gpio: etraxfs: add interrupt support
On ETRAX FS, all pins on the first port (and only the first port) have
interrupt support.
On ARTPEC-3, all pins on all ports have interrupt support. However,
there are only eight interrupts. Each of the interrupts is associated
with a group of pins and for each interrupt the one pin from the group
which will trigger it can be selected.
Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3a9dc1a..37d9418 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -171,6 +171,7 @@
depends on CRIS || COMPILE_TEST
depends on OF
select GPIO_GENERIC
+ select GPIOLIB_IRQCHIP
help
Say yes here to support the GPIO controller on Axis ETRAX FS SoCs.