<dhruvag2000>
@pivi: The way we've been doing it in SDK by doing IRQ chaining has always been a bit hacky [1]. There's no plans ATM to upstream that hack. Why is it a hack? Well no padconfig interrupts are ever sent to the A53, directly or indirectly. So there's no clean way in linux to do IRQ chaining and configuring the wakeup. See [1] for further explanation. So, the approach that makes more sense is to support a wakeup pinctrl state.