rockchip: drmhwc2: skip disconnected DSI by default

Signed-off-by: hmz007 <hmz007@gmail.com>

hardware/rockchip/hwcomposer/drmhwc2/drm/drmdevice.cpp

@@ -652,6 +652,15 @@ std::tuple<int, int> DrmDevice::Init(int num_displays) {
       break;
     }
 
+    if (c->connection == DRM_MODE_DISCONNECTED &&
+        c->connector_type == DRM_MODE_CONNECTOR_DSI) {
+      if (property_get_bool("vendor.hwc.no_disconnected_dsi", true)) {
+        drmModeFreeConnector(c);
+        ALOGD("Skip disconnected DSI (%d)", res->connectors[i]);
+        continue;
+      }
+    }
+
     std::vector<DrmEncoder *> possible_encoders;
     DrmEncoder *current_encoder = NULL;
     for (int j = 0; j < c->count_encoders; ++j) {
@@ -665,7 +674,6 @@ std::tuple<int, int> DrmDevice::Init(int num_displays) {
     std::unique_ptr<DrmConnector> conn(
         new DrmConnector(this, c, current_encoder, possible_encoders));
 
-
     drmModeFreeConnector(c);
 
     ret = conn->Init();