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ASoC: wcd9335: Fix spurious event generation

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The slimbus mux put operation unconditionally reports a change in value
which means that spurious events are generated. Fix this by exiting early
in that case.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220603124609.4024666-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mark Brown 2022-06-03 14:46:09 +02:00
parent 7263fc6c71
commit 6bda28a2f7
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1 changed files with 3 additions and 0 deletions
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sound/soc/codecs/wcd9335.c
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@ -1287,6 +1287,9 @@ static int slim_rx_mux_put(struct snd_kcontrol *kc,
struct snd_soc_dapm_update *update = NULL; struct snd_soc_dapm_update *update = NULL;
u32 port_id = w->shift; u32 port_id = w->shift;
if (wcd->rx_port_value[port_id] == ucontrol->value.enumerated.item[0])
return 0;
wcd->rx_port_value[port_id] = ucontrol->value.enumerated.item[0]; wcd->rx_port_value[port_id] = ucontrol->value.enumerated.item[0];
/* Remove channel from any list it's in before adding it to a new one */ /* Remove channel from any list it's in before adding it to a new one */