DT bindings are moving to using a json-schema based schema format
instead of freeform text. Add a checkpatch.pl check to encourage using
the schema for new bindings. It's not yet a requirement, but is
progressively being required by some maintainers.
Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
scripts/checkpatch.pl | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 93a7edfe0f05..1cbd85f16e32 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2822,6 +2822,14 @@ sub process {
"added, moved or deleted file(s), does MAINTAINERS need updating?\n" . $herecurr);
}
+# Check for adding new DT bindings not in schema format
+ if (!$in_commit_log &&
+ ($line =~ /^new file mode\s*\d+\s*$/) &&
+ ($realfile =~ m@^Documentation/devicetree/bindings/.*\.txt$@)) {
+ WARN("DT_SCHEMA_BINDING_PATCH",
+ "DT bindings should be in DT schema format. See: Documentation/devicetree/writing-schema.rst\n");
+ }
+
# Check for wrappage within a valid hunk of the file
if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
ERROR("CORRUPTED_PATCH",
--
2.20.1
