[PATCH] ALSA: hda/realtek: Enable jack detection on Minisforum AI X1 Pro

The firmware of the Minisforum AI X1 Pro leaves the headphone jack detector
reset bit asserted on its ALC245 codec. As a result, pin sense on NID 0x21
always reports the jack as absent.

Clear only the Reset HP JD bit during codec initialization. Preserve the
remaining coefficient bits. This makes pin sense and the generic HDA
auto-mute logic work normally. Apply the fixup at INIT to also reapply the
setting after codec reinitialization and resume.

Tested on a Minisforum AI X1 Pro with codec 0x10ec0245 and subsystem
0x1f4cb020 using Ubuntu 26.04 kernel 7.0.0-28-generic.

Signed-off-by: Jeremie Pardou <[email protected]>
---
 sound/hda/codecs/realtek/alc269.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 48a2e7f2e..e21cd8b2b 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -1392,6 +1392,15 @@ static void alc245_fixup_hp_gpio_led(struct hda_codec *codec,
 	alc_fixup_hp_gpio_led(codec, action, 0, 0x04);
 }
 
+static void alc245_fixup_minisforum_jack_detect(struct hda_codec *codec,
+						const struct hda_fixup *fix,
+						int action)
+{
+	if (action == HDA_FIXUP_ACT_INIT)
+		/* Clear Reset HP JD while preserving the other coefficient bits. */
+		alc_update_coef_idx(codec, 0x4a, BIT(15), 0);
+}
+
 /* turn on/off mic-mute LED per capture hook via VREF change */
 static int vref_micmute_led_set(struct led_classdev *led_cdev,
 				enum led_brightness brightness)
@@ -4197,6 +4206,7 @@ enum {
 	ALC287_FIXUP_LENOVO_THKPAD_WH_ALC1318,
 	ALC256_FIXUP_CHROME_BOOK,
 	ALC245_FIXUP_CLEVO_NOISY_MIC,
+	ALC245_FIXUP_MINISFORUM_JACK_DETECT,
 	ALC269_FIXUP_VAIO_VJFH52_MIC_NO_PRESENCE,
 	ALC233_FIXUP_MEDION_MTL_SPK,
 	ALC233_FIXUP_STARLABS_STARFIGHTER,
@@ -6729,6 +6739,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 	},
+	[ALC245_FIXUP_MINISFORUM_JACK_DETECT] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc245_fixup_minisforum_jack_detect,
+	},
 	[ALC269_FIXUP_VAIO_VJFH52_MIC_NO_PRESENCE] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -8067,6 +8081,8 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1e50, 0x7038, "Positivo DN140", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x1ee7, 0x2078, "HONOR BRB-X M1010", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1ee7, 0x2081, "HONOR MRB-XXX M1020", ALC256_FIXUP_HONOR_MRB_XXX_M1020_AUDIO),
+	SND_PCI_QUIRK(0x1f4c, 0xb020, "Minisforum AI X1 Pro",
+		      ALC245_FIXUP_MINISFORUM_JACK_DETECT),
 	SND_PCI_QUIRK(0x1f4c, 0xe001, "Minisforum V3 (SE)", ALC245_FIXUP_BASS_HP_DAC),
 	SND_PCI_QUIRK(0x1f66, 0x0105, "Ayaneo Portable Game Player", ALC287_FIXUP_CS35L41_I2C_2),
 	SND_PCI_QUIRK(0x2014, 0x800a, "Positivo ARN50", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),