> > - even when you ignore the interrupt (because the driver doesn't care, > > it's suspending), you need to make sure the hardware gets shut up by > > reading (or writing) the proper interrupt status register. > I agree, but while device is powered off, its registers can't be accessed > Thus, if I ack the IRQ every time the handler is called, I will access the > powered off device (this is probably won't hurt a lot, but a bit incorrectly)
It will actually crash your machine on some platforms. So no, best is to -not- ack. The masking is enough, the IRQ will go down eventually. Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
