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net: phy: Add helper routines to set and clear bits

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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>
This commit is contained in:
Dan Murphy 2020-05-04 16:14:38 -05:00 committed by Tom Rini
parent ea756fb8b7
commit 535247a9e4
1 changed files with 54 additions and 0 deletions
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54
include/phy.h
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@ -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;