The PWM is broken at RK3288

[Randy Li]

Hello
   Recently, paulk told me that he meet a problem with PWM backlight at 
rk3288, I do a test at EVB board a few minutes age, it is true. The 
kernel 4.4 would work fine. So the pwm driver at next-20161020 maybe 
broken. It is too late, so I have no time to confirm whether the PWM1 
would have the same problem.
   I would look into it in the other day and see whether I could do 
something for that.
-- 
Randy Li
The third produce department