diff options
author | Lennert Buytenhek <buytenh@wantstofly.org> | 2008-09-29 17:12:35 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-10-08 23:38:41 (GMT) |
commit | 2e888103295f47b8fcbf7e9bb8c5da97dd2ecd76 (patch) | |
tree | 210943ed285496352078124fd2a43443b1e5b265 /drivers/net/phy | |
parent | 46abc02175b3c246dd5141d878f565a8725060c9 (diff) | |
download | linux-fsl-qoriq-2e888103295f47b8fcbf7e9bb8c5da97dd2ecd76.tar.xz |
phylib: add mdiobus_{read,write}
Add mdiobus_{read,write} routines to allow direct reading/writing
of registers on an mii bus without having to go through the PHY
abstraction, and make phy_{read,write} use these primitives.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy')
-rw-r--r-- | drivers/net/phy/mdio_bus.c | 49 | ||||
-rw-r--r-- | drivers/net/phy/phy.c | 49 |
2 files changed, 49 insertions, 49 deletions
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index fb4c096..6671e2d 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -211,6 +211,55 @@ struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr) EXPORT_SYMBOL(mdiobus_scan); /** + * mdiobus_read - Convenience function for reading a given MII mgmt register + * @bus: the mii_bus struct + * @addr: the phy address + * @regnum: register number to read + * + * NOTE: MUST NOT be called from interrupt context, + * because the bus read/write functions may wait for an interrupt + * to conclude the operation. + */ +int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum) +{ + int retval; + + BUG_ON(in_interrupt()); + + mutex_lock(&bus->mdio_lock); + retval = bus->read(bus, addr, regnum); + mutex_unlock(&bus->mdio_lock); + + return retval; +} +EXPORT_SYMBOL(mdiobus_read); + +/** + * mdiobus_write - Convenience function for writing a given MII mgmt register + * @bus: the mii_bus struct + * @addr: the phy address + * @regnum: register number to write + * @val: value to write to @regnum + * + * NOTE: MUST NOT be called from interrupt context, + * because the bus read/write functions may wait for an interrupt + * to conclude the operation. + */ +int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val) +{ + int err; + + BUG_ON(in_interrupt()); + + mutex_lock(&bus->mdio_lock); + err = bus->write(bus, addr, regnum, val); + mutex_unlock(&bus->mdio_lock); + + return err; +} +EXPORT_SYMBOL(mdiobus_write); + +/** * mdio_bus_match - determine if given PHY driver supports the given PHY device * @dev: target PHY device * @drv: given PHY driver diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 20cc82c..df4e625 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -58,55 +58,6 @@ EXPORT_SYMBOL(phy_print_status); /** - * phy_read - Convenience function for reading a given PHY register - * @phydev: the phy_device struct - * @regnum: register number to read - * - * NOTE: MUST NOT be called from interrupt context, - * because the bus read/write functions may wait for an interrupt - * to conclude the operation. - */ -int phy_read(struct phy_device *phydev, u16 regnum) -{ - int retval; - struct mii_bus *bus = phydev->bus; - - BUG_ON(in_interrupt()); - - mutex_lock(&bus->mdio_lock); - retval = bus->read(bus, phydev->addr, regnum); - mutex_unlock(&bus->mdio_lock); - - return retval; -} -EXPORT_SYMBOL(phy_read); - -/** - * phy_write - Convenience function for writing a given PHY register - * @phydev: the phy_device struct - * @regnum: register number to write - * @val: value to write to @regnum - * - * NOTE: MUST NOT be called from interrupt context, - * because the bus read/write functions may wait for an interrupt - * to conclude the operation. - */ -int phy_write(struct phy_device *phydev, u16 regnum, u16 val) -{ - int err; - struct mii_bus *bus = phydev->bus; - - BUG_ON(in_interrupt()); - - mutex_lock(&bus->mdio_lock); - err = bus->write(bus, phydev->addr, regnum, val); - mutex_unlock(&bus->mdio_lock); - - return err; -} -EXPORT_SYMBOL(phy_write); - -/** * phy_clear_interrupt - Ack the phy device's interrupt * @phydev: the phy_device struct * |