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@@ -438,9 +438,11 @@ static void usb_show_subtree(struct usb_device *dev)
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usb_show_tree_graph(dev, &preamble[0]);
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}
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-void usb_show_tree(void)
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-{
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#ifdef CONFIG_DM_USB
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+typedef void (*usb_dev_func_t)(struct usb_device *udev);
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+
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+static void usb_for_each_root_dev(usb_dev_func_t func)
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+{
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struct udevice *bus;
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for (uclass_find_first_device(UCLASS_USB, &bus);
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@@ -455,9 +457,16 @@ void usb_show_tree(void)
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device_find_first_child(bus, &dev);
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if (dev && device_active(dev)) {
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udev = dev_get_parent_priv(dev);
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- usb_show_subtree(udev);
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+ func(udev);
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}
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}
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+}
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+#endif
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+
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+void usb_show_tree(void)
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+{
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+#ifdef CONFIG_DM_USB
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+ usb_for_each_root_dev(usb_show_subtree);
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#else
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struct usb_device *udev;
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int i;
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