From: Ville Syrjälä ville.syrjala@linux.intel.com
Use drm_dp_downstream_mode() to get a suitable mode for downstream facing ports which don't have an EDID.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/i915/display/intel_dp.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 047449253a54..2798621a466a 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6310,7 +6310,7 @@ static int intel_dp_get_modes(struct drm_connector *connector) }
/* if eDP has no EDID, fall back to fixed mode */ - if (intel_dp_is_edp(intel_attached_dp(to_intel_connector(connector))) && + if (intel_dp_is_edp(intel_attached_dp(intel_connector)) && intel_connector->panel.fixed_mode) { struct drm_display_mode *mode;
@@ -6322,6 +6322,19 @@ static int intel_dp_get_modes(struct drm_connector *connector) } }
+ if (!edid) { + struct intel_dp *intel_dp = intel_attached_dp(intel_connector); + struct drm_display_mode *mode; + + mode = drm_dp_downstream_mode(connector->dev, + intel_dp->dpcd, + intel_dp->downstream_ports); + if (mode) { + drm_mode_probed_add(connector, mode); + return 1; + } + } + return 0; }