Hi Conor, thanks for your patch! On Tue, Jul 23, 2024 at 1:28 PM Conor Dooley <conor.dooley@xxxxxxxxxxxxx> wrote: > Since the interrupt mux is going to provide us a 1:1 mapping for > interrupts, and it is no longer correct to hit all of the set bits in > the interrupt handler, store the GPIO that "owns" an interrupt in its > data pointer, so that we can determine which bit to clear. > > Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> I don't quite get this, the irqchip of the GPIO is clearly hard-coded hierarchical, then why don't you: select IRQ_DOMAIN_HIERARCHY And use e.g. girq->child_to_parent_hwirq() to handle the hierarchy? See drivers/gpio/gpio-ixp4xx.c for a simple example of a hierarchical GPIO interrupt controller. Yours, Linus Walleij
