vga_switcheroo: Add a helper function to get the client state

Add vga_switcheroo_get_client_state() to get the current state of the
client.  This is necessary to determine the proper initial state of
audio clients in HD-audio driver.

Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Fix uninitialized HDMI controllers with VGA-switcheroo

When VGA-switcheroo is built in but unused on systems with multiple
graphics cards, the initializations of non-default graphics cards are
skipped and never enabled (because the switcheroo is activated only
when the controller supports).  The current behavior is for avoiding
the system lockup by accessing the disabled GPU, but due to the recent
change in VGA-switcheroo, it determines the state simply by checking
with the default VGA device.  This is the culprit.

Now with the new vga_switcheroo_get_client_state(), we can know the
initial state of the bound GPU, thus can determine the initial audio
client state more correctly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
vga_switcheroo: Fix error without CONFIG_VGA_SWITCHEROO

Fix a typo that is built only when CONFIG_VGA_SWITCHEROO=n.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - HDMI Audio init all connectors when VGA-switcheroo is off

When VGA_SWITCHEROO support is enabled hda_intel initialises the HDMI
audio device on the current VGA device.  When it's not enabled it only
initialises the HDMI device on the default VGA adaptor, this means
secondary cards get no audio support which is very unhelpful for
multi-seat!

With this patch, when SUPPORT_VGA_SWITCHEROO is disabled hda_intel
initialises all HDMI audio devices, not just the default VGA.

[minor optimizations by tiwai]

Signed-off-by: Steven Newbury <steve@snewbury.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
vga_switcheroo: Enable/disable audio clients at the right time

The audio clients have to be disabled before disabling the VGA and
switching.  Similarly, enabling the audio client should be done at
last.  Otherwise the audio-side operation stalls, eventually leading
to Oops or lockups.

Tested-by: Jörg-Volker Peetz <jvpeetz@web.de>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: hda - Fix detection of Creative SoundCore3D controllers

The PCI ID entries of Creative SoundCore3D HD-audio controllers should
be before the wildcard for vendor = Creative.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: compress_core: don't wake up on pause

during pause the core should maintain the status-quo on the device and pointers
and not wake up. If app needs it should call DROP explcitly.

Signed-off-by: Namarta Kohli <namartax.kohli@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: compress_core: cleanup pointers on stop

as the start can be called after stop again, we need to reset state

Signed-off-by: Namarta Kohli <namartax.kohli@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ALSA: HDA: Pin fixup for Zotac Z68 motherboard

Pin 0x1b was connected to the front panel connector, which according to
the HDA standard should contain a mic and a headphone. In this case,
the headphone was listed as "line out" by BIOS.

Cc: stable@kernel.org
BugLink: https://bugs.launchpad.net/bugs/993162
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>