[PATCH] gianfar: Add gfar_change_carrier()

[Joakim Tjernlund]

This allows to control carrier from /sys/class/net/ethX/carrier

Signed-off-by: Joakim Tjernlund <joakim.tjernl...@infinera.com>
---
 drivers/net/ethernet/freescale/gianfar.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/freescale/gianfar.c 
b/drivers/net/ethernet/freescale/gianfar.c
index 63daae120b2d..bdf9c226f8ef 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -492,6 +492,16 @@ static int gfar_set_mac_addr(struct net_device *dev, void 
*p)
        return 0;
 }
 
+static int gfar_change_carrier(struct net_device *dev, bool new_carrier)
+{
+       struct phy_device *phydev = dev->phydev;
+
+       if (phydev && phydev->phy_link_change)
+               phydev->phy_link_change(phydev, new_carrier, 1);
+
+       return 0;
+}
+
 static const struct net_device_ops gfar_netdev_ops = {
        .ndo_open = gfar_enet_open,
        .ndo_start_xmit = gfar_start_xmit,
@@ -502,6 +512,7 @@ static const struct net_device_ops gfar_netdev_ops = {
        .ndo_tx_timeout = gfar_timeout,
        .ndo_do_ioctl = gfar_ioctl,
        .ndo_get_stats = gfar_get_stats,
+       .ndo_change_carrier = gfar_change_carrier,
        .ndo_set_mac_address = gfar_set_mac_addr,
        .ndo_validate_addr = eth_validate_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
-- 
2.18.1