* Cirris Logic CLPS711X PWM controller

Required properties:
- compatible: Shall contain "cirrus,ep7209-pwm".
- reg: Physical base address and length of the controller's registers.
- clocks: phandle + clock specifier pair of the PWM reference clock.
- #pwm-cells: Should be 1. The cell specifies the index of the channel.

Example:
	pwm: pwm@80000400 {
		compatible = "cirrus,ep7312-pwm", "cirrus,ep7209-pwm";
		reg = <0x80000400 0x4>;
		clocks = <&clks 8>;
		#pwm-cells = <1>;
	};
