unused).
- gpio-controller: Marks the device node as a GPIO controller.
+optional properties:
+- #gpio-lines: Number of gpio if absent 32.
+
+
Example:
pioA: gpio@fffff200 {
compatible = "atmel,at91rm9200-gpio";
interrupts = <2 4>;
#gpio-cells = <2>;
gpio-controller;
+ #gpio-lines = <19>;
};