treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / net / dsa / mv88e6xxx / phy.h
blob05ea0d5469698fd6e4c80fab795ff1dc34fd0da9
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Marvell 88E6xxx PHY access
5 * Copyright (c) 2008 Marvell Semiconductor
7 * Copyright (c) 2017 Andrew Lunn <andrew@lunn.ch>
8 */
10 #ifndef _MV88E6XXX_PHY_H
11 #define _MV88E6XXX_PHY_H
13 #define MV88E6XXX_PHY_PAGE 0x16
14 #define MV88E6XXX_PHY_PAGE_COPPER 0x00
16 /* PHY Registers accesses implementations */
17 int mv88e6165_phy_read(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
18 int addr, int reg, u16 *val);
19 int mv88e6165_phy_write(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
20 int addr, int reg, u16 val);
21 int mv88e6185_phy_ppu_read(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
22 int addr, int reg, u16 *val);
23 int mv88e6185_phy_ppu_write(struct mv88e6xxx_chip *chip, struct mii_bus *bus,
24 int addr, int reg, u16 val);
26 /* Generic PHY operations */
27 int mv88e6xxx_phy_read(struct mv88e6xxx_chip *chip, int phy,
28 int reg, u16 *val);
29 int mv88e6xxx_phy_write(struct mv88e6xxx_chip *chip, int phy,
30 int reg, u16 val);
31 int mv88e6xxx_phy_page_read(struct mv88e6xxx_chip *chip, int phy,
32 u8 page, int reg, u16 *val);
33 int mv88e6xxx_phy_page_write(struct mv88e6xxx_chip *chip, int phy,
34 u8 page, int reg, u16 val);
35 void mv88e6xxx_phy_init(struct mv88e6xxx_chip *chip);
36 void mv88e6xxx_phy_destroy(struct mv88e6xxx_chip *chip);
37 int mv88e6xxx_phy_setup(struct mv88e6xxx_chip *chip);
39 #endif /*_MV88E6XXX_PHY_H */