usb:hsotg:samsung: Rename s3c_hsotg_disconnect function

The s3c_hsotg_disconnect_irq function has been renamed to
reflect, that it can be used not only during the host
disconnect irq.

The s3c_hsotg_disconnect shall be used as a fall back for
scenario when USB cable is unplugged and plugged to the
device.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/s3c-hsotg.c

@@ -2086,14 +2086,14 @@ static void kill_all_requests(struct s3c_hsotg *hsotg,
 		(_hs)->driver->_entry(&(_hs)->gadget);
 
 /**
- * s3c_hsotg_disconnect_irq - disconnect irq service
+ * s3c_hsotg_disconnect - disconnect service
  * @hsotg: The device state.
  *
- * A disconnect IRQ has been received, meaning that the host has
- * lost contact with the bus. Remove all current transactions
- * and signal the gadget driver that this has happened.
+ * The device has been disconnected. Remove all current
+ * transactions and signal the gadget driver that this
+ * has happened.
 */
-static void s3c_hsotg_disconnect_irq(struct s3c_hsotg *hsotg)
+static void s3c_hsotg_disconnect(struct s3c_hsotg *hsotg)
 {
 	unsigned ep;