[Marvel-linux] i2c

[Leon v. S. <le...@ia...>]

Hi

Anybody know why 'they' decided to make i2c not interrupt safe? A normal
spin_lock is used for locking the bus, which means i2c can't be used
from isr's, bh's, or timers.
Anyway, currently, mgavideo.c does i2c accesses from a bh and a timer...
maybe there are other places too, i haven't checked that yet.

Btw, some fixes are now in cvs which should make it easier to get driver
working on smp systems. It's a first set of fixes, and you'll have to
comment to lines in mgavideo to prevent e.g. xawtv from hanging. I'll be
hunting more smp issues the coming time ;-)

<leon/>