Thus wrote Alistair John Strachan:

I discovered that either the i2c_core.ko or i2c_i801.ko modules cause the hang 
on resume! If you stop the entire i2c subsystem from being loaded by hotplug 
(note this is the BUS driver, not the sensors driver!), then resume works 
perfectly! Presumably there's a bug in the resuming of this module.

Might it be another instance of the LPC chip config space messed up on resume?
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan@hell.org.pl