ASoC: TWL4030: Add support for platform dependent configuration

twl4030_setup_data structure can be passed from platform drivers to
the codec via the snd_soc_device->codec_data pointer.

Currently the setup data has support for the Headset pop-removal
related configuration, which differs from board to board.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/twl4030.h b/sound/soc/codecs/twl4030.h
index 9668bdf..48326e2 100644
--- a/sound/soc/codecs/twl4030.h
+++ b/sound/soc/codecs/twl4030.h
@@ -266,4 +266,9 @@
 extern struct snd_soc_dai twl4030_dai[2];
 extern struct snd_soc_codec_device soc_codec_dev_twl4030;
 
+struct twl4030_setup_data {
+	unsigned int ramp_delay_value;
+	unsigned int sysclk;
+};
+
 #endif	/* End of __TWL4030_AUDIO_H__ */