[mirror_ubuntu-bionic-kernel.git] / include / linux / mdio.h

/*
 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
 * Copyright 2006-2009 Solarflare Communications Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation, incorporated herein by reference.
 */
#ifndef __LINUX_MDIO_H__
#define __LINUX_MDIO_H__

#include <uapi/linux/mdio.h>
#include <linux/mod_devicetable.h>

struct mii_bus;

/* Multiple levels of nesting are possible. However typically this is
 * limited to nested DSA like layer, a MUX layer, and the normal
 * user. Instead of trying to handle the general case, just define
 * these cases.
 */
enum mdio_mutex_lock_class {
	MDIO_MUTEX_NORMAL,
	MDIO_MUTEX_MUX,
	MDIO_MUTEX_NESTED,
};

struct mdio_device {
	struct device dev;

	const struct dev_pm_ops *pm_ops;
	struct mii_bus *bus;
	char modalias[MDIO_NAME_SIZE];

	int (*bus_match)(struct device *dev, struct device_driver *drv);
	void (*device_free)(struct mdio_device *mdiodev);
	void (*device_remove)(struct mdio_device *mdiodev);

	/* Bus address of the MDIO device (0-31) */
	int addr;
	int flags;
};
#define to_mdio_device(d) container_of(d, struct mdio_device, dev)

/* struct mdio_driver_common: Common to all MDIO drivers */
struct mdio_driver_common {
	struct device_driver driver;
	int flags;
};
#define MDIO_DEVICE_FLAG_PHY		1
#define to_mdio_common_driver(d) \
	container_of(d, struct mdio_driver_common, driver)

/* struct mdio_driver: Generic MDIO driver */
struct mdio_driver {
	struct mdio_driver_common mdiodrv;

	/*
	 * Called during discovery.  Used to set
	 * up device-specific structures, if any
	 */
	int (*probe)(struct mdio_device *mdiodev);

	/* Clears up any memory if needed */
	void (*remove)(struct mdio_device *mdiodev);
};
#define to_mdio_driver(d)						\
	container_of(to_mdio_common_driver(d), struct mdio_driver, mdiodrv)

void mdio_device_free(struct mdio_device *mdiodev);
struct mdio_device *mdio_device_create(struct mii_bus *bus, int addr);
int mdio_device_register(struct mdio_device *mdiodev);
void mdio_device_remove(struct mdio_device *mdiodev);
int mdio_driver_register(struct mdio_driver *drv);
void mdio_driver_unregister(struct mdio_driver *drv);
int mdio_device_bus_match(struct device *dev, struct device_driver *drv);

static inline bool mdio_phy_id_is_c45(int phy_id)
{
	return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
}

static inline __u16 mdio_phy_id_prtad(int phy_id)
{
	return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
}

static inline __u16 mdio_phy_id_devad(int phy_id)
{
	return phy_id & MDIO_PHY_ID_DEVAD;
}

/**
 * struct mdio_if_info - Ethernet controller MDIO interface
 * @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
 * @mmds: Mask of MMDs expected to be present in the PHY.  This must be
 *	non-zero unless @prtad = %MDIO_PRTAD_NONE.
 * @mode_support: MDIO modes supported.  If %MDIO_SUPPORTS_C22 is set then
 *	MII register access will be passed through with @devad =
 *	%MDIO_DEVAD_NONE.  If %MDIO_EMULATE_C22 is set then access to
 *	commonly used clause 22 registers will be translated into
 *	clause 45 registers.
 * @dev: Net device structure
 * @mdio_read: Register read function; returns value or negative error code
 * @mdio_write: Register write function; returns 0 or negative error code
 */
struct mdio_if_info {
	int prtad;
	u32 mmds;
	unsigned mode_support;

	struct net_device *dev;
	int (*mdio_read)(struct net_device *dev, int prtad, int devad,
			 u16 addr);
	int (*mdio_write)(struct net_device *dev, int prtad, int devad,
			  u16 addr, u16 val);
};

#define MDIO_PRTAD_NONE			(-1)
#define MDIO_DEVAD_NONE			(-1)
#define MDIO_SUPPORTS_C22		1
#define MDIO_SUPPORTS_C45		2
#define MDIO_EMULATE_C22		4

struct ethtool_cmd;
struct ethtool_pauseparam;
extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
extern int mdio_set_flag(const struct mdio_if_info *mdio,
			 int prtad, int devad, u16 addr, int mask,
			 bool sense);
extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
				      struct ethtool_cmd *ecmd,
				      u32 npage_adv, u32 npage_lpa);
extern void
mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
				   struct ethtool_link_ksettings *cmd,
				   u32 npage_adv, u32 npage_lpa);

/**
 * mdio45_ethtool_gset - get settings for ETHTOOL_GSET
 * @mdio: MDIO interface
 * @ecmd: Ethtool request structure
 *
 * Since the CSRs for auto-negotiation using next pages are not fully
 * standardised, this function does not attempt to decode them.  Use
 * mdio45_ethtool_gset_npage() to specify advertisement bits from next
 * pages.
 */
static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
				       struct ethtool_cmd *ecmd)
{
	mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
}

/**
 * mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
 * @mdio: MDIO interface
 * @cmd: Ethtool request structure
 *
 * Since the CSRs for auto-negotiation using next pages are not fully
 * standardised, this function does not attempt to decode them.  Use
 * mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
 * from next pages.
 */
static inline void
mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
			     struct ethtool_link_ksettings *cmd)
{
	mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
}

extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
			  struct mii_ioctl_data *mii_data, int cmd);

/**
 * mmd_eee_cap_to_ethtool_sup_t
 * @eee_cap: value of the MMD EEE Capability register
 *
 * A small helper function that translates MMD EEE Capability (3.20) bits
 * to ethtool supported settings.
 */
static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
{
	u32 supported = 0;

	if (eee_cap & MDIO_EEE_100TX)
		supported |= SUPPORTED_100baseT_Full;
	if (eee_cap & MDIO_EEE_1000T)
		supported |= SUPPORTED_1000baseT_Full;
	if (eee_cap & MDIO_EEE_10GT)
		supported |= SUPPORTED_10000baseT_Full;
	if (eee_cap & MDIO_EEE_1000KX)
		supported |= SUPPORTED_1000baseKX_Full;
	if (eee_cap & MDIO_EEE_10GKX4)
		supported |= SUPPORTED_10000baseKX4_Full;
	if (eee_cap & MDIO_EEE_10GKR)
		supported |= SUPPORTED_10000baseKR_Full;

	return supported;
}

/**
 * mmd_eee_adv_to_ethtool_adv_t
 * @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
 *
 * A small helper function that translates the MMD EEE Advertisment (7.60)
 * and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
 * settings.
 */
static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
{
	u32 adv = 0;

	if (eee_adv & MDIO_EEE_100TX)
		adv |= ADVERTISED_100baseT_Full;
	if (eee_adv & MDIO_EEE_1000T)
		adv |= ADVERTISED_1000baseT_Full;
	if (eee_adv & MDIO_EEE_10GT)
		adv |= ADVERTISED_10000baseT_Full;
	if (eee_adv & MDIO_EEE_1000KX)
		adv |= ADVERTISED_1000baseKX_Full;
	if (eee_adv & MDIO_EEE_10GKX4)
		adv |= ADVERTISED_10000baseKX4_Full;
	if (eee_adv & MDIO_EEE_10GKR)
		adv |= ADVERTISED_10000baseKR_Full;

	return adv;
}

/**
 * ethtool_adv_to_mmd_eee_adv_t
 * @adv: the ethtool advertisement settings
 *
 * A small helper function that translates ethtool advertisement settings
 * to EEE advertisements for the MMD EEE Advertisement (7.60) and
 * MMD EEE Link Partner Ability (7.61) registers.
 */
static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
{
	u16 reg = 0;

	if (adv & ADVERTISED_100baseT_Full)
		reg |= MDIO_EEE_100TX;
	if (adv & ADVERTISED_1000baseT_Full)
		reg |= MDIO_EEE_1000T;
	if (adv & ADVERTISED_10000baseT_Full)
		reg |= MDIO_EEE_10GT;
	if (adv & ADVERTISED_1000baseKX_Full)
		reg |= MDIO_EEE_1000KX;
	if (adv & ADVERTISED_10000baseKX4_Full)
		reg |= MDIO_EEE_10GKX4;
	if (adv & ADVERTISED_10000baseKR_Full)
		reg |= MDIO_EEE_10GKR;

	return reg;
}

int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);

int mdiobus_register_device(struct mdio_device *mdiodev);
int mdiobus_unregister_device(struct mdio_device *mdiodev);
bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr);

/**
 * mdio_module_driver() - Helper macro for registering mdio drivers
 *
 * Helper macro for MDIO drivers which do not do anything special in module
 * init/exit. Each module may only use this macro once, and calling it
 * replaces module_init() and module_exit().
 */
#define mdio_module_driver(_mdio_driver)				\
static int __init mdio_module_init(void)				\
{									\
	return mdio_driver_register(&_mdio_driver);			\
}									\
module_init(mdio_module_init);						\
static void __exit mdio_module_exit(void)				\
{									\
	mdio_driver_unregister(&_mdio_driver);				\
}									\
module_exit(mdio_module_exit)

#endif /* __LINUX_MDIO_H__ */
Commit	Line	Data
52c94dfa BH	1	/*
	2	* linux/mdio.h: definitions for MDIO (clause 45) transceivers
	3	* Copyright 2006-2009 Solarflare Communications Inc.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License version 2 as published
	7	* by the Free Software Foundation, incorporated herein by reference.
	8	*/
52c94dfa BH	9	#ifndef __LINUX_MDIO_H__
	10	#define __LINUX_MDIO_H__
	11
607ca46e	12	#include <uapi/linux/mdio.h>
648ea013	13	#include <linux/mod_devicetable.h>
52c94dfa	14
bac83c65	15	struct mii_bus;
9c717758	16
9a6f2b01 AL	17	/* Multiple levels of nesting are possible. However typically this is
	18	* limited to nested DSA like layer, a MUX layer, and the normal
	19	* user. Instead of trying to handle the general case, just define
	20	* these cases.
	21	*/
	22	enum mdio_mutex_lock_class {
	23	MDIO_MUTEX_NORMAL,
	24	MDIO_MUTEX_MUX,
	25	MDIO_MUTEX_NESTED,
	26	};
	27
e5a03bfd AL	28	struct mdio_device {
e5a03bfd AL	29	struct device dev;
a9049e0c	30
bc87922f	31	const struct dev_pm_ops *pm_ops;
e5a03bfd	32	struct mii_bus *bus;
648ea013	33	char modalias[MDIO_NAME_SIZE];
711fdba3	34
e76a4957	35	int (bus_match)(struct device dev, struct device_driver *drv);
711fdba3 AL	36	void (device_free)(struct mdio_device mdiodev);
	37	void (device_remove)(struct mdio_device mdiodev);
	38
e5a03bfd AL	39	/* Bus address of the MDIO device (0-31) */
e5a03bfd AL	40	int addr;
7f854420	41	int flags;
e5a03bfd AL	42	};
	43	#define to_mdio_device(d) container_of(d, struct mdio_device, dev)
	44
a9049e0c AL	45	/* struct mdio_driver_common: Common to all MDIO drivers */
	46	struct mdio_driver_common {
	47	struct device_driver driver;
	48	int flags;
	49	};
7f854420	50	#define MDIO_DEVICE_FLAG_PHY 1
a9049e0c AL	51	#define to_mdio_common_driver(d) \
	52	container_of(d, struct mdio_driver_common, driver)
	53
	54	/* struct mdio_driver: Generic MDIO driver */
	55	struct mdio_driver {
	56	struct mdio_driver_common mdiodrv;
	57
	58	/*
	59	* Called during discovery. Used to set
	60	* up device-specific structures, if any
	61	*/
	62	int (probe)(struct mdio_device mdiodev);
	63
	64	/* Clears up any memory if needed */
	65	void (remove)(struct mdio_device mdiodev);
	66	};
	67	#define to_mdio_driver(d) \
	68	container_of(to_mdio_common_driver(d), struct mdio_driver, mdiodrv)
	69
	70	void mdio_device_free(struct mdio_device *mdiodev);
	71	struct mdio_device mdio_device_create(struct mii_bus bus, int addr);
	72	int mdio_device_register(struct mdio_device *mdiodev);
	73	void mdio_device_remove(struct mdio_device *mdiodev);
	74	int mdio_driver_register(struct mdio_driver *drv);
	75	void mdio_driver_unregister(struct mdio_driver *drv);
648ea013	76	int mdio_device_bus_match(struct device dev, struct device_driver drv);
7f854420	77
52c94dfa BH	78	static inline bool mdio_phy_id_is_c45(int phy_id)
	79	{
	80	return (phy_id & MDIO_PHY_ID_C45) && !(phy_id & ~MDIO_PHY_ID_C45_MASK);
	81	}
	82
	83	static inline __u16 mdio_phy_id_prtad(int phy_id)
	84	{
	85	return (phy_id & MDIO_PHY_ID_PRTAD) >> 5;
	86	}
	87
	88	static inline __u16 mdio_phy_id_devad(int phy_id)
	89	{
	90	return phy_id & MDIO_PHY_ID_DEVAD;
	91	}
	92
1b1c2e95 BH	93	/**
	94	* struct mdio_if_info - Ethernet controller MDIO interface
	95	* @prtad: PRTAD of the PHY (%MDIO_PRTAD_NONE if not present/unknown)
	96	* @mmds: Mask of MMDs expected to be present in the PHY. This must be
	97	* non-zero unless @prtad = %MDIO_PRTAD_NONE.
	98	* @mode_support: MDIO modes supported. If %MDIO_SUPPORTS_C22 is set then
	99	* MII register access will be passed through with @devad =
	100	* %MDIO_DEVAD_NONE. If %MDIO_EMULATE_C22 is set then access to
	101	* commonly used clause 22 registers will be translated into
	102	* clause 45 registers.
	103	* @dev: Net device structure
	104	* @mdio_read: Register read function; returns value or negative error code
	105	* @mdio_write: Register write function; returns 0 or negative error code
	106	*/
	107	struct mdio_if_info {
	108	int prtad;
23428e6b	109	u32 mmds;
1b1c2e95 BH	110	unsigned mode_support;
	111
	112	struct net_device *dev;
	113	int (mdio_read)(struct net_device dev, int prtad, int devad,
	114	u16 addr);
	115	int (mdio_write)(struct net_device dev, int prtad, int devad,
	116	u16 addr, u16 val);
	117	};
	118
	119	#define MDIO_PRTAD_NONE (-1)
	120	#define MDIO_DEVAD_NONE (-1)
9c717758 BH	121	#define MDIO_SUPPORTS_C22 1
9c717758 BH	122	#define MDIO_SUPPORTS_C45 2
1b1c2e95 BH	123	#define MDIO_EMULATE_C22 4
	124
	125	struct ethtool_cmd;
	126	struct ethtool_pauseparam;
	127	extern int mdio45_probe(struct mdio_if_info *mdio, int prtad);
	128	extern int mdio_set_flag(const struct mdio_if_info *mdio,
	129	int prtad, int devad, u16 addr, int mask,
	130	bool sense);
	131	extern int mdio45_links_ok(const struct mdio_if_info *mdio, u32 mmds);
	132	extern int mdio45_nway_restart(const struct mdio_if_info *mdio);
	133	extern void mdio45_ethtool_gset_npage(const struct mdio_if_info *mdio,
	134	struct ethtool_cmd *ecmd,
	135	u32 npage_adv, u32 npage_lpa);
8e4881aa PR	136	extern void
	137	mdio45_ethtool_ksettings_get_npage(const struct mdio_if_info *mdio,
	138	struct ethtool_link_ksettings *cmd,
	139	u32 npage_adv, u32 npage_lpa);
1b1c2e95 BH	140
	141	/**
	142	* mdio45_ethtool_gset - get settings for ETHTOOL_GSET
	143	* @mdio: MDIO interface
	144	* @ecmd: Ethtool request structure
	145	*
	146	* Since the CSRs for auto-negotiation using next pages are not fully
	147	* standardised, this function does not attempt to decode them. Use
	148	* mdio45_ethtool_gset_npage() to specify advertisement bits from next
	149	* pages.
	150	*/
	151	static inline void mdio45_ethtool_gset(const struct mdio_if_info *mdio,
	152	struct ethtool_cmd *ecmd)
	153	{
	154	mdio45_ethtool_gset_npage(mdio, ecmd, 0, 0);
	155	}
	156
8e4881aa PR	157	/**
	158	* mdio45_ethtool_ksettings_get - get settings for ETHTOOL_GLINKSETTINGS
	159	* @mdio: MDIO interface
	160	* @cmd: Ethtool request structure
	161	*
	162	* Since the CSRs for auto-negotiation using next pages are not fully
	163	* standardised, this function does not attempt to decode them. Use
	164	* mdio45_ethtool_ksettings_get_npage() to specify advertisement bits
	165	* from next pages.
	166	*/
	167	static inline void
	168	mdio45_ethtool_ksettings_get(const struct mdio_if_info *mdio,
	169	struct ethtool_link_ksettings *cmd)
	170	{
	171	mdio45_ethtool_ksettings_get_npage(mdio, cmd, 0, 0);
	172	}
	173
1b1c2e95 BH	174	extern int mdio_mii_ioctl(const struct mdio_if_info *mdio,
	175	struct mii_ioctl_data *mii_data, int cmd);
	176
b32607dd AB	177	/**
	178	* mmd_eee_cap_to_ethtool_sup_t
	179	* @eee_cap: value of the MMD EEE Capability register
	180	*
	181	* A small helper function that translates MMD EEE Capability (3.20) bits
	182	* to ethtool supported settings.
	183	*/
	184	static inline u32 mmd_eee_cap_to_ethtool_sup_t(u16 eee_cap)
	185	{
	186	u32 supported = 0;
	187
	188	if (eee_cap & MDIO_EEE_100TX)
	189	supported \|= SUPPORTED_100baseT_Full;
	190	if (eee_cap & MDIO_EEE_1000T)
	191	supported \|= SUPPORTED_1000baseT_Full;
	192	if (eee_cap & MDIO_EEE_10GT)
	193	supported \|= SUPPORTED_10000baseT_Full;
	194	if (eee_cap & MDIO_EEE_1000KX)
	195	supported \|= SUPPORTED_1000baseKX_Full;
	196	if (eee_cap & MDIO_EEE_10GKX4)
	197	supported \|= SUPPORTED_10000baseKX4_Full;
	198	if (eee_cap & MDIO_EEE_10GKR)
	199	supported \|= SUPPORTED_10000baseKR_Full;
	200
	201	return supported;
	202	}
	203
	204	/**
	205	* mmd_eee_adv_to_ethtool_adv_t
	206	* @eee_adv: value of the MMD EEE Advertisement/Link Partner Ability registers
	207	*
	208	* A small helper function that translates the MMD EEE Advertisment (7.60)
	209	* and MMD EEE Link Partner Ability (7.61) bits to ethtool advertisement
	210	* settings.
	211	*/
	212	static inline u32 mmd_eee_adv_to_ethtool_adv_t(u16 eee_adv)
	213	{
	214	u32 adv = 0;
	215
	216	if (eee_adv & MDIO_EEE_100TX)
	217	adv \|= ADVERTISED_100baseT_Full;
	218	if (eee_adv & MDIO_EEE_1000T)
	219	adv \|= ADVERTISED_1000baseT_Full;
	220	if (eee_adv & MDIO_EEE_10GT)
	221	adv \|= ADVERTISED_10000baseT_Full;
	222	if (eee_adv & MDIO_EEE_1000KX)
	223	adv \|= ADVERTISED_1000baseKX_Full;
	224	if (eee_adv & MDIO_EEE_10GKX4)
	225	adv \|= ADVERTISED_10000baseKX4_Full;
	226	if (eee_adv & MDIO_EEE_10GKR)
	227	adv \|= ADVERTISED_10000baseKR_Full;
	228
	229	return adv;
	230	}
	231
	232	/**
	233	* ethtool_adv_to_mmd_eee_adv_t
	234	* @adv: the ethtool advertisement settings
	235	*
	236	* A small helper function that translates ethtool advertisement settings
	237	* to EEE advertisements for the MMD EEE Advertisement (7.60) and
	238	* MMD EEE Link Partner Ability (7.61) registers.
	239	*/
	240	static inline u16 ethtool_adv_to_mmd_eee_adv_t(u32 adv)
241	{
242	u16 reg = 0;
243
244	if (adv & ADVERTISED_100baseT_Full)
245	reg \|= MDIO_EEE_100TX;
246	if (adv & ADVERTISED_1000baseT_Full)
247	reg \|= MDIO_EEE_1000T;
248	if (adv & ADVERTISED_10000baseT_Full)
249	reg \|= MDIO_EEE_10GT;
250	if (adv & ADVERTISED_1000baseKX_Full)
251	reg \|= MDIO_EEE_1000KX;
252	if (adv & ADVERTISED_10000baseKX4_Full)
253	reg \|= MDIO_EEE_10GKX4;
254	if (adv & ADVERTISED_10000baseKR_Full)
255	reg \|= MDIO_EEE_10GKR;
256
257	return reg;
258	}
259
bac83c65 AL	260	int mdiobus_read(struct mii_bus *bus, int addr, u32 regnum);
	261	int mdiobus_read_nested(struct mii_bus *bus, int addr, u32 regnum);
	262	int mdiobus_write(struct mii_bus *bus, int addr, u32 regnum, u16 val);
	263	int mdiobus_write_nested(struct mii_bus *bus, int addr, u32 regnum, u16 val);
	264
7f854420 AL	265	int mdiobus_register_device(struct mdio_device *mdiodev);
	266	int mdiobus_unregister_device(struct mdio_device *mdiodev);
	267	bool mdiobus_is_registered_device(struct mii_bus *bus, int addr);
	268	struct phy_device mdiobus_get_phy(struct mii_bus bus, int addr);
	269
a9049e0c	270	/**
b70f43a1	271	* mdio_module_driver() - Helper macro for registering mdio drivers
a9049e0c AL	272	*
	273	* Helper macro for MDIO drivers which do not do anything special in module
	274	* init/exit. Each module may only use this macro once, and calling it
	275	* replaces module_init() and module_exit().
	276	*/
	277	#define mdio_module_driver(_mdio_driver) \
	278	static int __init mdio_module_init(void) \
	279	{ \
	280	return mdio_driver_register(&_mdio_driver); \
	281	} \
	282	module_init(mdio_module_init); \
	283	static void __exit mdio_module_exit(void) \
	284	{ \
	285	mdio_driver_unregister(&_mdio_driver); \
	286	} \
	287	module_exit(mdio_module_exit)
	288
52c94dfa	289	#endif /* __LINUX_MDIO_H__ */