[ALSA] intel8x0 - Add buggy_semaphore option

Documentation,Intel8x0 driver
Added buggy_semaphore module option to snd-intel8x0 driver
for a workaround for hardwards with buggy codec semaphores.

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 57e82a5..13cba95 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -805,7 +805,11 @@
     ac97_quirk    - AC'97 workaround for strange hardware
 		    See "AC97 Quirk Option" section below.
     buggy_irq     - Enable workaround for buggy interrupts on some
-                    motherboards (default off)
+                    motherboards (default yes on nForce chips,
+		    otherwise off)
+    buggy_semaphore - Enable workaround for hardwares with buggy
+		    semaphores (e.g. on some ASUS laptops)
+		    (default off)
 
     Module supports autoprobe and multiple bus-master chips (max 8).