Add phy_set/clear_bit helper routines so that ported drivers from the kernel can use these functions.
Acked-by: Michal Simek michal.simek@xilinx.com Signed-off-by: Dan Murphy dmurphy@ti.com --- include/phy.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+)
diff --git a/include/phy.h b/include/phy.h index 34c2af719b67..fedd14609192 100644 --- a/include/phy.h +++ b/include/phy.h @@ -296,6 +296,60 @@ static inline int phy_write_mmd(struct phy_device *phydev, int devad, return phy_write(phydev, MDIO_DEVAD_NONE, MII_MMD_DATA, val); }
+/** + * phy_set_bits_mmd - Convenience function for setting bits in a register + * on MMD + * @phydev: the phy_device struct + * @devad: the MMD containing register to modify + * @regnum: register number to modify + * @val: bits to set + * @return: 0 for success or negative errno for failure + */ +static inline int phy_set_bits_mmd(struct phy_device *phydev, int devad, + u32 regnum, u16 val) +{ + int value, ret; + + value = phy_read_mmd(phydev, devad, regnum); + if (value < 0) + return value; + + value |= val; + + ret = phy_write_mmd(phydev, devad, regnum, value); + if (ret < 0) + return ret; + + return 0; +} + +/** + * phy_clear_bits_mmd - Convenience function for clearing bits in a register + * on MMD + * @phydev: the phy_device struct + * @devad: the MMD containing register to modify + * @regnum: register number to modify + * @val: bits to clear + * @return: 0 for success or negative errno for failure + */ +static inline int phy_clear_bits_mmd(struct phy_device *phydev, int devad, + u32 regnum, u16 val) +{ + int value, ret; + + value = phy_read_mmd(phydev, devad, regnum); + if (value < 0) + return value; + + value &= ~val; + + ret = phy_write_mmd(phydev, devad, regnum, value); + if (ret < 0) + return ret; + + return 0; +} + #ifdef CONFIG_PHYLIB_10G extern struct phy_driver gen10g_driver;