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Commit 9df54dda authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: phy: bcm7xxx: enable auto power down 



The 28nm process BCM7xxx internal Gigabit PHYs all support automatic
power down, turn on that feature as part of the configuration
initialization callback.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 70531479

drivers/net/phy/bcm7xxx.c

+26 −1
Original line number Diff line number Diff line
@@ -146,6 +146,27 @@ static int bcm7xxx_28nm_afe_config_init(struct phy_device *phydev) 
	return 0;

}



static int bcm7xxx_apd_enable(struct phy_device *phydev)

{

	int val;



	/* Enable powering down of the DLL during auto-power down */

	val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_SCR3);

	if (val < 0)

		return val;



	val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;

	bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val);



	/* Enable auto-power down */

	val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_APD);

	if (val < 0)

		return val;



	val |= BCM54XX_SHD_APD_EN;

	return bcm54xx_shadow_write(phydev, BCM54XX_SHD_APD, val);

}



static int bcm7xxx_28nm_config_init(struct phy_device *phydev)

{

	int ret;
@@ -154,7 +175,11 @@ static int bcm7xxx_28nm_config_init(struct phy_device *phydev) 
	if (ret)

		return ret;



	return bcm7xxx_28nm_afe_config_init(phydev);

	ret = bcm7xxx_28nm_afe_config_init(phydev);

	if (ret)

		return ret;



	return bcm7xxx_apd_enable(phydev);

}



static int bcm7xxx_28nm_resume(struct phy_device *phydev)