On Sat, Dec 25, 2021 at 3:55 AM Lad Prabhakar
<prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> wrote:
>
> platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
> allocation of IRQ resources in DT core code, this causes an issue
> when using hierarchical interrupt domains using "interrupts" property
> in the node as this bypasses the hierarchical setup and messes up the
> irq chaining.
>
> In preparation for removal of static setup of IRQ resource from DT core
> code use platform_get_irq_optional().
...
> + irq = platform_get_irq_optional(ofdev, 0);
> + if (irq < 0 && irq != -ENXIO)
> + return irq;
> +
> + if (irq > 0) {
> + memset(&irq_res, 0x0, sizeof(struct resource));
Why do you need that variable at all?
0x0 -> 0
sizeof(irq_res)
> + irq_res.start = irq;
> + }
--
With Best Regards,
Andy Shevchenko
