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

commit 650204ded3703b5817bd4b6a77fa47d333c4f902 upstream.

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/20220201155629.120510-4-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mark Brown 2022-02-01 15:56:28 +00:00 committed by Greg Kroah-Hartman
parent d6d8d1db80
commit edfac6b77b
1 changed files with 10 additions and 5 deletions
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15
sound/soc/soc-ops.c
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@ -523,7 +523,7 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
unsigned int mask = (1 << fls(max)) - 1;
unsigned int invert = mc->invert;
unsigned int val, val_mask;
int ret;
int err, ret;
if (invert)
val = (max - ucontrol->value.integer.value[0]) & mask;
@ -532,9 +532,10 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
val_mask = mask << shift;
val = val << shift;
ret = snd_soc_component_update_bits(component, reg, val_mask, val);
if (ret < 0)
return ret;
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)) {
if (invert)
@ -544,8 +545,12 @@ int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
val_mask = mask << shift;
val = val << shift;
ret = snd_soc_component_update_bits(component, rreg, val_mask,
err = snd_soc_component_update_bits(component, rreg, val_mask,
val);
/* Don't discard any error code or drop change flag */
if (ret == 0 || err < 0) {
ret = err;
}
}
return ret;