ASoC: SOF: extend the interface to stop DMA trace

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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>

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Libin Yang 2022-03-30 13:19:21 -07:00 • committed by Mark Brown

parent 7d8e9d7927

commit 758f24d49b

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3 changed files with 51 additions and 21 deletions

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8

sound/soc/sof/pm.c

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12

sound/soc/sof/sof-priv.h

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52

sound/soc/sof/trace.c

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