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: number of cells used to specify PWM which is fixed to 2 on
9 SPEAr. The first cell specifies the per-chip index of the PWM to use and
10 the second cell is the period in nanoseconds.
15 compatible ="st,spear320-pwm";
16 reg = <0xa8000000 0x1000>;