drm/radeon/kms: fix shared ddc handling

[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / drivers / gpu / drm / radeon / radeon_connectors.c

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 0c7ccc6961a353758628d7a84ec9a843b837f7f1..f58f8bd8f77b0c7f2fc984130d83cfbb3a40c591 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -785,7 +785,9 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect
                                        if (connector == list_connector)
                                                continue;
                                        list_radeon_connector = to_radeon_connector(list_connector);
-                                       if (radeon_connector->devices == list_radeon_connector->devices) {
+                                       if (list_radeon_connector->shared_ddc &&
+                                           (list_radeon_connector->ddc_bus->rec.i2c_id ==
+                                            radeon_connector->ddc_bus->rec.i2c_id)) {
                                                if (drm_detect_hdmi_monitor(radeon_connector->edid)) {
                                                        if (connector->connector_type == DRM_MODE_CONNECTOR_DVID) {
                                                                kfree(radeon_connector->edid);