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ASoC: simple-mux: add read function

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During initialisation DAPM tries to read the state of the MUX
being connected, resulting in this error log:
input-mux: ASoC: error at soc_component_read_no_lock on input-mux: -5

Provide a read function which allows DAPM to read the state of the
MUX.

Signed-off-by: Maarten Zanders <maarten.zanders@mind.be>
Link: https://lore.kernel.org/r/20221028191303.166115-1-maarten.zanders@mind.be
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Maarten Zanders 2022-10-28 21:13:01 +02:00 committed by Mark Brown
parent a984d8332d
commit f7d97cb564
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1 changed files with 9 additions and 0 deletions
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9
sound/soc/codecs/simple-mux.c
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@ -55,6 +55,14 @@ static int simple_mux_control_put(struct snd_kcontrol *kcontrol,
e, NULL);
}
static unsigned int simple_mux_read(struct snd_soc_component *component,
unsigned int reg)
{
struct simple_mux *priv = snd_soc_component_get_drvdata(component);
return priv->mux;
}
static const struct snd_kcontrol_new simple_mux_mux =
SOC_DAPM_ENUM_EXT("Muxer", simple_mux_enum, simple_mux_control_get, simple_mux_control_put);
@ -76,6 +84,7 @@ static const struct snd_soc_component_driver simple_mux_component_driver = {
.num_dapm_widgets = ARRAY_SIZE(simple_mux_dapm_widgets),
.dapm_routes = simple_mux_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(simple_mux_dapm_routes),
.read = simple_mux_read,
};
static int simple_mux_probe(struct platform_device *pdev)