[PATCH] rtc: ds1685: fix ds1685_rtc_alarm_irq_enable build error

[Arnd Bergmann <arnd@arndb.de>]

The newly added ds1685 driver causes a build error in linux-next
when enabled without CONFIG_RTC_INTF_DEV:

drivers/rtc/rtc-ds1685.c:919:22: error: 'ds1685_rtc_alarm_irq_enable' undeclared here (not in a function)
  .alarm_irq_enable = ds1685_rtc_alarm_irq_enable,

Apparently the driver was incorrectly changed to reflect the interface
change from 16380c153a69c ("RTC: Convert rtc drivers to use the
alarm_irq_enable method"), which removed the respective #ifdef
from all other rtc drivers.

This does the same change that was merged for the other drivers
before and removes the #ifdef, allowing the interrupts to be
enabled through the in-kernel rtc interface independent of the
existence of /dev/rtc.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: aaaf5fbf56f ("rtc: add driver for DS1685 family of real time clocks")
---
For some reason, this error never showed up in linux-next, but it
does now that the driver has made it into mainline, while doing ARM
randconfig testing.

diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index 8c3bfcb115b7..5dc1ef9d0008 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -528,7 +528,6 @@ ds1685_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 /* ----------------------------------------------------------------------- */
 /* /dev/rtcX Interface functions */
 
-#ifdef CONFIG_RTC_INTF_DEV
 /**
  * ds1685_rtc_alarm_irq_enable - replaces ioctl() RTC_AIE on/off.
  * @dev: pointer to device structure.
@@ -557,7 +556,6 @@ ds1685_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 
 	return 0;
 }
-#endif
 /* ----------------------------------------------------------------------- */