[PATCH 3/4] dt-bindings: copy process-schema-examples.yaml to process-schema.yaml

Masahiro Yamada
2020-06-25T17:05:22Z

There are two processed schema files:

- processed-schema-examples.yaml

Used for 'make dt_binding_check'. This is always a full schema.

- processed-schema.yaml

Used for 'make dtbs_check'. This may be a full schema, or a smaller
subset if DT_SCHEMA_FILES is given by a user.

If DT_SCHEMA_FILES is not specified, they are the same. You can copy
the former to the latter instead of running dt-mk-schema twice. This
saves the cpu time a lot when you do 'make dt_binding_check dtbs_check'
because building the full schema takes a couple of seconds.

If DT_SCHEMA_FILES is specified, processed-schema.yaml is generated
based on the specified yaml files.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

Documentation/devicetree/bindings/Makefile | 28 +++++++++++++++-------
scripts/Makefile.lib | 3 +++
2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index aa243328ed43..6aac57588e66 100644
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -2,7 +2,6 @@
DT_DOC_CHECKER ?= dt-doc-validate
DT_EXTRACT_EX ?= dt-extract-example
DT_MK_SCHEMA ?= dt-mk-schema
-DT_MK_SCHEMA_USERONLY_FLAG := $(if $(DT_SCHEMA_FILES), -u)

DT_SCHEMA_MIN_VERSION = 2020.5

@@ -35,12 +34,6 @@ quiet_cmd_mk_schema = SCHEMA $@

DT_DOCS = $(shell $(find_cmd) | sed -e 's|^$(srctree)/||')

-DT_SCHEMA_FILES ?= $(DT_DOCS)
-
-extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dts, $(DT_SCHEMA_FILES))
-extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dt.yaml, $(DT_SCHEMA_FILES))
-extra-$(CHECK_DT_BINDING) += processed-schema-examples.yaml
-
override DTC_FLAGS := \
-Wno-avoid_unnecessary_addr_size \
-Wno-graph_child_address
@@ -48,10 +41,29 @@ override DTC_FLAGS := \
$(obj)/processed-schema-examples.yaml: $(DT_DOCS) check_dtschema_version FORCE
$(call if_changed,mk_schema)

-$(obj)/processed-schema.yaml: DT_MK_SCHEMA_FLAGS := $(DT_MK_SCHEMA_USERONLY_FLAG)
+ifeq ($(DT_SCHEMA_FILES),)
+
+# Unless DT_SCHEMA_FILES is specified, use the full schema for dtbs_check too.
+# Just copy processed-schema-examples.yaml
+
+$(obj)/processed-schema.yaml: $(obj)/processed-schema-examples.yaml FORCE
+ $(call if_changed,copy)
+
+DT_SCHEMA_FILES = $(DT_DOCS)
+
+else
+
+# If DT_SCHEMA_FILES is specified, use it for processed-schema.yaml
+
+$(obj)/processed-schema.yaml: DT_MK_SCHEMA_FLAGS := -u
$(obj)/processed-schema.yaml: $(DT_SCHEMA_FILES) check_dtschema_version FORCE
$(call if_changed,mk_schema)

+endif
+
+extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dts, $(DT_SCHEMA_FILES))
+extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dt.yaml, $(DT_SCHEMA_FILES))
+extra-$(CHECK_DT_BINDING) += processed-schema-examples.yaml
extra-$(CHECK_DTBS) += processed-schema.yaml

# Hack: avoid 'Argument list too long' error for 'make clean'. Remove most of
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 99ac59c59826..fa5022133a25 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -212,6 +212,9 @@ $(foreach m, $(notdir $1), \
$(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
endef

+quiet_cmd_copy = COPY $@
+ cmd_copy = cp $< $@
+
# Shipped files
# ===========================================================================

--
2.25.1