Quoting Geert Uytterhoeven (2019-10-01 11:07:43)
> As platform_get_irq() now prints an error when the interrupt does not
> exist, scary warnings may be printed for optional interrupts:
>
> sh-sci e6550000.serial: IRQ index 1 not found
> sh-sci e6550000.serial: IRQ index 2 not found
> sh-sci e6550000.serial: IRQ index 3 not found
> sh-sci e6550000.serial: IRQ index 4 not found
> sh-sci e6550000.serial: IRQ index 5 not found
>
> Fix this by calling platform_get_irq_optional() instead for all but the
> first interrupts, which are optional.
>
> Fixes: 7723f4c5ecdb8d83 ("driver core: platform: Add an error message to platform_get_irq*()")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> ---
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
