Re: v4.17-rc1: regressions on N900, N950

From: Pavel Machek
Date: Thu May 24 2018 - 04:54:30 EST


Hi!

> > > So... I did some experiments on v4.16.
> > >
> > > Swapping tsc2005@0 and lcd: acx565akm@2 entries in the dts does break
> > > stuff.
> > >
> > > I thought it might be due to vio regulator, but it does not appear
> > > so... screen still works with tsc2005 driver disabled in .config. (so
> > > there's noone to enable vio regulator).
> >
> > Deleting tsc2005@0 entry also breaks screen.
> >
> > Replacing tsc2005@0 entry with
> >
> > foobar@0 {
> > compatible = "not really with anything";
> > spi-max-frequency = <6000000>;
> > reg = <0>;
> > };
> >
> > still results in working touchscreen, removing any of the three fields
> > breaks it again.
>
> I bisected one regression down, see "omapdrm regression in v4.17-rc series"
> not sure if it covers all the issues being discussed here though.

Reverting 24aac6011f70 fixes screen on n900 in v4.17-rc for me. (But
strange dependency on tsc2005@0 is still there).

Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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