On Mon, Sep 12, 2016 at 09:04:44PM +0800, Phidias Chiang wrote: > On Mon, Sep 12, 2016 at 12:04:01PM +0300, Mika Westerberg wrote: > > > > OK, I see what is going on now. When I changed handle_simple_irq to > > handle_bad_irq, the IRQ core in __irq_do_set_handler() thinks the > > handler is uninstalled and masks the line. > > > > If you change handle_bad_irq to handle_simple_irq, in call to > > gpiochip_irqchip_add(), does it work then? > > Yes it does :), thank you for the support! Thanks for testing. So we need to use handle_simple_irq here instead. Linus, do you see any problems with that? -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html