Hi Marc,

On Thu, 30 Sept 2021 at 22:53, Marc Zyngier [off-list ref] wrote:

Somehow, the handler for this interrupt is set to handle_bad_irq(),
which probably isn't what you want. You'll have to find out who sets
this (there is a comment about that in gpiolib.c, but I haven't had a
chance to find where this is coming from).

Do you happen to set it in your driver?

The gpio driver (gpio-msc313.c) sets it during probe:

gpioirqchip = &gpiochip->irq;
gpioirqchip->chip = &msc313_gpio_irqchip;
gpioirqchip->fwnode = of_node_to_fwnode(dev->of_node);
gpioirqchip->parent_domain = parent_domain;
gpioirqchip->child_to_parent_hwirq = match_data->child_to_parent_hwirq;
gpioirqchip->populate_parent_alloc_arg = match_data->populate_parent_fwspec;
gpioirqchip->handler = handle_bad_irq;
gpioirqchip->default_type = IRQ_TYPE_NONE;

Cheers,

Daniel