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    Subject[PATCH 4.4 123/137] ALSA: hda - Fix headset support and noise on HP EliteBook 755 G2
    Date
    4.4-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Takashi Iwai <tiwai@suse.de>

    commit f883982dc1b117f04579f0896821cd9f2e397f94 upstream.

    HP EliteBook 755 G2 with ALC3228 (ALC280) codec [103c:221c] requires
    the known fixup (ALC269_FIXUP_HEADSET_MIC) for making the headset mic
    working. Also, it suffers from the loopback noise problem, so we
    should disable aamix path as well.

    Reported-by: Derick Eddington <derick.eddington@gmail.com>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    sound/pci/hda/patch_realtek.c | 8 ++++++++
    1 file changed, 8 insertions(+)

    --- a/sound/pci/hda/patch_realtek.c
    +++ b/sound/pci/hda/patch_realtek.c
    @@ -4758,6 +4758,7 @@ enum {
    ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY,
    ALC255_FIXUP_DELL_SPK_NOISE,
    ALC225_FIXUP_DELL1_MIC_NO_PRESENCE,
    + ALC280_FIXUP_HP_HEADSET_MIC,
    };

    static const struct hda_fixup alc269_fixups[] = {
    @@ -5394,6 +5395,12 @@ static const struct hda_fixup alc269_fix
    .chained = true,
    .chain_id = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE
    },
    + [ALC280_FIXUP_HP_HEADSET_MIC] = {
    + .type = HDA_FIXUP_FUNC,
    + .v.func = alc_fixup_disable_aamix,
    + .chained = true,
    + .chain_id = ALC269_FIXUP_HEADSET_MIC,
    + },
    };

    static const struct snd_pci_quirk alc269_fixup_tbl[] = {
    @@ -5498,6 +5505,7 @@ static const struct snd_pci_quirk alc269
    SND_PCI_QUIRK(0x103c, 0x2335, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
    SND_PCI_QUIRK(0x103c, 0x2336, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
    SND_PCI_QUIRK(0x103c, 0x2337, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
    + SND_PCI_QUIRK(0x103c, 0x221c, "HP EliteBook 755 G2", ALC280_FIXUP_HP_HEADSET_MIC),
    SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
    SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
    SND_PCI_QUIRK(0x1043, 0x115d, "Asus 1015E", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),

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