1 Freescale i.MX PWM controller
4 - compatible: should be "fsl,<soc>-pwm"
5 - reg: physical base address and length of the controller's registers
6 - #pwm-cells: should be 2. The first cell specifies the per-chip index
7 of the PWM to use and the second cell is the period in nanoseconds.
8 - interrupts: The interrupt for the pwm controller
14 compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
15 reg = <0x53fb4000 0x4000>;