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ALSA: hda - Set GPIO 4 low for a few HP machines
authorDavid Henningsson <david.henningsson@canonical.com>
Thu, 30 Oct 2014 07:26:01 +0000 (08:26 +0100)
committerTakashi Iwai <tiwai@suse.de>
Thu, 30 Oct 2014 07:59:52 +0000 (08:59 +0100)
These HP machines needs GPIO 4 low to enable the headphone amplifier.
In addition, we still need to control LEDs via vref and GPIO.

Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/bugs/1387128
Tested-by: TienFu Chen <tienfu.chen@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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