netdev - [PATCH] ucc_geth: Add ucc_geth_change

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Date:   Thu,  6 Dec 2018 16:33:25 +0100
From:   Joakim Tjernlund <joakim.tjernlund@...inera.com>
To:     "netdev @ vger . kernel . org" <netdev@...r.kernel.org>,
        Li Yang <leoyang.li@....com>
Cc:     Joakim Tjernlund <joakim.tjernlund@...inera.com>
Subject: [PATCH] ucc_geth: Add ucc_geth_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/ucc_geth.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index e8debbde0a34..2f4c2f550be6 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3680,11 +3680,22 @@ static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 	return phy_mii_ioctl(ugeth->phydev, rq, cmd);
 }
 
+static int ucc_geth_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 ucc_geth_netdev_ops = {
 	.ndo_open		= ucc_geth_open,
 	.ndo_stop		= ucc_geth_close,
 	.ndo_start_xmit		= ucc_geth_start_xmit,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_change_carrier     = ucc_geth_change_carrier,
 	.ndo_set_mac_address	= ucc_geth_set_mac_addr,
 	.ndo_set_rx_mode	= ucc_geth_set_multi,
 	.ndo_tx_timeout		= ucc_geth_timeout,
-- 
2.18.1