Re: [PATCH v2] pinctrl: samsung: add irq_set_affinity() for non wake up external gpio interrupt

[Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>]

On 26/11/2023 10:46, Youngmin Nam wrote:
> To support affinity setting for non wake up external gpio interrupt,
> add irq_set_affinity callback using irq number from pinctrl driver data.
> 
> Before this patch, changing the irq affinity of gpio interrupt is not possible:
> 
>     # cat /proc/irq/418/smp_affinity
>     3ff
>     # echo 00f > /proc/irq/418/smp_affinity

Does this command succeed on your board?

>     # cat /proc/irq/418/smp_affinity
>     3ff
>     # cat /proc/interrupts
>                CPU0       CPU1       CPU2       CPU3    ...
>     418:       3631          0          0          0    ...
> 
> With this patch applied, it's possible to change irq affinity of gpio interrupt:

...

On which board did you test it?


> +	if (parent)
> +		return parent->chip->irq_set_affinity(parent, dest, force);
> +

I think there is a  helper for it: irq_chip_set_affinity_parent().


Best regards,
Krzysztof