tree dfaa6317d64d5f0acfa5ae3afed1614d27ec1bb3
parent 52b5deefbbd7493092b1cbc35da09e0e2ad46cca
author Takashi Iwai <tiwai@suse.de> 1249976850 +0200
committer Takashi Iwai <tiwai@suse.de> 1249976850 +0200

ALSA: hda - Check connectivity for auto-mic of Realtek codecs

Some Realtek codecs don't provide the full connections for certain pins
from each ADC; e.g. ACL662/ALC272 gives only one of two digital-mic pins
for each ADC.  Thus, depending on the digital mic pin, the ADC/MUX to be
used has to be chosen properly.

This patch adds the check of the connectivity of pins at auto-mic mode.
If no proper connectivity is found, auto_mic flag is turned off to be
sure.

Also the mux_idx is determined during this check so it won't be checked
in the unsol event any more.

Signed-off-by: Takashi Iwai <tiwai@suse.de>