| Boris BREZILLON | 9421bad | 2013-01-08 16:36:42 +0100 | [diff] [blame] | 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 | }; |