[U-Boot] [PATCH 06/16] usb: xhci: Change to use usb_hub_is_root_hub() API

[Bin Meng]

Now that we have a generic public API, remove the xHCI driver's own
version is_root_hub() and use the new API.

While we are here, remove the unused/commented out get_usb_device().

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
---

 drivers/usb/host/xhci.c | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 8631e27..a5b888a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1116,26 +1116,6 @@ int usb_lowlevel_stop(int index)
 #endif /* CONFIG_DM_USB */
 
 #ifdef CONFIG_DM_USB
-/*
-static struct usb_device *get_usb_device(struct udevice *dev)
-{
-	struct usb_device *udev;
-
-	if (device_get_uclass_id(dev) == UCLASS_USB)
-		udev = dev_get_uclass_priv(dev);
-	else
-		udev = dev_get_parent_priv(dev);
-
-	return udev;
-}
-*/
-static bool is_root_hub(struct udevice *dev)
-{
-	if (device_get_uclass_id(dev->parent) != UCLASS_USB_HUB)
-		return true;
-
-	return false;
-}
 
 static int xhci_submit_control_msg(struct udevice *dev, struct usb_device *udev,
 				   unsigned long pipe, void *buffer, int length,
@@ -1150,10 +1130,10 @@ static int xhci_submit_control_msg(struct udevice *dev, struct usb_device *udev,
 	hub = udev->dev;
 	if (device_get_uclass_id(hub) == UCLASS_USB_HUB) {
 		/* Figure out our port number on the root hub */
-		if (is_root_hub(hub)) {
+		if (usb_hub_is_root_hub(hub)) {
 			root_portnr = udev->portnr;
 		} else {
-			while (!is_root_hub(hub->parent))
+			while (!usb_hub_is_root_hub(hub->parent))
 				hub = hub->parent;
 			uhop = dev_get_parent_priv(hub);
 			root_portnr = uhop->portnr;
-- 
2.9.2