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ASoC: cs47l15: Fix event generation for low power mux control 

[ Upstream commit 7f103af4a1 ]

cs47l15_in1_adc_put always returns zero regardless of if the control
value was updated. This results in missing notifications to user-space
of the control change. Update the handling to return 1 when the value is
changed.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220623105120.1981154-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Charles Keepax 2022-06-23 11:51:17 +01:00 committed by Greg Kroah-Hartman
parent 14937a06ab
commit 2308fdb519
1 changed files with 4 additions and 1 deletions
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5
sound/soc/codecs/cs47l15.c
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@ -122,6 +122,9 @@ static int cs47l15_in1_adc_put(struct snd_kcontrol *kcontrol,
snd_soc_kcontrol_component(kcontrol);
struct cs47l15 *cs47l15 = snd_soc_component_get_drvdata(component);
if (!!ucontrol->value.integer.value[0] == cs47l15->in1_lp_mode)
return 0;
switch (ucontrol->value.integer.value[0]) {
case 0:
/* Set IN1 to normal mode */
@ -150,7 +153,7 @@ static int cs47l15_in1_adc_put(struct snd_kcontrol *kcontrol,
break;
}
return 0;
return 1;
}
static const struct snd_kcontrol_new cs47l15_snd_controls[] = {