[Trusty PATCH V2 0/3] fix pop and white noise problem for dell xps13 2015 model

[Hui Wang]

V2: merged the patch 0003 into the patch 0004, this will bring
less confusing since the original 0003 introudced the FIXUP for
latitude while the applying FIXUP part is dropped.

V1:
In the upstream kernel and vivid kernel, the last two patches
(0003 and 0004) introduce a regression, after applied these two
patches, the headset jack will not detect plug and unplug anymore. So
we need one more patch (831bfdf9) to fix this regression in the
upstream kernel or in the vivid kernel.

But in the Trusty kernel, the last two patches will not introduce the
regression since headset jack detection fixing patch has not been
in the trusty yet and it is not easy to backport headset jack
detection fixing patches to trusty since the patches depend on
the macro UPDATE_COEF(), to introduce UPDATE_COEF() in the trusty
kernel, the patch_realtek.c will be greatly changed.

As a result, I just send these four patches to fix noise problem.

Also please refer to upstream bug for these 2 patches:
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=99851

Gabriele Mazzotta (2):
  ALSA: hda - White noise fix for XPS13 9333
  ALSA: hda - Pop noises fix for XPS13 9333

Takashi Iwai (1):
  ALSA: hda - Fix noisy outputs on Dell XPS13 (2015 model)

 sound/pci/hda/patch_realtek.c | 62 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 61 insertions(+), 1 deletion(-)

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1.9.1