ALSA: hda - Add a fix-up for Acer dmic with ALC271x codec

Acer laptops with ALC271x needs a magic initialization for digital-mic
to make it working with mono streams (and PulseAudio).
Added a fix-up applied to Acer with ALC271x generically.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 24 insertions, 1 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index d9f1ef7dac2e..30c4409211f2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -14868,6 +14868,23 @@ static void alc269_fixup_hweq(struct hda_codec *codec,
         alc_write_coef_idx(codec, 0x1e, coef | 0x80);
 }
 
+static void alc271_fixup_dmic(struct hda_codec *codec,
+                              const struct alc_fixup *fix, int action)
+{
+        static struct hda_verb verbs[] = {
+                {0x20, AC_VERB_SET_COEF_INDEX, 0x0d},
+                {0x20, AC_VERB_SET_PROC_COEF, 0x4000},
+                {}
+        };
+        unsigned int cfg;
+
+        if (strcmp(codec->chip_name, "ALC271X"))
+                return;
+        cfg = snd_hda_codec_get_pincfg(codec, 0x12);
+        if (get_defcfg_connect(cfg) == AC_JACK_PORT_FIXED)
+                snd_hda_sequence_write(codec, verbs);
+}
+
 enum {
         ALC269_FIXUP_SONY_VAIO,
         ALC275_FIXUP_SONY_VAIO_GPIO2,
@@ -14876,6 +14893,7 @@ enum {
         ALC269_FIXUP_ASUS_G73JW,
         ALC269_FIXUP_LENOVO_EAPD,
         ALC275_FIXUP_SONY_HWEQ,
+        ALC271_FIXUP_DMIC,
 };
 
 static const struct alc_fixup alc269_fixups[] = {
@@ -14929,7 +14947,11 @@ static const struct alc_fixup alc269_fixups[] = {
                 .v.func = alc269_fixup_hweq,
                 .chained = true,
                 .chain_id = ALC275_FIXUP_SONY_VAIO_GPIO2
-        }
+        },
+        [ALC271_FIXUP_DMIC] = {
+                .type = ALC_FIXUP_FUNC,
+                .v.func = alc271_fixup_dmic,
+        },
 };
 
 static struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -14938,6 +14960,7 @@ static struct snd_pci_quirk alc269_fixup_tbl[] = {
         SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
         SND_PCI_QUIRK_VENDOR(0x104d, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
         SND_PCI_QUIRK(0x1028, 0x0470, "Dell M101z", ALC269_FIXUP_DELL_M101Z),
+        SND_PCI_QUIRK_VENDOR(0x1025, "Acer Aspire", ALC271_FIXUP_DMIC),
         SND_PCI_QUIRK(0x17aa, 0x20f2, "Thinkpad SL410/510", ALC269_FIXUP_SKU_IGNORE),
         SND_PCI_QUIRK(0x17aa, 0x215e, "Thinkpad L512", ALC269_FIXUP_SKU_IGNORE),
         SND_PCI_QUIRK(0x17aa, 0x21b8, "Thinkpad Edge 14", ALC269_FIXUP_SKU_IGNORE),