From: Ville Syrjälä <[email protected]> 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 <[email protected]> --- drivers/gpu/drm/i915/display/intel_panel.c | 19 +++++++++++++++++-- 1 file 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; -- 2.35.1
