PHY_DOWN
if (phydev->link != PHY_DOWN) {
if (priv->link == PHY_DOWN) {
priv->link = PHY_DOWN;
case PHY_DOWN:
if (!phy_is_started(phydev) && phydev->state != PHY_DOWN &&
phydev->state = PHY_DOWN;
dev->state = PHY_DOWN;