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net: phy: marvell: use phy_modify_changed() for marvell_set_polarity()

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Rather than open-coding the phy_modify_changed() sequence, use this
helper in marvell_set_polarity().

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Marek Behún <kabel@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Russell King 2021-06-03 14:01:10 +01:00 committed by David S. Miller
parent e5118f5723
commit feb938fad6
1 changed files with 6 additions and 21 deletions
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27
drivers/net/phy/marvell.c
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@ -367,39 +367,24 @@ static irqreturn_t marvell_handle_interrupt(struct phy_device *phydev)
static int marvell_set_polarity(struct phy_device *phydev, int polarity)
{
int reg;
int err;
int val;
u16 val;
/* get the current settings */
reg = phy_read(phydev, MII_M1011_PHY_SCR);
if (reg < 0)
return reg;
val = reg;
val &= ~MII_M1011_PHY_SCR_AUTO_CROSS;
switch (polarity) {
case ETH_TP_MDI:
val |= MII_M1011_PHY_SCR_MDI;
val = MII_M1011_PHY_SCR_MDI;
break;
case ETH_TP_MDI_X:
val |= MII_M1011_PHY_SCR_MDI_X;
val = MII_M1011_PHY_SCR_MDI_X;
break;
case ETH_TP_MDI_AUTO:
case ETH_TP_MDI_INVALID:
default:
val |= MII_M1011_PHY_SCR_AUTO_CROSS;
val = MII_M1011_PHY_SCR_AUTO_CROSS;
break;
}
if (val != reg) {
/* Set the new polarity value in the register */
err = phy_write(phydev, MII_M1011_PHY_SCR, val);
if (err)
return err;
}
return val != reg;
return phy_modify_changed(phydev, MII_M1011_PHY_SCR,
MII_M1011_PHY_SCR_AUTO_CROSS, val);
}
static int marvell_config_aneg(struct phy_device *phydev)