ASoC: mediatek: mt8186-da7219: Add headset widgets with switches

Add DAPM widgets for headphones and headset microphone, with matching
switches, to allow toggling these paths based on the jack connection
status.

Note that differently from others (mt8192, mt8195 and mt8186-rt5682),
the widget here is named "Headphones" (with an 's'), since "Headphone
Switch" was already registered by da7219.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-4-nfraprado@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt8186/mt8186-mt6366-da7219-max98357.c

@@ -950,6 +950,8 @@ static struct snd_soc_dai_link mt8186_mt6366_da7219_max98357_dai_links[] = {
 static const struct snd_soc_dapm_widget
 mt8186_mt6366_da7219_max98357_widgets[] = {
 	SND_SOC_DAPM_SPK("Speakers", NULL),
+	SND_SOC_DAPM_HP("Headphones", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_OUTPUT("HDMI1"),
 	SND_SOC_DAPM_MIXER(SOF_DMA_DL1, SND_SOC_NOPM, 0, 0, NULL, 0),
 	SND_SOC_DAPM_MIXER(SOF_DMA_DL2, SND_SOC_NOPM, 0, 0, NULL, 0),
@@ -961,6 +963,10 @@ static const struct snd_soc_dapm_route
 mt8186_mt6366_da7219_max98357_routes[] = {
 	/* SPK */
 	{ "Speakers", NULL, "Speaker"},
+	/* Headset */
+	{ "Headphones", NULL, "HPL" },
+	{ "Headphones", NULL, "HPR" },
+	{ "MIC", NULL, "Headset Mic" },
 	/* HDMI */
 	{ "HDMI1", NULL, "TX"},
 	/* SOF Uplink */
@@ -976,6 +982,8 @@ mt8186_mt6366_da7219_max98357_routes[] = {
 static const struct snd_kcontrol_new
 mt8186_mt6366_da7219_max98357_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Speakers"),
+	SOC_DAPM_PIN_SWITCH("Headphones"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 	SOC_DAPM_PIN_SWITCH("HDMI1"),
 };