ASoC: OMAP: N810: Add more jack functions

Add functions "Headset" and "Mic" to the control "Jack Function" for
activating and de-activating codec input pin LINE1L which is connected to
the mic pin of 4-pole Nokia AV connecter.

Note there is no mic bias voltage management here since bias is coming from
Nokia ASIC and driver for it is not in mainline.
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/omap/n810.c

@@ -40,6 +40,13 @@
 #define N810_HEADSET_AMP_GPIO	10
 #define N810_SPEAKER_AMP_GPIO	101
 
+enum {
+	N810_JACK_DISABLED,
+	N810_JACK_HP,
+	N810_JACK_HS,
+	N810_JACK_MIC,
+};
+
 static struct clk *sys_clkout2;
 static struct clk *sys_clkout2_src;
 static struct clk *func96m_clk;
@@ -50,15 +57,32 @@ static int n810_dmic_func;
 
 static void n810_ext_control(struct snd_soc_codec *codec)
 {
+	int hp = 0, line1l = 0;
+
+	switch (n810_jack_func) {
+	case N810_JACK_HS:
+		line1l = 1;
+	case N810_JACK_HP:
+		hp = 1;
+		break;
+	case N810_JACK_MIC:
+		line1l = 1;
+		break;
+	}
+
 	if (n810_spk_func)
 		snd_soc_dapm_enable_pin(codec, "Ext Spk");
 	else
 		snd_soc_dapm_disable_pin(codec, "Ext Spk");
 
-	if (n810_jack_func)
+	if (hp)
 		snd_soc_dapm_enable_pin(codec, "Headphone Jack");
 	else
 		snd_soc_dapm_disable_pin(codec, "Headphone Jack");
+	if (line1l)
+		snd_soc_dapm_enable_pin(codec, "LINE1L");
+	else
+		snd_soc_dapm_disable_pin(codec, "LINE1L");
 
 	if (n810_dmic_func)
 		snd_soc_dapm_enable_pin(codec, "DMic");
@@ -229,7 +253,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 };
 
 static const char *spk_function[] = {"Off", "On"};
-static const char *jack_function[] = {"Off", "Headphone"};
+static const char *jack_function[] = {"Off", "Headphone", "Headset", "Mic"};
 static const char *input_function[] = {"ADC", "Digital Mic"};
 static const struct soc_enum n810_enum[] = {
 	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),