diff options
Diffstat (limited to 'drivers/usb/chipidea/host.c')
| -rw-r--r-- | drivers/usb/chipidea/host.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index 237cd123fc68..e073462c487c 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -324,6 +324,20 @@ static void host_stop(struct ci_hdrc *ci) ci->hcd = NULL; } +bool ci_hdrc_host_has_device(struct ci_hdrc *ci) +{ + struct usb_device *roothub; + int i; + + if ((ci->role == CI_ROLE_HOST) && ci->hcd) { + roothub = ci->hcd->self.root_hub; + for (i = 0; i < roothub->maxchild; ++i) { + if (usb_hub_find_child(roothub, (i + 1))) + return true; + } + } + return false; +} void ci_hdrc_host_destroy(struct ci_hdrc *ci) { |