On Mon, Feb 15, 2021 at 1:17 PM Hector Martin <marcan@xxxxxxxxx> wrote:
> +
> + The 2nd cell contains the interrupt number.
> + - HW IRQs: interrupt number
> + - FIQs:
> + - 0: physical HV timer
> + - 1: virtual HV timer
> + - 2: physical guest timer
> + - 3: virtual guest timer
I wonder if you could just model the FIQ as a single shared level interrupt
(which is essentially what it is), and have every driver that uses it do a
request_irq() on the same IRQ number.
This would avoid having to come up with a fake binding for it, and simplify
the implementation that then no longer has to peek into each interrupt
source.
Arnd
