ASoC: sigmadsp: Simplify with snd_ctl_activate_id()

Use the standard snd_ctl_activate_id() helper instead of an open code
for code simplification.
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: "Nuno Sá" <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20230718141304.1032-7-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/soc/codecs/sigmadsp.c

@@ -669,36 +669,19 @@ static void sigmadsp_activate_ctrl(struct sigmadsp *sigmadsp,
 	struct sigmadsp_control *ctrl, unsigned int samplerate_mask)
 {
 	struct snd_card *card = sigmadsp->component->card->snd_card;
-	struct snd_kcontrol_volatile *vd;
-	struct snd_ctl_elem_id id;
 	bool active;
-	bool changed = false;
+	int changed;
 
 	active = sigmadsp_samplerate_valid(ctrl->samplerates, samplerate_mask);
-
-	down_write(&card->controls_rwsem);
-	if (!ctrl->kcontrol) {
-		up_write(&card->controls_rwsem);
+	if (!ctrl->kcontrol)
 		return;
-	}
-
-	id = ctrl->kcontrol->id;
-	vd = &ctrl->kcontrol->vd[0];
-	if (active == (bool)(vd->access & SNDRV_CTL_ELEM_ACCESS_INACTIVE)) {
-		vd->access ^= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
-		changed = true;
-	}
-	up_write(&card->controls_rwsem);
-
-	if (active && changed) {
+	changed = snd_ctl_activate_id(card, &ctrl->kcontrol->id, active);
+	if (active && changed > 0) {
 		mutex_lock(&sigmadsp->lock);
 		if (ctrl->cached)
 			sigmadsp_ctrl_write(sigmadsp, ctrl, ctrl->cache);
 		mutex_unlock(&sigmadsp->lock);
 	}
-
-	if (changed)
-		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &id);
 }
 
 /**