Hi!
> If the trigger with given configuration cannot be offloaded, the method
> should return -EOPNOTSUPP, in which case the trigger must blink the LED
> in SW.
>
> Signed-off-by: Marek Behún
> +
> +If the second argument (enable) to the trigger_offload() method is false, any
> +active HW offlo
Add method trigger_offload() and member variable `offloaded` to struct
led_classdev. Add helper functions led_trigger_offload() and
led_trigger_offload_stop().
The trigger_offload() method, when implemented by the LED driver, should
be called (via led_trigger_offload() function) from trigger code
