Re: [PATCH] Video : Amba: Use in_interrupt() in clcdfb_sleep().

As I've said, if we aren't going to use this, then the only solution is
to completely omit the msleep() there and just say "sod you to running
anything else for 20ms while this driver busy-spins."  That's
ultimately the safe thing to do, and at the moment I see no other
alternative there.

Anyone having this argument is also right now peeing into the wind. Quite
a few console drivers do this including some the big name x86 ones. We
don't seem to be getting any resulting problem reports.

Architecturally we really need a way to help console drivers separate the
civilised acceleration friendly, lock friendly output paths from printk.
That's the real fix, but a whole different matter to solve cleanly.

Alan