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drm/i915/vrr: Refactor condition for computing vmax and LRR

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LRR and Vmax can be computed only if VRR is supported and vrr.in_range
is set. Currently we proceed with vrr timings only for VRR supporting
panels and return otherwise. For using VRR TG with fix timings, need to
continue even for panels that do not support VRR.

To achieve this, refactor the condition for computing vmax and
update_lrr so that we can continue for fixed timings for panels that do
not support VRR.

v2: Set vmax = vmin for non VRR panels. (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/20250324133248.4071909-6-ankit.k.nautiyal@intel.com
This commit is contained in:
Ankit Nautiyal 2025-03-24 19:02:37 +05:30
parent 9c29a0dd8c
commit 660d1c6385
1 changed files with 8 additions and 6 deletions
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14
drivers/gpu/drm/i915/display/intel_vrr.c
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@ -365,14 +365,16 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
crtc_state->vrr.in_range =
intel_vrr_is_in_range(connector, drm_mode_vrefresh(adjusted_mode));
if (!crtc_state->vrr.in_range)
return;
if (HAS_LRR(display))
crtc_state->update_lrr = true;
vmin = intel_vrr_compute_vmin(crtc_state);
vmax = intel_vrr_compute_vmax(connector, adjusted_mode);
if (crtc_state->vrr.in_range) {
if (HAS_LRR(display))
crtc_state->update_lrr = true;
vmax = intel_vrr_compute_vmax(connector, adjusted_mode);
} else {
vmax = vmin;
}
if (vmin >= vmax)
return;