ASoC: simple-amplifier: gpio-audio-amp: Add support for basic gain

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Several gpios can be used to control the amplifier gain.

Add basic support for those gpios.

This basic support doesn't include any mapping between the GPIOs value
and the physical gain value (dB).

The support for this kind of mapping will be added later on.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Link: https://patch.msgid.link/20260513081702.317117-14-herve.codina@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>

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Herve Codina 2026-05-13 10:16:57 +02:00 • committed by Mark Brown

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commit 5796026b8e

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sound/soc/codecs/simple-amplifier.c

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