ASoC: mmp-sspa: Add support for the runtime power management

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Only turn on the Audio island when it's in use.

This requires keeping track of control register contents instead of
reloading them back from hardware, because they're lost when the power is
off.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lore.kernel.org/r/20200511210134.1224532-9-lkundrak@v3.sk
Signed-off-by: Mark Brown <broonie@kernel.org>

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Lubomir Rintel 2020-05-11 23:01:31 +02:00 • committed by Mark Brown

parent 8ecdcac879

commit 7d98cc6482

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1 changed files with 66 additions and 60 deletions

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sound/soc/pxa/mmp-sspa.c

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