On Mon, Aug 20, 2012 at 12:40 AM, Felipe Balbi [off-list ref] wrote:

no workqueues, please either handle the IRQ here or use threaded_irqs.

again, no workqueues.

Felipe,

I am seeing all sorts of deadlocks now, after removing the workqueue
(patch V2).  Some have easy fixes, but for others it is not as
obvious.  The code was much simpler when I could just trigger a
deferred worker function.

Workqueues are used in at91_udc, lpc32xx_udc, mv_udc_core, and
pch_udc.  Could you please clarify why it is not OK to use one in
bcm63xx_udc?

Thanks.