->tear_down_all_pipelines) + /* we need to tear down pipelines only if the DSP hardware is + * active, which happens for PCI devices. if the device is + * suspended, it is brought back to full power and then + * suspended again + */ + if (tplg_ops && tplg_ops->tear_down_all_pipelines && (old_state == SOF_DSP_PM_D0)) tplg_ops->tear_down_all_pipelines(sdev, false); if (sdev->fw_state != SOF_FW_BOOT_COMPLETE) |