ASoC: sun50i-codec-analog: Enable DAPM for earpiece switch

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By including the earpiece mute switch in the DAPM graph, both the
earpiece amplifier and the Mixer/DAC inputs can be powered off when
the earpiece is muted.

While the widget is really just a simple switch, it is represented
as a "mixer with named controls" to avoid including the widget name
in the kcontrol name. Otherwise, it is not possible to give the widget
an accurate, descriptive name without changing the kcontrol name
seen by userspace (which should be stable).

The mute switch is between the source selection and the amplifier,
as per the diagram in the SoC manual.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Link: https://lore.kernel.org/r/20200726025334.59931-9-samuel@sholland.org
Signed-off-by: Mark Brown <broonie@kernel.org>

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Samuel Holland 2020-07-25 21:53:34 -05:00 • committed by Mark Brown

parent 95d34762f2

commit 7829e68d55

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1 changed files with 11 additions and 6 deletions

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sound/soc/sunxi/sun50i-codec-analog.c

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