static void rtc_sysfs_remove_device(struct class_device *class_dev,
struct class_interface *class_intf)
{
if (rtc_does_wakealarm(class_dev))
class_device_remove_file(class_dev,
&class_device_attr_wakealarm);
#ifdef CONFIG_RTC_WAKERS
if (rtc_does_wakealarm(class_dev))
wakers_unregister(class_dev);
#endif
sysfs_remove_group(&class_dev->kobj, &rtc_attr_group);
}
static int rtc_sysfs_add_device(struct class_device *class_dev,
struct class_interface *class_intf)
{
int err;
dev_dbg(class_dev->dev, "rtc intf: sysfs\n");
err = sysfs_create_group(&class_dev->kobj, &rtc_attr_group);
if (err)
dev_err(class_dev->dev, "failed to create %s\n",
"sysfs attributes");
else if (rtc_does_wakealarm(class_dev)) {
/* not all RTCs support both alarms and wakeup */
err = class_device_create_file(class_dev,
&class_device_attr_wakealarm);
if (err) {
dev_err(class_dev->dev, "failed to create %s\n",
"alarm attribute");
sysfs_remove_group(&class_dev->kobj, &rtc_attr_group);
}
#ifdef CONFIG_RTC_WAKERS
err = wakers_register(class_dev);
if (err) {
dev_err(class_dev->dev, "failed to create %s\n",
"alarm attribute");
sysfs_remove_group(&class_dev->kobj, &rtc_attr_group);
}
#endif
}
return err;
}
void rtc_sysfs_add_device(struct rtc_device *rtc)
{
int err;
/* not all RTCs support both alarms and wakeup */
if (!rtc_does_wakealarm(rtc))
return;
err = device_create_file(&rtc->dev, &dev_attr_wakealarm);
if (err)
dev_err(rtc->dev.parent,
"failed to create alarm attribute, %d\n", err);
}
static umode_t rtc_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct rtc_device *rtc = to_rtc_device(dev);
umode_t mode = attr->mode;
if (attr == &dev_attr_wakealarm.attr) {
if (!rtc_does_wakealarm(rtc))
mode = 0;
} else if (attr == &dev_attr_offset.attr) {
if (!rtc->ops->set_offset)
mode = 0;
}
return mode;
}
void rtc_sysfs_add_device(struct rtc_device *rtc)
{
int err1;
int err2;
/* not all RTCs support both alarms and wakeup */
if (!rtc_does_wakealarm(rtc))
return;
err1 = device_create_file(&rtc->dev, &dev_attr_wakealarm) ;
if (err1)
dev_err(rtc->dev.parent,
"failed to create alarm attribute, %d\n", err1);
///***linda add****///
err2 = device_create_file(&rtc->dev, &dev_attr_wakeup_enable) ;
if (err2)
dev_err(rtc->dev.parent,
"failed to create alarm attribute, %d\n", err2);
}
void rtc_sysfs_del_device(struct rtc_device *rtc)
{
/* REVISIT did we add it successfully? */
if (rtc_does_wakealarm(rtc))
device_remove_file(&rtc->dev, &dev_attr_wakealarm);
}
void rtc_sysfs_del_device(struct rtc_device *rtc)
{
if (rtc_does_wakealarm(rtc))
device_remove_file(&rtc->dev, &dev_attr_wakealarm);
}
