[Openchrome-devel] [PATCH][DRM] msleep is not recommended for times under 20ms, use usleep_range instead

[Mario J. Rugiero]

Please review this one carefully, as the range I chose was mostly a 
guesstimate of what was originally intended. Maybe a narrower range is 
required, or a wider one can be used. As stated in the documentation on 
timers, narrow ranges increase the risk of raising an interruption when 
the time is up, so a wider one should help performance.