On Fri, Sep 26, 2014 at 2:20 PM, Grygorii Strashko <[email protected]> wrote: > On 09/26/2014 02:52 PM, Linus Walleij wrote: >> If the IRQ from the parent is nested the IRQ may need to be >> resent under certain conditions. Currently the chained IRQ >> handler in gpiolib does not handle connecting nested IRQs > > Seems there is still some misunderstanding ( - chained vs nested IRQs
Yeah trying to hash it out... >> but it is conceptually correct to indicate the actual parent >> IRQ. >> >> Reported-by: Grygorii Strashko <[email protected]> > > + Reported-by: Lothar Waßmann <[email protected]> OK. >> if (gpiochip->can_sleep) { >> chip_err(gpiochip, "you cannot have chained interrupts on a >> chip that may sleep\n"); >> return; >> } > > > This function can't be called by gpio-pca953x.c driver ( Yeah I'm toying around with solutions for this... > May be some simple helper can be added instead: > void gpiochip_set_nested_irqchip(struct gpio_chip *gpiochip, > int parent_irq) That's one option. I'm trying to come up with something that duplicates as little code as possible. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
