ALSA: hda - Fix headphone noise after Dell XPS 13 resume back from S3

commit 8c69729b4439bbda88c3073df7243f755cc418ed upstream.

We have a machine Dell XPS 13 with the codec alc256, after resume back
from S3, the headphone has noise when play sound.

Through comparing with the coeff vaule before and after S3, we found
restoring a coeff register will help remove noise.

BugLink: https://bugs.launchpad.net/bugs/1519168
Cc: Kailang Yang <kailang@realtek.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e78193d905d939486364b9795b284bd52fda3201..379ece8c3afc490be4e7fa11c35af52786b5a220 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4318,6 +4318,7 @@ enum {
        ALC292_FIXUP_TPT440_DOCK,
        ALC292_FIXUP_TPT440_DOCK2,
        ALC275_FIXUP_DELL_XPS,
+       ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -4781,6 +4782,17 @@ static const struct hda_fixup alc269_fixups[] = {
                        {}
                }
        },
+       [ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE] = {
+               .type = HDA_FIXUP_VERBS,
+               .v.verbs = (const struct hda_verb[]) {
+                       /* Disable pass-through path for FRONT 14h */
+                       {0x20, AC_VERB_SET_COEF_INDEX, 0x36},
+                       {0x20, AC_VERB_SET_PROC_COEF, 0x1737},
+                       {}
+               },
+               .chained = true,
+               .chain_id = ALC255_FIXUP_DELL1_MIC_NO_PRESENCE
+       },
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -4845,6 +4857,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
        SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x06d9, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x06da, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1028, 0x0704, "Dell XPS 13", ALC256_FIXUP_DELL_XPS_13_HEADPHONE_NOISE),
        SND_PCI_QUIRK(0x1028, 0x164a, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x164b, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),