ASoC: mediatek: mt8186-da7219: Expose individual headset jack pins

The da7219 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the mt8186-da7219 driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.

Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.
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/20220922235951.252532-5-nfraprado@collabora.comSigned-off-by: Mark Brown <broonie@kernel.org>

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

@@ -37,6 +37,18 @@ struct mt8186_mt6366_da7219_max98357_priv {
 	struct snd_soc_jack headset_jack, hdmi_jack;
 };
 
+/* Headset jack detection DAPM pins */
+static struct snd_soc_jack_pin mt8186_jack_pins[] = {
+	{
+		.pin = "Headphones",
+		.mask = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin = "Headset Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+};
+
 static struct snd_soc_codec_conf mt8186_mt6366_da7219_max98357_codec_conf[] = {
 	{
 		.dlc = COMP_CODEC_CONF("mt6358-sound"),
@@ -72,11 +84,12 @@ static int mt8186_da7219_init(struct snd_soc_pcm_runtime *rtd)
 	}
 
 	/* Enable Headset and 4 Buttons Jack detection */
-	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
+	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
 				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
 				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
 				    SND_JACK_BTN_3 | SND_JACK_LINEOUT,
-				    jack);
+				    jack, mt8186_jack_pins,
+				    ARRAY_SIZE(mt8186_jack_pins));
 	if (ret) {
 		dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
 		return ret;