ASoC: Intel: sst: Free streams on suspend, re-alloc on resume

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The Bay Trail SST-DSP firmware version looses track of all streams over a
suspend/resume, failing any attempts to resume and/or free streams, with
a SST_ERR_INVALID_STREAM_ID error.

This commit adds support for free-ing the streams on suspend and
re-allocating them on resume, fixing suspend/resume issues on devices
using this firmware version.

This new behavior gets triggered by a new flag in sst_platform_info which
only gets set on Bay Trail platforms.

This has been tested on the following devices:
-Asus T100TA,    Bay Trail    + ALC5642 codec
-Ployer MOMO7W,  Bay Trail CR + ALC5652 codec

Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Hans de Goede 2018-02-18 23:01:43 +01:00 • committed by Mark Brown

parent 473858cad1

commit bf642bf573

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GPG key ID: 24D68B725D5487D0

5 changed files with 53 additions and 3 deletions

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1

arch/x86/include/asm/platform_sst_audio.h

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24

sound/soc/intel/atom/sst/sst.c

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sound/soc/intel/atom/sst/sst.h

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3

sound/soc/intel/atom/sst/sst_acpi.c

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24

sound/soc/intel/atom/sst/sst_stream.c

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