Re: [REGRESSION] Missing IRQ via amd_gpio

[Thorsten Leemhuis]

Hi Takashi! Thx for CCing the regression list.

On 22.04.22 15:03, Takashi Iwai wrote:
> Hi,
> 
> we received a bug report for 5.17.3 kernel showing a new error:
> 
>  amd_gpio AMDI0030:00: Failed to translate GPIO pin 0x003D to IRQ, err -517
> 
> Not only an error message but in practice this leads to a missing IRQ
> assignment; the IRQ 27 is no longer assigned to amd_gpio driver.
> 
> As the error number (EPROBE_DEFER) indicates, this seems to be the
> side-effect of the recent fix, the upstream commit 5467801f1fcb
> ("gpio: Restrict usage of GPIO chip irq members before
> initialization").  As far as I understand, the problem is in
> acpi_gpiochip_request_interrupts() call that is called from
> gpiochip_add_irqchip() itself.  Since it's called before the
> initialized flag set, it always fails now.
> 
> Below is a temporary quick fix and it seems working.  But I'm not sure
> whether I overlooked something obvious...

A patch that afaics will fix this hopefully should get merged really
soon now:

https://lore.kernel.org/all/20220422131452.20757-1-mario.limonciello@xxxxxxx/

See also v1:

https://lore.kernel.org/all/20220414025705.598-1-mario.limonciello@xxxxxxx/

Ciao, Thorsten