usb: renesas_usbhs: modify data transfer interrupt

On current driver, overall data transfer method was implemented in fifo.c,
but its interrupt which is member of packet queue control
was still in mod_gadget.c.
This patch move it into fifo.c.
By this patch, the packet/fifo control is independent from mod_gadget.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index 535e6aa..20e3cf4 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -42,8 +42,7 @@
 	int size;	/* array size of "pipe" */
 	int bufnmb_last;	/* FIXME : driver needs good allocator */
 
-	void (*tx_done)(struct usbhs_pkt *pkt);
-	void (*rx_done)(struct usbhs_pkt *pkt);
+	void (*done)(struct usbhs_pkt *pkt);
 };
 
 /*
@@ -82,8 +81,7 @@
 int usbhs_pipe_is_dir_in(struct usbhs_pipe *pipe);
 int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe);
 void usbhs_pipe_init(struct usbhs_priv *priv,
-		     void (*tx_done)(struct usbhs_pkt *pkt),
-		     void (*rx_done)(struct usbhs_pkt *pkt));
+		     void (*done)(struct usbhs_pkt *pkt));
 int usbhs_pipe_get_maxpacket(struct usbhs_pipe *pipe);
 void usbhs_pipe_clear_sequence(struct usbhs_pipe *pipe);
 int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);