ASoC: Activate DCS correction for WM8993

Use a two code correction for optimal performance.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

sound/soc/codecs/wm8993.c

 /*
  * wm8993.c -- WM8993 ALSA SoC audio driver
  *
- * Copyright 2009 Wolfson Microelectronics plc
+ * Copyright 2009, 2010 Wolfson Microelectronics plc
  *
  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
  *
@@ -1598,6 +1598,7 @@ static int wm8993_i2c_probe(struct i2c_client *i2c,
 	codec->private_data = wm8993;
 
 	wm8993->hubs_data.hp_startup_mode = 1;
+	wm8993->hubs_data.dcs_codes = -2;
 
 	memcpy(wm8993->reg_cache, wm8993_reg_defaults,
 	       sizeof(wm8993->reg_cache));