[PATCH 4/6] ASoC: mediatek: mt8186-da7219: Expose individual headset jack pins

From: Nícolas F. R. A. Prado
Date: Thu Sep 22 2022 - 20:00:25 EST


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@xxxxxxxxxxxxx>
---

.../mt8186/mt8186-mt6366-da7219-max98357.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8186/mt8186-mt6366-da7219-max98357.c b/sound/soc/mediatek/mt8186/mt8186-mt6366-da7219-max98357.c
index 8d428bc4a3b2..cfca6bdee834 100644
--- a/sound/soc/mediatek/mt8186/mt8186-mt6366-da7219-max98357.c
+++ b/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;
--
2.37.3