linux-kernel - [PATCH] kbuild: allow checking single device tree file

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Message-Id: <20210513151800.1059435-1-dmitry.baryshkov@linaro.org>
Date:   Thu, 13 May 2021 18:18:00 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH] kbuild: allow checking single device tree file

Add support for testing single device tree file by running
'make tree.dt.yaml', e.g. 'make ARCH=arm64 qcom/qrb5165-rb5.dt.yaml'.
This looks useful for checking idividual changes to dts files.

Cc: Rob Herring <robh@...nel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Makefile b/Makefile
index 53d09c414635..b36a3d48eb68 100644
--- a/Makefile
+++ b/Makefile
@@ -1383,6 +1383,10 @@ ifneq ($(dtstree),)
 %.dtbo: include/config/kernel.release scripts_dtc
 	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
 
+%.dt.yaml: include/config/kernel.release scripts_dtc
+	$(Q)$(MAKE) $(build)=Documentation/devicetree/bindings Documentation/devicetree/bindings/processed-schema.json
+	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ CHECK_DTBS=y
+
 PHONY += dtbs dtbs_install dtbs_check
 dtbs: include/config/kernel.release scripts_dtc
 	$(Q)$(MAKE) $(build)=$(dtstree)
-- 
2.30.2