[PATCH] ALSA: hda/realtek: Add quirk for mute LEDs on HP ENVY x360 15-eu0xxx

[Fabian Vogt <fabian@ritter-vogt.de>]

The LED for the mic mute button is controlled by GPIO2.
The mute button LED is slightly more complex, it's controlled by two bits
in coeff 0x0b. Add a fixup for the mute LED and chain to an existing fixup
for the mic mute LED.

Signed-off-by: Fabian Vogt <fabian@ritter-vogt.de>
---
Applies on top of 89bf6209cad6.

I see that SungHwan Jung (CC'd) recently submitted the same fixup for
a rather similar but different model as
"ALSA: hda/realtek: Add quirk for HP Victus 16-d1xxx to enable mute LED"
Does your HP Victus also need the ALC245_FIXUP_HP_GPIO_LED? Then we could
combine the quirks.

 sound/pci/hda/patch_realtek.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index dc7b7a407638..cac207d7c0b9 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4639,6 +4639,24 @@ static void alc236_fixup_hp_mute_led_coefbit2(struct hda_codec *codec,
 	}
 }
 
+/* The mute LED is controlled by two bits in coef 0x0b:
+ * To turn on, set bit 3 but clear bit 2.
+ */
+static void alc245_fixup_hp_x360_mute_led(struct hda_codec *codec,
+				      const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		spec->mute_led_polarity = 0;
+		spec->mute_led_coef.idx = 0x0b;
+		spec->mute_led_coef.mask = 0xc;
+		spec->mute_led_coef.on = 0x8;
+		spec->mute_led_coef.off = 0x4;
+		snd_hda_gen_add_mute_led_cdev(codec, coef_mute_led_set);
+	}
+}
+
 /* turn on/off mic-mute LED per capture hook by coef bit */
 static int coef_micmute_led_set(struct led_classdev *led_cdev,
 				enum led_brightness brightness)
@@ -7231,6 +7249,7 @@ enum {
 	ALC295_FIXUP_DELL_INSPIRON_TOP_SPEAKERS,
 	ALC236_FIXUP_DELL_DUAL_CODECS,
 	ALC287_FIXUP_CS35L41_I2C_2_THINKPAD_ACPI,
+	ALC245_FIXUP_HP_X360_MUTE_LED,
 };
 
 /* A special fixup for Lenovo C940 and Yoga Duet 7;
@@ -9309,6 +9328,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
 	},
+	[ALC245_FIXUP_HP_X360_MUTE_LED] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc245_fixup_hp_x360_mute_led,
+		.chained = true,
+		.chain_id = ALC245_FIXUP_HP_GPIO_LED
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -9551,6 +9576,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8870, "HP ZBook Fury 15.6 Inch G8 Mobile Workstation PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x8873, "HP ZBook Studio 15.6 Inch G8 Mobile Workstation PC", ALC285_FIXUP_HP_GPIO_AMP_INIT),
 	SND_PCI_QUIRK(0x103c, 0x887a, "HP Laptop 15s-eq2xxx", ALC236_FIXUP_HP_MUTE_LED_COEFBIT2),
+	SND_PCI_QUIRK(0x103c, 0x888a, "HP ENVY x360 Convertible 15-eu0xxx", ALC245_FIXUP_HP_X360_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x888d, "HP ZBook Power 15.6 inch G8 Mobile Workstation PC", ALC236_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8895, "HP EliteBook 855 G8 Notebook PC", ALC285_FIXUP_HP_SPEAKERS_MICMUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x8896, "HP EliteBook 855 G8 Notebook PC", ALC285_FIXUP_HP_MUTE_LED),
-- 
2.41.0