Merge tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This contains a few series that have been in preparation for a while
  and that will help systems with RTCs that will fail in 2038, 2069 or
  2100.

  Subsystem:
   - Add tracepoints
   - Rework of the RTC/nvmem API to allow drivers to discard struct
     nvmem_config after registration
   - New range API, drivers can now expose the useful range of the RTC
   - New offset API the core is now able to add an offset to the RTC
     time, modifying the supported range.
   - Multiple rtc_time64_to_tm fixes
   - Handle time_t overflow on 32 bit platforms in the core instead of
     letting drivers do crazy things.
   - remove rtc_control API

  New driver:
   - Intersil ISL12026

  Drivers:
   - Drivers exposing the RTC non volatile memory have been converted to
     use nvmem
   - Removed useless time and date validation
   - Removed an indirection pattern that was a cargo cult from ancient
     drivers
   - Removed VLA usage
   - Fixed a possible race condition in probe functions
   - AB8540 support is dropped from ab8500
   - pcf85363 now has alarm support"

* tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (128 commits)
  rtc: snvs: Fix usage of snvs_rtc_enable
  rtc: mt7622: fix module autoloading for OF platform drivers
  rtc: isl12022: use true and false for boolean values
  rtc: ab8500: Drop AB8540 support
  rtc: remove a warning during scripts/kernel-doc step
  rtc: 88pm860x: remove artificial limitation
  rtc: 88pm80x: remove artificial limitation
  rtc: st-lpc: remove artificial limitation
  rtc: mrst: remove artificial limitation
  rtc: mv: remove artificial limitation
  rtc: hctosys: Ensure system time doesn't overflow time_t
  parisc: time: stop validating rtc_time in .read_time
  rtc: pcf85063: fix clearing bits in pcf85063_start_clock
  rtc: at91sam9: Set name of regmap_config
  rtc: s5m: Remove VLA usage
  rtc: s5m: Move enum from rtc.h to rtc-s5m.c
  rtc: remove VLA usage
  rtc: Add useful timestamp definitions
  rtc: Add one offset seconds to expand RTC range
  rtc: Factor out the RTC range validation into rtc_valid_range()
  ...

1 files changed, 0 insertions, 83 deletions

diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 0c858d0..57dc546 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -809,89 +809,6 @@ static __poll_t rtc_poll(struct file *file, poll_table *wait)
 }
 #endif
 
-int rtc_register(rtc_task_t *task)
-{
-#ifndef RTC_IRQ
-	return -EIO;
-#else
-	if (task == NULL || task->func == NULL)
-		return -EINVAL;
-	spin_lock_irq(&rtc_lock);
-	if (rtc_status & RTC_IS_OPEN) {
-		spin_unlock_irq(&rtc_lock);
-		return -EBUSY;
-	}
-	spin_lock(&rtc_task_lock);
-	if (rtc_callback) {
-		spin_unlock(&rtc_task_lock);
-		spin_unlock_irq(&rtc_lock);
-		return -EBUSY;
-	}
-	rtc_status |= RTC_IS_OPEN;
-	rtc_callback = task;
-	spin_unlock(&rtc_task_lock);
-	spin_unlock_irq(&rtc_lock);
-	return 0;
-#endif
-}
-EXPORT_SYMBOL(rtc_register);
-
-int rtc_unregister(rtc_task_t *task)
-{
-#ifndef RTC_IRQ
-	return -EIO;
-#else
-	unsigned char tmp;
-
-	spin_lock_irq(&rtc_lock);
-	spin_lock(&rtc_task_lock);
-	if (rtc_callback != task) {
-		spin_unlock(&rtc_task_lock);
-		spin_unlock_irq(&rtc_lock);
-		return -ENXIO;
-	}
-	rtc_callback = NULL;
-
-	/* disable controls */
-	if (!hpet_mask_rtc_irq_bit(RTC_PIE | RTC_AIE | RTC_UIE)) {
-		tmp = CMOS_READ(RTC_CONTROL);
-		tmp &= ~RTC_PIE;
-		tmp &= ~RTC_AIE;
-		tmp &= ~RTC_UIE;
-		CMOS_WRITE(tmp, RTC_CONTROL);
-		CMOS_READ(RTC_INTR_FLAGS);
-	}
-	if (rtc_status & RTC_TIMER_ON) {
-		rtc_status &= ~RTC_TIMER_ON;
-		del_timer(&rtc_irq_timer);
-	}
-	rtc_status &= ~RTC_IS_OPEN;
-	spin_unlock(&rtc_task_lock);
-	spin_unlock_irq(&rtc_lock);
-	return 0;
-#endif
-}
-EXPORT_SYMBOL(rtc_unregister);
-
-int rtc_control(rtc_task_t *task, unsigned int cmd, unsigned long arg)
-{
-#ifndef RTC_IRQ
-	return -EIO;
-#else
-	unsigned long flags;
-	if (cmd != RTC_PIE_ON && cmd != RTC_PIE_OFF && cmd != RTC_IRQP_SET)
-		return -EINVAL;
-	spin_lock_irqsave(&rtc_task_lock, flags);
-	if (rtc_callback != task) {
-		spin_unlock_irqrestore(&rtc_task_lock, flags);
-		return -ENXIO;
-	}
-	spin_unlock_irqrestore(&rtc_task_lock, flags);
-	return rtc_do_ioctl(cmd, arg, 1);
-#endif
-}
-EXPORT_SYMBOL(rtc_control);
-
 /*
  *	The various file operations we support.
  */