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

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


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