Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdim...

[karo-tx-linux.git] / drivers / net / phy / smsc.c

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 70b08958763a129fff47ad00a1db130c1334f254..dc2da87709185870f808ef626e8446893c658db6 100644 (file)
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -43,16 +43,25 @@ static int smsc_phy_ack_interrupt(struct phy_device *phydev)
 
 static int smsc_phy_config_init(struct phy_device *phydev)
 {
+       int __maybe_unused len;
+       struct device *dev __maybe_unused = &phydev->dev;
+       struct device_node *of_node __maybe_unused = dev->of_node;
        int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
+       int enable_energy = 1;
 
        if (rc < 0)
                return rc;
 
-       /* Enable energy detect mode for this SMSC Transceivers */
-       rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
-                      rc | MII_LAN83C185_EDPWRDOWN);
-       if (rc < 0)
-               return rc;
+       if (of_find_property(of_node, "smsc,disable-energy-detect", &len))
+               enable_energy = 0;
+
+       if (enable_energy) {
+               /* Enable energy detect mode for this SMSC Transceivers */
+               rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
+                              rc | MII_LAN83C185_EDPWRDOWN);
+               if (rc < 0)
+                       return rc;
+       }
 
        return smsc_phy_ack_interrupt(phydev);
 }