[PATCH v2] ALSA: hda/realtek: Fix quiet 3.5mm jacks on Beelink SER6

Both the front headphone jack and the rear line-out jack play back
at a barely audible volume on the Beelink SER6 Max (ALC897, PCI subsystem
ID 1f66:0202), even with all mixer controls at 0dB. GPIO2 on the
codec gates an external headphone/line amplifier that the generic
parser never enables. Add a fixup that asserts it. Verified fixed
on both jacks.

Signed-off-by: Brian Koebbe <[email protected]>
---
v2: put the QUIRK in the correct position

    remove comment from alc662_fixups[] addition, to better match others

    append to enum and alc662_fixups[] rather than insert
---
 sound/hda/codecs/realtek/alc662.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc662.c b/sound/hda/codecs/realtek/alc662.c
index 2cf3664a35ff..77aada355031 100644
--- a/sound/hda/codecs/realtek/alc662.c
+++ b/sound/hda/codecs/realtek/alc662.c
@@ -325,6 +325,7 @@ enum {
 	ALC897_FIXUP_UNIS_H3C_X500S,
 	ALC897_FIXUP_HEADSET_MIC_PIN3,
 	ALC662_FIXUP_CSL_GPIO,
+	ALC897_FIXUP_BEELINK_SER6_AMP,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -782,6 +783,10 @@ static const struct hda_fixup alc662_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc662_fixup_csl_amp,
 	},
+	[ALC897_FIXUP_BEELINK_SER6_AMP] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_gpio4,
+	},
 };
 
 static const struct hda_quirk alc662_fixup_tbl[] = {
@@ -852,6 +857,7 @@ static const struct hda_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1b35, 0x1234, "CZC ET26", ALC662_FIXUP_CZC_ET26),
 	SND_PCI_QUIRK(0x1b35, 0x2206, "CZC P10T", ALC662_FIXUP_CZC_P10T),
 	SND_PCI_QUIRK(0x1c6c, 0x1239, "Compaq N14JP6-V2", ALC897_FIXUP_HP_HSMIC_VERB),
+	SND_PCI_QUIRK(0x1f66, 0x0202, "Beelink SER6 Max 6900", ALC897_FIXUP_BEELINK_SER6_AMP),
 
 #if 0
 	/* Below is a quirk table taken from the old code.
-- 
2.55.0