diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index 7b2cffc..90dc149 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -58,9 +58,23 @@ endif
 
 KBUILD_CFLAGS += $(warning)
 
+dtc-warning-2 += $(call dtc-option,-Wnode_name_chars_strict)
+dtc-warning-2 += $(call dtc-option,-Wproperty_name_chars_strict)
+
+dtc-warning := $(dtc-warning-$(findstring 1, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+dtc-warning += $(dtc-warning-$(findstring 2, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+dtc-warning += $(dtc-warning-$(findstring 3, $(KBUILD_ENABLE_EXTRA_GCC_CHECKS)))
+
+DTC_FLAGS += $(dtc-warning)
+
 else
 
 # Disable noisy checks by default
 DTC_FLAGS += $(call dtc-option,-Wno-unit_address_vs_reg)
+DTC_FLAGS += $(call dtc-option,-Wno-simple_bus_reg)
+DTC_FLAGS += $(call dtc-option,-Wno-unit_address_format)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_bridge)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_device_bus_num)
+DTC_FLAGS += $(call dtc-option,-Wno-pci_device_reg)
 
 endif