[PATCH 02/20] dtoc: Document the return value of scan_structs()

[Simon Glass]

Add documentation to this function as well as generate_structs(), where
the return value is ultimately passed in.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 tools/dtoc/dtb_platdata.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Applied to u-boot-dm, thanks!