Patch "ALSA: hda/realtek - change the location for one of two front microphones" has been added to the 4.12-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    ALSA: hda/realtek - change the location for one of two front microphones

to the 4.12-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-realtek-change-the-location-for-one-of-two-front-microphones.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From f33f79f3d0e5caf04dd889cd7cf636261970f009 Mon Sep 17 00:00:00 2001
From: Hui Wang <hui.wang@canonical.com>
Date: Fri, 7 Jul 2017 12:08:29 +0800
Subject: ALSA: hda/realtek - change the location for one of two front microphones

From: Hui Wang <hui.wang@canonical.com>

commit f33f79f3d0e5caf04dd889cd7cf636261970f009 upstream.

On this Lenovo machine, there are two front mics, and both of them are
assigned the same name "Mic", but pulseaudio can't support two mics
with the same name, as a workaround, we change the location for one of
them, then the driver will assign "Front Mic" and "Mic" for them.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/pci/hda/patch_realtek.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4964,6 +4964,7 @@ enum {
 	ALC233_FIXUP_ASUS_MIC_NO_PRESENCE,
 	ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE,
 	ALC233_FIXUP_LENOVO_MULTI_CODECS,
+	ALC294_FIXUP_LENOVO_MIC_LOCATION,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -5737,6 +5738,18 @@ static const struct hda_fixup alc269_fix
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc233_alc662_fixup_lenovo_dual_codecs,
 	},
+	[ALC294_FIXUP_LENOVO_MIC_LOCATION] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* Change the mic location from front to right, otherwise there are
+			   two front mics with the same name, pulseaudio can't handle them.
+			   This is just a temporary workaround, after applying this fixup,
+			   there will be one "Front Mic" and one "Mic" in this machine.
+			 */
+			{ 0x1a, 0x04a19040 },
+			{ }
+		},
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -5918,6 +5931,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x17aa, 0x2233, "Thinkpad", ALC292_FIXUP_TPT460),
 	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+	SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),


Patches currently in stable-queue which might be from hui.wang@canonical.com are

queue-4.12/alsa-hda-realtek-change-the-location-for-one-of-two-front-microphones.patch