On Tue, Oct 30, 2018 at 11:34:41AM +0100, Enric Balletbo i Serra wrote:
Commit '88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye")' allows the possibility to compute a default brightness table when there isn't the brightness-levels property in the DT. Unfortunately the changes made broke the pwm backlight for the non-DT boards.
Usually, the non-DT boards don't pass the brightness levels via platform data, instead, it sets the max_brightness in their platform data and the driver calculates the level without a table. The ofending patch assumed
s/ofending/offending/
hat when there is no brightness levels table we should create one, but this
s/hat/that/
is clearly wrong for the non-DT case.
After this patch the code handles the DT and the non-DT case taking in consideration also if max_brightness is set or not.
Fixes: '88ba95bedb79 ("backlight: pwm_bl: Compute brightness of LED linearly to human eye")'
These ' are unusual.
Best regards Uwe