usb: otg: Add ulpi viewport access ops
Add generic access ops for controllers with a ulpi viewport register
(e.g. Chipidea/ARC based controllers).
Signed-off-by: Benoit Goby <benoit@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/include/linux/usb/ulpi.h b/include/linux/usb/ulpi.h
index 82b1507..9595796 100644
--- a/include/linux/usb/ulpi.h
+++ b/include/linux/usb/ulpi.h
@@ -184,4 +184,9 @@
struct otg_transceiver *otg_ulpi_create(struct otg_io_access_ops *ops,
unsigned int flags);
+#ifdef CONFIG_USB_ULPI_VIEWPORT
+/* access ops for controllers with a viewport register */
+extern struct otg_io_access_ops ulpi_viewport_access_ops;
+#endif
+
#endif /* __LINUX_USB_ULPI_H */