ASoC: use snd_soc_component_init_regmap() on wm5110

To setup regmap, ALSA SoC has snd_soc_component_init_regmap() and
.get_regmap. But these are duplicated feature.
Let's use snd_soc_component_init_regmap() and remove .get_regmap
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm5110.c

@@ -2280,9 +2280,11 @@ static int wm5110_codec_probe(struct snd_soc_codec *codec)
 	struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
 	struct snd_soc_component *component = snd_soc_dapm_to_component(dapm);
 	struct wm5110_priv *priv = snd_soc_codec_get_drvdata(codec);
+	struct arizona *arizona = priv->core.arizona;
 	int i, ret;
 
-	priv->core.arizona->dapm = dapm;
+	arizona->dapm = dapm;
+	snd_soc_codec_init_regmap(codec, arizona->regmap);
 
 	ret = arizona_init_spk(codec);
 	if (ret < 0)
@@ -2344,17 +2346,9 @@ static unsigned int wm5110_digital_vu[] = {
 	ARIZONA_DAC_DIGITAL_VOLUME_6R,
 };
 
-static struct regmap *wm5110_get_regmap(struct device *dev)
-{
-	struct wm5110_priv *priv = dev_get_drvdata(dev);
-
-	return priv->core.arizona->regmap;
-}
-
 static const struct snd_soc_codec_driver soc_codec_dev_wm5110 = {
 	.probe = wm5110_codec_probe,
 	.remove = wm5110_codec_remove,
-	.get_regmap = wm5110_get_regmap,
 
 	.idle_bias_off = true,