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drm/i915/vrr: Disable VRR when using bigjoiner 

commit dcd8992e47 upstream.

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.

Cc: stable@vger.kernel.org
Tested-by: Vidya Srinivas <vidya.srinivas@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240404213441.17637-6-ville.syrjala@linux.intel.com
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit f9d5e51db6)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ville Syrjälä 2024-04-05 00:34:29 +03:00 committed by Greg Kroah-Hartman
parent 88685c3e7d
commit f9b31dfdc0
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/i915/display/intel_vrr.c
View File

@ -111,6 +111,13 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
if (!intel_vrr_is_capable(connector))
return;
/*
* 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;