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kbuild: take into account DT_SCHEMA_FILES changes while checking dtbs

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It is useful to be able to recheck dtbs files against a limited set of
DT schema files. This can be accomplished by using differnt
DT_SCHEMA_FILES argument values while rerunning make dtbs_check. However
for some reason if_changed_rule doesn't pick up the rule_dtc changes
(and doesn't retrigger the build).

Fix this by changing if_changed_rule to if_changed_dep and squashing DTC
and dt-validate into a single new command. Then if_changed_dep triggers
on DT_SCHEMA_FILES changes and reruns the build/check.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220915114422.79378-1-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Dmitry Baryshkov 2022-09-15 14:44:22 +03:00 committed by Rob Herring
parent 722714205c
commit d7c6ea024c
1 changed files with 6 additions and 8 deletions
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14
scripts/Makefile.lib
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@ -371,17 +371,15 @@ DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
DT_BINDING_DIR := Documentation/devicetree/bindings
DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
quiet_cmd_dtb_check = CHECK $@
cmd_dtb_check = $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
quiet_cmd_dtb = DTC_CHK $@
cmd_dtb = $(cmd_dtc) ; $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
else
quiet_cmd_dtb = $(quiet_cmd_dtc)
cmd_dtb = $(cmd_dtc)
endif
define rule_dtc
$(call cmd_and_fixdep,dtc)
$(call cmd,dtb_check)
endef
$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
$(call if_changed_rule,dtc)
$(call if_changed_dep,dtb)
$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
$(call if_changed_dep,dtc)