ASoC: Change spitz_ext_control to take dapm as argument.

This fixes below build warning:
  CC      sound/soc/pxa/spitz.o
sound/soc/pxa/spitz.c: In function 'spitz_startup':
sound/soc/pxa/spitz.c:116: warning: passing argument 1 of 'spitz_ext_control' from incompatible pointer type
sound/soc/pxa/spitz.c:47: note: expected 'struct snd_soc_card *' but argument is of type 'struct snd_soc_codec *'

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/pxa/spitz.c

@@ -44,10 +44,8 @@ static int spitz_jack_func;
 static int spitz_spk_func;
 static int spitz_mic_gpio;
 
-static void spitz_ext_control(struct snd_soc_card *card)
+static void spitz_ext_control(struct snd_soc_dapm_context *dapm)
 {
-	struct snd_soc_dapm_context *dapm = &card->dapm;
-
 	if (spitz_spk_func == SPITZ_SPK_ON)
 		snd_soc_dapm_enable_pin(dapm, "Ext Spk");
 	else
@@ -113,7 +111,7 @@ static int spitz_startup(struct snd_pcm_substream *substream)
 	mutex_lock(&codec->mutex);
 
 	/* check the jack status at stream startup */
-	spitz_ext_control(codec);
+	spitz_ext_control(&codec->dapm);
 
 	mutex_unlock(&codec->mutex);
 
@@ -179,7 +177,7 @@ static int spitz_set_jack(struct snd_kcontrol *kcontrol,
 		return 0;
 
 	spitz_jack_func = ucontrol->value.integer.value[0];
-	spitz_ext_control(card);
+	spitz_ext_control(&card->dapm);
 	return 1;
 }
 
@@ -193,13 +191,13 @@ static int spitz_get_spk(struct snd_kcontrol *kcontrol,
 static int spitz_set_spk(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
-	struct snd_soc_card *card =  snd_kcontrol_chip(kcontrol);
+	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
 
 	if (spitz_spk_func == ucontrol->value.integer.value[0])
 		return 0;
 
 	spitz_spk_func = ucontrol->value.integer.value[0];
-	spitz_ext_control(card);
+	spitz_ext_control(&card->dapm);
 	return 1;
 }