From e5a03bfd873c29eb786655ef2e95e53ed242b404 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 Jan 2016 20:11:16 +0100
Subject: phy: Add an mdio_device structure

Not all devices attached to an MDIO bus are phys. So add an
mdio_device structure to represent the generic parts of an mdio
device, and place this structure into the phy_device.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/agere/et131x.c b/drivers/net/ethernet/agere/et131x.c
index f29d45e..3f3bcbe 100644
--- a/drivers/net/ethernet/agere/et131x.c
+++ b/drivers/net/ethernet/agere/et131x.c
@@ -1235,7 +1235,7 @@ static int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
 	if (!phydev)
 		return -EIO;
 
-	return et131x_phy_mii_read(adapter, phydev->addr, reg, value);
+	return et131x_phy_mii_read(adapter, phydev->mdio.addr, reg, value);
 }
 
 static int et131x_mii_write(struct et131x_adapter *adapter, u8 addr, u8 reg,
@@ -1462,7 +1462,7 @@ static void et1310_phy_power_switch(struct et131x_adapter *adapter, bool down)
 	data &= ~BMCR_PDOWN;
 	if (down)
 		data |= BMCR_PDOWN;
-	et131x_mii_write(adapter, phydev->addr, MII_BMCR, data);
+	et131x_mii_write(adapter, phydev->mdio.addr, MII_BMCR, data);
 }
 
 /* et131x_xcvr_init - Init the phy if we are setting it into force mode */
@@ -1490,7 +1490,7 @@ static void et131x_xcvr_init(struct et131x_adapter *adapter)
 		else
 			lcr2 |= (LED_VAL_LINKON << LED_TXRX_SHIFT);
 
-		et131x_mii_write(adapter, phydev->addr, PHY_LED_2, lcr2);
+		et131x_mii_write(adapter, phydev->mdio.addr, PHY_LED_2, lcr2);
 	}
 }
 
@@ -3192,14 +3192,14 @@ static void et131x_adjust_link(struct net_device *netdev)
 
 			et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
 					&register18);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_MPHY_CONTROL_REG,
 					 register18 | 0x4);
-			et131x_mii_write(adapter, phydev->addr, PHY_INDEX_REG,
-					 register18 | 0x8402);
-			et131x_mii_write(adapter, phydev->addr, PHY_DATA_REG,
-					 register18 | 511);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_INDEX_REG, register18 | 0x8402);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_DATA_REG, register18 | 511);
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_MPHY_CONTROL_REG, register18);
 		}
 
@@ -3212,8 +3212,8 @@ static void et131x_adjust_link(struct net_device *netdev)
 			et131x_mii_read(adapter, PHY_CONFIG, &reg);
 			reg &= ~ET_PHY_CONFIG_TX_FIFO_DEPTH;
 			reg |= ET_PHY_CONFIG_FIFO_DEPTH_32;
-			et131x_mii_write(adapter, phydev->addr, PHY_CONFIG,
-					 reg);
+			et131x_mii_write(adapter, phydev->mdio.addr,
+					 PHY_CONFIG, reg);
 		}
 
 		et131x_set_rx_dma_timer(adapter);
@@ -3226,14 +3226,14 @@ static void et131x_adjust_link(struct net_device *netdev)
 
 			et131x_mii_read(adapter, PHY_MPHY_CONTROL_REG,
 					&register18);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_MPHY_CONTROL_REG,
 					 register18 | 0x4);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_INDEX_REG, register18 | 0x8402);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_DATA_REG, register18 | 511);
-			et131x_mii_write(adapter, phydev->addr,
+			et131x_mii_write(adapter, phydev->mdio.addr,
 					 PHY_MPHY_CONTROL_REG, register18);
 		}
 
diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c
index 10d51e8..1747285 100644
--- a/drivers/net/ethernet/altera/altera_tse_main.c
+++ b/drivers/net/ethernet/altera/altera_tse_main.c
@@ -844,7 +844,7 @@ static int init_phy(struct net_device *dev)
 	}
 
 	netdev_dbg(dev, "attached to PHY %d UID 0x%08x Link = %d\n",
-		   phydev->addr, phydev->phy_id, phydev->link);
+		   phydev->mdio.addr, phydev->phy_id, phydev->link);
 
 	priv->phydev = phydev;
 	return 0;
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 4d08bc0..843a4a5 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2305,7 +2305,7 @@ static int b44_register_phy_one(struct b44 *bp)
 
 	bp->phydev = phydev;
 	bp->old_link = 0;
-	bp->phy_addr = phydev->addr;
+	bp->phy_addr = phydev->mdio.addr;
 
 	phy_attached_info(phydev);
 
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 4523acd..633b59d 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -401,7 +401,7 @@ int bcmgenet_mii_probe(struct net_device *dev)
 	 * Ethernet MAC ISRs
 	 */
 	if (priv->internal_phy)
-		priv->mii_bus->irq[phydev->addr] = PHY_IGNORE_INTERRUPT;
+		priv->mii_bus->irq[phydev->mdio.addr] = PHY_IGNORE_INTERRUPT;
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/broadcom/sb1250-mac.c b/drivers/net/ethernet/broadcom/sb1250-mac.c
index 68a3637..768c18d 100644
--- a/drivers/net/ethernet/broadcom/sb1250-mac.c
+++ b/drivers/net/ethernet/broadcom/sb1250-mac.c
@@ -2366,8 +2366,8 @@ static int sbmac_mii_probe(struct net_device *dev)
 		return -ENXIO;
 	}
 
-	phy_dev = phy_connect(dev, dev_name(&phy_dev->dev), &sbmac_mii_poll,
-			      PHY_INTERFACE_MODE_GMII);
+	phy_dev = phy_connect(dev, dev_name(&phy_dev->mdio.dev),
+			      &sbmac_mii_poll, PHY_INTERFACE_MODE_GMII);
 	if (IS_ERR(phy_dev)) {
 		printk(KERN_ERR "%s: could not attach to PHY\n", dev->name);
 		return PTR_ERR(phy_dev);
diff --git a/drivers/net/ethernet/freescale/fman/fman_dtsec.c b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
index 587f9b4..6b1261c 100644
--- a/drivers/net/ethernet/freescale/fman/fman_dtsec.c
+++ b/drivers/net/ethernet/freescale/fman/fman_dtsec.c
@@ -1295,7 +1295,7 @@ int dtsec_init(struct fman_mac *dtsec)
 
 	err = init(dtsec->regs, dtsec_drv_param, dtsec->phy_if,
 		   dtsec->max_speed, (u8 *)eth_addr, dtsec->exceptions,
-		   dtsec->tbiphy->addr);
+		   dtsec->tbiphy->mdio.addr);
 	if (err) {
 		free_init_resources(dtsec);
 		pr_err("DTSEC version doesn't support this i/f mode\n");
@@ -1434,11 +1434,11 @@ struct fman_mac *dtsec_config(struct fman_mac_params *params)
 	dtsec->tbiphy = of_phy_find_device(params->internal_phy_node);
 	if (!dtsec->tbiphy) {
 		pr_err("of_phy_find_device (TBI PHY) failed\n");
-		put_device(&dtsec->tbiphy->dev);
+		put_device(&dtsec->tbiphy->mdio.dev);
 		goto err_dtsec_drv_param;
 	}
 
-	put_device(&dtsec->tbiphy->dev);
+	put_device(&dtsec->tbiphy->mdio.dev);
 
 	/* Save FMan revision */
 	fman_get_revision(dtsec->fm, &dtsec->fm_rev_info);
diff --git a/drivers/net/ethernet/freescale/fman/fman_memac.c b/drivers/net/ethernet/freescale/fman/fman_memac.c
index 58bb720..45e98fd 100644
--- a/drivers/net/ethernet/freescale/fman/fman_memac.c
+++ b/drivers/net/ethernet/freescale/fman/fman_memac.c
@@ -1054,15 +1054,15 @@ int memac_init(struct fman_mac *memac)
 			 * register address space and access each one of 4
 			 * ports inside QSGMII.
 			 */
-			phy_addr = memac->pcsphy->addr;
+			phy_addr = memac->pcsphy->mdio.addr;
 			qsmgii_phy_addr = (u8)((phy_addr << 2) | i);
-			memac->pcsphy->addr = qsmgii_phy_addr;
+			memac->pcsphy->mdio.addr = qsmgii_phy_addr;
 			if (memac->basex_if)
 				setup_sgmii_internal_phy_base_x(memac);
 			else
 				setup_sgmii_internal_phy(memac, fixed_link);
 
-			memac->pcsphy->addr = phy_addr;
+			memac->pcsphy->mdio.addr = phy_addr;
 		}
 	}
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index 016743e..c158d40 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -254,7 +254,7 @@ static void restart(struct net_device *dev)
 	int r;
 	u32 addrhi, addrlo;
 
-	struct mii_bus* mii = fep->phydev->bus;
+	struct mii_bus *mii = fep->phydev->mdio.bus;
 	struct fec_info* fec_inf = mii->priv;
 
 	r = whack_reset(fep->fec.fecp);
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index 4e394f7..2aa7b40 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -1834,7 +1834,7 @@ static void gfar_configure_serdes(struct net_device *dev)
 	 * several seconds for it to come back.
 	 */
 	if (phy_read(tbiphy, MII_BMSR) & BMSR_LSTATUS) {
-		put_device(&tbiphy->dev);
+		put_device(&tbiphy->mdio.dev);
 		return;
 	}
 
@@ -1849,7 +1849,7 @@ static void gfar_configure_serdes(struct net_device *dev)
 		  BMCR_ANENABLE | BMCR_ANRESTART | BMCR_FULLDPLX |
 		  BMCR_SPEED1000);
 
-	put_device(&tbiphy->dev);
+	put_device(&tbiphy->mdio.dev);
 }
 
 static int __gfar_is_rx_idle(struct gfar_private *priv)
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 650f788..0e7f24e 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -1385,7 +1385,7 @@ static int adjust_enet_interface(struct ucc_geth_private *ugeth)
 		value &= ~0x1000;	/* Turn off autonegotiation */
 		phy_write(tbiphy, ENET_TBI_MII_CR, value);
 
-		put_device(&tbiphy->dev);
+		put_device(&tbiphy->mdio.dev);
 	}
 
 	init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
@@ -1705,7 +1705,7 @@ static void uec_configure_serdes(struct net_device *dev)
 	 * several seconds for it to come back.
 	 */
 	if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS) {
-		put_device(&tbiphy->dev);
+		put_device(&tbiphy->mdio.dev);
 		return;
 	}
 
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 4eddbeb..3df2284 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -71,7 +71,7 @@ static void hns_get_mdix_mode(struct net_device *net_dev,
 	struct hns_nic_priv *priv = netdev_priv(net_dev);
 	struct phy_device *phy_dev = priv->phy;
 
-	if (!phy_dev || !phy_dev->bus) {
+	if (!phy_dev || !phy_dev->mdio.bus) {
 		cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
 		cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 		return;
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 4eba2ed..a0c0383 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -3133,7 +3133,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 		if (!mp->phy)
 			err = -ENODEV;
 		else
-			phy_addr_set(mp, mp->phy->addr);
+			phy_addr_set(mp, mp->phy->mdio.addr);
 	} else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
 		mp->phy = phy_scan(mp, pd->phy_addr);
 
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 15b1f6b..fabc8df 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3714,7 +3714,7 @@ static int mvneta_probe(struct platform_device *pdev)
 
 		mvneta_fixed_link_update(pp, phy);
 
-		put_device(&phy->dev);
+		put_device(&phy->mdio.dev);
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index c74e78d..8af2556 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -864,8 +864,8 @@ static int smsc911x_phy_loopbacktest(struct net_device *dev)
 
 	for (i = 0; i < 10; i++) {
 		/* Set PHY to 10/FD, no ANEG, and loopback mode */
-		smsc911x_mii_write(phy_dev->bus, phy_dev->addr,	MII_BMCR,
-			BMCR_LOOPBACK | BMCR_FULLDPLX);
+		smsc911x_mii_write(phy_dev->mdio.bus, phy_dev->mdio.addr,
+				   MII_BMCR, BMCR_LOOPBACK | BMCR_FULLDPLX);
 
 		/* Enable MAC tx/rx, FD */
 		spin_lock_irqsave(&pdata->mac_lock, flags);
@@ -893,7 +893,7 @@ static int smsc911x_phy_loopbacktest(struct net_device *dev)
 	spin_unlock_irqrestore(&pdata->mac_lock, flags);
 
 	/* Cancel PHY loopback mode */
-	smsc911x_mii_write(phy_dev->bus, phy_dev->addr, MII_BMCR, 0);
+	smsc911x_mii_write(phy_dev->mdio.bus, phy_dev->mdio.addr, MII_BMCR, 0);
 
 	smsc911x_reg_write(pdata, TX_CFG, 0);
 	smsc911x_reg_write(pdata, RX_CFG, 0);
@@ -1021,7 +1021,7 @@ static int smsc911x_mii_probe(struct net_device *dev)
 	}
 
 	SMSC_TRACE(pdata, probe, "PHY: addr %d, phy_id 0x%08X",
-		   phydev->addr, phydev->phy_id);
+		   phydev->mdio.addr, phydev->phy_id);
 
 	ret = phy_connect_direct(dev, phydev, &smsc911x_phy_adjust_link,
 				 pdata->config.phy_interface);
@@ -1988,7 +1988,8 @@ smsc911x_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs,
 	}
 
 	for (i = 0; i <= 31; i++)
-		data[j++] = smsc911x_mii_read(phy_dev->bus, phy_dev->addr, i);
+		data[j++] = smsc911x_mii_read(phy_dev->mdio.bus,
+					      phy_dev->mdio.addr, i);
 }
 
 static void smsc911x_eeprom_enable_access(struct smsc911x_data *pdata)
diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index 59bf4c3..53355c3 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -315,7 +315,8 @@ smsc9420_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs,
 		return;
 
 	for (i = 0; i <= 31; i++)
-		data[j++] = smsc9420_mii_read(phy_dev->bus, phy_dev->addr, i);
+		data[j++] = smsc9420_mii_read(phy_dev->mdio.bus,
+					      phy_dev->mdio.addr, i);
 }
 
 static void smsc9420_eeprom_enable_access(struct smsc9420_pdata *pd)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 49544c0..42fdfd4 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2050,7 +2050,8 @@ static int cpsw_probe_dt(struct cpsw_priv *priv,
 			if (!phy_dev)
 				return -ENODEV;
 			snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
-				 PHY_ID_FMT, phy_dev->bus->id, phy_dev->addr);
+				 PHY_ID_FMT, phy_dev->mdio.bus->id,
+				 phy_dev->mdio.addr);
 		} else if (parp) {
 			u32 phyid;
 			struct device_node *mdio_node;
diff --git a/drivers/net/ethernet/ti/davinci_mdio.c b/drivers/net/ethernet/ti/davinci_mdio.c
index 88e8e60..78299c1 100644
--- a/drivers/net/ethernet/ti/davinci_mdio.c
+++ b/drivers/net/ethernet/ti/davinci_mdio.c
@@ -396,7 +396,7 @@ static int davinci_mdio_probe(struct platform_device *pdev)
 		phy = data->bus->phy_map[addr];
 		if (phy) {
 			dev_info(dev, "phy[%d]: device %s, driver %s\n",
-				 phy->addr, phydev_name(phy),
+				 phy->mdio.addr, phydev_name(phy),
 				 phy->drv ? phy->drv->name : "unknown");
 		}
 	}
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index d1a0167..e324b30 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -827,7 +827,7 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
 			dev_info(dev,
 				 "MDIO of the phy is not registered yet\n");
 		else
-			put_device(&phydev->dev);
+			put_device(&phydev->mdio.dev);
 		return 0;
 	}
 
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 62361f8..b76ac09 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -190,7 +190,7 @@ static int at803x_resume(struct phy_device *phydev)
 
 static int at803x_probe(struct phy_device *phydev)
 {
-	struct device *dev = &phydev->dev;
+	struct device *dev = &phydev->mdio.dev;
 	struct at803x_priv *priv;
 	struct gpio_desc *gpiod_reset;
 
diff --git a/drivers/net/phy/bcm87xx.c b/drivers/net/phy/bcm87xx.c
index 71b491c..e536e30 100644
--- a/drivers/net/phy/bcm87xx.c
+++ b/drivers/net/phy/bcm87xx.c
@@ -40,10 +40,10 @@ static int bcm87xx_of_reg_init(struct phy_device *phydev)
 	const __be32 *paddr_end;
 	int len, ret;
 
-	if (!phydev->dev.of_node)
+	if (!phydev->mdio.dev.of_node)
 		return 0;
 
-	paddr = of_get_property(phydev->dev.of_node,
+	paddr = of_get_property(phydev->mdio.dev.of_node,
 				"broadcom,c45-reg-init", &len);
 	if (!paddr)
 		return 0;
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 47b7117..39da6fc 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -220,9 +220,10 @@ static void rx_timestamp_work(struct work_struct *work);
 
 #define BROADCAST_ADDR 31
 
-static inline int broadcast_write(struct mii_bus *bus, u32 regnum, u16 val)
+static inline int broadcast_write(struct phy_device *phydev, u32 regnum,
+				  u16 val)
 {
-	return mdiobus_write(bus, BROADCAST_ADDR, regnum, val);
+	return mdiobus_write(phydev->mdio.bus, BROADCAST_ADDR, regnum, val);
 }
 
 /* Caller must hold extreg_lock. */
@@ -232,7 +233,7 @@ static int ext_read(struct phy_device *phydev, int page, u32 regnum)
 	int val;
 
 	if (dp83640->clock->page != page) {
-		broadcast_write(phydev->bus, PAGESEL, page);
+		broadcast_write(phydev, PAGESEL, page);
 		dp83640->clock->page = page;
 	}
 	val = phy_read(phydev, regnum);
@@ -247,11 +248,11 @@ static void ext_write(int broadcast, struct phy_device *phydev,
 	struct dp83640_private *dp83640 = phydev->priv;
 
 	if (dp83640->clock->page != page) {
-		broadcast_write(phydev->bus, PAGESEL, page);
+		broadcast_write(phydev, PAGESEL, page);
 		dp83640->clock->page = page;
 	}
 	if (broadcast)
-		broadcast_write(phydev->bus, regnum, val);
+		broadcast_write(phydev, regnum, val);
 	else
 		phy_write(phydev, regnum, val);
 }
@@ -1039,7 +1040,7 @@ static int choose_this_phy(struct dp83640_clock *clock,
 	if (chosen_phy == -1 && !clock->chosen)
 		return 1;
 
-	if (chosen_phy == phydev->addr)
+	if (chosen_phy == phydev->mdio.addr)
 		return 1;
 
 	return 0;
@@ -1103,10 +1104,10 @@ static int dp83640_probe(struct phy_device *phydev)
 	struct dp83640_private *dp83640;
 	int err = -ENOMEM, i;
 
-	if (phydev->addr == BROADCAST_ADDR)
+	if (phydev->mdio.addr == BROADCAST_ADDR)
 		return 0;
 
-	clock = dp83640_clock_get_bus(phydev->bus);
+	clock = dp83640_clock_get_bus(phydev->mdio.bus);
 	if (!clock)
 		goto no_clock;
 
@@ -1132,7 +1133,8 @@ static int dp83640_probe(struct phy_device *phydev)
 
 	if (choose_this_phy(clock, phydev)) {
 		clock->chosen = dp83640;
-		clock->ptp_clock = ptp_clock_register(&clock->caps, &phydev->dev);
+		clock->ptp_clock = ptp_clock_register(&clock->caps,
+						      &phydev->mdio.dev);
 		if (IS_ERR(clock->ptp_clock)) {
 			err = PTR_ERR(clock->ptp_clock);
 			goto no_register;
@@ -1158,7 +1160,7 @@ static void dp83640_remove(struct phy_device *phydev)
 	struct list_head *this, *next;
 	struct dp83640_private *tmp, *dp83640 = phydev->priv;
 
-	if (phydev->addr == BROADCAST_ADDR)
+	if (phydev->mdio.addr == BROADCAST_ADDR)
 		return;
 
 	enable_status_frames(phydev, false);
diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c
index e4c0b0c..74e4521 100644
--- a/drivers/net/phy/dp83867.c
+++ b/drivers/net/phy/dp83867.c
@@ -103,7 +103,7 @@ static int dp83867_config_intr(struct phy_device *phydev)
 static int dp83867_of_init(struct phy_device *phydev)
 {
 	struct dp83867_private *dp83867 = phydev->priv;
-	struct device *dev = &phydev->dev;
+	struct device *dev = &phydev->mdio.dev;
 	struct device_node *of_node = dev->of_node;
 	int ret;
 
@@ -137,7 +137,7 @@ static int dp83867_config_init(struct phy_device *phydev)
 	u16 val, delay;
 
 	if (!phydev->priv) {
-		dp83867 = devm_kzalloc(&phydev->dev, sizeof(*dp83867),
+		dp83867 = devm_kzalloc(&phydev->mdio.dev, sizeof(*dp83867),
 				       GFP_KERNEL);
 		if (!dp83867)
 			return -ENOMEM;
diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c
index 0a1cde6..ab9c473 100644
--- a/drivers/net/phy/fixed_phy.c
+++ b/drivers/net/phy/fixed_phy.c
@@ -197,11 +197,11 @@ int fixed_phy_set_link_update(struct phy_device *phydev,
 	struct fixed_mdio_bus *fmb = &platform_fmb;
 	struct fixed_phy *fp;
 
-	if (!phydev || !phydev->bus)
+	if (!phydev || !phydev->mdio.bus)
 		return -EINVAL;
 
 	list_for_each_entry(fp, &fmb->phys, node) {
-		if (fp->addr == phydev->addr) {
+		if (fp->addr == phydev->mdio.addr) {
 			fp->link_update = link_update;
 			fp->phydev = phydev;
 			return 0;
@@ -219,11 +219,11 @@ int fixed_phy_update_state(struct phy_device *phydev,
 	struct fixed_mdio_bus *fmb = &platform_fmb;
 	struct fixed_phy *fp;
 
-	if (!phydev || phydev->bus != fmb->mii_bus)
+	if (!phydev || phydev->mdio.bus != fmb->mii_bus)
 		return -EINVAL;
 
 	list_for_each_entry(fp, &fmb->phys, node) {
-		if (fp->addr == phydev->addr) {
+		if (fp->addr == phydev->mdio.addr) {
 #define _UPD(x) if (changed->x) \
 	fp->status.x = status->x
 			_UPD(link);
@@ -344,7 +344,7 @@ struct phy_device *fixed_phy_register(unsigned int irq,
 	}
 
 	of_node_get(np);
-	phy->dev.of_node = np;
+	phy->mdio.dev.of_node = np;
 	phy->is_pseudo_fixed_link = true;
 
 	switch (status->speed) {
diff --git a/drivers/net/phy/icplus.c b/drivers/net/phy/icplus.c
index 0dbc445..c12170d 100644
--- a/drivers/net/phy/icplus.c
+++ b/drivers/net/phy/icplus.c
@@ -53,43 +53,43 @@ static int ip175c_config_init(struct phy_device *phydev)
 	if (full_reset_performed == 0) {
 
 		/* master reset */
-		err = mdiobus_write(phydev->bus, 30, 0, 0x175c);
+		err = mdiobus_write(phydev->mdio.bus, 30, 0, 0x175c);
 		if (err < 0)
 			return err;
 
 		/* ensure no bus delays overlap reset period */
-		err = mdiobus_read(phydev->bus, 30, 0);
+		err = mdiobus_read(phydev->mdio.bus, 30, 0);
 
 		/* data sheet specifies reset period is 2 msec */
 		mdelay(2);
 
 		/* enable IP175C mode */
-		err = mdiobus_write(phydev->bus, 29, 31, 0x175c);
+		err = mdiobus_write(phydev->mdio.bus, 29, 31, 0x175c);
 		if (err < 0)
 			return err;
 
 		/* Set MII0 speed and duplex (in PHY mode) */
-		err = mdiobus_write(phydev->bus, 29, 22, 0x420);
+		err = mdiobus_write(phydev->mdio.bus, 29, 22, 0x420);
 		if (err < 0)
 			return err;
 
 		/* reset switch ports */
 		for (i = 0; i < 5; i++) {
-			err = mdiobus_write(phydev->bus, i,
+			err = mdiobus_write(phydev->mdio.bus, i,
 					    MII_BMCR, BMCR_RESET);
 			if (err < 0)
 				return err;
 		}
 
 		for (i = 0; i < 5; i++)
-			err = mdiobus_read(phydev->bus, i, MII_BMCR);
+			err = mdiobus_read(phydev->mdio.bus, i, MII_BMCR);
 
 		mdelay(2);
 
 		full_reset_performed = 1;
 	}
 
-	if (phydev->addr != 4) {
+	if (phydev->mdio.addr != 4) {
 		phydev->state = PHY_RUNNING;
 		phydev->speed = SPEED_100;
 		phydev->duplex = DUPLEX_FULL;
@@ -184,7 +184,7 @@ static int ip101a_g_config_init(struct phy_device *phydev)
 
 static int ip175c_read_status(struct phy_device *phydev)
 {
-	if (phydev->addr == 4) /* WAN port */
+	if (phydev->mdio.addr == 4) /* WAN port */
 		genphy_read_status(phydev);
 	else
 		/* Don't need to read status for switch ports */
@@ -195,7 +195,7 @@ static int ip175c_read_status(struct phy_device *phydev)
 
 static int ip175c_config_aneg(struct phy_device *phydev)
 {
-	if (phydev->addr == 4) /* WAN port */
+	if (phydev->mdio.addr == 4) /* WAN port */
 		genphy_config_aneg(phydev);
 
 	return 0;
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 50b5eac..f96c93c 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -300,10 +300,11 @@ static int marvell_of_reg_init(struct phy_device *phydev)
 	const __be32 *paddr;
 	int len, i, saved_page, current_page, page_changed, ret;
 
-	if (!phydev->dev.of_node)
+	if (!phydev->mdio.dev.of_node)
 		return 0;
 
-	paddr = of_get_property(phydev->dev.of_node, "marvell,reg-init", &len);
+	paddr = of_get_property(phydev->mdio.dev.of_node,
+				"marvell,reg-init", &len);
 	if (!paddr || len < (4 * sizeof(*paddr)))
 		return 0;
 
@@ -1060,7 +1061,7 @@ static int marvell_probe(struct phy_device *phydev)
 {
 	struct marvell_priv *priv;
 
-	priv = devm_kzalloc(&phydev->dev, sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 05381d0..e5b1ccd 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -200,16 +200,16 @@ EXPORT_SYMBOL(of_mdio_find_bus);
  * the phy. This allows auto-probed pyh devices to be supplied with information
  * passed in via DT.
  */
-static void of_mdiobus_link_phydev(struct mii_bus *mdio,
+static void of_mdiobus_link_phydev(struct mii_bus *bus,
 				   struct phy_device *phydev)
 {
-	struct device *dev = &phydev->dev;
+	struct device *dev = &phydev->mdio.dev;
 	struct device_node *child;
 
-	if (dev->of_node || !mdio->dev.of_node)
+	if (dev->of_node || !bus->dev.of_node)
 		return;
 
-	for_each_available_child_of_node(mdio->dev.of_node, child) {
+	for_each_available_child_of_node(bus->dev.of_node, child) {
 		int addr;
 		int ret;
 
@@ -227,7 +227,7 @@ static void of_mdiobus_link_phydev(struct mii_bus *mdio,
 			continue;
 		}
 
-		if (addr == phydev->addr) {
+		if (addr == phydev->mdio.addr) {
 			dev->of_node = child;
 			return;
 		}
@@ -522,7 +522,7 @@ static int mdio_bus_match(struct device *dev, struct device_driver *drv)
 
 static bool mdio_bus_phy_may_suspend(struct phy_device *phydev)
 {
-	struct device_driver *drv = phydev->dev.driver;
+	struct device_driver *drv = phydev->mdio.dev.driver;
 	struct phy_driver *phydrv = to_phy_driver(drv);
 	struct net_device *netdev = phydev->attached_dev;
 
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index bf72365..b51505b 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -350,7 +350,7 @@ static int ksz9021_load_values_from_of(struct phy_device *phydev,
 
 static int ksz9021_config_init(struct phy_device *phydev)
 {
-	const struct device *dev = &phydev->dev;
+	const struct device *dev = &phydev->mdio.dev;
 	const struct device_node *of_node = dev->of_node;
 	const struct device *dev_walker;
 
@@ -358,7 +358,7 @@ static int ksz9021_config_init(struct phy_device *phydev)
 	 * properties in the MAC node. Walk up the tree of devices to
 	 * find a device with an OF node.
 	 */
-	dev_walker = &phydev->dev;
+	dev_walker = &phydev->mdio.dev;
 	do {
 		of_node = dev_walker->of_node;
 		dev_walker = dev_walker->parent;
@@ -471,7 +471,7 @@ static int ksz9031_center_flp_timing(struct phy_device *phydev)
 
 static int ksz9031_config_init(struct phy_device *phydev)
 {
-	const struct device *dev = &phydev->dev;
+	const struct device *dev = &phydev->mdio.dev;
 	const struct device_node *of_node = dev->of_node;
 	static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"};
 	static const char *rx_data_skews[4] = {
@@ -630,12 +630,12 @@ static void kszphy_get_stats(struct phy_device *phydev,
 static int kszphy_probe(struct phy_device *phydev)
 {
 	const struct kszphy_type *type = phydev->drv->driver_data;
-	const struct device_node *np = phydev->dev.of_node;
+	const struct device_node *np = phydev->mdio.dev.of_node;
 	struct kszphy_priv *priv;
 	struct clk *clk;
 	int ret;
 
-	priv = devm_kzalloc(&phydev->dev, sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -658,7 +658,7 @@ static int kszphy_probe(struct phy_device *phydev)
 		priv->led_mode = -1;
 	}
 
-	clk = devm_clk_get(&phydev->dev, "rmii-ref");
+	clk = devm_clk_get(&phydev->mdio.dev, "rmii-ref");
 	/* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */
 	if (!IS_ERR_OR_NULL(clk)) {
 		unsigned long rate = clk_get_rate(clk);
diff --git a/drivers/net/phy/microchip.c b/drivers/net/phy/microchip.c
index 99df5bc..5e34b49 100644
--- a/drivers/net/phy/microchip.c
+++ b/drivers/net/phy/microchip.c
@@ -68,7 +68,7 @@ int lan88xx_suspend(struct phy_device *phydev)
 
 static int lan88xx_probe(struct phy_device *phydev)
 {
-	struct device *dev = &phydev->dev;
+	struct device *dev = &phydev->mdio.dev;
 	struct lan88xx_priv *priv;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -89,7 +89,7 @@ static int lan88xx_probe(struct phy_device *phydev)
 
 static void lan88xx_remove(struct phy_device *phydev)
 {
-	struct device *dev = &phydev->dev;
+	struct device *dev = &phydev->mdio.dev;
 	struct lan88xx_priv *priv = phydev->priv;
 
 	if (priv)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 56c8dd8..8763bb2 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -319,7 +319,7 @@ int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd)
 {
 	u32 speed = ethtool_cmd_speed(cmd);
 
-	if (cmd->phy_address != phydev->addr)
+	if (cmd->phy_address != phydev->mdio.addr)
 		return -EINVAL;
 
 	/* We make sure that we don't pass unsupported values in to the PHY */
@@ -375,7 +375,7 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
 		cmd->port = PORT_BNC;
 	else
 		cmd->port = PORT_MII;
-	cmd->phy_address = phydev->addr;
+	cmd->phy_address = phydev->mdio.addr;
 	cmd->transceiver = phy_is_internal(phydev) ?
 		XCVR_INTERNAL : XCVR_EXTERNAL;
 	cmd->autoneg = phydev->autoneg;
@@ -403,16 +403,17 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
 
 	switch (cmd) {
 	case SIOCGMIIPHY:
-		mii_data->phy_id = phydev->addr;
+		mii_data->phy_id = phydev->mdio.addr;
 		/* fall through */
 
 	case SIOCGMIIREG:
-		mii_data->val_out = mdiobus_read(phydev->bus, mii_data->phy_id,
+		mii_data->val_out = mdiobus_read(phydev->mdio.bus,
+						 mii_data->phy_id,
 						 mii_data->reg_num);
 		return 0;
 
 	case SIOCSMIIREG:
-		if (mii_data->phy_id == phydev->addr) {
+		if (mii_data->phy_id == phydev->mdio.addr) {
 			switch (mii_data->reg_num) {
 			case MII_BMCR:
 				if ((val & (BMCR_RESET | BMCR_ANENABLE)) == 0) {
@@ -445,10 +446,10 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
 			}
 		}
 
-		mdiobus_write(phydev->bus, mii_data->phy_id,
+		mdiobus_write(phydev->mdio.bus, mii_data->phy_id,
 			      mii_data->reg_num, val);
 
-		if (mii_data->phy_id == phydev->addr &&
+		if (mii_data->phy_id == phydev->mdio.addr &&
 		    mii_data->reg_num == MII_BMCR &&
 		    val & BMCR_RESET)
 			return phy_init_hw(phydev);
@@ -643,7 +644,7 @@ int phy_start_interrupts(struct phy_device *phydev)
 	if (request_irq(phydev->irq, phy_interrupt, 0, "phy_interrupt",
 			phydev) < 0) {
 		pr_warn("%s: Can't get IRQ %d (PHY)\n",
-			phydev->bus->name, phydev->irq);
+			phydev->mdio.bus->name, phydev->irq);
 		phydev->irq = PHY_POLL;
 		return 0;
 	}
@@ -1041,11 +1042,11 @@ static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
 int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad)
 {
 	struct phy_driver *phydrv = phydev->drv;
-	int addr = phydev->addr;
+	int addr = phydev->mdio.addr;
 	int value = -1;
 
 	if (!phydrv->read_mmd_indirect) {
-		struct mii_bus *bus = phydev->bus;
+		struct mii_bus *bus = phydev->mdio.bus;
 
 		mutex_lock(&bus->mdio_lock);
 		mmd_phy_indirect(bus, prtad, devad, addr);
@@ -1079,10 +1080,10 @@ void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
 				   int devad, u32 data)
 {
 	struct phy_driver *phydrv = phydev->drv;
-	int addr = phydev->addr;
+	int addr = phydev->mdio.addr;
 
 	if (!phydrv->write_mmd_indirect) {
-		struct mii_bus *bus = phydev->bus;
+		struct mii_bus *bus = phydev->mdio.bus;
 
 		mutex_lock(&bus->mdio_lock);
 		mmd_phy_indirect(bus, prtad, devad, addr);
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 68fe573..01e5d52 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -43,7 +43,7 @@ MODULE_LICENSE("GPL");
 
 void phy_device_free(struct phy_device *phydev)
 {
-	put_device(&phydev->dev);
+	put_device(&phydev->mdio.dev);
 }
 EXPORT_SYMBOL(phy_device_free);
 
@@ -65,7 +65,7 @@ static DEFINE_MUTEX(phy_fixup_lock);
 
 /**
  * phy_register_fixup - creates a new phy_fixup and adds it to the list
- * @bus_id: A string which matches phydev->dev.bus_id (or PHY_ANY_ID)
+ * @bus_id: A string which matches phydev->mdio.dev.bus_id (or PHY_ANY_ID)
  * @phy_uid: Used to match against phydev->phy_id (the UID of the PHY)
  *	It can also be PHY_ANY_UID
  * @phy_uid_mask: Applied to phydev->phy_id and fixup->phy_uid before
@@ -153,13 +153,19 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 				     struct phy_c45_device_ids *c45_ids)
 {
 	struct phy_device *dev;
+	struct mdio_device *mdiodev;
 
 	/* We allocate the device, and initialize the default values */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
 
-	dev->dev.release = phy_device_release;
+	mdiodev = &dev->mdio;
+	mdiodev->dev.release = phy_device_release;
+	mdiodev->dev.parent = &bus->dev;
+	mdiodev->dev.bus = &mdio_bus_type;
+	mdiodev->bus = bus;
+	mdiodev->addr = addr;
 
 	dev->speed = 0;
 	dev->duplex = -1;
@@ -171,15 +177,11 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 	dev->autoneg = AUTONEG_ENABLE;
 
 	dev->is_c45 = is_c45;
-	dev->addr = addr;
 	dev->phy_id = phy_id;
 	if (c45_ids)
 		dev->c45_ids = *c45_ids;
-	dev->bus = bus;
-	dev->dev.parent = &bus->dev;
-	dev->dev.bus = &mdio_bus_type;
 	dev->irq = bus->irq ? bus->irq[addr] : PHY_POLL;
-	dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr);
+	dev_set_name(&mdiodev->dev, PHY_ID_FMT, bus->id, addr);
 
 	dev->state = PHY_DOWN;
 
@@ -199,7 +201,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
 	 */
 	request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT, MDIO_ID_ARGS(phy_id));
 
-	device_initialize(&dev->dev);
+	device_initialize(&mdiodev->dev);
 
 	return dev;
 }
@@ -382,27 +384,27 @@ int phy_device_register(struct phy_device *phydev)
 	int err;
 
 	/* Don't register a phy if one is already registered at this address */
-	if (phydev->bus->phy_map[phydev->addr])
+	if (phydev->mdio.bus->phy_map[phydev->mdio.addr])
 		return -EINVAL;
-	phydev->bus->phy_map[phydev->addr] = phydev;
+	phydev->mdio.bus->phy_map[phydev->mdio.addr] = phydev;
 
 	/* Run all of the fixups for this PHY */
 	err = phy_scan_fixups(phydev);
 	if (err) {
-		pr_err("PHY %d failed to initialize\n", phydev->addr);
+		pr_err("PHY %d failed to initialize\n", phydev->mdio.addr);
 		goto out;
 	}
 
-	err = device_add(&phydev->dev);
+	err = device_add(&phydev->mdio.dev);
 	if (err) {
-		pr_err("PHY %d failed to add\n", phydev->addr);
+		pr_err("PHY %d failed to add\n", phydev->mdio.addr);
 		goto out;
 	}
 
 	return 0;
 
  out:
-	phydev->bus->phy_map[phydev->addr] = NULL;
+	phydev->mdio.bus->phy_map[phydev->mdio.addr] = NULL;
 	return err;
 }
 EXPORT_SYMBOL(phy_device_register);
@@ -417,10 +419,10 @@ EXPORT_SYMBOL(phy_device_register);
  */
 void phy_device_remove(struct phy_device *phydev)
 {
-	struct mii_bus *bus = phydev->bus;
-	int addr = phydev->addr;
+	struct mii_bus *bus = phydev->mdio.bus;
+	int addr = phydev->mdio.addr;
 
-	device_del(&phydev->dev);
+	device_del(&phydev->mdio.dev);
 	bus->phy_map[addr] = NULL;
 }
 EXPORT_SYMBOL(phy_device_remove);
@@ -617,13 +619,13 @@ EXPORT_SYMBOL(phy_attached_info);
 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
 {
 	if (!fmt) {
-		dev_info(&phydev->dev, ATTACHED_FMT "\n",
+		dev_info(&phydev->mdio.dev, ATTACHED_FMT "\n",
 			 phydev->drv->name, phydev_name(phydev),
 			 phydev->irq);
 	} else {
 		va_list ap;
 
-		dev_info(&phydev->dev, ATTACHED_FMT,
+		dev_info(&phydev->mdio.dev, ATTACHED_FMT,
 			 phydev->drv->name, phydev_name(phydev),
 			 phydev->irq);
 
@@ -652,8 +654,8 @@ EXPORT_SYMBOL(phy_attached_print);
 int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 		      u32 flags, phy_interface_t interface)
 {
-	struct mii_bus *bus = phydev->bus;
-	struct device *d = &phydev->dev;
+	struct mii_bus *bus = phydev->mdio.bus;
+	struct device *d = &phydev->mdio.dev;
 	int err;
 
 	if (!try_module_get(bus->owner)) {
@@ -771,8 +773,8 @@ void phy_detach(struct phy_device *phydev)
 	 * real driver could be loaded
 	 */
 	for (i = 0; i < ARRAY_SIZE(genphy_driver); i++) {
-		if (phydev->dev.driver == &genphy_driver[i].driver) {
-			device_release_driver(&phydev->dev);
+		if (phydev->mdio.dev.driver == &genphy_driver[i].driver) {
+			device_release_driver(&phydev->mdio.dev);
 			break;
 		}
 	}
@@ -781,16 +783,16 @@ void phy_detach(struct phy_device *phydev)
 	 * The phydev might go away on the put_device() below, so avoid
 	 * a use-after-free bug by reading the underlying bus first.
 	 */
-	bus = phydev->bus;
+	bus = phydev->mdio.bus;
 
-	put_device(&phydev->dev);
+	put_device(&phydev->mdio.dev);
 	module_put(bus->owner);
 }
 EXPORT_SYMBOL(phy_detach);
 
 int phy_suspend(struct phy_device *phydev)
 {
-	struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
+	struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
 	struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
 	int ret = 0;
 
@@ -813,7 +815,7 @@ EXPORT_SYMBOL(phy_suspend);
 
 int phy_resume(struct phy_device *phydev)
 {
-	struct phy_driver *phydrv = to_phy_driver(phydev->dev.driver);
+	struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
 	int ret = 0;
 
 	if (phydrv->resume)
@@ -1330,7 +1332,7 @@ EXPORT_SYMBOL(phy_set_max_speed);
 
 static void of_set_phy_supported(struct phy_device *phydev)
 {
-	struct device_node *node = phydev->dev.of_node;
+	struct device_node *node = phydev->mdio.dev.of_node;
 	u32 max_speed;
 
 	if (!IS_ENABLED(CONFIG_OF_MDIO))
@@ -1354,7 +1356,7 @@ static void of_set_phy_supported(struct phy_device *phydev)
 static int phy_probe(struct device *dev)
 {
 	struct phy_device *phydev = to_phy_device(dev);
-	struct device_driver *drv = phydev->dev.driver;
+	struct device_driver *drv = phydev->mdio.dev.driver;
 	struct phy_driver *phydrv = to_phy_driver(drv);
 	int err = 0;
 
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index dc2da87..18c981b 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -44,7 +44,7 @@ static int smsc_phy_ack_interrupt(struct phy_device *phydev)
 static int smsc_phy_config_init(struct phy_device *phydev)
 {
 	int __maybe_unused len;
-	struct device *dev __maybe_unused = &phydev->dev;
+	struct device *dev __maybe_unused = &phydev->mdio.dev;
 	struct device_node *of_node __maybe_unused = dev->of_node;
 	int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
 	int enable_energy = 1;
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 2f88ff4..bc9d763 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -75,7 +75,7 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi
 	/* Associate the OF node with the device structure so it
 	 * can be looked up later */
 	of_node_get(child);
-	phy->dev.of_node = child;
+	phy->mdio.dev.of_node = child;
 
 	/* All data is now stored in the phy struct;
 	 * register it */
@@ -233,7 +233,7 @@ struct phy_device *of_phy_connect(struct net_device *dev,
 	ret = phy_connect_direct(dev, phy, hndlr, iface);
 
 	/* refcount is held by phy_connect_direct() on success */
-	put_device(&phy->dev);
+	put_device(&phy->mdio.dev);
 
 	return ret ? NULL : phy;
 }
@@ -263,7 +263,7 @@ struct phy_device *of_phy_attach(struct net_device *dev,
 	ret = phy_attach_direct(dev, phy, flags, iface);
 
 	/* refcount is held by phy_attach_direct() on success */
-	put_device(&phy->dev);
+	put_device(&phy->mdio.dev);
 
 	return ret ? NULL : phy;
 }
diff --git a/include/linux/mdio.h b/include/linux/mdio.h
index 0d073c2..94f9f14 100644
--- a/include/linux/mdio.h
+++ b/include/linux/mdio.h
@@ -13,6 +13,15 @@
 
 struct mii_bus;
 
+struct mdio_device {
+	struct device dev;
+
+	struct mii_bus *bus;
+	/* Bus address of the MDIO device (0-31) */
+	int addr;
+};
+#define to_mdio_device(d) container_of(d, struct mdio_device, dev)
+
 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);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index a5473c9..239a0c2 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -358,14 +358,12 @@ struct phy_c45_device_ids {
  * handling, as well as handling shifts in PHY hardware state
  */
 struct phy_device {
+	struct mdio_device mdio;
+
 	/* Information about the PHY type */
 	/* And management functions */
 	struct phy_driver *drv;
 
-	struct mii_bus *bus;
-
-	struct device dev;
-
 	u32 phy_id;
 
 	struct phy_c45_device_ids c45_ids;
@@ -381,9 +379,6 @@ struct phy_device {
 
 	phy_interface_t interface;
 
-	/* Bus address of the PHY (0-31) */
-	int addr;
-
 	/*
 	 * forced speed & duplex (no autoneg)
 	 * partner speed & duplex & pause (autoneg)
@@ -432,7 +427,8 @@ struct phy_device {
 
 	void (*adjust_link)(struct net_device *dev);
 };
-#define to_phy_device(d) container_of(d, struct phy_device, dev)
+#define to_phy_device(d) container_of(to_mdio_device(d), \
+				      struct phy_device, mdio)
 
 /* struct phy_driver: Driver structure for a particular PHY type
  *
@@ -622,7 +618,7 @@ static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
 	if (!phydev->is_c45)
 		return -EOPNOTSUPP;
 
-	return mdiobus_read(phydev->bus, phydev->addr,
+	return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
 			    MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
 }
 
@@ -648,7 +644,7 @@ int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, int devad);
  */
 static inline int phy_read(struct phy_device *phydev, u32 regnum)
 {
-	return mdiobus_read(phydev->bus, phydev->addr, regnum);
+	return mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
 }
 
 /**
@@ -663,7 +659,7 @@ static inline int phy_read(struct phy_device *phydev, u32 regnum)
  */
 static inline int phy_write(struct phy_device *phydev, u32 regnum, u16 val)
 {
-	return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
+	return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
 }
 
 /**
@@ -726,7 +722,7 @@ static inline int phy_write_mmd(struct phy_device *phydev, int devad,
 
 	regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
 
-	return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
+	return mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum, val);
 }
 
 /**
@@ -776,14 +772,14 @@ static inline int phy_read_status(struct phy_device *phydev)
 }
 
 #define phydev_err(_phydev, format, args...)	\
-	dev_err(&_phydev->dev, format, ##args)
+	dev_err(&_phydev->mdio.dev, format, ##args)
 
 #define phydev_dbg(_phydev, format, args...)	\
-	dev_dbg(&_phydev->dev, format, ##args)
+	dev_dbg(&_phydev->mdio.dev, format, ##args);
 
 static inline const char *phydev_name(const struct phy_device *phydev)
 {
-	return dev_name(&phydev->dev);
+	return dev_name(&phydev->mdio.dev);
 }
 
 void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 208d1b2..fa4daba 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -439,7 +439,7 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
 		if (of_phy_is_fixed_link(port_dn)) {
 			phydev = of_phy_find_device(port_dn);
 			if (phydev) {
-				int addr = phydev->addr;
+				int addr = phydev->mdio.addr;
 
 				phy_device_free(phydev);
 				of_node_put(port_dn);
-- 
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