Commit 76c2ff3e broke backlight on Chromebook snow

[Simon Glass]

Hi,

On Fri, 22 Oct 2021 at 05:38, Dario Binacchi <dariobin at libero.it> wrote:
>
> Hi Guillaume,
>
> > Il 21/10/2021 16:47 Guillaume GARDET <guillaume.gardet at free.fr> ha scritto:
> >
> >
> > Hi,
> >
> > Commit 76c2ff3e [0] broke backlight on Chromebook snow.
> > A revert on top of 2021.10 restores the backlight.
> > Not sure why it breaks on Chromebook snow yet. Dario, any idea how to fix this?
>
> Is it possible that max_level is equal to min_level and therefore division
> by zero is done?'

I got this running in my lab now and sent a possible fix.

Regards,
Simon