On Wed, Jun 6, 2018 at 11:18 AM, Keerthy [off-list ref] wrote:

Currently the driver assumes that the interrupts are continuous
and does platform_get_irq only once and assumes the rest are continuous,
instead call platform_get_irq for all the interrupts and store them
in an array for later use.

Signed-off-by: Keerthy <j-keerthy@ti.com>

Hm! Thierry has recently submitted patches to make it easier for chips with
banked IRQs to use the GPIOLIB_IRQCHIP.

Please look at the code in gpio/gpio-tegra186.c and see if you can use
his approach.

As you can see this chip is using gpiochip_irq_map/unmap in its
domain, and manipulates struct gpio_irq_chip directly.

I think the idea is to make it possible to use GPIOLIB_IRQCHIP
for banked IRQs but the infrastructure is not yet inside the gpiolib
so it is a bit taped on the side right now.

Yours,
Linus Walleij