ASoC: Intel: sof_da7219_max98373: Map missing Line Out jack kcontrol

Commit 2913bb1f ("ASoC: Intel: sof_da7219_max98373: remap jack
pins") maps kcontrols for Headphone and Headset Mic jacks for this
driver so that PulseAudio and PipeWire can handle jack detection events
for these peripherals.

The DA7219 codec used here can also distinguish between Headphone and
Line Out connections that go into the same physical port. Expose the
latter to userspace as a kcontrol as well and add the necessary widgets.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Link: https://lore.kernel.org/r/20230802175737.263412-11-alpernebiyasak@gmail.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/intel/boards/sof_da7219_max98373.c

@@ -65,6 +65,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
 static const struct snd_kcontrol_new controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Line Out"),
 	SOC_DAPM_PIN_SWITCH("Left Spk"),
 	SOC_DAPM_PIN_SWITCH("Right Spk"),
 };
@@ -72,6 +73,7 @@ static const struct snd_kcontrol_new controls[] = {
 static const struct snd_kcontrol_new m98360a_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Line Out"),
 	SOC_DAPM_PIN_SWITCH("Spk"),
 };
 
@@ -79,6 +81,7 @@ static const struct snd_kcontrol_new m98360a_controls[] = {
 static const struct snd_soc_dapm_widget widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_LINE("Line Out", NULL),
 
 	SND_SOC_DAPM_SPK("Left Spk", NULL),
 	SND_SOC_DAPM_SPK("Right Spk", NULL),
@@ -98,6 +101,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 
 	{ "Headphone Jack", NULL, "Platform Clock" },
 	{ "Headset Mic", NULL, "Platform Clock" },
+	{ "Line Out", NULL, "Platform Clock" },
 
 	{ "Left Spk", NULL, "Left BE_OUT" },
 	{ "Right Spk", NULL, "Right BE_OUT" },
@@ -110,6 +114,7 @@ static const struct snd_soc_dapm_route audio_map[] = {
 static const struct snd_soc_dapm_widget max98360a_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_LINE("Line Out", NULL),
 
 	SND_SOC_DAPM_SPK("Spk", NULL),
 
@@ -128,6 +133,7 @@ static const struct snd_soc_dapm_route max98360a_map[] = {
 
 	{ "Headphone Jack", NULL, "Platform Clock" },
 	{ "Headset Mic", NULL, "Platform Clock" },
+	{ "Line Out", NULL, "Platform Clock" },
 
 	{"Spk", NULL, "Speaker"},
 
@@ -144,6 +150,10 @@ static struct snd_soc_jack_pin jack_pins[] = {
 		.pin    = "Headset Mic",
 		.mask   = SND_JACK_MICROPHONE,
 	},
+	{
+		.pin    = "Line Out",
+		.mask   = SND_JACK_LINEOUT,
+	},
 };
 
 static struct snd_soc_jack headset;