1TI SOC ECAP based APWM controller 2 3Required properties: 4- compatible: Must be "ti,<soc>-ecap". 5 for am33xx - compatible = "ti,am33xx-ecap"; 6 for da850 - compatible = "ti,da850-ecap", "ti,am33xx-ecap"; 7- #pwm-cells: Should be 3. Number of cells being used to specify PWM property. 8 First cell specifies the per-chip index of the PWM to use, the second 9 cell is the period in nanoseconds and bit 0 in the third cell is used to 10 encode the polarity of PWM output. Set bit 0 of the third in PWM specifier 11 to 1 for inverse polarity & set to 0 for normal polarity. 12- reg: physical base address and size of the registers map. 13 14Optional properties: 15- ti,hwmods: Name of the hwmod associated to the ECAP: 16 "ecap<x>", <x> being the 0-based instance number from the HW spec 17 18Example: 19 20ecap0: ecap@0 { /* ECAP on am33xx */ 21 compatible = "ti,am33xx-ecap"; 22 #pwm-cells = <3>; 23 reg = <0x48300100 0x80>; 24 ti,hwmods = "ecap0"; 25}; 26 27ecap0: ecap@0 { /* ECAP on da850 */ 28 compatible = "ti,da850-ecap", "ti,am33xx-ecap"; 29 #pwm-cells = <3>; 30 reg = <0x306000 0x80>; 31}; 32