[alsa-devel] [PATCH] Fix for Lenovo B50-70 inverted internal microphone bug.

[Michał Wadowski]

Add patch for realtek codec in Lenovo B50-70.
Bugzilla: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1524215

Signed-off-by: Michał Wadowski <wadosm at gmail.com>
---
 sound/pci/hda/patch_realtek.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 42cd3945e0de..36c18a5ba288 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5676,6 +5676,7 @@ enum {
 	ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE,
 	ALC233_FIXUP_LENOVO_MULTI_CODECS,
 	ALC233_FIXUP_ACER_HEADSET_MIC,
+	ALC233_FIXUP_INV_DMIC,
 	ALC294_FIXUP_LENOVO_MIC_LOCATION,
 	ALC225_FIXUP_DELL_WYSE_MIC_NO_PRESENCE,
 	ALC700_FIXUP_INTEL_REFERENCE,
@@ -6384,6 +6385,10 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc233_fixup_lenovo_line2_mic_hotkey,
 	},
+	[ALC233_FIXUP_INV_DMIC] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_inv_dmic,
+	},
 	[ALC255_FIXUP_DELL_SPK_NOISE] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_disable_aamix,
@@ -6975,6 +6980,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x313c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
+	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC233_FIXUP_INV_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3978, "IdeaPad Y410P", ALC269_FIXUP_NO_SHUTUP),
 	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
@@ -7157,6 +7163,7 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{.id = ALC256_FIXUP_ASUS_AIO_GPIO2, .name = "alc256-asus-aio"},
 	{.id = ALC233_FIXUP_ASUS_MIC_NO_PRESENCE, .name = "alc233-asus"},
 	{.id = ALC233_FIXUP_EAPD_COEF_AND_MIC_NO_PRESENCE, .name = "alc233-eapd"},
+	{.id = ALC233_FIXUP_INV_DMIC, .name = "acl233-inv-dmic"},
 	{.id = ALC294_FIXUP_LENOVO_MIC_LOCATION, .name = "alc294-lenovo-mic"},
 	{.id = ALC225_FIXUP_DELL_WYSE_MIC_NO_PRESENCE, .name = "alc225-wyse"},
 	{.id = ALC274_FIXUP_DELL_AIO_LINEOUT_VERB, .name = "alc274-dell-aio"},
-- 
2.7.4