[ALSA] Add description for ALC260 codec

Modules: Documentation

Added description for ALC260 codec models in hda-intel driver section.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 13cba95..09340cb 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -663,6 +663,10 @@
 			adjusted.  Appearing only when compiled with
 			$CONFIG_SND_DEBUG=y
 
+	ALC260
+	  hp		HP machines
+	  fujitsu	Fujitsu S7020
+
 	CMI9880
 	  minimal	3-jack in back
 	  min_fp	3-jack in back, 2-jack in front