static int mdio_bus_suspend(struct device * dev, u32 state)
static int mdio_bus_suspend(struct device * dev, pm_message_t state)
static int mdio_bus_suspend(struct device * dev, u32 state){	int ret = 0;	struct device_driver *drv = dev->driver;	if (drv && drv->suspend) {		ret = drv->suspend(dev, state, SUSPEND_DISABLE);		if (ret == 0)			ret = drv->suspend(dev, state, SUSPEND_SAVE_STATE);		if (ret == 0)			ret = drv->suspend(dev, state, SUSPEND_POWER_DOWN);	}	return ret;}