diff options
| author | Charles Keepax <ckeepax@opensource.cirrus.com> | 2022-06-28 16:34:06 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-07-07 17:16:25 +0100 |
| commit | 71b5ab96ffe6589abe7a2e302b83f7a426ebe099 (patch) | |
| tree | 9cc2a04261b15404ed258a0ea6eb0b535aa78ec9 | |
| parent | a5d6d28e2ea38dff017cb562dfbe0259d093a851 (diff) | |
| download | lwn-71b5ab96ffe6589abe7a2e302b83f7a426ebe099.tar.gz lwn-71b5ab96ffe6589abe7a2e302b83f7a426ebe099.zip | |
ASoC: wm5102: Fix event generation for output compensation
The output compensation controls 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>
Link: https://lore.kernel.org/r/20220628153409.3266932-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/codecs/wm5102.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c index da2f8998df87..b034df47a5ef 100644 --- a/sound/soc/codecs/wm5102.c +++ b/sound/soc/codecs/wm5102.c @@ -680,12 +680,17 @@ static int wm5102_out_comp_coeff_put(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct arizona *arizona = dev_get_drvdata(component->dev->parent); + uint16_t dac_comp_coeff = get_unaligned_be16(ucontrol->value.bytes.data); + int ret = 0; mutex_lock(&arizona->dac_comp_lock); - arizona->dac_comp_coeff = get_unaligned_be16(ucontrol->value.bytes.data); + if (arizona->dac_comp_coeff != dac_comp_coeff) { + arizona->dac_comp_coeff = dac_comp_coeff; + ret = 1; + } mutex_unlock(&arizona->dac_comp_lock); - return 0; + return ret; } static int wm5102_out_comp_switch_get(struct snd_kcontrol *kcontrol, @@ -706,12 +711,20 @@ static int wm5102_out_comp_switch_put(struct snd_kcontrol *kcontrol, { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct arizona *arizona = dev_get_drvdata(component->dev->parent); + struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; + int ret = 0; + + if (ucontrol->value.integer.value[0] > mc->max) + return -EINVAL; mutex_lock(&arizona->dac_comp_lock); - arizona->dac_comp_enabled = ucontrol->value.integer.value[0]; + if (arizona->dac_comp_enabled != ucontrol->value.integer.value[0]) { + arizona->dac_comp_enabled = ucontrol->value.integer.value[0]; + ret = 1; + } mutex_unlock(&arizona->dac_comp_lock); - return 0; + return ret; } static const char * const wm5102_osr_text[] = { |