1 files changed, 9 insertions, 7 deletions

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index fd2c652504ff..4348c4b0d453 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -50,10 +50,15 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
 
         if (!rtc->ops)
                 err = -ENODEV;
-        else if (!rtc->ops->set_time)
-                err = -EINVAL;
-        else
+        else if (rtc->ops->set_time)
                 err = rtc->ops->set_time(rtc->dev.parent, tm);
+        else if (rtc->ops->set_mmss) {
+                unsigned long secs;
+                err = rtc_tm_to_time(tm, &secs);
+                if (err == 0)
+                        err = rtc->ops->set_mmss(rtc->dev.parent, secs);
+        } else
+                err = -EINVAL;
 
         mutex_unlock(&rtc->ops_lock);
         return err;
@@ -389,7 +394,7 @@ static int __rtc_match(struct device *dev, void *data)
 {
         char *name = (char *)data;
 
-        if (strncmp(dev->bus_id, name, BUS_ID_SIZE) == 0)
+        if (strcmp(dev_name(dev), name) == 0)
                 return 1;
         return 0;
 }
@@ -504,9 +509,6 @@ int rtc_irq_set_freq(struct rtc_device *rtc, struct rtc_task *task, int freq)
         if (rtc->ops->irq_set_freq == NULL)
                 return -ENXIO;
 
-        if (!is_power_of_2(freq))
-                return -EINVAL;
-
         spin_lock_irqsave(&rtc->irq_task_lock, flags);
         if (rtc->irq_task != NULL && task == NULL)
                 err = -EBUSY;