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Merge branch 'phy-add-helpers-for-setting-clearing-bits-in-PHY-registers'

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Heiner Kallweit says:

====================
phy: add helpers for setting/clearing bits in PHY registers

Based on the recent introduction of phy_modify add helpers for setting
and clearing bits in PHY registers. First user is phylib.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-01-16 12:25:11 -05:00
commit ccc27fcb8b
2 changed files with 51 additions and 2 deletions
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4
drivers/net/phy/phy_device.c
View File

@ -1660,13 +1660,13 @@ EXPORT_SYMBOL(genphy_config_init);
int genphy_suspend(struct phy_device *phydev)
{
return phy_modify(phydev, MII_BMCR, 0, BMCR_PDOWN);
return phy_set_bits(phydev, MII_BMCR, BMCR_PDOWN);
}
EXPORT_SYMBOL(genphy_suspend);
int genphy_resume(struct phy_device *phydev)
{
return phy_modify(phydev, MII_BMCR, BMCR_PDOWN, 0);
return phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN);
}
EXPORT_SYMBOL(genphy_resume);

49
include/linux/phy.h
View File

@ -764,6 +764,55 @@ static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
int __phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
int phy_modify(struct phy_device *phydev, u32 regnum, u16 mask, u16 set);
/**
* __phy_set_bits - Convenience function for setting bits in a PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: bits to set
*
* The caller must have taken the MDIO bus lock.
*/
static inline int __phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
{
return __phy_modify(phydev, regnum, 0, val);
}
/**
* __phy_clear_bits - Convenience function for clearing bits in a PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: bits to clear
*
* The caller must have taken the MDIO bus lock.
*/
static inline int __phy_clear_bits(struct phy_device *phydev, u32 regnum,
u16 val)
{
return __phy_modify(phydev, regnum, val, 0);
}
/**
* phy_set_bits - Convenience function for setting bits in a PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: bits to set
*/
static inline int phy_set_bits(struct phy_device *phydev, u32 regnum, u16 val)
{
return phy_modify(phydev, regnum, 0, val);
}
/**
* phy_clear_bits - Convenience function for clearing bits in a PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
* @val: bits to clear
*/
static inline int phy_clear_bits(struct phy_device *phydev, u32 regnum, u16 val)
{
return phy_modify(phydev, regnum, val, 0);
}
/**
* phy_interrupt_is_valid - Convenience function for testing a given PHY irq
* @phydev: the phy_device struct