The GPIO controller also serves as an interrupt controller for events on the GPIO it handles. An interrupt occurs whenever a GPIO line has changed. Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxx> --- arch/mips/boot/dts/mscc/ocelot.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/boot/dts/mscc/ocelot.dtsi b/arch/mips/boot/dts/mscc/ocelot.dtsi index d7f0e3551500..afe8fc9011ea 100644 --- a/arch/mips/boot/dts/mscc/ocelot.dtsi +++ b/arch/mips/boot/dts/mscc/ocelot.dtsi @@ -168,6 +168,9 @@ gpio-controller; #gpio-cells = <2>; gpio-ranges = <&gpio 0 0 22>; + interrupt-controller; + interrupts = <13>; + #interrupt-cells = <2>; uart_pins: uart-pins { pins = "GPIO_6", "GPIO_7"; -- 2.14.1