[alsa-devel] [PATCH] [ALSA] hda: Correct EAPD for Dell Inspiron 1525

Takashi Iwai tiwai at suse.de
Mon Aug 3 08:50:35 CEST 2009

At Sat, 1 Aug 2009 19:11:17 +0800,
Chengu Wang wrote:
> >From 3dfb54666d0940bff474be9db791603f81c46303 Mon Sep 17 00:00:00 2001
> From: Chengu Wang <wangchengu at gmail.com>
> Date: Thu, 30 Jul 2009 19:43:55 +0800
> Subject: [PATCH] [ALSA] hda: Correct EAPD for Dell Inspiron 1525
> The commit 24918b61b55c21e09a3e07cd82e1b3a8154782dc statically changes
> the model from dell-bios to dell-3stack to solve the sound decreasing
> regression (http://lkml.org/lkml/2008/9/12/203), however it leads to another
> problem that the 2nd headphone jack doesn't work
> (https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3987). So I think
> the commit 249**2dc is just a workaround. I would like to give a true solution
> here.
> The datasheet for STAC9228 says, GPIO2 is the same pin as VOL DOWN, and
> the EAPD pin is GPIO0. This is why the sound decreases if we set EAPD as
> GPIO2. This patch changes EAPD to GPIO0 to solve the problem.
> Signed-off-by: Chengu Wang <wangchengu at gmail.com>

Applied now.  Thanks.


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