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| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2016-09-02 14:45:34 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-09-06 12:58:14 -0700 |
| commit | ca070c1097eb647e87619af5037d8a8a53a3248b (patch) | |
| tree | 5898c37778b7d7075c9c84d194d9b30478d4ce3c /drivers/net/dsa/mv88e6xxx/global2.h | |
| parent | ec5612761c47ec7ab91b61df1bbcfd65cb0dbec8 (diff) | |
| download | linux-stable-ca070c1097eb647e87619af5037d8a8a53a3248b.tar.gz linux-stable-ca070c1097eb647e87619af5037d8a8a53a3248b.tar.bz2 linux-stable-ca070c1097eb647e87619af5037d8a8a53a3248b.zip | |
net: dsa: mv88e6xxx: make global2 code optional
Since not every chip has a Global2 set of registers, make its support
optional, in which case the related functions will return -EOPNOTSUPP.
This also allows to reduce the size of the mv88e6xxx driver for devices
such as home routers embedding Ethernet chips without Global2 support.
It is present on most recent chips, thus enable its support by default.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/global2.h')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/global2.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h index bee1bc98fd97..c4bb9035ee3a 100644 --- a/drivers/net/dsa/mv88e6xxx/global2.h +++ b/drivers/net/dsa/mv88e6xxx/global2.h @@ -16,6 +16,13 @@ #include "mv88e6xxx.h" +#ifdef CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 + +static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip) +{ + return 0; +} + int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip, int addr, int reg, u16 *val); int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, int addr, int reg, @@ -27,4 +34,55 @@ int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip, struct ethtool_eeprom *eeprom, u8 *data); int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip); +#else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */ + +static inline int mv88e6xxx_g2_require(struct mv88e6xxx_chip *chip) +{ + if (mv88e6xxx_has(chip, MV88E6XXX_FLAG_GLOBAL2)) { + dev_err(chip->dev, "this chip requires CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 enabled\n"); + return -EOPNOTSUPP; + } + + return 0; +} + +static inline int mv88e6xxx_g2_smi_phy_read(struct mv88e6xxx_chip *chip, + int addr, int reg, u16 *val) +{ + return -EOPNOTSUPP; +} + +static inline int mv88e6xxx_g2_smi_phy_write(struct mv88e6xxx_chip *chip, + int addr, int reg, u16 val) +{ + return -EOPNOTSUPP; +} + +static inline int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, + u8 *addr) +{ + return -EOPNOTSUPP; +} + +static inline int mv88e6xxx_g2_get_eeprom16(struct mv88e6xxx_chip *chip, + struct ethtool_eeprom *eeprom, + u8 *data) +{ + return -EOPNOTSUPP; +} + +static inline int mv88e6xxx_g2_set_eeprom16(struct mv88e6xxx_chip *chip, + struct ethtool_eeprom *eeprom, + u8 *data) +{ + return -EOPNOTSUPP; +} + +static inline int mv88e6xxx_g2_setup(struct mv88e6xxx_chip *chip) +{ + return -EOPNOTSUPP; +} + +#endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */ + #endif /* _MV88E6XXX_GLOBAL2_H */ |