On Thu, Jul 25, 2013 at 11:45:33AM +0200, Laurent Pinchart wrote: > The two devices are independent, so there's no real parent/child > relationship. > However, as Grant proposed, I could list all the interrupts associated with > GPIOs in the GPIO controller DT node. I would then just call > irq_of_parse_and_map() in the .to_irq() handler to magically translate the > GPIO number to a mapped IRQ number.
> The number of interrupts can be pretty high (up to 58 in the worst case so > far), so an alternative would be to specify the interrupt-parent only, and > call irq_create_of_mapping() directly. What solution would you prefer ? Are the interrupts in a contiguous block in the controller so you can just pass around the controller and a base number?
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