TI OMAP4 Wake-up Generator All TI OMAP4/5 (and their derivatives) an interrupt controller that routes interrupts to the GIC, and also serves as a wakeup source. It is also referred to as "WUGEN-MPU", hence the name of the binding. Required properties: - compatible : should contain at least "ti,omap4-wugen-mpu" or "ti,omap5-wugen-mpu" - reg : Specifies base physical address and size of the registers. - interrupt-controller : Identifies the node as an interrupt controller. - #interrupt-cells : Specifies the number of cells needed to encode an interrupt source. The value must be 3. Notes: - Because this HW ultimately routes interrupts to the GIC, the interrupt specifier must be that of the GIC. - Only SPIs can use the WUGEN as an interrupt parent. SGIs and PPIs are explicitly forbidden. Example: wakeupgen: interrupt-controller@48281000 { compatible = "ti,omap5-wugen-mpu", "ti,omap4-wugen-mpu"; interrupt-controller; #interrupt-cells = <3>; reg = <0x48281000 0x1000>; interrupt-parent = <&gic>; };