[ALSA] opti93x: optimize a register access

Opti9xx drivers
When clearing some bits in a register, don't bother with the bits that
won't be changed anyway.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
This commit is contained in:
Clemens Ladisch 2005-09-05 10:36:27 +02:00 committed by Jaroslav Kysela
commit db67319ac2