I have i.MX6 Solo and using PWM for backlight, but with inverted logic. Low value of duty cycle means logic 1 for most time.
By POUTC bit I'm able to invert PWM's output levels.
Now in linux, when using PWM-backlight driver, when I set backlight to "0", then driver disables PWM and output is at logic 0 ( it seems that it's independent on POUTC bits) instead of full logic 1.
So is there some way how to set PWM to real "active-high" mode?When in disabled state the output pin is in high.