ASoC: tas2770: Fix handling of mute/unmute

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commit 1e5907bcb3 upstream.

Because the PWR_CTRL field is modeled as the power state of the DAC
widget, and at the same time it is used to implement mute/unmute, we
need some additional book-keeping to have the right end result no matter
the sequence of calls. Without this fix, one can mute an ongoing stream
by toggling a speaker pin control.

Fixes: 1a476abc72 ("tas2770: add tas2770 smart PA kernel driver")
Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220808141246.5749-5-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Martin Povišer 2022-08-08 16:12:46 +02:00 • committed by Greg Kroah-Hartman

parent c02a92a577

commit f8c5799013

2 changed files with 32 additions and 27 deletions

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57

sound/soc/codecs/tas2770.c

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2

sound/soc/codecs/tas2770.h

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