From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Jul 2011 13:01:13 +0000 (+0200)
Subject: ALSA: hda - More flexible dynamic-ADC switching for Realtek codecs
X-Git-Tag: v3.1-rc1~271^2^2~35
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21268961d3d1bbdd22a19b68adb80119e8c72dcd;p=pandora-kernel.git

ALSA: hda - More flexible dynamic-ADC switching for Realtek codecs

This patch changes the auto-parser and the auto-mic handling codes to
allow more flexible dynamic ADC-switching with Realtek codecs.

In the new code, the following strategy is taken:

- When a cap-src can't handle all input-sources, either skip it, or
  switch to the ADC-switching mode.  In ADC-switching mode, like the
  former dual-ADC mode for ALC275, it changes ADC on the fly according
  to the current input source.
- When auto-mic is possible, always assign imux.  If the mic pins are
  set statically via a quirk, rebuild imux according to the pins.
  In the auto-mic mode, the driver always changes the imux (although
  the imux isn't exposed as a mixer element).

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