[Trusty PATCH 0/4] fix pop and white noise problem for dell xps13 2015 model

[Hui Wang]

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 (2):
  ALSA: hda - Fix audio crackles on Dell Latitude E7x40
  ALSA: hda - Fix noisy outputs on Dell XPS13 (2015 model)

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

-- 
1.9.1