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ASoC: wm8998: Fix event generation for input mux

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wm8998_inmux_put returns the value of snd_soc_dapm_mux_update_power,
which returns a 1 if a path was found for the kcontrol. This is
obviously different to the expected return a 1 if the control
was updated value. This results in spurious notifications to
user-space. Update the handling to only return a 1 when the value is
changed.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220628153409.3266932-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Charles Keepax 2022-06-28 16:34:07 +01:00 committed by Mark Brown
parent 71b5ab96ff
commit 15b2e5d10c
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 14 additions and 7 deletions
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21
sound/soc/codecs/wm8998.c
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@ -108,6 +108,7 @@ static int wm8998_inmux_put(struct snd_kcontrol *kcontrol,
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
unsigned int mode_reg, mode_index;
unsigned int mux, inmode, src_val, mode_val;
int change, ret;
mux = ucontrol->value.enumerated.item[0];
if (mux > 1)
@ -137,14 +138,20 @@ static int wm8998_inmux_put(struct snd_kcontrol *kcontrol,
snd_soc_component_update_bits(component, mode_reg,
ARIZONA_IN1_MODE_MASK, mode_val);
snd_soc_component_update_bits(component, e->reg,
ARIZONA_IN1L_SRC_MASK |
ARIZONA_IN1L_SRC_SE_MASK,
src_val);
change = snd_soc_component_update_bits(component, e->reg,
ARIZONA_IN1L_SRC_MASK |
ARIZONA_IN1L_SRC_SE_MASK,
src_val);
return snd_soc_dapm_mux_update_power(dapm, kcontrol,
ucontrol->value.enumerated.item[0],
e, NULL);
ret = snd_soc_dapm_mux_update_power(dapm, kcontrol,
ucontrol->value.enumerated.item[0],
e, NULL);
if (ret < 0) {
dev_err(arizona->dev, "Failed to update demux power state: %d\n", ret);
return ret;
}
return change;
}
static const char * const wm8998_inmux_texts[] = {