From: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Date: Fri, 21 Sep 2012 23:45:19 +0000 (-0300)
Subject: ALSA: hda/via - don't report presence on HPs with no presence support
X-Git-Tag: v3.7-rc1~81^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf55e904516947597d75fd3844acc24891a95772;p=pandora-kernel.git

ALSA: hda/via - don't report presence on HPs with no presence support

If headphone jack can't detect plug presence, and we have the jack in
the jack table, snd_hda_jack_detect will return the plug as always
present (as it'll be considered as a phantom jack). The problem is that
when this happens, line out pins will always be disabled, resulting in
no sound if there are no headphones connected.

This was reported as a no sound problem after suspend on
http://bugs.launchpad.net/bugs/1052499, since the bug doesn't manifests
on first initialization before the phantom jack is added, but on resume
we reexecute the initialization code, and via_hp_automute starts
reporting HP always present with the jack now on the table.

BugLink: https://bugs.launchpad.net/bugs/1052499
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
Cc: <stable@vger.kernel.org> [v3.6+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

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