Messages in this thread Patch in this message | | | From | Charles Keepax <> | Subject | [PATCH 4/6] ASoC: madera: Fix event generation for OUT1 demux | Date | Thu, 23 Jun 2022 11:51:18 +0100 |
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madera_out1_demux_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> --- sound/soc/codecs/madera.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/sound/soc/codecs/madera.c b/sound/soc/codecs/madera.c index 272041c6236a9..8095a87117cf8 100644 --- a/sound/soc/codecs/madera.c +++ b/sound/soc/codecs/madera.c @@ -618,7 +618,13 @@ int madera_out1_demux_put(struct snd_kcontrol *kcontrol, end: snd_soc_dapm_mutex_unlock(dapm); - return snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); + ret = snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL); + if (ret < 0) { + dev_err(madera->dev, "Failed to update demux power state: %d\n", ret); + return ret; + } + + return change; } EXPORT_SYMBOL_GPL(madera_out1_demux_put); -- 2.30.2
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