[deliverable/linux.git] / Documentation / devicetree / bindings / pwm / atmel-tcb-pwm.txt

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>;
};
Commit	Line	Data
9421bade BB	1	Atmel TCB PWM controller
	2
	3	Required properties:
	4	- compatible: should be "atmel,tcb-pwm"
	5	- #pwm-cells: Should be 3. The first cell specifies the per-chip index
	6	of the PWM to use, the second cell is the period in nanoseconds and
	7	bit 0 in the third cell is used to encode the polarity of PWM output.
	8	Set bit 0 of the third cell in PWM specifier to 1 for inverse polarity &
	9	set to 0 for normal polarity.
	10	- tc-block: The Timer Counter block to use as a PWM chip.
	11
	12	Example:
	13
	14	pwm {
	15	compatible = "atmel,tcb-pwm";
	16	#pwm-cells = <3>;
	17	tc-block = <1>;
	18	};