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ASoC: ops: Fix stereo change notifications in snd_soc_put_volsw_sx() 

When writing out a stereo control we discard the change notification from
the first channel, meaning that events are only generated based on changes
to the second channel. Ensure that we report a change if either channel
has changed.

Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220201155629.120510-3-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mark Brown 2022-02-01 15:56:27 +00:00
parent 564778d7b1
commit 7f3d90a351
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1 changed files with 7 additions and 0 deletions
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7
sound/soc/soc-ops.c
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@ -427,6 +427,7 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
int min = mc->min;
unsigned int mask = (1U << (fls(min + max) - 1)) - 1;
int err = 0;
int ret;
unsigned int val, val_mask;
if (ucontrol->value.integer.value[0] < 0)
@ -443,6 +444,7 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
err = snd_soc_component_update_bits(component, reg, val_mask, val);
if (err < 0)
return err;
ret = err;
if (snd_soc_volsw_is_stereo(mc)) {
unsigned int val2;
@ -453,6 +455,11 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
err = snd_soc_component_update_bits(component, reg2, val_mask,
val2);
/* Don't discard any error code or drop change flag */
if (ret == 0 || err < 0) {
ret = err;
}
}
return err;
}