diff options
| author | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-06-09 08:23:25 +0530 |
|---|---|---|
| committer | Ankit Nautiyal <ankit.k.nautiyal@intel.com> | 2026-06-12 08:55:22 +0530 |
| commit | b28c1929d75821b29c49c284ec3dc4d0e23c193f (patch) | |
| tree | a69d684dd2e66751e8540a583f6d2f16231a1ccc | |
| parent | 485356a428b09d4ca864abfce4d3050eee8e16c7 (diff) | |
drm/i915/panel: Preserve Vtotal-Vsync distance while adjusting vtotal
As we increase the vtotal to accommodate lower resfresh rate for fixed
modes, adjust the vtotal-vsync distance also.
v2: Rename vsync_*_diff to vsync_*_offset for clarity. (Ville)
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260609025325.1128543-3-ankit.k.nautiyal@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_panel.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c index 20c548eea6da..81fb349ece5f 100644 --- a/drivers/gpu/drm/i915/display/intel_panel.c +++ b/drivers/gpu/drm/i915/display/intel_panel.c @@ -237,11 +237,18 @@ int intel_panel_compute_config(struct intel_connector *connector, drm_mode_copy(adjusted_mode, fixed_mode); - if (is_vrr && fixed_mode_vrefresh != vrefresh) + if (is_vrr && fixed_mode_vrefresh != vrefresh) { + int vsync_start_offset = adjusted_mode->vtotal - adjusted_mode->vsync_start; + int vsync_end_offset = adjusted_mode->vtotal - adjusted_mode->vsync_end; + adjusted_mode->vtotal = DIV_ROUND_CLOSEST(adjusted_mode->clock * 1000, adjusted_mode->htotal * vrefresh); + adjusted_mode->vsync_start = adjusted_mode->vtotal - vsync_start_offset; + adjusted_mode->vsync_end = adjusted_mode->vtotal - vsync_end_offset; + } + drm_mode_set_crtcinfo(adjusted_mode, 0); return 0; |