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| author | Rob Herring (Arm) <robh@kernel.org> | 2024-07-17 08:39:55 -0600 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2024-09-05 10:17:03 -0500 |
| commit | 4c727150a629a59933cbd12ab4230a30789e4c90 (patch) | |
| tree | 257bd863ea487baf7b73f64e724c311dc256426b /scripts | |
| parent | 000f6d588a8f3d128f89351058dc04d38e54a327 (diff) | |
| download | lwn-4c727150a629a59933cbd12ab4230a30789e4c90.tar.gz lwn-4c727150a629a59933cbd12ab4230a30789e4c90.zip | |
dt: dt-extract-compatibles: Extract compatibles from function parameters
Various DT and fwnode functions take a compatible string as a parameter.
These are often used in cases which don't have a driver, so they've been
missed.
The additional checks add about 400 more undocumented compatible
strings.
Link: https://lore.kernel.org/all/20240903200753.2097911-1-robh@kernel.org/
Acked-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/dtc/dt-extract-compatibles | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/scripts/dtc/dt-extract-compatibles b/scripts/dtc/dt-extract-compatibles index 5ffb2364409b..6570efabaa64 100755 --- a/scripts/dtc/dt-extract-compatibles +++ b/scripts/dtc/dt-extract-compatibles @@ -46,6 +46,15 @@ def parse_of_match_table(data): return match_table_list +def parse_of_functions(data, func_name): + """ Find all compatibles in the last argument of a given function """ + compat_list = [] + for m in re.finditer(rf'{func_name}\(([a-zA-Z0-9_>\(\)"\-]+,\s)*"([a-zA-Z0-9_,-]+)"\)', data): + compat_list.append(m[2]) + + return compat_list + + def parse_compatibles(file, compat_ignore_list): with open(file, 'r', encoding='utf-8') as f: data = f.read().replace('\n', '') @@ -60,6 +69,10 @@ def parse_compatibles(file, compat_ignore_list): else: compat_list = parse_of_declare_macros(data) compat_list += parse_of_device_id(data) + compat_list += parse_of_functions(data, "_is_compatible") + compat_list += parse_of_functions(data, "of_find_compatible_node") + compat_list += parse_of_functions(data, "for_each_compatible_node") + compat_list += parse_of_functions(data, "of_get_compatible_child") return compat_list |