0426147cf7835
author malattia@linux.it <malattia@linux.it> 1176106745 +0200
committer Len Brown <len.brown@intel.com> 1176235278 -0400

sony-laptop: Prepare the platform driver for multiple users.

Both the SNC and SPIC device drivers will create attributes and thus
there's the need to have an internal usage count to avoid
re-registering or de-registering at the wrong time.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
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