[PATCH v4 3/5] usb: host: xhci-plat: support override of hc driver

[Daehwan Jung]

It helps xhci-plat driver increase usability. Vendors could use functions
in xhci-plat mostly and use some overrides to do what they wants without
modifying xhci-plat driver.

Signed-off-by: Daehwan Jung <dh10.jung@xxxxxxxxxxx>
---
 drivers/usb/host/xhci-plat.c | 6 ++++++
 drivers/usb/host/xhci-plat.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index a5881ff945a6..6efa3169bf69 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -173,6 +173,12 @@ static const struct of_device_id usb_xhci_of_match[] = {
 MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
 #endif
 
+void xhci_plat_override_driver(const struct xhci_driver_overrides *xhci_vendor_overrides)
+{
+	xhci_init_driver(&xhci_plat_hc_driver, xhci_vendor_overrides);
+}
+EXPORT_SYMBOL(xhci_plat_override_driver);
+
 static struct xhci_plat_priv_overwrite xhci_plat_vendor_overwrite;
 
 int xhci_plat_register_vendor_ops(struct xhci_vendor_ops *vendor_ops)
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
index 8c204f3234d8..455e0018d5e6 100644
--- a/drivers/usb/host/xhci-plat.h
+++ b/drivers/usb/host/xhci-plat.h
@@ -28,5 +28,6 @@ struct xhci_plat_priv_overwrite {
 };
 
 int xhci_plat_register_vendor_ops(struct xhci_vendor_ops *vendor_ops);
+void xhci_plat_override_driver(const struct xhci_driver_overrides *xhci_vendor_overrides);
 
 #endif	/* _XHCI_PLAT_H */
-- 
2.31.1