rk: kbuild: Introduce CONFIG_DTC_SYMBOLS

dtc generation of symbols by CONFIG_DTC_SYMBOLS. For support device tree overlay. Change-Id: Ia10496031bc02fd3a4ff98ab0acfc6fc9a54951b Signed-off-by: Tao Huang <huangtao@rock-chips.com>
2018-08-17 19:17:42 +08:00
parent 77c36d3572
commit 2943395673
2 changed files with 12 additions and 0 deletions
@@ -12,6 +12,13 @@ menuconfig OF

 if OF

+config DTC_SYMBOLS
+	bool "Enable dtc generation of symbols for overlays support"
+	depends on DTC
+	help
+	  Set DTC_FLAGS += -@
+	  Android OS must enable this option.
+
 config OF_UNITTEST
 	bool "Device Tree runtime unit tests"
 	depends on !SPARC
@@ -317,6 +317,11 @@ endif
 DTC ?= $(objtree)/scripts/dtc/dtc
 DTC_FLAGS += $(call dtc-option,-Wno-interrupt_provider)

+# Generation of symbols for Android
+ifeq ($(CONFIG_DTC_SYMBOLS),y)
+DTC_FLAGS += -@
+endif
+
 # Disable noisy checks by default
 ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
 DTC_FLAGS += $(call dtc-option,-Wno-unit_address_vs_reg) \