netdev - [PATCH] gianfar: Add gfar_change

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Date:   Thu,  6 Dec 2018 16:31:25 +0100
From:   Joakim Tjernlund <joakim.tjernlund@...inera.com>
To:     "netdev @ vger . kernel . org" <netdev@...r.kernel.org>,
        Claudiu Manoil <claudiu.manoil@...escale.com>
Cc:     Joakim Tjernlund <joakim.tjernlund@...inera.com>
Subject: [PATCH] gianfar: Add gfar_change_carrier()

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

Signed-off-by: Joakim Tjernlund <joakim.tjernlund@...inera.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