[PATCH 2/2] drm/xe: Add missing HPD interrupt enabling during non-d3cold RPM resume

[Rodrigo Vivi]

On Mon, Oct 07, 2024 at 09:46:53PM +0300, Imre Deak wrote:
> On Mon, Oct 07, 2024 at 09:29:46PM +0300, Cavitt, Jonathan wrote:
> > -----Original Message-----
> > From: Intel-xe <intel-xe-bounces at lists.freedesktop.org> On Behalf Of Imre Deak
> > Sent: Monday, October 7, 2024 7:06 AM
> > To: intel-xe at lists.freedesktop.org; intel-gfx at lists.freedesktop.org
> > Cc: Vivi, Rodrigo <rodrigo.vivi at intel.com>
> > Subject: [PATCH 2/2] drm/xe: Add missing HPD interrupt enabling during non-d3cold RPM resume
> > >
> > > Atm the display HPD interrupts that got disabled during runtime
> > > suspend, are re-enabled only if d3cold is enabled. Fix things by
> > > also re-enabling the interrupts if d3cold is disabled.
> > >
> > > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > > Signed-off-by: Imre Deak <imre.deak at intel.com>
> > 
> > Is there a reason this ended up as a separate patch?
> 
> On the principle of doing one thing in one patch: the first is
> refactoring, this one is a fix.

We do need this, but we need a lot more.

Please help on the review of the consolidation and the true split:
https://lore.kernel.org/intel-xe/20240924204222.246862-1-rodrigo.vivi@intel.com/T/#m482df5716f81e6f6a3b5f459f57f193a4292ab52

> 
> > Not blocking, just curious.
> > Reviewed-by: Jonathan Cavitt <jonathan.cavitt at intel.com>
> > -Jonathan Cavitt
> > 
> > > ---
> > >  drivers/gpu/drm/xe/display/xe_display.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
> > > index cb2449b7921ac..695c27ac6b0f8 100644
> > > --- a/drivers/gpu/drm/xe/display/xe_display.c
> > > +++ b/drivers/gpu/drm/xe/display/xe_display.c
> > > @@ -486,6 +486,7 @@ void xe_display_pm_runtime_resume(struct xe_device *xe)
> > >               return;
> > >       }
> > >
> > > +     intel_hpd_init(xe);
> > >       intel_hpd_poll_disable(xe);
> > >  }
> > >
> > > --
> > > 2.44.2
> > >
> > >