ALSA: hda - Add missing description in HD-Audio-Models.txt
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index 5efacf0..1d38b0d 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -125,6 +125,7 @@
macpro MacPro support
mb5 Macbook 5,1
macmini3 Macmini 3,1
+ mba21 Macbook Air 2,1
mbp3 Macbook Pro rev3
imac24 iMac 24'' with jack detection
imac91 iMac 9,1