1 // SPDX-License-Identifier: GPL-2.0-only
3  * fwnode helpers for the MDIO (Ethernet PHY) API
14 #include <linux/pse-pd/pse.h>
18 MODULE_DESCRIPTION("FWNODE MDIO bus (Ethernet PHY) accessors");
34 	if (PTR_ERR(psec) == -ENOENT)  in fwnode_find_pse_control()
52 	if (err == -ENOENT)  in fwnode_find_mii_timestamper()
58 		mii_ts = ERR_PTR(-EINVAL);  in fwnode_find_mii_timestamper()
79 	if (rc == -EPROBE_DEFER)  in fwnode_mdiobus_phy_device_register()
80 		rc = driver_deferred_probe_check_state(&phy->mdio.dev);  in fwnode_mdiobus_phy_device_register()
81 	if (rc == -EPROBE_DEFER)  in fwnode_mdiobus_phy_device_register()
85 		phy->irq = rc;  in fwnode_mdiobus_phy_device_register()
86 		mdio->irq[addr] = rc;  in fwnode_mdiobus_phy_device_register()
88 		phy->irq = mdio->irq[addr];  in fwnode_mdiobus_phy_device_register()
91 	if (fwnode_property_read_bool(child, "broken-turn-around"))  in fwnode_mdiobus_phy_device_register()
92 		mdio->phy_ignore_ta_mask |= 1 << addr;  in fwnode_mdiobus_phy_device_register()
94 	fwnode_property_read_u32(child, "reset-assert-us",  in fwnode_mdiobus_phy_device_register()
95 				 &phy->mdio.reset_assert_delay);  in fwnode_mdiobus_phy_device_register()
96 	fwnode_property_read_u32(child, "reset-deassert-us",  in fwnode_mdiobus_phy_device_register()
97 				 &phy->mdio.reset_deassert_delay);  in fwnode_mdiobus_phy_device_register()
103 	device_set_node(&phy->mdio.dev, child);  in fwnode_mdiobus_phy_device_register()
110 		device_set_node(&phy->mdio.dev, NULL);  in fwnode_mdiobus_phy_device_register()
115 	dev_dbg(&mdio->dev, "registered phy fwnode %pfw at address %i\n",  in fwnode_mdiobus_phy_device_register()
141 	is_c45 = fwnode_device_is_compatible(child, "ethernet-phy-ieee802.3-c45");  in fwnode_mdiobus_register_phy()
152 		phy->irq = bus->irq[addr];  in fwnode_mdiobus_register_phy()
157 		phy->mdio.dev.fwnode = fwnode_handle_get(child);  in fwnode_mdiobus_register_phy()
162 			phy->mdio.dev.fwnode = NULL;  in fwnode_mdiobus_register_phy()
172 	phy->psec = psec;  in fwnode_mdiobus_register_phy()
174 	/* phy->mii_ts may already be defined by the PHY driver. A  in fwnode_mdiobus_register_phy()
179 		phy->mii_ts = mii_ts;  in fwnode_mdiobus_register_phy()