dm: usb: Rename usb_find_child to usb_find_emul_child

Now that we unbind usb devices from usb_stop() usb_find_child() is
only necessary to deal with emulated usb devices.

Rename it to make this clear and add a #ifdef to make it a nop in
other cases.

Note the #ifdef turns usb_find_emul_child() into a nop, rather then not
building it and adding another #ifdef to the caller, this is done this way
because adding a #ifdef to the caller is somewhat hairy.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index 2df67404ca457a9fdd1fd8d4d72d61d7ff51eefd..fd11cc6f6cfb287a2b8e9c3d4b08d805b231bd63 100644 (file)
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -485,15 +485,14 @@ error:
 }
 
 /**
- * usb_find_child() - Find an existing device which matches our needs
- *
- *
+ * usb_find_emul_child() - Find an existing device for emulated devices
  */
-static int usb_find_child(struct udevice *parent,
-                         struct usb_device_descriptor *desc,
-                         struct usb_interface_descriptor *iface,
-                         struct udevice **devp)
+static int usb_find_emul_child(struct udevice *parent,
+                              struct usb_device_descriptor *desc,
+                              struct usb_interface_descriptor *iface,
+                              struct udevice **devp)
 {
+#ifdef CONFIG_SANDBOX
        struct udevice *dev;
 
        *devp = NULL;
@@ -512,7 +511,7 @@ static int usb_find_child(struct udevice *parent,
                        return 0;
                }
        }
-
+#endif
        return -ENOENT;
 }
 
@@ -572,8 +571,8 @@ int usb_scan_device(struct udevice *parent, int port,
        debug("read_descriptor for '%s': ret=%d\n", parent->name, ret);
        if (ret)
                return ret;
-       ret = usb_find_child(parent, &udev->descriptor, iface, &dev);
-       debug("** usb_find_child returns %d\n", ret);
+       ret = usb_find_emul_child(parent, &udev->descriptor, iface, &dev);
+       debug("** usb_find_emul_child returns %d\n", ret);
        if (ret) {
                if (ret != -ENOENT)
                        return ret;