From: Shengjiu Wang Date: Wed, 1 Apr 2026 09:42:18 +0000 (+0800) Subject: ASoC: fsl_micfil: Fix event generation in hwvad_put_init_mode() X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7e226209906906421f0d952d7304e48fdb0adabc;p=thirdparty%2Fkernel%2Flinux.git ASoC: fsl_micfil: Fix event generation in hwvad_put_init_mode() ALSA controls should return 1 if the value in the control changed but the control put operation hwvad_put_init_mode() only returns 0 or a negative error code, causing ALSA to not generate any change events. Add a suitable check in the function before updating the vad_init_mode variable. Fixes: 29dbfeecab85 ("ASoC: fsl_micfil: Add Hardware Voice Activity Detector support") Signed-off-by: Shengjiu Wang Link: https://patch.msgid.link/20260401094226.2900532-4-shengjiu.wang@nxp.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c index 97f24c9bdd68b..1c826e0cb1d5e 100644 --- a/sound/soc/fsl/fsl_micfil.c +++ b/sound/soc/fsl/fsl_micfil.c @@ -407,13 +407,18 @@ static int hwvad_put_init_mode(struct snd_kcontrol *kcontrol, unsigned int *item = ucontrol->value.enumerated.item; struct fsl_micfil *micfil = snd_soc_component_get_drvdata(comp); int val = snd_soc_enum_item_to_val(e, item[0]); + bool change = false; + + if (val < MICFIL_HWVAD_ENVELOPE_MODE || val > MICFIL_HWVAD_ENERGY_MODE) + return -EINVAL; /* 0 - Envelope-based Mode * 1 - Energy-based Mode */ + change = (micfil->vad_init_mode != val); micfil->vad_init_mode = val; - return 0; + return change; } static int hwvad_get_init_mode(struct snd_kcontrol *kcontrol,