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rtc: remove rtc_irq_register/rtc_irq_unregister 

The rtc_irq_* interface is not used from outside the RTC subsytem since
2016.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Alexandre Belloni 2018-07-25 14:34:29 +02:00
parent ec623ff014
commit 1560d0848a
2 changed files with 0 additions and 37 deletions
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33
drivers/rtc/interface.c
View File

@ -719,39 +719,6 @@ void rtc_class_close(struct rtc_device *rtc)
}
EXPORT_SYMBOL_GPL(rtc_class_close);
int rtc_irq_register(struct rtc_device *rtc, struct rtc_task *task)
{
int retval = -EBUSY;
if (task == NULL || task->func == NULL)
return -EINVAL;
/* Cannot register while the char dev is in use */
if (test_and_set_bit_lock(RTC_DEV_BUSY, &rtc->flags))
return -EBUSY;
spin_lock_irq(&rtc->irq_task_lock);
if (rtc->irq_task == NULL) {
rtc->irq_task = task;
retval = 0;
}
spin_unlock_irq(&rtc->irq_task_lock);
clear_bit_unlock(RTC_DEV_BUSY, &rtc->flags);
return retval;
}
EXPORT_SYMBOL_GPL(rtc_irq_register);
void rtc_irq_unregister(struct rtc_device *rtc, struct rtc_task *task)
{
spin_lock_irq(&rtc->irq_task_lock);
if (rtc->irq_task == task)
rtc->irq_task = NULL;
spin_unlock_irq(&rtc->irq_task_lock);
}
EXPORT_SYMBOL_GPL(rtc_irq_unregister);
static int rtc_update_hrtimer(struct rtc_device *rtc, int enabled)
{
/*

4
include/linux/rtc.h
View File

@ -204,10 +204,6 @@ extern void rtc_update_irq(struct rtc_device *rtc,
extern struct rtc_device *rtc_class_open(const char *name);
extern void rtc_class_close(struct rtc_device *rtc);
extern int rtc_irq_register(struct rtc_device *rtc,
struct rtc_task *task);
extern void rtc_irq_unregister(struct rtc_device *rtc,
struct rtc_task *task);
extern int rtc_irq_set_state(struct rtc_device *rtc,
struct rtc_task *task, int enabled);
extern int rtc_irq_set_freq(struct rtc_device *rtc,