Locking in the clk API

Russell King - ARM Linux linux at arm.linux.org.uk
Fri Jan 21 04:32:18 EST 2011

On Thu, Jan 20, 2011 at 08:12:45PM -0800, Saravana Kannan wrote:
> In my opinion, the only major reason for needing atomic clk APIs was due  
> to device_ops->suspend being atomic. Since that's not the case anymore,  
> I really don't see a justification for atomic clocks. Sure, I might have  
> missed some exceptions, but in that case we should make the atomic APIs  
> an exception (add clk_enable_atomic) and not the norm.

The suspend method has never been atomic.  It has always been able to
sleep.  You're mistaken.

More information about the linux-arm-kernel mailing list