usb: Use the first available device for ehci_gadget

For whatever reason, usb_setup_ehci_gadget removes and probes USB device
0. However, not all systems have a device 0. Use the first device
instead.

The device probed should probably have something to do with the
controller (as specified by e.g. ums <controller> or fastboot
<controller>). In fact, I find it odd that we probe the USB device in
the first place, because this is just to set up the gadget itself.
Presumably, the controller should be probed by usb_gadget_initialize
somehow.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index fd39c33..27e2fc6 100644 (file)
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -396,7 +396,7 @@ int usb_setup_ehci_gadget(struct ehci_ctrl **ctlrp)
        int ret;
 
        /* Find the old device and remove it */
-       ret = uclass_find_device_by_seq(UCLASS_USB, 0, &dev);
+       ret = uclass_find_first_device(UCLASS_USB, &dev);
        if (ret)
                return ret;
        ret = device_remove(dev, DM_REMOVE_NORMAL);
@@ -419,7 +419,7 @@ int usb_remove_ehci_gadget(struct ehci_ctrl **ctlrp)
        int ret;
 
        /* Find the old device and remove it */
-       ret = uclass_find_device_by_seq(UCLASS_USB, 0, &dev);
+       ret = uclass_find_first_device(UCLASS_USB, &dev);
        if (ret)
                return ret;
        ret = device_remove(dev, DM_REMOVE_NORMAL);