[ALSA] Add missing models for Dell with STAC9200 codec

Added the missing description of models for Dell machines with
STAC9200 HD-audio codec chip.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 96bf25c..2329b88 100644 (file)
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -958,6 +958,9 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
        STAC9200
          ref           Reference board
+         dell-d21      Dell (unknown)
+         dell-d22      Dell (unknown)
+         dell-d23      Dell (unknown)
          dell-m21      Dell Inspiron 630m, Dell Inspiron 640m
          dell-m22      Dell Latitude D620, Dell Latitude D820
          dell-m23      Dell XPS M1710, Dell Precision M90