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-rw-r--r--drivers/gpu/drm/i915/display/intel_crtc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index a04076064f02..a39e31c1ca85 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -493,6 +493,10 @@ static void intel_crtc_vblank_evade_scanlines(struct intel_atomic_state *state,
adjusted_mode = &crtc_state->hw.adjusted_mode;
if (crtc->mode_flags & I915_MODE_FLAG_VRR) {
+ /* timing changes should happen with VRR disabled */
+ drm_WARN_ON(state->base.dev, intel_crtc_needs_modeset(new_crtc_state) ||
+ new_crtc_state->update_m_n);
+
if (intel_vrr_is_push_sent(crtc_state))
*vblank_start = intel_vrr_vmin_vblank_start(crtc_state);
else