On Tue, Nov 22, 2016 at 6:55 PM, Thierry Reding <thierry.reding@xxxxxxxxx> wrote: > From: Thierry Reding <treding@xxxxxxxxxx> > > Tegra186 has two GPIO controllers that are largely register compatible > between one another but are completely different from the controller > found on earlier generations. > > Signed-off-by: Thierry Reding <treding@xxxxxxxxxx> I would prefer if you could try to convert this driver to use CONFIG_GPIOLIB_IRQCHIP and install a chained interrupt handler with gpiochip_irqchio_add() + gpiolib_set_chained_irqchip(). It would save us so much trouble and so much complicated code to maintain for this custom irqdomain. I suggest you to look into the mechanisms mentioned in my previous mail for how to poke holes in the single linear irqdomain used by this mechanism. As it seems, you only have one parent interrupt with all these IRQs cascading off it as far as I can tell. Yours, Linus Walleij -- 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