tree c215280d678ee62869825c8b54da940702bb1ca3
parent 2674e26ebbcae3ec96121fcf59bbf0c5dad78c22
author Simon Glass <sjg@chromium.org> 1427307729 -0600
committer Simon Glass <sjg@chromium.org> 1429377081 -0600

dm: usb: Split hub detection into its own function

Split out the hub detection logic so it can be used by driver model. Also
adjust the code to return errors correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>