[PATCH v2] ALSA: hda/realtek: Add mute LED fixup for HP Pavilion 15-cs1xxx

[Rodrigo Faria <rodrigofilipefaria@gmail.com>]

Add a new fixup for the mute LED on the HP Pavilion 15-cs1xxx series
using the VREF on NID 0x1b.

The BIOS on these models (tested up to F.32) incorrectly reports
the mute LED on NID 0x18 via DMI OEM strings, which lacks VREF
capabilities. This fixup overrides the LED pin to the correct
NID 0x1b.

Signed-off-by: Rodrigo Faria <rodrigofilipefaria@gmail.com>
---
 sound/hda/codecs/realtek/alc269.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index a9cd03bb7..ebb353a9e 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -1669,6 +1669,20 @@ static void alc295_fixup_hp_mute_led_coefbit11(struct hda_codec *codec,
 	}
 }
 
+/* Override wrong pin to NID 0x1b (F.32 BIOS reports 0x18 via DMI OEM string)
+ * on HP pavilion 15-cs1xxx laptops */
+static void alc295_fixup_hp_pavilion_mute_led_1b(struct hda_codec *codec,
+						 const struct hda_fixup *fix,
+						 int action)
+{
+	struct alc_spec *spec = codec->spec;
+
+	alc269_fixup_hp_mute_led(codec, fix, action);
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+		spec->mute_led_nid = 0x1b;
+}
+
 static void alc233_fixup_lenovo_coef_micmute_led(struct hda_codec *codec,
 				const struct hda_fixup *fix, int action)
 {
@@ -3857,6 +3871,7 @@ enum {
 	ALC290_FIXUP_SUBWOOFER,
 	ALC290_FIXUP_SUBWOOFER_HSJACK,
 	ALC295_FIXUP_HP_MUTE_LED_COEFBIT11,
+	ALC295_FIXUP_HP_PAVILION_MUTE_LED_1B,
 	ALC269_FIXUP_THINKPAD_ACPI,
 	ALC269_FIXUP_LENOVO_XPAD_ACPI,
 	ALC269_FIXUP_DMIC_THINKPAD_ACPI,
@@ -5700,6 +5715,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc295_fixup_hp_mute_led_coefbit11,
 	},
+	[ALC295_FIXUP_HP_PAVILION_MUTE_LED_1B] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc295_fixup_hp_pavilion_mute_led_1b,
+	},
 	[ALC298_FIXUP_SAMSUNG_AMP] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc298_fixup_samsung_amp,
@@ -6907,6 +6926,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8548, "HP EliteBook x360 830 G6", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x854a, "HP EliteBook 830 G6", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x85c6, "HP Pavilion x360 Convertible 14-dy1xxx", ALC295_FIXUP_HP_MUTE_LED_COEFBIT11),
+	SND_PCI_QUIRK(0x103c, 0x856a, "HP Pavilion 15-cs1xxx", ALC295_FIXUP_HP_PAVILION_MUTE_LED_1B),
 	SND_PCI_QUIRK(0x103c, 0x85de, "HP Envy x360 13-ar0xxx", ALC285_FIXUP_HP_ENVY_X360),
 	SND_PCI_QUIRK(0x103c, 0x8603, "HP Omen 17-cb0xxx", ALC285_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x860c, "HP ZBook 17 G6", ALC285_FIXUP_HP_GPIO_AMP_INIT),
-- 
2.54.0