[PATCH] radeon: Use mdelay() instead of msleep() in atom_op_delay().

[Alan Cox]

On Tue,  3 Jan 2012 19:04:00 +0100
Michel Dänzer <michel at daenzer.net> wrote:

> From: Michel Dänzer <michel.daenzer at amd.com>
> 
> It can be called from atomic context, e.g. when switching to console for panic
> output.

Is this only special cases like a panic - if so can it not be called in a
way that distinguishes between normality and nasty cases. mS plus spin
loops are horrendous for anyone trying to do real time, or even for
keeping the clock straight.