dm: usb: Add a new USB controller operation 'update_hub_device'
For USB host controllers like xHC, its internal representation of
hub needs to be updated after the hub descriptor is fetched. This
adds a new op that does this.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/usb.h b/include/usb.h
index 58b4549..fad0401 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -758,6 +758,14 @@
* reset_root_port() - Reset usb root port
*/
int (*reset_root_port)(struct udevice *bus, struct usb_device *udev);
+
+ /**
+ * update_hub_device() - Update HCD's internal representation of hub
+ *
+ * After a hub descriptor is fetched, notify HCD so that its internal
+ * representation of this hub can be updated (xHCI)
+ */
+ int (*update_hub_device)(struct udevice *bus, struct usb_device *udev);
};
#define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops)
@@ -931,6 +939,17 @@
int usb_alloc_device(struct usb_device *dev);
/**
+ * update_hub_device() - Update HCD's internal representation of hub
+ *
+ * After a hub descriptor is fetched, notify HCD so that its internal
+ * representation of this hub can be updated.
+ *
+ * @dev: Hub device
+ * @return 0 if OK, -ve on error
+ */
+int usb_update_hub_device(struct usb_device *dev);
+
+/**
* usb_emul_setup_device() - Set up a new USB device emulation
*
* This is normally called when a new emulation device is bound. It tells
@@ -943,7 +962,7 @@
* @desc_list: List of points or USB descriptors, terminated by NULL.
* The first entry must be struct usb_device_descriptor,
* and others follow on after that.
- * @return 0 if OK, -ve on error
+ * @return 0 if OK, -ENOSYS if not implemented, other -ve on error
*/
int usb_emul_setup_device(struct udevice *dev, int maxpacketsize,
struct usb_string *strings, void **desc_list);