[Intel-gfx] [PATCH v4-CI] drm/i915/psr: Force PSR probe only after full initialization

[Ross Zwisler]

On Thu, Feb 27, 2020 at 03:18:26PM +0200, Jani Nikula wrote:
> On Fri, 21 Feb 2020, José Roberto de Souza <jose.souza at intel.com> wrote:
> > Commit 60c6a14b489b ("drm/i915/display: Force the state compute phase
> > once to enable PSR") was forcing the state compute too earlier
> > causing errors because not everything was initialized, so here
> > moving to the end of i915_driver_modeset_probe() when the display is
> > all initialized.
> 
> Hmph, really not happy about the placement here. These are high level
> functions, not a dumping ground for random feature specific hacks. :(

Should we just revert 

60c6a14b489b ("drm/i915/display: Force the state compute phase once to enable PSR")

and try to land a fixed-up version in the next kernel cycle?  The current
state is that my machine is completely unable to boot because of this issue,
and I've confirmed that the above patch reverts cleanly and fixes the issue.