Re: [PATCH 1/3] gpio: tqmx86: really make IRQ optional
From: Andy Shevchenko
Date: Wed Mar 31 2021 - 08:30:20 EST
On Wed, Mar 31, 2021 at 2:37 PM Matthias Schiffer
<matthias.schiffer@xxxxxxxxxxxxxxx> wrote:
>
> The tqmx86 MFD driver was passing IRQ 0 for "no IRQ" in the past. This
> causes warnings with newer kernels.
>
> Prepare the gpio-tqmx86 driver for the fixed MFD driver by handling a
> missing IRQ properly.
...
> - irq = platform_get_irq(pdev, 0);
> - if (irq < 0)
> + irq = platform_get_irq_optional(pdev, 0);
> + if (irq < 0 && irq != -ENXIO)
> return irq;
This is a dead code now. I suggest you to do the opposite, i.e.
if (irq < 0)
irq = 0;
In such a case below change is not required.
...
> - if (irq) {
> + if (irq > 0) {
> struct irq_chip *irq_chip = &gpio->irq_chip;
> u8 irq_status;
--
With Best Regards,
Andy Shevchenko