linux-kernel - [PATCH 1/2] of: add support of dtc compiler flags for device tree overlays

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Message-Id: <1493012595-696-2-git-send-email-frowand.list@gmail.com>
Date:   Sun, 23 Apr 2017 22:43:14 -0700
From:   frowand.list@...il.com
To:     Rob Herring <robh+dt@...nel.org>, stephen.boyd@...aro.org,
        Michal Marek <mmarek@...e.com>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kbuild@...r.kernel.org
Subject: [PATCH 1/2] of: add support of dtc compiler flags for device tree overlays

From: Frank Rowand <frank.rowand@...y.com>

The dtc compiler version that adds initial support was available
in 4.11-rc1.  Add the ability to set the dtc compiler flags needed
by overlays.

Signed-off-by: Frank Rowand <frank.rowand@...y.com>
---
 scripts/Makefile.lib | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 0a07f9014944..0bbec480d323 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -283,6 +283,8 @@ ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),)
 DTC_FLAGS += -Wno-unit_address_vs_reg
 endif
 
+DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
+
 # Generate an assembly file to wrap the output of the device tree compiler
 quiet_cmd_dt_S_dtb= DTB     $@
 cmd_dt_S_dtb=						\
-- 
Frank Rowand <frank.rowand@...y.com>