MASTER_SLAVE_CFG_MASTER_PREFERRED
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
phydev->master_slave_set == MASTER_SLAVE_CFG_MASTER_PREFERRED){
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_PREFERRED;
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
phydev->master_slave_set = MASTER_SLAVE_CFG_MASTER_PREFERRED;
case MASTER_SLAVE_CFG_MASTER_PREFERRED:
cfg = MASTER_SLAVE_CFG_MASTER_PREFERRED;
(phydev->master_slave_get == MASTER_SLAVE_CFG_MASTER_PREFERRED);
case MASTER_SLAVE_CFG_MASTER_PREFERRED: