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ASoC: SOF: Fixes for suspend after firmware crash 

Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:

This series contails 2 patches to fix device suspend after a firmware
crash and another patch to allow reading the FW state from debugfs.
This commit is contained in:
Mark Brown 2022-12-27 00:03:16 +00:00
parent 3e78986a84 9a9134fd56
commit ce9ef749a2
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 7 additions and 6 deletions
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4
sound/soc/sof/debug.c
View File

@ -353,7 +353,9 @@ int snd_sof_dbg_init(struct snd_sof_dev *sdev)
return err;
}
return 0;
return snd_sof_debugfs_buf_item(sdev, &sdev->fw_state,
sizeof(sdev->fw_state),
"fw_state", 0444);
}
EXPORT_SYMBOL_GPL(snd_sof_dbg_init);

9
sound/soc/sof/pm.c
View File

@ -182,7 +182,7 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
const struct sof_ipc_pm_ops *pm_ops = sdev->ipc->ops->pm;
const struct sof_ipc_tplg_ops *tplg_ops = sdev->ipc->ops->tplg;
pm_message_t pm_state;
u32 target_state = 0;
u32 target_state = snd_sof_dsp_power_target(sdev);
int ret;
/* do nothing if dsp suspend callback is not set */
@ -192,6 +192,9 @@ 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)
tplg_ops->tear_down_all_pipelines(sdev, false);
if (sdev->fw_state != SOF_FW_BOOT_COMPLETE)
goto suspend;
@ -206,7 +209,6 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
}
}
target_state = snd_sof_dsp_power_target(sdev);
pm_state.event = target_state;
/* Skip to platform-specific suspend if DSP is entering D0 */
@ -217,9 +219,6 @@ static int sof_suspend(struct device *dev, bool runtime_suspend)
goto suspend;
}
if (tplg_ops->tear_down_all_pipelines)
tplg_ops->tear_down_all_pipelines(sdev, false);
/* suspend DMA trace */
sof_fw_trace_suspend(sdev, pm_state);