diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 05c01ce5d6..e360f8e2c8 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -1044,6 +1044,13 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) free(controller.items_mem); free(controller.epts); +#ifdef CONFIG_DM_USB + usb_remove_ehci_gadget(&controller.ctrl); +#else + usb_lowlevel_stop(0); + controller.ctrl = NULL; +#endif + return 0; } diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c index 4e40f4bc3d..2979212c9f 100644 --- a/drivers/usb/host/usb-uclass.c +++ b/drivers/usb/host/usb-uclass.c @@ -405,6 +405,24 @@ int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp) return 0; } +int usb_remove_ehci_gadget(struct ehci_ctrl **ctlrp) +{ + struct udevice *dev; + int ret; + + /* Find the old device and remove it */ + ret = uclass_find_device_by_seq(UCLASS_USB, 0, true, &dev); + if (ret) + return ret; + ret = device_remove(dev, DM_REMOVE_NORMAL); + if (ret) + return ret; + + *ctlrp = NULL; + + return 0; +} + /* returns 0 if no match, 1 if match */ static int usb_match_device(const struct usb_device_descriptor *desc, const struct usb_device_id *id) diff --git a/include/usb.h b/include/usb.h index 57a7d8d0ea..279bf5555e 100644 --- a/include/usb.h +++ b/include/usb.h @@ -905,6 +905,15 @@ struct ehci_ctrl; */ int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp); +/** + * usb_remove_ehci_gadget() - Remove a gadget USB device + * + * TODO(sjg@chromium.org): Tidy this up when USB gadgets can use driver model + * + * This provides a way to tell a controller to remove a USB device + */ +int usb_remove_ehci_gadget(struct ehci_ctrl **ctlrp); + /** * usb_stor_reset() - Prepare to scan USB storage devices *