- The second cell is reserved and is currently unused.
- gpio-controller : Marks the device node as a GPIO controller.
- interrupt-controller: Mark the device node as an interrupt controller
-- #interrupt-cells : Should be 1. The interrupt type is fixed in the hardware.
+- #interrupt-cells : Should be 2. The interrupt type is fixed in the hardware.
- The first cell is the GPIO offset number within the GPIO controller.
+ - The second cell is the interrupt trigger type and level flags.
- interrupts: Specify the interrupt.
- altr,interrupt-type: Specifies the interrupt trigger type the GPIO
hardware is synthesized. This field is required if the Altera GPIO controller
altr,interrupt-type = <IRQ_TYPE_EDGE_RISING>;
#gpio-cells = <2>;
gpio-controller;
- #interrupt-cells = <1>;
+ #interrupt-cells = <2>;
interrupt-controller;
};