ASoC: rt5645: Add headset detect function

Add headset detect function

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.h

@@ -2166,6 +2166,8 @@ struct rt5645_priv {
 	struct snd_soc_codec *codec;
 	struct rt5645_platform_data pdata;
 	struct regmap *regmap;
+	struct i2c_client *i2c;
+	struct snd_soc_jack *jack;
 
 	int sysclk;
 	int sysclk_src;
@@ -2178,4 +2180,7 @@ struct rt5645_priv {
 	int pll_out;
 };
 
+int rt5645_set_jack_detect(struct snd_soc_codec *codec,
+	struct snd_soc_jack *jack);
+
 #endif /* __RT5645_H__ */