diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-05-04 18:04:40 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-05-05 18:27:53 +0300 |
| commit | 949665a6e237a6fd49ff207e3876d71b20b7e9f2 (patch) | |
| tree | 240993349ef9802d1a00e9a0b20be830a6be0dd2 /drivers/gpu/drm/i915 | |
| parent | drm/i915/bios: Parse the seamless DRRS min refresh rate (diff) | |
| download | linux-dev-949665a6e237a6fd49ff207e3876d71b20b7e9f2.tar.xz linux-dev-949665a6e237a6fd49ff207e3876d71b20b7e9f2.zip | |
drm/i915: Respect VBT seamless DRRS min refresh rate
Make sure our choice of downclock mode respects the VBT
seameless DRRS min refresh rate limit.
v2: s/vrefesh/vrefresh/ (Jani)
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504150440.13748-10-ville.syrjala@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_panel.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c index 03398feb6676..d1d1b59102d6 100644 --- a/drivers/gpu/drm/i915/display/intel_panel.c +++ b/drivers/gpu/drm/i915/display/intel_panel.c @@ -75,13 +75,17 @@ const struct drm_display_mode * intel_panel_downclock_mode(struct intel_connector *connector, const struct drm_display_mode *adjusted_mode) { + struct drm_i915_private *i915 = to_i915(connector->base.dev); const struct drm_display_mode *fixed_mode, *best_mode = NULL; - int vrefresh = drm_mode_vrefresh(adjusted_mode); + int min_vrefresh = i915->vbt.seamless_drrs_min_refresh_rate; + int max_vrefresh = drm_mode_vrefresh(adjusted_mode); /* pick the fixed_mode with the lowest refresh rate */ list_for_each_entry(fixed_mode, &connector->panel.fixed_modes, head) { - if (drm_mode_vrefresh(fixed_mode) < vrefresh) { - vrefresh = drm_mode_vrefresh(fixed_mode); + int vrefresh = drm_mode_vrefresh(fixed_mode); + + if (vrefresh >= min_vrefresh && vrefresh < max_vrefresh) { + max_vrefresh = vrefresh; best_mode = fixed_mode; } } |