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During modeset enable sequence, program the fixed timings, and turn on the VRR Timing Generator (VRR TG) for platforms that always use VRR TG. For this intel_vrr_set_transcoder now always programs fixed timings. Later if vrr timings are required, vrr_enable() will switch to the real VRR timings. For platforms that will always use VRR TG, the VRR_CTL Enable bit is set and reset in the transcoder enable/disable path. v2: Update intel_vrr_set_transcoder_timings for fixed_rr. v3: Update intel_set_transcoder_timings_lrr for fixed_rr. (Ville) v4: Have separate functions to enable/disable VRR CTL v5: -For platforms that do not always have VRRTG on, do write bits other than enable bit and also use write the TRANS_VRR_PUSH register. (Ville) -Avoid writing trans_ctl_vrr if !vrr_possible(). v6: -Disable VRR just before intel_ddi_disable_transcoder_func(). (Ville) -Correct the sequence of configuring PUSH and VRR Enable/Disable. (Ville) v7: Reset trans_vrr_ctl to 0 unconditionally in intel_vrr_transcoder_disable(). (Ville) v8: Reset trans_vrr_ctl if flipline is not set. (Ville) Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://lore.kernel.org/r/20250324133248.4071909-9-ankit.k.nautiyal@intel.com