beaglebone black pwm pin can't find duty, period, ...

I am trying to use the pin P8_13 for pwm. When I load the overlay I the power file is created but no duty, period, … files are created. I am clearly doing something wrong. I can’t use the universal overlay because I can’t figure out how to load a one wire device in the universal overlay. With the universal overlay the pwm works perfectly.

I am using kernel 3.8.13-bone70

My overlay is as follows:

/ {
compatible = “ti,beaglebone”, “ti,beaglebone-black”;

/* identification */
part-number = “BREW_PWM_P8_13”;

/* state the resources this cape uses /
exclusive-use =
the pin header uses /
the hardware IP uses */

fragment@0 {
target = <&am33xx_pinmux>;
overlay {
brew_pwm_P8_13: pinmux_brew_pwm_P8_13 {
pinctrl-single,pins = <0x024 0x24>;

fragment@1 {
target = <&ocp>;
overlay {
brewery_pwm_P8_13 {
compatible = “pwm_brew”;
pwms = <&ehrpwm2 1 500000 0>;
pwm-names = “PWM_P8_13”;
pinctrl-names = “pwm”;
pinctrl-0 = <&brew_pwm_P8_13>;
enabled = <1>;
duty = <0>;
status = “okay”;

when I load the overlay dmesg shows the overlay was accepted

the directory for the pwm pin is created and it has
modalias: a file
power: a directory
subsystem: a link
uevent: a file

I can’t find the duty, period, … files that are needed to control the pwm.

Any guidance would be appreciated.

Hi Ray!