Documentation/devicetree/bindings/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 DT_DOC_CHECKER ?= dt-doc-validate
   3 DT_EXTRACT_EX ?= dt-extract-example
   4 DT_MK_SCHEMA ?= dt-mk-schema
   5 DT_MK_SCHEMA_USERONLY_FLAG := $(if $(DT_SCHEMA_FILES), -u)
   6
   7 DT_SCHEMA_MIN_VERSION = 2020.5
   8
   9 PHONY += check_dtschema_version
  10 check_dtschema_version:
  11         @{ echo $(DT_SCHEMA_MIN_VERSION); \
  12         $(DT_DOC_CHECKER) --version 2>/dev/null || echo 0; } | sort -VC || \
  13         { echo "ERROR: dtschema minimum version is v$(DT_SCHEMA_MIN_VERSION)" >&2; false; }
  14
  15 quiet_cmd_chk_binding = CHKDT   $(patsubst $(srctree)/%,%,$<)
  16       cmd_chk_binding = $(DT_DOC_CHECKER) -u $(srctree)/$(src) $< ; \
  17                         $(DT_EXTRACT_EX) $< > $@
  18
  19 $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
  20         $(call if_changed,chk_binding)
  21
  22 # Use full schemas when checking %.example.dts
  23 DT_TMP_SCHEMA := $(obj)/processed-schema-examples.yaml
  24
  25 find_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
  26                 -name 'processed-schema*' ! \
  27                 -name '*.example.dt.yaml' \)
  28
  29 quiet_cmd_mk_schema = SCHEMA  $@
  30       cmd_mk_schema = rm -f $@ ; \
  31                       $(if $(DT_MK_SCHEMA_FLAGS), \
  32                            echo $(real-prereqs), \
  33                            $(find_cmd)) | \
  34                       xargs $(DT_MK_SCHEMA) $(DT_MK_SCHEMA_FLAGS) >> $@
  35
  36 DT_DOCS = $(shell $(find_cmd) | sed -e 's|^$(srctree)/||')
  37
  38 DT_SCHEMA_FILES ?= $(DT_DOCS)
  39
  40 extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dts, $(DT_SCHEMA_FILES))
  41 extra-$(CHECK_DT_BINDING) += $(patsubst $(src)/%.yaml,%.example.dt.yaml, $(DT_SCHEMA_FILES))
  42 extra-$(CHECK_DT_BINDING) += processed-schema-examples.yaml
  43
  44 override DTC_FLAGS := \
  45         -Wno-avoid_unnecessary_addr_size \
  46         -Wno-graph_child_address
  47
  48 $(obj)/processed-schema-examples.yaml: $(DT_DOCS) check_dtschema_version FORCE
  49         $(call if_changed,mk_schema)
  50
  51 $(obj)/processed-schema.yaml: DT_MK_SCHEMA_FLAGS := $(DT_MK_SCHEMA_USERONLY_FLAG)
  52 $(obj)/processed-schema.yaml: $(DT_SCHEMA_FILES) check_dtschema_version FORCE
  53         $(call if_changed,mk_schema)
  54
  55 extra-y += processed-schema.yaml