diff options
| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2014-08-26 09:26:52 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-27 16:29:39 -0700 |
| commit | 7a4cecf74c165653b2d01301b301a8659438217e (patch) | |
| tree | 26b0aa3fd7c4b63a98fcf830bcfba5a49c7ac20a | |
| parent | 2d39d120781a5770573dc6ed672a5a562f541aea (diff) | |
phy: fix EEE checks inside the phy_init_eee.
According to the Std 802.3az if the EEE Adv (Reg 7.60), Link partner ability
(Reg 7.61) and EEE capability (Register 3.20) bits return 0 this means no EEE
is supported. So this patch fixes the checks inside the phy_init_eee function.
Signed-off-by: Nandini Sharma <nandini.sharma@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/phy/phy.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index c94e2a27446..a854d38c231 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1036,31 +1036,31 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable) /* First check if the EEE ability is supported */ eee_cap = phy_read_mmd_indirect(phydev, MDIO_PCS_EEE_ABLE, MDIO_MMD_PCS, phydev->addr); - if (eee_cap < 0) - return eee_cap; + if (eee_cap <= 0) + goto eee_exit_err; cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap); if (!cap) - return -EPROTONOSUPPORT; + goto eee_exit_err; /* Check which link settings negotiated and verify it in * the EEE advertising registers. */ eee_lp = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_LPABLE, MDIO_MMD_AN, phydev->addr); - if (eee_lp < 0) - return eee_lp; + if (eee_lp <= 0) + goto eee_exit_err; eee_adv = phy_read_mmd_indirect(phydev, MDIO_AN_EEE_ADV, MDIO_MMD_AN, phydev->addr); - if (eee_adv < 0) - return eee_adv; + if (eee_adv <= 0) + goto eee_exit_err; adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv); lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp); idx = phy_find_setting(phydev->speed, phydev->duplex); if (!(lp & adv & settings[idx].setting)) - return -EPROTONOSUPPORT; + goto eee_exit_err; if (clk_stop_enable) { /* Configure the PHY to stop receiving xMII @@ -1080,7 +1080,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable) return 0; /* EEE supported */ } - +eee_exit_err: return -EPROTONOSUPPORT; } EXPORT_SYMBOL(phy_init_eee); |