TI SOC ECAP based APWM controller
Required properties:
- compatible: Must be “ti,
-ecap”.
for am33xx - compatible = “ti,am33xx-ecap”;
for da850 - compatible = “ti,da850-ecap”, “ti,am33xx-ecap”; - #pwm-cells: Should be 3. Number of cells being used to specify PWM property.
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 in PWM specifier
to 1 for inverse polarity & set to 0 for normal polarity. - reg: physical base address and size of the registers map.
Optional properties:
- ti,hwmods: Name of the hwmod associated to the ECAP:
“ecap“, being the 0-based instance number from the HW spec
Example:
ecap0: ecap@0 { /* ECAP on am33xx */
compatible = “ti,am33xx-ecap”;
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = “ecap0”;
};
ecap0: ecap@0 { /* ECAP on da850 */
compatible = “ti,da850-ecap”, “ti,am33xx-ecap”;
#pwm-cells = <3>;
reg = <0x306000 0x80>;
};
