interrupt client node or in any of its parent nodes. Interrupts listed in the
"interrupts" property are always in reference to the node's interrupt parent.
-The "interrupts-extended" property is a special form for use when a node needs
-to reference multiple interrupt parents. Each entry in this property contains
-both the parent phandle and the interrupt specifier. "interrupts-extended"
-should only be used when a device has multiple interrupt parents.
+The "interrupts-extended" property is a special form; useful when a node needs
+to reference multiple interrupt parents or a different interrupt parent than
+the inherited one. Each entry in this property contains both the parent phandle
+and the interrupt specifier.
Example:
interrupts-extended = <&intc1 5 1>, <&intc2 1 0>;