ASoC: SOF: core: Free the firmware trace before calling snd_sof_shutdown()

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[ Upstream commit d389dcb3a4 ]

The shutdown is called on reboot/shutdown of the machine.
At this point the firmware tracing cannot be used anymore but in case of
IPC3 it is using and keeping a DMA channel active (dtrace).

For Tiger Lake platforms we have a quirk in place to fix rare reboot issues
when a DMA was active before rebooting the system.
If the tracing is enabled this quirk will be always used and a print
appears on the kernel log which might be misleading or not even correct.

Release the fw tracing before executing the shutdown to make sure that this
known DMA user is cleared away.

Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230616100039.378150-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Peter Ujfalusi 2023-06-16 12:00:34 +02:00 • committed by Greg Kroah-Hartman

parent 49698f5f3c

commit 12f415a074

1 changed files with 3 additions and 1 deletions

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sound/soc/sof/core.c

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