This patch enables the additional init verbs for each codec.  The verbs
can be entered via hwdep sysfs file.  These verbs are executed at
reconfiguring the codec for non-standard setups like overriding
the pin-defcfg.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Added the sysfs entries to hwdep devices so that the new features
like reconfiguration can be done via sysfs.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

Replace CONFIG_SND_DEBUG_DETECT with CONFIG_SND_DEBUG_VERBOSE to
represent its meaning more better.  This config isn't provided only
for the detection but for more verbose debug prints in general.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

This header file exists only for some hacks to adapt alsa-driver
tree.  It's useless for building in the kernel.  Let's move a few
lines in it to sound/core.h and remove it.
With this patch, sound/driver.h isn't removed but has just a single
compile warning to include it.  This should be really killed in
future.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>

Fix missing cast:
    sound/pci/hda/hda_hwdep.c:86: warning: passing argument 4 of 'hda_hwdep_ioctl' makes integer from pointer without a cast
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>

Added a hwdep interface for each codec (enabled per kconfig).
This interface can be used for reading/writing HD-audio verbs
and other purposes as future extensions.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@suse.cz>