ASoC: fsl_micfil: Fix event generation in micfil_put_dc_remover_state()

ALSA controls should return 1 if the value in the control changed but the
control put operation micfil_put_dc_remover_state() only returns 0 or a
negative error code, causing ALSA to not generate any change events.

return the value of snd_soc_component_update_bits() directly, as it has
the capability of return check status of changed or not.

Also enable pm runtime before calling the function
snd_soc_component_update_bits() to make the regmap cache data align with
the value in hardware.

Fixes: 29dbfeecab85 ("ASoC: fsl_micfil: Add Hardware Voice Activity Detector support")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20260401094226.2900532-6-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
index 0cfdd6343291ac2458cab43375afe9909c201d4f..983805bbaae272f4ff8de866059c40afeabf5d23 100644 (file)
--- a/sound/soc/fsl/fsl_micfil.c
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -351,6 +351,10 @@ static int micfil_put_dc_remover_state(struct snd_kcontrol *kcontrol,
        if (val < 0 || val > 3)
                return -EINVAL;
 
+       ret = pm_runtime_resume_and_get(comp->dev);
+       if (ret)
+               return ret;
+
        micfil->dc_remover = val;
 
        /* Calculate total value for all channels */
@@ -360,10 +364,10 @@ static int micfil_put_dc_remover_state(struct snd_kcontrol *kcontrol,
        /* Update DC Remover mode for all channels */
        ret = snd_soc_component_update_bits(comp, REG_MICFIL_DC_CTRL,
                                            MICFIL_DC_CTRL_CONFIG, reg_val);
-       if (ret < 0)
-               return ret;
 
-       return 0;
+       pm_runtime_put_autosuspend(comp->dev);
+
+       return ret;
 }
 
 static int micfil_get_dc_remover_state(struct snd_kcontrol *kcontrol,