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[3/6] ASoC: cs47l15: Fix event generation for low power mux control

Message ID 20220623105120.1981154-3-ckeepax@opensource.cirrus.com (mailing list archive)
State Accepted
Commit 7f103af4a10f375b9b346b4d0b730f6a66b8c451
Headers show
Series [1/6] ASoC: dapm: Initialise kcontrol data for mux/demux controls | expand

Commit Message

Charles Keepax June 23, 2022, 10:51 a.m. UTC 
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>
---
 sound/soc/codecs/cs47l15.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

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[] = {