static ssize_t async_show(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	return sysfs_emit(buf, "%s\n",
			  device_async_suspend_enabled(dev) ?
			  _enabled : _disabled);
}
static ssize_t async_show(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	return sysfs_emit(buf, "%s\n",
			  device_async_suspend_enabled(dev) ?
			  _enabled : _disabled);
}