USB: phy: drop legacy board-file support

The legacy interface for associating controllers with phys from board
files and platform code has been unused since commit 9080b8dc76 ("ARM:
OMAP2+: Remove legacy usb-host.c platform init code"). Since then, all
calls to usb_get_phy_dev() and its devres version have been returning
-ENODEV.

Now that the final calls to these functions have been removed, we can
drop this legacy lookup interface altogether.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/phy/phy.c

@@ -27,7 +27,6 @@
 #define DEFAULT_ACA_CUR_MAX	5000
 
 static LIST_HEAD(phy_list);
-static LIST_HEAD(phy_bind_list);
 static DEFINE_SPINLOCK(phy_lock);
 
 struct phy_devm {
@@ -50,24 +49,6 @@ static struct usb_phy *__usb_find_phy(struct list_head *list,
 	return ERR_PTR(-ENODEV);
 }
 
-static struct usb_phy *__usb_find_phy_dev(struct device *dev,
-	struct list_head *list, u8 index)
-{
-	struct usb_phy_bind *phy_bind = NULL;
-
-	list_for_each_entry(phy_bind, list, list) {
-		if (!(strcmp(phy_bind->dev_name, dev_name(dev))) &&
-				phy_bind->index == index) {
-			if (phy_bind->phy)
-				return phy_bind->phy;
-			else
-				return ERR_PTR(-EPROBE_DEFER);
-		}
-	}
-
-	return ERR_PTR(-ENODEV);
-}
-
 static struct usb_phy *__of_usb_find_phy(struct device_node *node)
 {
 	struct usb_phy  *phy;
@@ -584,72 +565,6 @@ struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(devm_usb_get_phy_by_phandle);
 
-/**
- * usb_get_phy_dev - find the USB PHY
- * @dev - device that requests this phy
- * @index - the index of the phy
- *
- * Returns the phy driver, after getting a refcount to it; or
- * -ENODEV if there is no such phy.  The caller is responsible for
- * calling usb_put_phy() to release that count.
- *
- * For use by USB host and peripheral drivers.
- */
-struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index)
-{
-	struct usb_phy	*phy = NULL;
-	unsigned long	flags;
-
-	spin_lock_irqsave(&phy_lock, flags);
-
-	phy = __usb_find_phy_dev(dev, &phy_bind_list, index);
-	if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
-		dev_dbg(dev, "unable to find transceiver\n");
-		if (!IS_ERR(phy))
-			phy = ERR_PTR(-ENODEV);
-
-		goto err0;
-	}
-
-	get_device(phy->dev);
-
-err0:
-	spin_unlock_irqrestore(&phy_lock, flags);
-
-	return phy;
-}
-EXPORT_SYMBOL_GPL(usb_get_phy_dev);
-
-/**
- * devm_usb_get_phy_dev - find the USB PHY using device ptr and index
- * @dev - device that requests this phy
- * @index - the index of the phy
- *
- * Gets the phy using usb_get_phy_dev(), and associates a device with it using
- * devres. On driver detach, release function is invoked on the devres data,
- * then, devres data is freed.
- *
- * For use by USB host and peripheral drivers.
- */
-struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index)
-{
-	struct usb_phy **ptr, *phy;
-
-	ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return NULL;
-
-	phy = usb_get_phy_dev(dev, index);
-	if (!IS_ERR(phy)) {
-		*ptr = phy;
-		devres_add(dev, ptr);
-	} else
-		devres_free(ptr);
-
-	return phy;
-}
-EXPORT_SYMBOL_GPL(devm_usb_get_phy_dev);
-
 /**
  * devm_usb_put_phy - release the USB PHY
  * @dev - device that wants to release this phy
@@ -745,7 +660,6 @@ EXPORT_SYMBOL_GPL(usb_add_phy);
  */
 int usb_add_phy_dev(struct usb_phy *x)
 {
-	struct usb_phy_bind *phy_bind;
 	unsigned long flags;
 	int ret;
 
@@ -762,13 +676,9 @@ int usb_add_phy_dev(struct usb_phy *x)
 	ATOMIC_INIT_NOTIFIER_HEAD(&x->notifier);
 
 	spin_lock_irqsave(&phy_lock, flags);
-	list_for_each_entry(phy_bind, &phy_bind_list, list)
-		if (!(strcmp(phy_bind->phy_dev_name, dev_name(x->dev))))
-			phy_bind->phy = x;
-
 	list_add_tail(&x->head, &phy_list);
-
 	spin_unlock_irqrestore(&phy_lock, flags);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_add_phy_dev);
@@ -782,15 +692,10 @@ EXPORT_SYMBOL_GPL(usb_add_phy_dev);
 void usb_remove_phy(struct usb_phy *x)
 {
 	unsigned long	flags;
-	struct usb_phy_bind *phy_bind;
 
 	spin_lock_irqsave(&phy_lock, flags);
-	if (x) {
+	if (x)
-		list_for_each_entry(phy_bind, &phy_bind_list, list)
-			if (phy_bind->phy == x)
-				phy_bind->phy = NULL;
 		list_del(&x->head);
-	}
 	spin_unlock_irqrestore(&phy_lock, flags);
 }
 EXPORT_SYMBOL_GPL(usb_remove_phy);

include/linux/usb/phy.h

@@ -157,22 +157,6 @@ struct usb_phy {
 	enum usb_charger_type (*charger_detect)(struct usb_phy *x);
 };
 
-/**
- * struct usb_phy_bind - represent the binding for the phy
- * @dev_name: the device name of the device that will bind to the phy
- * @phy_dev_name: the device name of the phy
- * @index: used if a single controller uses multiple phys
- * @phy: reference to the phy
- * @list: to maintain a linked list of the binding information
- */
-struct usb_phy_bind {
-	const char	*dev_name;
-	const char	*phy_dev_name;
-	u8		index;
-	struct usb_phy	*phy;
-	struct list_head list;
-};
-
 /* for board-specific init logic */
 extern int usb_add_phy(struct usb_phy *, enum usb_phy_type type);
 extern int usb_add_phy_dev(struct usb_phy *);
@@ -234,8 +218,6 @@ usb_phy_vbus_off(struct usb_phy *x)
 extern struct usb_phy *usb_get_phy(enum usb_phy_type type);
 extern struct usb_phy *devm_usb_get_phy(struct device *dev,
 	enum usb_phy_type type);
-extern struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index);
-extern struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index);
 extern struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
 	const char *phandle, u8 index);
 extern struct usb_phy *devm_usb_get_phy_by_node(struct device *dev,
@@ -261,16 +243,6 @@ static inline struct usb_phy *devm_usb_get_phy(struct device *dev,
 	return ERR_PTR(-ENXIO);
 }
 
-static inline struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index)
-{
-	return ERR_PTR(-ENXIO);
-}
-
-static inline struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index)
-{
-	return ERR_PTR(-ENXIO);
-}
-
 static inline struct usb_phy *devm_usb_get_phy_by_phandle(struct device *dev,
 	const char *phandle, u8 index)
 {