[ALSA] add TempoTec HiFier driver

Add a driver for the MediaTek/TempoTec HiFier Fantasia sound card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 07317da..67256bd4 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -1092,6 +1092,15 @@
 
     See hdspm.txt for details.
 
+  Module snd-hifier
+  -----------------
+
+    Module for the MediaTek/TempoTec HiFier Fantasia sound card.
+
+    This module supports autoprobe and multiple cards.
+
+    Power management is _not_ supported.
+
   Module snd-ice1712
   ------------------