AT803X_SMART_SPEED
context->smart_speed = phy_read(phydev, AT803X_SMART_SPEED);
phy_write(phydev, AT803X_SMART_SPEED, context->smart_speed);
val = phy_read(phydev, AT803X_SMART_SPEED);
ret = phy_modify_changed(phydev, AT803X_SMART_SPEED, mask, set);