Kernel-3.10.0-957.el7_atmel-tcb-pw

Atmel TCB PWM controller

Required properties:

• compatible: should be “atmel,tcb-pwm”
• #pwm-cells: Should be 3. The first cell specifies the per-chip index
  of the PWM to use, the second cell is the period in nanoseconds and
  bit 0 in the third cell is used to encode the polarity of PWM output.
  Set bit 0 of the third cell in PWM specifier to 1 for inverse polarity &
  set to 0 for normal polarity.
• tc-block: The Timer Counter block to use as a PWM chip.

Example:

pwm {
compatible = “atmel,tcb-pwm”;
#pwm-cells = <3>;
tc-block = <1>;
};