1 /*
2  * MDIO bus multiplexer framwork.
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file "COPYING" in the main directory of this archive
6  * for more details.
7  *
8  * Copyright (C) 2011, 2012 Cavium, Inc.
9  */
10 #ifndef __LINUX_MDIO_MUX_H
11 #define __LINUX_MDIO_MUX_H
12 #include <linux/device.h>
13 #include <linux/phy.h>
14 
15 /* mdio_mux_init() - Initialize a MDIO mux
16  * @dev		The device owning the MDIO mux
17  * @mux_node	The device node of the MDIO mux
18  * @switch_fn	The function called for switching target MDIO child
19  * mux_handle	A pointer to a (void *) used internaly by mdio-mux
20  * @data	Private data used by switch_fn()
21  * @mux_bus	An optional parent bus (Other case are to use parent_bus property)
22  */
23 int mdio_mux_init(struct device *dev,
24 		  struct device_node *mux_node,
25 		  int (*switch_fn) (int cur, int desired, void *data),
26 		  void **mux_handle,
27 		  void *data,
28 		  struct mii_bus *mux_bus);
29 
30 void mdio_mux_uninit(void *mux_handle);
31 
32 #endif /* __LINUX_MDIO_MUX_H */
33