dt-bindings: Consider DT_SCHEMA_FILES when finding all json-schema

Setting DT_SCHEMA_FILES allows the user to restrict the
"dt_binding_check" make target to a specified set of DT binding files.
However, yamllint is still run on all available files, which not only
takes time, but also outputs warnings for other binding files the
developer is not interested in.

Fix this by renaming "find_cmd" to "find_all_cmd", introducing a new
"find_cmd" to only return the files specified by DT_SCHEMA_FILES (if
present), and using the latter for yamllint and dt-doc-validate.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/174ab1d791b7bc65f3b0f11b72be13af1748c731.1634551582.git.geert+renesas@glider.be
[robh: Also use only DT_SCHEMA_FILES for dt-doc-validate]
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/Makefile b/Documentation/devicetree/bindings/Makefile
index 6305cfa9495ed676ca552a2bdf526a1bca034713..8d6d912c6a6aa89e4156d8cbc0b82d97fcbb20bf 100644 (file)
--- a/Documentation/devicetree/bindings/Makefile
+++ b/Documentation/devicetree/bindings/Makefile
@@ -22,13 +22,20 @@ $(obj)/%.example.dts: $(src)/%.yaml check_dtschema_version FORCE
 # Use full schemas when checking %.example.dts
 DT_TMP_SCHEMA := $(obj)/processed-schema-examples.json
 
-find_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
+find_all_cmd = find $(srctree)/$(src) \( -name '*.yaml' ! \
                -name 'processed-schema*' ! \
                -name '*.example.dt.yaml' \)
 
+ifeq ($(DT_SCHEMA_FILES),)
+find_cmd = $(find_all_cmd)
+else
+find_cmd = echo $(addprefix $(srctree)/, $(DT_SCHEMA_FILES))
+endif
+
 quiet_cmd_yamllint = LINT    $(src)
       cmd_yamllint = ($(find_cmd) | \
-                     xargs -n200 -P$$(nproc) $(DT_SCHEMA_LINT) -f parsable -c $(srctree)/$(src)/.yamllint >&2) || true
+                     xargs -n200 -P$$(nproc) \
+                    $(DT_SCHEMA_LINT) -f parsable -c $(srctree)/$(src)/.yamllint >&2) || true
 
 quiet_cmd_chk_bindings = CHKDT   $@
       cmd_chk_bindings = ($(find_cmd) | \
@@ -38,7 +45,7 @@ quiet_cmd_mk_schema = SCHEMA  $@
       cmd_mk_schema = f=$$(mktemp) ; \
                       $(if $(DT_MK_SCHEMA_FLAGS), \
                            printf '%s\n' $(real-prereqs), \
-                           $(find_cmd)) > $$f ; \
+                           $(find_all_cmd)) > $$f ; \
                       $(DT_MK_SCHEMA) -j $(DT_MK_SCHEMA_FLAGS) @$$f > $@ ; \
                      rm -f $$f
 
@@ -48,7 +55,7 @@ define rule_chkdt
        $(call cmd,mk_schema)
 endef
 
-DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_cmd)))
+DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_all_cmd)))
 
 override DTC_FLAGS := \
        -Wno-avoid_unnecessary_addr_size \