On Fri, 27 Feb 2009, David Brownell wrote:

  drivers/mfd/twl4030-irq.c

Where you'll observe twl_init_irq() at line 688 setting
up the thread and the Primary IRQ Handler (PIH) dispatch.
That's pretty much bog-standard chained IRQ setup code,
except that it chains through a thread.

So this would be the perfect candidate to test the generic threaded
code I posted a few days ago ?

Thanks,

	tglx