ASoC: fsl_easrc: Fix control writes

Merge series from Mark Brown <broonie@kernel.org>:

I noticed that neither of the put() operations for the controls defined
by the fsl_easrc driver was flagging value changes properly, fix that.

Author: broonie

sound/soc/fsl/fsl_easrc.c

@@ -52,10 +52,13 @@ static int fsl_easrc_iec958_put_bits(struct snd_kcontrol *kcontrol,
 	struct soc_mreg_control *mc =
 		(struct soc_mreg_control *)kcontrol->private_value;
 	unsigned int regval = ucontrol->value.integer.value[0];
+	int ret;
+
+	ret = (easrc_priv->bps_iec958[mc->regbase] != regval);
 
 	easrc_priv->bps_iec958[mc->regbase] = regval;
 
-	return 0;
+	return ret;
 }
 
 static int fsl_easrc_iec958_get_bits(struct snd_kcontrol *kcontrol,
@@ -93,14 +96,17 @@ static int fsl_easrc_set_reg(struct snd_kcontrol *kcontrol,
 	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
 	struct soc_mreg_control *mc =
 		(struct soc_mreg_control *)kcontrol->private_value;
+	struct fsl_asrc *easrc = snd_soc_component_get_drvdata(component);
 	unsigned int regval = ucontrol->value.integer.value[0];
+	bool changed;
 	int ret;
 
-	ret = snd_soc_component_write(component, mc->regbase, regval);
-	if (ret < 0)
+	ret = regmap_update_bits_check(easrc->regmap, mc->regbase,
+				       GENMASK(31, 0), regval, &changed);
+	if (ret != 0)
 		return ret;
 
-	return 0;
+	return changed;
 }
 
 #define SOC_SINGLE_REG_RW(xname, xreg) \