> -----Original Message-----
> From: Jani Nikula <[email protected]>
> Sent: Monday, January 5, 2026 2:53 PM
> To: Garg, Nemesa <[email protected]>; [email protected];
> [email protected]
> Cc: Garg, Nemesa <[email protected]>
> Subject: Re: [PATCH] drm/i915/display: Disable casf with joiner
>
> On Mon, 05 Jan 2026, Nemesa Garg <[email protected]> wrote:
> > Currently pipe scaling is not supported with the joiner. As casf
> > requires pipe scaling, fail the atomic commit whenever joiner comes
> > into picture.
> >
> > Signed-off-by: Nemesa Garg <[email protected]>
> > ---
> > drivers/gpu/drm/i915/display/intel_casf.c | 5 +++++
> > 1 file changed, 5 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_casf.c
> > b/drivers/gpu/drm/i915/display/intel_casf.c
> > index 95339b496f24..259bc50d5ed8 100644
> > --- a/drivers/gpu/drm/i915/display/intel_casf.c
> > +++ b/drivers/gpu/drm/i915/display/intel_casf.c
> > @@ -116,6 +116,11 @@ int intel_casf_compute_config(struct
> intel_crtc_state *crtc_state)
> > return 0;
> > }
> >
> > + if (crtc_state->joiner_pipes) {
> > + drm_WARN(display->drm, 0, "CASF not supported with
> joiner\n");
>
> With a backtrace?!
>
Will change to drm_dbg_kms as here intention was to flag out that it is not
supported.
Regards,
Nemesa
> > + return -EINVAL;
> > + }
> > +
> > crtc_state->hw.casf_params.casf_enable = true;
> >
> > /*
>
> --
> Jani Nikula, Intel
