1 Freescale MXS PWM controller
4 - compatible: should be "fsl,imx23-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 duty cycle in nanoseconds.
8 - fsl,pwm-number: the number of PWM devices
13 compatible = "fsl,imx28-pwm", "fsl,imx23-pwm";
14 reg = <0x80064000 2000>;