phy: allow drivers to flag a PHY device as internal

libphy currently always reports a PHY as an external transceiver from
the ethtool output. This is inaccurate, because some drivers should be
able to tell that a PHY device is an internal transceiver of an Ethernet
MAC. Add a new flag (PHY_IS_INTERNAL) which can be set by PHY drivers
just like other flags, and a corresponding helper: phy_is_internal()
which can be used by networking drivers to query if a given
PHY device is internal.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 1 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 2d28a0ef4572..b2a94e436ed8 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -294,7 +294,8 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd)
         cmd->duplex = phydev->duplex;
         cmd->port = PORT_MII;
         cmd->phy_address = phydev->addr;
-        cmd->transceiver = XCVR_EXTERNAL;
+        cmd->transceiver = phy_is_internal(phydev) ?
+                XCVR_INTERNAL : XCVR_EXTERNAL;
         cmd->autoneg = phydev->autoneg;
 
         return 0;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index b55aa33a5b8b..74630e94fa3b 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1017,6 +1017,9 @@ static int phy_probe(struct device *dev)
                         phy_interrupt_is_valid(phydev))
                 phydev->irq = PHY_POLL;
 
+        if (phydrv->flags & PHY_IS_INTERNAL)
+                phydev->is_internal = true;
+
         mutex_lock(&phydev->lock);
 
         /* Start out supporting everything. Eventually,