diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-10-03 14:32:48 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-10-04 17:47:46 +0300 |
| commit | d1af925ba062d78580a98ed8b1a013c0ac2b54ae (patch) | |
| tree | 3540f95225e115ac742d166d9f68775e89a5c427 /drivers/gpu/drm/i915/display/intel_panel.c | |
| parent | 9519c86523ea136e981ceff30489cdb7b2ecae08 (diff) | |
| download | linux-d1af925ba062d78580a98ed8b1a013c0ac2b54ae.tar.gz linux-d1af925ba062d78580a98ed8b1a013c0ac2b54ae.tar.bz2 linux-d1af925ba062d78580a98ed8b1a013c0ac2b54ae.zip | |
drm/i915: Tighten DRRS capability reporting
Only report DRRS capability for the connector if its fixed_modes
list contains at least two modes capable of seamless DRRS switch
between them.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221003113249.16213-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_panel.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c index 41cec9dc4223..d18c56cf957d 100644 --- a/drivers/gpu/drm/i915/display/intel_panel.c +++ b/drivers/gpu/drm/i915/display/intel_panel.c @@ -147,10 +147,25 @@ int intel_panel_get_modes(struct intel_connector *connector) return num_modes; } +static bool has_drrs_modes(struct intel_connector *connector) +{ + const struct drm_display_mode *mode1; + + list_for_each_entry(mode1, &connector->panel.fixed_modes, head) { + const struct drm_display_mode *mode2 = mode1; + + list_for_each_entry_continue(mode2, &connector->panel.fixed_modes, head) { + if (is_alt_drrs_mode(mode1, mode2)) + return true; + } + } + + return false; +} + enum drrs_type intel_panel_drrs_type(struct intel_connector *connector) { - if (list_empty(&connector->panel.fixed_modes) || - list_is_singular(&connector->panel.fixed_modes)) + if (!has_drrs_modes(connector)) return DRRS_TYPE_NONE; return connector->panel.vbt.drrs_type; |