commit 22625cea1612da88be6ad5d4d8eb75fc4cb23bf9
author Puja Gupta <pujag@codeaurora.org> Fri Mar 17 13:27:09 2017 -0700
committer Puja Gupta <pujag@codeaurora.org> Wed May 03 16:11:00 2017 -0700
tree 335e945dde6dbadd103ad283d0816fd0241f417a
parent 7da26a52bb0765b8fead5f09c6e8f429b2b4b25f

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: Shashank Mittal <mittals@codeaurora.org>
Signed-off-by: Puja Gupta <pujag@codeaurora.org>

arch/arm64/Makefile

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 13a64c9..1570602 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -103,6 +103,10 @@
 
 KBUILD_DTBS	:= dtbs
 
+ifeq ($(CONFIG_BUILD_ARM64_DT_OVERLAY),y)
+export DTC_FLAGS := -@
+endif
+
 all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)
 
 boot := arch/arm64/boot