From e7729a415315fcd9516912050d85d5aaebcededc Mon Sep 17 00:00:00 2001
From: =?utf8?q?Adrien=20Verg=C3=A9?= <adrienverge@gmail.com>
Date: Fri, 24 Jan 2014 14:56:14 -0500
Subject: [PATCH] ALSA: hda - Fix silent output on MacBook Air 1,1
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Similarly to other Apple products, MBA 1,1 needs a specific quirk.
Pin 0x18 must be set to VREF_50 to have sound output.  This was no
longer done since commit 1a97b7f, resulting in a mute built-in speaker.

This patch corrects the regression by creating a fixup for the MBA 1,1.

Fixes: 1a97b7f22774 ("ALSA: hda/realtek - Remove the last static quirks for ALC882")
Cc: <stable@vger.kernel.org> [v3.4+]
Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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