diff options
| author | Russell King <rmk+kernel@armlinux.org.uk> | 2020-02-04 15:47:27 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2020-04-02 19:45:31 +0100 |
| commit | 5b76cc424b1afe23271a6320382731eeaad7bd46 (patch) | |
| tree | 3162b6d1c1504b22245da979a12f25f210554b50 /drivers/net/phy/phy-core.c | |
| parent | 9bda56257c0f6a0933414fbd336c964ed070e4e3 (diff) | |
net: mdiobus: add APIs for modifying a MDIO device register
Add APIs for modifying a MDIO device register, similar to the existing
phy_modify() group of functions, but at mdiobus level instead. Adapt
__phy_modify_changed() to use the new mdiobus level helper.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'drivers/net/phy/phy-core.c')
| -rw-r--r-- | drivers/net/phy/phy-core.c | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c index a4d2d59fceca..a2d5220ed6e4 100644 --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -489,37 +489,6 @@ int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val) EXPORT_SYMBOL(phy_write_mmd); /** - * __phy_modify_changed() - Convenience function for modifying a PHY register - * @phydev: a pointer to a &struct phy_device - * @regnum: register number - * @mask: bit mask of bits to clear - * @set: bit mask of bits to set - * - * Unlocked helper function which allows a PHY register to be modified as - * new register value = (old register value & ~mask) | set - * - * Returns negative errno, 0 if there was no change, and 1 in case of change - */ -int __phy_modify_changed(struct phy_device *phydev, u32 regnum, u16 mask, - u16 set) -{ - int new, ret; - - ret = __phy_read(phydev, regnum); - if (ret < 0) - return ret; - - new = (ret & ~mask) | set; - if (new == ret) - return 0; - - ret = __phy_write(phydev, regnum, new); - - return ret < 0 ? ret : 1; -} -EXPORT_SYMBOL_GPL(__phy_modify_changed); - -/** * phy_modify_changed - Function for modifying a PHY register * @phydev: the phy_device struct * @regnum: register number to modify |