linux-kernel - [PATCH 5.6 139/194] ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA

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Date:   Mon, 18 May 2020 19:37:09 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de>
Subject: [PATCH 5.6 139/194] ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA

From: Takashi Iwai <tiwai@...e.de>

commit 1b94e59d30afecf18254ad413e953e7587645a20 upstream.

ASUS ZenBook UX431DA requires an additional COEF setup when booted
from the recent Windows 10, otherwise it produces the noisy output.
The quirk turns on COEF 0x1b bit 10 that has been cleared supposedly
due to the pop noise reduction.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207553
Cc: <stable@...r.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Link: https://lore.kernel.org/r/20200512073203.14091-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@...e.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5978,6 +5978,7 @@ enum {
 	ALC294_FIXUP_ASUS_DUAL_SPK,
 	ALC285_FIXUP_THINKPAD_HEADSET_JACK,
 	ALC294_FIXUP_ASUS_HPE,
+	ALC294_FIXUP_ASUS_COEF_1B,
 	ALC285_FIXUP_HP_GPIO_LED,
 };
 
@@ -7112,6 +7113,17 @@ static const struct hda_fixup alc269_fix
 		.chained = true,
 		.chain_id = ALC294_FIXUP_ASUS_HEADSET_MIC
 	},
+	[ALC294_FIXUP_ASUS_COEF_1B] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			/* Set bit 10 to correct noisy output after reboot from
+			 * Windows 10 (due to pop noise reduction?)
+			 */
+			{ 0x20, AC_VERB_SET_COEF_INDEX, 0x1b },
+			{ 0x20, AC_VERB_SET_PROC_COEF, 0x4e4b },
+			{ }
+		},
+	},
 	[ALC285_FIXUP_HP_GPIO_LED] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc285_fixup_hp_gpio_led,
@@ -7283,6 +7295,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x1043, 0x19ce, "ASUS B9450FA", ALC294_FIXUP_ASUS_HPE),
 	SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW),
 	SND_PCI_QUIRK(0x1043, 0x1a30, "ASUS X705UD", ALC256_FIXUP_ASUS_MIC),
+	SND_PCI_QUIRK(0x1043, 0x1b11, "ASUS UX431DA", ALC294_FIXUP_ASUS_COEF_1B),
 	SND_PCI_QUIRK(0x1043, 0x1b13, "Asus U41SV", ALC269_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x1bbd, "ASUS Z550MA", ALC255_FIXUP_ASUS_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1043, 0x1c23, "Asus X55U", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),