On Wed, Jul 19, 2017 at 4:19 PM, Marc Zyngier <marc.zyngier@xxxxxxx> wrote: > On a slightly tangential subject, there is another aspect that I thought > of implementing for a while, but always ended up just relying on a quick > hack: forcing the injection of an actual interrupt. A number of > interrupt controllers have the ability to make an interrupt pending, for > it to be handled as if a device had actually triggered it. This would be especially useful for a class of embedded systems that are woken up from deep sleep by an asynchronous interrupt controller. Usually GPIO(-ish) lines are armed and the system put to sleep, and when it comes up, the information of what line woke it up is there in a special register, but the actual (synchronous) interrupt line is no longer asserted or edge triggered, so an interrupt need to be inserted. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
