1 // SPDX-License-Identifier: GPL-2.0-only
29  * ethernet-phy-idAAAA.BBBB */
37 		if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) == 2) {  in of_get_phy_id()
42 	return -EINVAL;  in of_get_phy_id()
52 	if (err == -ENOENT)  in of_find_mii_timestamper()
58 		return ERR_PTR(-EINVAL);  in of_find_mii_timestamper()
69 	if (rc == -EPROBE_DEFER)  in of_mdiobus_phy_device_register()
73 		phy->irq = rc;  in of_mdiobus_phy_device_register()
74 		mdio->irq[addr] = rc;  in of_mdiobus_phy_device_register()
76 		phy->irq = mdio->irq[addr];  in of_mdiobus_phy_device_register()
79 	if (of_property_read_bool(child, "broken-turn-around"))  in of_mdiobus_phy_device_register()
80 		mdio->phy_ignore_ta_mask |= 1 << addr;  in of_mdiobus_phy_device_register()
82 	of_property_read_u32(child, "reset-assert-us",  in of_mdiobus_phy_device_register()
83 			     &phy->mdio.reset_assert_delay);  in of_mdiobus_phy_device_register()
84 	of_property_read_u32(child, "reset-deassert-us",  in of_mdiobus_phy_device_register()
85 			     &phy->mdio.reset_deassert_delay);  in of_mdiobus_phy_device_register()
90 	phy->mdio.dev.of_node = child;  in of_mdiobus_phy_device_register()
91 	phy->mdio.dev.fwnode = of_fwnode_handle(child);  in of_mdiobus_phy_device_register()
101 	dev_dbg(&mdio->dev, "registered phy %pOFn at address %i\n",  in of_mdiobus_phy_device_register()
121 					 "ethernet-phy-ieee802.3-c45");  in of_mdiobus_register_phy()
141 	/* phy->mii_ts may already be defined by the PHY driver. A  in of_mdiobus_register_phy()
146 		phy->mii_ts = mii_ts;  in of_mdiobus_register_phy()
165 	mdiodev->dev.of_node = child;  in of_mdiobus_register_device()
166 	mdiodev->dev.fwnode = of_fwnode_handle(child);  in of_mdiobus_register_device()
176 	dev_dbg(&mdio->dev, "registered mdio device %pOFn at address %i\n",  in of_mdiobus_register_device()
188 	{ .compatible = "brcm,40nm-ephy" },
198 	{ .compatible = "moxa,moxart-rtl8201cp", },
204  * o Compatible string of "ethernet-phy-idX.X"
205  * o Compatible string of "ethernet-phy-ieee802.3-c45"
206  * o Compatible string of "ethernet-phy-ieee802.3-c22"
217 	if (of_get_phy_id(child, &phy_id) != -EINVAL)  in of_mdiobus_child_is_phy()
220 	if (of_device_is_compatible(child, "ethernet-phy-ieee802.3-c45"))  in of_mdiobus_child_is_phy()
223 	if (of_device_is_compatible(child, "ethernet-phy-ieee802.3-c22"))  in of_mdiobus_child_is_phy()
241  * of_mdiobus_register - Register mii_bus and create PHYs from the device tree
259 		return -ENODEV;  in of_mdiobus_register()
263 	mdio->phy_mask = ~0;  in of_mdiobus_register()
265 	mdio->dev.of_node = np;  in of_mdiobus_register()
266 	mdio->dev.fwnode = of_fwnode_handle(np);  in of_mdiobus_register()
269 	mdio->reset_delay_us = DEFAULT_GPIO_RESET_DELAY;  in of_mdiobus_register()
270 	of_property_read_u32(np, "reset-delay-us", &mdio->reset_delay_us);  in of_mdiobus_register()
271 	mdio->reset_post_delay_us = 0;  in of_mdiobus_register()
272 	of_property_read_u32(np, "reset-post-delay-us", &mdio->reset_post_delay_us);  in of_mdiobus_register()
281 		addr = of_mdio_parse_addr(&mdio->dev, child);  in of_mdiobus_register()
292 		if (rc == -ENODEV)  in of_mdiobus_register()
293 			dev_err(&mdio->dev,  in of_mdiobus_register()
315 			dev_info(&mdio->dev, "scan phy %pOFn at address %i\n",  in of_mdiobus_register()
319 				/* -ENODEV is the return code that PHYLIB has  in of_mdiobus_register()
326 				if (rc != -ENODEV)  in of_mdiobus_register()
341  * of_mdio_find_device - Given a device tree node, find the mdio_device
364  * of_phy_find_device - Give a PHY node, find the phy_device
378 	if (mdiodev->flags & MDIO_DEVICE_FLAG_PHY)  in of_phy_find_device()
379 		return to_phy_device(&mdiodev->dev);  in of_phy_find_device()
381 	put_device(&mdiodev->dev);  in of_phy_find_device()
388  * of_phy_connect - Connect to the phy described in the device tree
410 	phy->dev_flags |= flags;  in of_phy_connect()
415 	put_device(&phy->mdio.dev);  in of_phy_connect()
423  * - Get phy node and connect to the phy described in the device tree
447 			netdev_err(dev, "broken fixed-link specification\n");  in of_phy_get_and_connect()
452 		phy_np = of_parse_phandle(np, "phy-handle", 0);  in of_phy_get_and_connect()
466  * of_phy_attach - Attach to a PHY without starting the state machine
489 	put_device(&phy->mdio.dev);  in of_phy_attach()
498  * - the old DT binding, where 'fixed-link' was a property with 5
500  * - the new DT binding, where 'fixed-link' is a sub-node of the
510 	dn = of_get_child_by_name(np, "fixed-link");  in of_phy_is_fixed_link()
521 	if (of_get_property(np, "fixed-link", &len) &&  in of_phy_is_fixed_link()
537 	    strcmp(managed, "in-band-status") == 0) {  in of_phy_register_fixed_link()
543 	fixed_link_node = of_get_child_by_name(np, "fixed-link");  in of_phy_register_fixed_link()
547 						      "full-duplex");  in of_phy_register_fixed_link()
551 			return -EINVAL;  in of_phy_register_fixed_link()
553 		status.pause = of_property_read_bool(fixed_link_node, "pause");  in of_phy_register_fixed_link()
555 							  "asym-pause");  in of_phy_register_fixed_link()
562 	if (of_property_read_u32_array(np, "fixed-link", fixed_link_prop,  in of_phy_register_fixed_link()
567 		status.pause  = fixed_link_prop[3];  in of_phy_register_fixed_link()
572 	return -ENODEV;  in of_phy_register_fixed_link()
589 	put_device(&phydev->mdio.dev);	/* of_phy_find_device() */  in of_phy_deregister_fixed_link()