RE: [PATCH 10/10] drm/i915/xe3lpd: Add powerdown value of eDP over type c

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> -----Original Message-----
> From: Atwood, Matthew S <matthew.s.atwood@xxxxxxxxx>
> Sent: Thursday, October 10, 2024 4:35 AM
> To: Kandpal, Suraj <suraj.kandpal@xxxxxxxxx>
> Cc: intel-xe@xxxxxxxxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; Kandpal,
> Suraj <suraj.kandpal@xxxxxxxxx>
> Subject: Re: [PATCH 10/10] drm/i915/xe3lpd: Add powerdown value of eDP
> over type c
> 
> On Wed, Oct 09, 2024 at 10:57:03AM +0300, Jani Nikula wrote:
> > On Tue, 08 Oct 2024, Matt Atwood <matthew.s.atwood@xxxxxxxxx> wrote:
> > > From: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> > >
> > > Add condition for P2.PG power down value.
> > >
> > > Bspec: 74494
> > > Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> > > Signed-off-by: Matt Atwood <matthew.s.atwood@xxxxxxxxx>
> > > ---
> > >  drivers/gpu/drm/i915/display/intel_cx0_phy.c | 3 ++-
> > >  1 file changed, 2 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> > > index 1c8c2a2b05e1..3d95ee65a9f1 100644
> > > --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> > > +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c
> > > @@ -3144,7 +3144,8 @@ static u8 cx0_power_control_disable_val(struct
> intel_encoder *encoder)
> > >  	if (intel_encoder_is_c10phy(encoder))
> > >  		return CX0_P2PG_STATE_DISABLE;
> > >
> > > -	if (IS_BATTLEMAGE(i915) && encoder->port == PORT_A)
> > > +	if ((IS_BATTLEMAGE(i915) && encoder->port == PORT_A) ||
> > > +	    (DISPLAY_VER(i915) >= 30 && encoder->type ==
> INTEL_OUTPUT_EDP))
> > >  		return CX0_P2PG_STATE_DISABLE;
> >
> > Does this match what the subject says?

True it should have been Add condition for EDP to powerdown P2.PG

Regards,
Suraj Kandpal
> Please address Jani's comments
> >
> > BR,
> > Jani.
> >
> > >
> > >  	return CX0_P4PG_STATE_DISABLE;
> >
> > --
> > Jani Nikula, Intel




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