1 files changed, 11 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 56a8f1876603..d9693ca9546f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1821,6 +1821,7 @@ enum {
         ALC889_FIXUP_IMAC91_VREF,
         ALC889_FIXUP_MBA11_VREF,
         ALC889_FIXUP_MBA21_VREF,
+        ALC889_FIXUP_MP11_VREF,
         ALC882_FIXUP_INV_DMIC,
         ALC882_FIXUP_NO_PRIMARY_HP,
         ALC887_FIXUP_ASUS_BASS,
@@ -2190,6 +2191,12 @@ static const struct hda_fixup alc882_fixups[] = {
                 .chained = true,
                 .chain_id = ALC889_FIXUP_MBP_VREF,
         },
+        [ALC889_FIXUP_MP11_VREF] = {
+                .type = HDA_FIXUP_FUNC,
+                .v.func = alc889_fixup_mba11_vref,
+                .chained = true,
+                .chain_id = ALC885_FIXUP_MACPRO_GPIO,
+        },
         [ALC882_FIXUP_INV_DMIC] = {
                 .type = HDA_FIXUP_FUNC,
                 .v.func = alc_fixup_inv_dmic_0x12,
@@ -2253,7 +2260,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
         SND_PCI_QUIRK(0x106b, 0x00a0, "MacBookPro 3,1", ALC889_FIXUP_MBP_VREF),
         SND_PCI_QUIRK(0x106b, 0x00a1, "Macbook", ALC889_FIXUP_MBP_VREF),
         SND_PCI_QUIRK(0x106b, 0x00a4, "MacbookPro 4,1", ALC889_FIXUP_MBP_VREF),
-        SND_PCI_QUIRK(0x106b, 0x0c00, "Mac Pro", ALC885_FIXUP_MACPRO_GPIO),
+        SND_PCI_QUIRK(0x106b, 0x0c00, "Mac Pro", ALC889_FIXUP_MP11_VREF),
         SND_PCI_QUIRK(0x106b, 0x1000, "iMac 24", ALC885_FIXUP_MACPRO_GPIO),
         SND_PCI_QUIRK(0x106b, 0x2800, "AppleTV", ALC885_FIXUP_MACPRO_GPIO),
         SND_PCI_QUIRK(0x106b, 0x2c00, "MacbookPro rev3", ALC889_FIXUP_MBP_VREF),
@@ -4427,6 +4434,9 @@ static void alc269_fill_coef(struct hda_codec *codec)
 
         if (spec->codec_variant != ALC269_TYPE_ALC269VB)
                 return;
+        /* ALC271X doesn't seem to support these COEFs (bko#52181) */
+        if (!strcmp(codec->chip_name, "ALC271X"))
+                return;
 
         if ((alc_get_coef0(codec) & 0x00ff) < 0x015) {
                 alc_write_coef_idx(codec, 0xf, 0x960b);