Berlin PWM controllerRequired properties:- compatible: should be "marvell,berlin-pwm"- reg: physical base address and length of the controller's registers- clocks: phandle to the input clock- #pwm-cells: should be 3. See pwm.txt in this directory for a description of the cells format.Example:pwm: pwm@f7f20000 { compatible = "marvell,berlin-pwm"; reg = <0xf7f20000 0x40>; clocks = <&chip_clk CLKID_CFG>; #pwm-cells = <3>;}