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From:   Rob Herring <robh@kernel.org>
To:     Masahiro Yamada <masahiroy@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Michal Marek <michal.lkml@markovi.net>,
        Nick Desaulniers <ndesaulniers@google.com>
Cc:     Geert Uytterhoeven <geert@linux-m68k.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Maxime Ripard <maxime@cerno.tech>,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kbuild@vger.kernel.org
Subject: [PATCH 1/2] dt-bindings: kbuild: Pass DT_SCHEMA_FILES to dt-validate
Date:   Thu,  3 Mar 2022 16:42:36 -0600
Message-Id: <20220303224237.2497570-2-robh@kernel.org>
In-Reply-To: <20220303224237.2497570-1-robh@kernel.org>
References: <20220303224237.2497570-1-robh@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
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In preparation for supporting validation of DTB files, the full
processed schema will always be needed in order to extract type
information from it. Therefore, the processed schema containing only
what DT_SCHEMA_FILES specifies won't work. Instead, dt-validate has
gained an option, -l or --limit, to specify which schema(s) to use for
validation.

As the command line option is new, we the minimum dtschema version must be
updated.

Cc: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/Makefile | 28 +++-------------------
 scripts/Makefile.lib                       |  3 +--
 2 files changed, 4 insertions(+), 27 deletions(-)

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 61ec18ecc931..246ba0ecab64 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -6,7 +6,7 @@ DT_MK_SCHEMA ?= dt-mk-schema
 DT_SCHEMA_LINT := $(shell which yamllint || \
   echo "warning: yamllint not installed, skipping. To install, run 'pip install yamllint'" >&2)
 
-DT_SCHEMA_MIN_VERSION = 2021.2.1
+DT_SCHEMA_MIN_VERSION = 2022.3
 
 PHONY += check_dtschema_version
 check_dtschema_version:
@@ -25,9 +25,6 @@ quiet_cmd_extract_ex = DTEX    $@
 $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
 	$(call if_changed,extract_ex)
 
-# Use full schemas when checking %.example.dts
-DT_TMP_SCHEMA := $(obj)/processed-schema-examples.json
-
 find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
 		-name 'processed-schema*' ! \
 		-name '*.example.dt.yaml' \)
@@ -70,29 +67,10 @@ override DTC_FLAGS := \
 # Disable undocumented compatible checks until warning free
 override DT_CHECKER_FLAGS ?=
 
-$(obj)/processed-schema-examples.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
+$(obj)/processed-schema.json: $(DT_DOCS) $(src)/.yamllint check_dtschema_version FORCE
 	$(call if_changed_rule,chkdt)
 
-ifeq ($(DT_SCHEMA_FILES),)
-
-# Unless DT_SCHEMA_FILES is specified, use the full schema for dtbs_check too.
-# Just copy processed-schema-examples.json
-
-$(obj)/processed-schema.json: $(obj)/processed-schema-examples.json FORCE
-	$(call if_changed,copy)
-
-else
-
-# If DT_SCHEMA_FILES is specified, use it for processed-schema.json
-
-$(obj)/processed-schema.json: DT_MK_SCHEMA_FLAGS := -u
-$(obj)/processed-schema.json: $(CHK_DT_DOCS) check_dtschema_version FORCE
-	$(call if_changed,mk_schema)
-
-endif
-
-always-$(CHECK_DT_BINDING) += processed-schema-examples.json
-always-$(CHECK_DTBS)       += processed-schema.json
+always-y += processed-schema.json
 always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dts, $(CHK_DT_DOCS))
 always-$(CHECK_DT_BINDING) += $(patsubst $(srctree)/$(src)/%.yaml,%.example.dt.yaml, $(CHK_DT_DOCS))
 
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 79be57fdd32a..9f1e8442564e 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -361,9 +361,8 @@ $(multi-dtb-y): FORCE
 $(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
 
 DT_CHECKER ?= dt-validate
-DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),,-m)
+DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
 DT_BINDING_DIR := Documentation/devicetree/bindings
-# DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile
 DT_TMP_SCHEMA ?= $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
 
 quiet_cmd_dtb_check =	CHECK   $@
-- 
2.32.0