On Wed, 2013-12-04 at 10:03 -0600, Rob Herring wrote:
> From: Rob Herring <rob.herring@xxxxxxxxxxx>
>
> This adds a simple check that any compatible strings in DeviceTree dts
> files are present in Documentation/devicetree/bindings. Vendor prefixes
> are also checked for existing in vendor-prefixes.txt These should be
> temporary checks until we have more sophisticated binding schema checking.
>
> Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
> Cc: Grant Likely <grant.likely@xxxxxxxxxx>
> Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
> Cc: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
> ---
> v3:
> - Use a single message type UNDOCUMENTED_DT_STRING
> - Ensure '+' is at beginning of the line
> - Move vendor-prefixes.txt to variable
>
> v2:
> - Add vendor string checking against vendor-prefixes.txt
> - Add '_', '.' and '+' as valid compatible string characters
> - Use 'grep -E' instead of egrep
>
> scripts/checkpatch.pl | 25 +++++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> index 9c98100..3696366 100755
> --- a/scripts/checkpatch.pl
> +++ b/scripts/checkpatch.pl
> @@ -2034,6 +2034,31 @@ sub process {
> "Use of $flag is deprecated, please use \`$replacement->{$flag} instead.\n" . $herecurr) if ($replacement->{$flag});
> }
>
> +# check for DT compatible documentation
> + if ($realfile =~ /\.dts/ && $rawline =~ /^\+\s*compatible\s*=/) {
> + my @compats = $rawline =~ /\"([a-zA-Z0-9\-\,\.\+_]+)\"/g;
> +
> + foreach my $compat (@compats) {
> + my $compat2 = $compat;
> + my $dt_path = "Documentation/devicetree/bindings/";
> + $compat2 =~ s/\,[a-z]*\-/\,<\.\*>\-/;
> + `grep -Erq "$compat|$compat2" $dt_path`;
> + if ( $? >> 8 ) {
> + WARN("UNDOCUMENTED_DT_STRING",
> + "DT compatible string \"$compat\" appears un-documented -- check $dt_path\n" . $herecurr);
> + }
> +
> + my $vendor = $compat;
> + my $vendor_path = $dt_path . "vendor-prefixes.txt";
> + $vendor =~ s/^([a-zA-Z0-9]+)\,.*/$1/;
> + `grep -Eq "$vendor" $vendor_path`;
> + if ( $? >> 8 ) {
> + WARN("UNDOCUMENTED_DT_STRING",
> + "DT compatible string vendor \"$vendor\" appears un-documented -- check $vendor_path\n" . $herecurr);
> + }
> + }
> + }
> +
> # check we are in a valid source file if not then ignore this hunk
> next if ($realfile !~ /\.(h|c|s|S|pl|sh)$/);
>
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