| Philip, Avinash | 53ad9e8 | 2012-11-27 14:18:13 +0530 | [diff] [blame] | 1 | TI SOC EHRPWM based PWM controller |
| 2 | |
| 3 | Required properties: |
| 4 | - compatible : Must be "ti,am33xx-ehrpwm" |
| 5 | - #pwm-cells: Should be 3. Number of cells being used to specify PWM property. |
| 6 | First cell specifies the per-chip index of the PWM to use, the second |
| 7 | cell is the period in nanoseconds and bit 0 in the third cell is used to |
| 8 | encode the polarity of PWM output. Set bit 0 of the third in PWM specifier |
| 9 | to 1 for inverse polarity & set to 0 for normal polarity. |
| 10 | - reg: physical base address and size of the registers map. |
| 11 | |
| 12 | Optional properties: |
| 13 | - ti,hwmods: Name of the hwmod associated to the EHRPWM: |
| 14 | "ehrpwm<x>", <x> being the 0-based instance number from the HW spec |
| 15 | |
| 16 | Example: |
| 17 | |
| 18 | ehrpwm0: ehrpwm@0 { |
| 19 | compatible = "ti,am33xx-ehrpwm"; |
| 20 | #pwm-cells = <3>; |
| 21 | reg = <0x48300200 0x100>; |
| 22 | ti,hwmods = "ehrpwm0"; |
| 23 | }; |