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Sigma Designs Tango IR NEC/RC-5/RC-6 decoder (SMP86xx and SMP87xx)

Required properties:

- compatible: "sigma,smp8642-ir"
- reg: address/size of NEC+RC5 area, address/size of RC6 area
- interrupts: spec for IR IRQ
- clocks: spec for IR clock (typically the crystal oscillator)

Optional properties:

- linux,rc-map-name: see Documentation/devicetree/bindings/media/rc.txt

Example:

	ir@10518 {
		compatible = "sigma,smp8642-ir";
		reg = <0x10518 0x18>, <0x105e0 0x1c>;
		interrupts = <21 IRQ_TYPE_EDGE_RISING>;
		clocks = <&xtal>;
	};