Re: Locking in the clk API
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2011-01-21 23:23:30
Also in:
linux-arm-kernel, lkml
On Fri, 2011-01-21 at 14:28 -0800, Colin Cross wrote:
Clocks that have a voltage dependency, or depend on a clock that has a voltage dependency, are non-atomic, everything else is atomic. PLLs are atomic because they lock very fast (300 uS or 1ms)
Some could argue that this is still way too slow for atomic context :-) Cheers, Ben.