Instead of setting vrr.guardband to vblank, use optimal guardband that works for most of the cases. This will help in avoiding need of change in guardband and fix the LRR feature that needs seamless switching to a lower refresh rate.
Rev2: - Drop patch to check guardband in crtc_check phase, instead check guardband for SDP in compute_config_late. - Modify the helper to get the min sdp guardband if all SDPs are assumed to be enabled. - Rename the helpers to get min guardband for sdp and psr. Rev3: - Drop the squashed patches as the dependency changes are already merged. - Avoid optimized guardband for HDMI for now. - Allow support for optmized guardband only to platforms that always have VRR TG active in the main patch. - Add a separate patch for extending support for optimized guardband to other platforms whenever VRR TG gets enabled. Rev4: - Address review comments from Jouni and Ville. Ankit Nautiyal (5): drm/i915/psr: Add helper to get min psr guardband drm/i915/dp: Add helper to get min sdp guardband drm/i915/dp: Check if guardband can accommodate sdp latencies drm/i915/vrr: Use the min static optimized guardband drm/i915/vrr: Use optimized guardband whenever VRR TG is active drivers/gpu/drm/i915/display/intel_dp.c | 58 ++++++++++++++++++++++++ drivers/gpu/drm/i915/display/intel_dp.h | 2 + drivers/gpu/drm/i915/display/intel_psr.c | 27 +++++++++++ drivers/gpu/drm/i915/display/intel_psr.h | 1 + drivers/gpu/drm/i915/display/intel_vrr.c | 56 ++++++++++++++++++++++- 5 files changed, 142 insertions(+), 2 deletions(-) -- 2.45.2
