dm: Export device_remove_children / device_unbind_children

These functions are useful to remove all children from an usb bus before
rescanning the bus. Give them a better name and export them.

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

drivers/core/device-remove.c

@@ -18,16 +18,7 @@
 #include <dm/uclass-internal.h>
 #include <dm/util.h>
 
-/**
- * device_chld_unbind() - Unbind all device's children from the device
- *
- * On error, the function continues to unbind all children, and reports the
- * first error.
- *
- * @dev:	The device that is to be stripped of its children
- * @return 0 on success, -ve on error
- */
-static int device_chld_unbind(struct udevice *dev)
+int device_unbind_children(struct udevice *dev)
 {
 	struct udevice *pos, *n;
 	int ret, saved_ret = 0;
@@ -43,12 +34,7 @@ static int device_chld_unbind(struct udevice *dev)
 	return saved_ret;
 }
 
-/**
- * device_chld_remove() - Stop all device's children
- * @dev:	The device whose children are to be removed
- * @return 0 on success, -ve on error
- */
-static int device_chld_remove(struct udevice *dev)
+int device_remove_children(struct udevice *dev)
 {
 	struct udevice *pos, *n;
 	int ret;
@@ -84,7 +70,7 @@ int device_unbind(struct udevice *dev)
 			return ret;
 	}
 
-	ret = device_chld_unbind(dev);
+	ret = device_unbind_children(dev);
 	if (ret)
 		return ret;
 
@@ -159,7 +145,7 @@ int device_remove(struct udevice *dev)
 	if (ret)
 		return ret;
 
-	ret = device_chld_remove(dev);
+	ret = device_remove_children(dev);
 	if (ret)
 		goto err;
 

include/dm/device-internal.h

@@ -107,6 +107,32 @@ int device_unbind(struct udevice *dev);
 static inline int device_unbind(struct udevice *dev) { return 0; }
 #endif
 
+/**
+ * device_remove_children() - Stop all device's children
+ * @dev:	The device whose children are to be removed
+ * @return 0 on success, -ve on error
+ */
+#ifdef CONFIG_DM_DEVICE_REMOVE
+int device_remove_children(struct udevice *dev);
+#else
+static inline int device_remove_children(struct udevice *dev) { return 0; }
+#endif
+
+/**
+ * device_unbind_children() - Unbind all device's children from the device
+ *
+ * On error, the function continues to unbind all children, and reports the
+ * first error.
+ *
+ * @dev:	The device that is to be stripped of its children
+ * @return 0 on success, -ve on error
+ */
+#ifdef CONFIG_DM_DEVICE_REMOVE
+int device_unbind_children(struct udevice *dev);
+#else
+static inline int device_unbind_children(struct udevice *dev) { return 0; }
+#endif
+
 #ifdef CONFIG_DM_DEVICE_REMOVE
 void device_free(struct udevice *dev);
 #else