3.13-stable review patch.  If anyone has any objections, please let me know.

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

From: Hui Wang <[email protected]>

commit 5e87d5807110afd6bd659e1b98929fab43f3732f upstream.

When we plug a 3-ring headset on the Dell machine (Vendor ID:
0x10ec0255, Subsystem ID: 0x1028064d), the headset mic can't be
detected, after apply this patch, the headset mic can work well.

BugLink: https://bugs.launchpad.net/bugs/1260303
Cc: David Henningsson <[email protected]>
Tested-by: Doro Wu <[email protected]>
Signed-off-by: Hui Wang <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4284,6 +4284,7 @@ static const struct snd_pci_quirk alc269
        SND_PCI_QUIRK(0x1028, 0x063e, "Dell", 
ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x063f, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x0640, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
+       SND_PCI_QUIRK(0x1028, 0x064d, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x0651, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x0652, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
        SND_PCI_QUIRK(0x1028, 0x0653, "Dell", 
ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),


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