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usb: otg: add an api to bind the usb controller and phy

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In order to support platforms which has multiple PHY's (of same type) and
which has multiple USB controllers, a new design is adopted wherin the binding
information (between the PHY and the USB controller) should be passed to the
PHY library from platform specific file (board file).
So added a new API to pass the binding information.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Kishon Vijay Abraham I
2013-01-25 08:03:21 +05:30
committed by Felipe Balbi
parent 5a1a174c2c
commit b4a83e4df1
2 changed files with 59 additions and 0 deletions
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22
include/linux/usb/phy.h
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@@ -106,6 +106,21 @@ struct usb_phy {
enum usb_device_speed speed);
};
/**
* 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);
@@ -151,6 +166,8 @@ extern struct usb_phy *devm_usb_get_phy(struct device *dev,
enum usb_phy_type type);
extern void usb_put_phy(struct usb_phy *);
extern void devm_usb_put_phy(struct device *dev, struct usb_phy *x);
extern int usb_bind_phy(const char *dev_name, u8 index,
const char *phy_dev_name);
#else
static inline struct usb_phy *usb_get_phy(enum usb_phy_type type)
{
@@ -171,6 +188,11 @@ static inline void devm_usb_put_phy(struct device *dev, struct usb_phy *x)
{
}
static inline int usb_bind_phy(const char *dev_name, u8 index,
const char *phy_dev_name)
{
return -EOPNOTSUPP;
}
#endif
static inline int