ASoC: tlv320aic3x: remove unused code

Looks like nobody is or will be using this code.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/tlv320aic3x.c

@@ -1185,25 +1185,6 @@ static int aic3x_set_bias_level(struct snd_soc_codec *codec,
 	return 0;
 }
 
-void aic3x_set_gpio(struct snd_soc_codec *codec, int gpio, int state)
-{
-	u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG;
-	u8 bit = gpio ? 3: 0;
-	u8 val = snd_soc_read(codec, reg) & ~(1 << bit);
-	snd_soc_write(codec, reg, val | (!!state << bit));
-}
-EXPORT_SYMBOL_GPL(aic3x_set_gpio);
-
-int aic3x_get_gpio(struct snd_soc_codec *codec, int gpio)
-{
-	u8 reg = gpio ? AIC3X_GPIO2_REG : AIC3X_GPIO1_REG;
-	u8 val = 0, bit = gpio ? 2 : 1;
-
-	aic3x_read(codec, reg, &val);
-	return (val >> bit) & 1;
-}
-EXPORT_SYMBOL_GPL(aic3x_get_gpio);
-
 void aic3x_set_headset_detection(struct snd_soc_codec *codec, int detect,
 				 int headset_debounce, int button_debounce)
 {
@@ -1221,23 +1202,6 @@ void aic3x_set_headset_detection(struct snd_soc_codec *codec, int detect,
 
 	snd_soc_write(codec, AIC3X_HEADSET_DETECT_CTRL_A, val);
 }
-EXPORT_SYMBOL_GPL(aic3x_set_headset_detection);
-
-int aic3x_headset_detected(struct snd_soc_codec *codec)
-{
-	u8 val = 0;
-	aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val);
-	return (val >> 4) & 1;
-}
-EXPORT_SYMBOL_GPL(aic3x_headset_detected);
-
-int aic3x_button_pressed(struct snd_soc_codec *codec)
-{
-	u8 val = 0;
-	aic3x_read(codec, AIC3X_HEADSET_DETECT_CTRL_B, &val);
-	return (val >> 5) & 1;
-}
-EXPORT_SYMBOL_GPL(aic3x_button_pressed);
 
 #define AIC3X_RATES	SNDRV_PCM_RATE_8000_96000
 #define AIC3X_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \

sound/soc/codecs/tlv320aic3x.h

@@ -212,9 +212,6 @@
 /* Default input volume */
 #define DEFAULT_GAIN    0x20
 
-void aic3x_set_gpio(struct snd_soc_codec *codec, int gpio, int state);
-int aic3x_get_gpio(struct snd_soc_codec *codec, int gpio);
-
 /* headset detection / button API */
 
 /* The AIC3x supports detection of stereo headsets (GND + left + right signal)
@@ -252,10 +249,4 @@ enum {
 #define AIC3X_BUTTON_DEBOUNCE_SHIFT 	0
 #define AIC3X_BUTTON_DEBOUNCE_MASK	3
 
-/* see the enums above for valid parameters to this function */
-void aic3x_set_headset_detection(struct snd_soc_codec *codec, int detect,
-				 int headset_debounce, int button_debounce);
-int aic3x_headset_detected(struct snd_soc_codec *codec);
-int aic3x_button_pressed(struct snd_soc_codec *codec);
-
 #endif /* _AIC3X_H */