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net: phy: introduce genphy_c45_pma_baset1_setup_master_slave()

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Move baset1 specific part of genphy_c45_pma_setup_forced() code to
separate function to make it reusable by PHY drivers.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Oleksij Rempel 2022-05-06 06:23:52 +02:00 committed by David S. Miller
parent a7f0e4bea8
commit 90532850eb
2 changed files with 31 additions and 19 deletions
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49
drivers/net/phy/phy-c45.c
View file

@ -70,6 +70,35 @@ int genphy_c45_pma_suspend(struct phy_device *phydev)
}
EXPORT_SYMBOL_GPL(genphy_c45_pma_suspend);
/**
* genphy_c45_pma_baset1_setup_master_slave - configures forced master/slave
* role of BaseT1 devices.
* @phydev: target phy_device struct
*/
int genphy_c45_pma_baset1_setup_master_slave(struct phy_device *phydev)
{
int ctl = 0;
switch (phydev->master_slave_set) {
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
case MASTER_SLAVE_CFG_MASTER_FORCE:
ctl = MDIO_PMA_PMD_BT1_CTRL_CFG_MST;
break;
case MASTER_SLAVE_CFG_SLAVE_FORCE:
case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
case MASTER_SLAVE_CFG_UNKNOWN:
case MASTER_SLAVE_CFG_UNSUPPORTED:
break;
default:
phydev_warn(phydev, "Unsupported Master/Slave mode\n");
return -EOPNOTSUPP;
}
return phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL,
MDIO_PMA_PMD_BT1_CTRL_CFG_MST, ctl);
}
EXPORT_SYMBOL_GPL(genphy_c45_pma_baset1_setup_master_slave);
/**
* genphy_c45_pma_setup_forced - configures a forced speed
* @phydev: target phy_device struct
@ -141,25 +170,7 @@ int genphy_c45_pma_setup_forced(struct phy_device *phydev)
return ret;
if (genphy_c45_baset1_able(phydev)) {
int ctl = 0;
switch (phydev->master_slave_set) {
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
case MASTER_SLAVE_CFG_MASTER_FORCE:
ctl = MDIO_PMA_PMD_BT1_CTRL_CFG_MST;
break;
case MASTER_SLAVE_CFG_SLAVE_FORCE:
case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
case MASTER_SLAVE_CFG_UNKNOWN:
case MASTER_SLAVE_CFG_UNSUPPORTED:
break;
default:
phydev_warn(phydev, "Unsupported Master/Slave mode\n");
return -EOPNOTSUPP;
}
ret = phy_modify_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL,
MDIO_PMA_PMD_BT1_CTRL_CFG_MST, ctl);
ret = genphy_c45_pma_baset1_setup_master_slave(phydev);
if (ret < 0)
return ret;
}

1
include/linux/phy.h
View file

@ -1614,6 +1614,7 @@ int genphy_c45_read_link(struct phy_device *phydev);
int genphy_c45_read_lpa(struct phy_device *phydev);
int genphy_c45_read_pma(struct phy_device *phydev);
int genphy_c45_pma_setup_forced(struct phy_device *phydev);
int genphy_c45_pma_baset1_setup_master_slave(struct phy_device *phydev);
int genphy_c45_an_config_aneg(struct phy_device *phydev);
int genphy_c45_an_disable_aneg(struct phy_device *phydev);
int genphy_c45_read_mdix(struct phy_device *phydev);