1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index e6539cbabb3..09b4437b3e6 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -16,6 +16,7 @@
 #include <linux/kdev_t.h>
 #include <linux/idr.h>
 #include <linux/slab.h>
+#include <linux/workqueue.h>
 
 #include "rtc-core.h"
 
@@ -116,6 +117,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
                                         struct module *owner)
 {
         struct rtc_device *rtc;
+        struct rtc_wkalrm alrm;
         int id, err;
 
         if (idr_pre_get(&rtc_idr, GFP_KERNEL) == 0) {
@@ -142,6 +144,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
         rtc->id = id;
         rtc->ops = ops;
         rtc->owner = owner;
+        rtc->irq_freq = 1;
         rtc->max_user_freq = 64;
         rtc->dev.parent = dev;
         rtc->dev.class = rtc_class;
@@ -152,6 +155,24 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
         spin_lock_init(&rtc->irq_task_lock);
         init_waitqueue_head(&rtc->irq_queue);
 
+        /* Init timerqueue */
+        timerqueue_init_head(&rtc->timerqueue);
+        INIT_WORK(&rtc->irqwork, rtc_timer_do_work);
+        /* Init aie timer */
+        rtc_timer_init(&rtc->aie_timer, rtc_aie_update_irq, (void *)rtc);
+        /* Init uie timer */
+        rtc_timer_init(&rtc->uie_rtctimer, rtc_uie_update_irq, (void *)rtc);
+        /* Init pie timer */
+        hrtimer_init(&rtc->pie_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+        rtc->pie_timer.function = rtc_pie_update_irq;
+        rtc->pie_enabled = 0;
+
+        /* Check to see if there is an ALARM already set in hw */
+        err = __rtc_read_alarm(rtc, &alrm);
+
+        if (!err && !rtc_valid_tm(&alrm.time))
+                rtc_set_alarm(rtc, &alrm);
+
         strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE);
         dev_set_name(&rtc->dev, "rtc%d", id);