Broadcom Kona PWM controller device tree bindingsThis controller has 6 channels.Required Properties :- compatible: should contain "brcm,kona-pwm"- reg: physical base address and length of the controller's registers- clocks: phandle + clock specifier pair for the external clock- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format.Refer to clocks/clock-bindings.txt for generic clock consumer properties.Example:pwm: pwm@3e01a000 { compatible = "brcm,bcm11351-pwm", "brcm,kona-pwm"; reg = <0x3e01a000 0xc4>; clocks = <&pwm_clk>; #pwm-cells = <3>;};