• Simon Glass's avatar
    panel: Expand the backlight support · a4f737a9
    Simon Glass authored
    At present the panel can be turned on but not off, and the brightness
    cannot be controlled at run-time. Add a new API function to both the panel
    and backlight uclasses to handle this. Enhance the PWM backlight driver
    to deal with custom levels properly and allow the backlight to be turned
    on and off.
    Update the test to cover thes new features.
    Signed-off-by: Simon Glass's avatarSimon Glass <sjg@chromium.org>