Re: drm/msm: DisplayPort hard-reset on hotplug regression in 6.8-rc1

Johan Hovold
2024-03-11T15:16:37Z

On Mon, Mar 11, 2024 at 02:43:24PM +0100, Johan Hovold wrote:

> So, while it may still be theoretically possible to hit the resets after
> the revert, the HPD notify revert effectively "fixed" the regression in
> 6.8-rc1 by removing the preconditions that now made us hit it (i.e. the
> half-initialised bridge).
>
> It seems the hotplug state machine needs to be reworked completely, but
> at least we're roughly back where we were with 6.7 (including that the
> bus clocks will never be turned of because of the rpm leaks on
> disconnect).

#regzbot introduced: e467e0bde881
#regzbot fix: 664bad6af3cb