ASoC: Intel: Add Baytrail suspend/resume support

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Add suspend and resume support to Baytrail SST DSP. This is implemented by
unloading firmware modules and putting DSP into reset prior suspend and
restarting DSP again in normal boot state after resume.

Context restore for running streams is implemented by scheduling a work from
sst_byt_pcm_trigger() that will allocate a stream with existing parameters
and start it from last known buffer position before suspend.

[Jarkko: Squashed together 5 WIP patches from Liam and 1 from me]

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Liam Girdwood 2014-05-08 16:07:26 +03:00 • committed by Mark Brown

parent 609a13e5c9

commit af94aa558b

3 changed files with 179 additions and 1 deletions

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69

sound/soc/intel/sst-baytrail-ipc.c

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4

sound/soc/intel/sst-baytrail-ipc.h

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107

sound/soc/intel/sst-baytrail-pcm.c

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