Re: [PATCH] drm/bridge: fix anx6345 power up sequence

From: Torsten Duwe
Date: Thu Apr 28 2022 - 11:58:34 EST


On Mon, 18 Apr 2022 17:25:57 -0700
Vasily Khoruzhick <anarsoul@xxxxxxxxx> wrote:

> On Sun, Apr 17, 2022 at 11:52 AM Vasily Khoruzhick
> <anarsoul@xxxxxxxxx> wrote:

> > The change looks good to me, but I'll need some time to actually
> > test it. If you don't hear from me for longer than a week please
> > ping me.
>
> Your change doesn't fix the issue for me. Running "xrandr --output
> eDP-1 --off; xrandr --output eDP-1 --auto" in a loop triggers the
> issue pretty quickly even with the patch.

Nope, even that works fine here. Side question: how do you initially
power on the eDP bridge? Could there be any leftovers from that
mechanism? I use a hacked-up U-Boot with a procedure similar to the
kernel driver as fixed by this change.

But the main question is: does this patch in any way worsen the
situation on the pinebook?

Torsten