Use the IRQ handler field that's available in the struct gpio_irq_chip when allocating an IRQ rather than hardcoding the handler to handle_bad_irq(). The kernel reboots without any messages when testing this using spmi-gpio on the Nexus 5.
Signed-off-by: Brian Masney <masn...@onstation.org> --- I didn't have time to dig into more detail about why this is happening. I suspect the issue is that __irq_do_set_handler() has a special check for handle_bad_irq: https://elixir.bootlin.com/linux/latest/source/kernel/irq/chip.c#L974 My post about this: https://lore.kernel.org/linux-gpio/20190707014620.ga9...@onstation.org/ drivers/gpio/gpiolib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 5423242deb81..bc68ebb8f40e 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1872,7 +1872,7 @@ static int gpiochip_hierarchy_irq_domain_alloc(struct irq_domain *d, hwirq + i, gc->irq.chip, gc, - handle_bad_irq, + girq->handler, NULL, NULL); irq_set_probe(irq + i); -- 2.20.1
