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@xxxxxxxxxxxxxxxxxxxxx>
---
sound/soc/codecs/cs47l15.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/cs47l15.c b/sound/soc/codecs/cs47l15.c
index 391fd7da331fd..1c7d52bef8935 100644
--- a/sound/soc/codecs/cs47l15.c
+++ b/sound/soc/codecs/cs47l15.c
@@ -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[] = {
--
2.30.2
