1 == ST SPEAr SoC PWM controller ==
4 - compatible: should be one of:
7 - reg: physical base address and length of the controller's registers
8 - #pwm-cells: should be 2. See pwm.txt in this directory for a description of
14 compatible ="st,spear320-pwm";
15 reg = <0xa8000000 0x1000>;