[PATCH 04/22] drm/i915/vrr: Disable VRR when using bigjoiner

[Kulkarni, Vandita]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Ville
> Syrjala
> Sent: Friday, March 29, 2024 6:43 AM
> To: intel-gfx at lists.freedesktop.org
> Subject: [PATCH 04/22] drm/i915/vrr: Disable VRR when using bigjoiner
> 
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> All joined pipes share the same transcoder/timing generator.
> Currently we just do the commits per-pipe, which doesn't really work if we
> need to change switch between non-VRR and VRR timings generators on the
> fly, or even when sending the push to the transcoder. For now just disable
> VRR when bigjoiner is needed.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
> ---

LGTM.
Reviewed-by: Vandita Kulkarni <vandita.kulkarni at intel.com>

>  drivers/gpu/drm/i915/display/intel_vrr.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c
> b/drivers/gpu/drm/i915/display/intel_vrr.c
> index eb5bd0743902..f542ee1db1d9 100644
> --- a/drivers/gpu/drm/i915/display/intel_vrr.c
> +++ b/drivers/gpu/drm/i915/display/intel_vrr.c
> @@ -117,6 +117,13 @@ intel_vrr_compute_config(struct intel_crtc_state
> *crtc_state,
>  	const struct drm_display_info *info = &connector-
> >base.display_info;
>  	int vmin, vmax;
> 
> +	/*
> +	 * FIXME all joined pipes share the same transcoder.
> +	 * Need to account for that during VRR toggle/push/etc.
> +	 */
> +	if (crtc_state->bigjoiner_pipes)
> +		return;
> +
>  	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
>  		return;
> 
> --
> 2.43.2