ASoC: codec: Simplify ASoC probe code.

For some CODEC drivers like who act as the MFDs children are ignored
by this patch.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

sound/soc/codecs/rt5631.c

@@ -1585,15 +1585,6 @@ static int rt5631_probe(struct snd_soc_codec *codec)
 {
 	struct rt5631_priv *rt5631 = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
-	int ret;
-
-	codec->control_data = rt5631->regmap;
-
-	ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
-		return ret;
-	}
 
 	val = rt5631_read_index(codec, RT5631_ADDA_MIXER_INTL_REG3);
 	if (val & 0x0002)