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usb: roles: Leave the private driver data pointer to the drivers

Adding usb_role_switch_get/set_drvdata() functions that the switch drivers can use for setting and getting private data pointer that is associated with the switch.

Heikki Krogerus committed 6 years ago

Commit 69af0441 parent d1c6a762 files · +38 −0Browse files

Showing the changes to include/linux (1 of 2 files). Show all

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include/linux/usb/role.h+16−0
@@ -25,6 +25,7 @@ typedef enum usb_role (*usb_role_switch_get_t)(struct device *dev); · 24 unmodified lines
2525 * @set: Callback for setting the role
2626 * @get: Callback for getting the role (optional)
2727 * @allow_userspace_control: If true userspace may change the role through sysfs
28+ * @driver_data: Private data pointer
2829 *
2930 * @usb2_port and @usb3_port will point to the USB host port and @udc to the USB
3031 * device controller behind the USB connector with the role switch. If
@@ -40,6 +41,7 @@ struct usb_role_switch_desc { · 9 unmodified lines
4041 usb_role_switch_set_t set;
4142 usb_role_switch_get_t get;
4243 bool allow_userspace_control;
44+ void *driver_data;
4345 };
4446
4547
@@ -57,6 +59,9 @@ struct usb_role_switch * · 11 unmodified lines
5759 usb_role_switch_register(struct device *parent,
5860 const struct usb_role_switch_desc *desc);
5961 void usb_role_switch_unregister(struct usb_role_switch *sw);
62+
63+void usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data);
64+void *usb_role_switch_get_drvdata(struct usb_role_switch *sw);
6065 #else
6166 static inline int usb_role_switch_set_role(struct usb_role_switch *sw,
6267 enum usb_role role)
@@ -90,6 +95,17 @@ usb_role_switch_register(struct device *parent, · 27 unmodified lines
9095 }
9196
9297 static inline void usb_role_switch_unregister(struct usb_role_switch *sw) { }
98+
99+static inline void
100+usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data)
101+{
102+}
103+
104+static inline void *usb_role_switch_get_drvdata(struct usb_role_switch *sw)
105+{
106+ return NULL;
107+}
108+
93109 #endif
94110
95111 #endif /* __LINUX_USB_ROLE_H */