commit 989a41a35e6dd588552940a57e9dad148ae6296d
author Puja Gupta <pujag@codeaurora.org> Fri Mar 17 13:27:09 2017 -0700
committer Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org> Mon Jul 16 14:38:33 2018 -0700
tree 929bb132fe2dd77984f4e661c94811691e8ef202
parent 63eeb69d7782d3af4f765a4b15280c78987535cb

arm64: add config option to enable DT overlay

Add config option to enable DT overlay. This option sets DTC_FLAGS to
enable DT compilation with overlay support.

Change-Id: I74b1ed9828ec94093fab40a70c0cd0c155796c94
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>

arch/arm64/Makefile

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 1f62a37..a200c9f 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -125,8 +125,11 @@
 
 KBUILD_DTBS	:= dtbs
 
-all:	$(KBUILD_DTBS) $(subst $\",,$(CONFIG_BUILD_ARM64_APPENDED_KERNEL_IMAGE_NAME))
+ifeq ($(CONFIG_BUILD_ARM64_DT_OVERLAY),y)
+export DTC_FLAGS := -@
+endif
 
+all:	$(KBUILD_DTBS) $(subst $\",,$(CONFIG_BUILD_ARM64_APPENDED_KERNEL_IMAGE_NAME))
 
 Image: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@