ALSA control put() operations should return 0 if the value changed so that
events can be generated appropriately for userspace but the custom control
in the MT8183 I2S DAI driver doesn't do that, fix it.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
sound/soc/mediatek/mt8183/mt8183-dai-i2s.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c b/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
index 38f7fa38ee95..8645ab686970 100644
--- a/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
+++ b/sound/soc/mediatek/mt8183/mt8183-dai-i2s.c
@@ -141,7 +141,7 @@ static int mt8183_i2s_hd_set(struct snd_kcontrol *kcontrol,
struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
struct mtk_afe_i2s_priv *i2s_priv;
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- int hd_en;
+ int hd_en, change;
if (ucontrol->value.enumerated.item[0] >= e->items)
return -EINVAL;
@@ -155,9 +155,10 @@ static int mt8183_i2s_hd_set(struct snd_kcontrol *kcontrol,
return -EINVAL;
}
+ change = i2s_priv->low_jitter_en != hd_en;
i2s_priv->low_jitter_en = hd_en;
- return 0;
+ return change;
}
static const struct snd_kcontrol_new mtk_dai_i2s_controls[] = {
--
2.30.2
