diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 56ed0c3a8c85..4124f4dd376b 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -145,12 +145,6 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
 		err = -ENODEV;
 	else if (rtc->ops->set_time)
 		err = rtc->ops->set_time(rtc->dev.parent, tm);
-	else if (rtc->ops->set_mmss64)
-		err = rtc->ops->set_mmss64(rtc->dev.parent,
-					   rtc_tm_to_time64(tm));
-	else if (rtc->ops->set_mmss)
-		err = rtc->ops->set_mmss(rtc->dev.parent,
-					 rtc_tm_to_time64(tm));
 	else
 		err = -EINVAL;
 
diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
index 8bf8e0c1e8fd..8b70f0520e13 100644
--- a/drivers/rtc/systohc.c
+++ b/drivers/rtc/systohc.c
@@ -30,8 +30,7 @@ int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec)
 	if (!rtc)
 		goto out_err;
 
-	if (!rtc->ops || (!rtc->ops->set_time && !rtc->ops->set_mmss64 &&
-			  !rtc->ops->set_mmss))
+	if (!rtc->ops || !rtc->ops->set_time)
 		goto out_close;
 
 	/* Compute the value of tv_nsec we require the caller to supply in
@@ -53,9 +52,6 @@ int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec)
 
 	rtc_time64_to_tm(to_set.tv_sec, &tm);
 
-	/* rtc_hctosys exclusively uses UTC, so we call set_time here, not
-	 * set_mmss.
-	 */
 	err = rtc_set_time(rtc, &tm);
 
 out_close:
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 48d3f8e0b64f..df666cf29ef1 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -79,8 +79,6 @@ struct rtc_class_ops {
 	int (*read_alarm)(struct device *, struct rtc_wkalrm *);
 	int (*set_alarm)(struct device *, struct rtc_wkalrm *);
 	int (*proc)(struct device *, struct seq_file *);
-	int (*set_mmss64)(struct device *, time64_t secs);
-	int (*set_mmss)(struct device *, unsigned long secs);
 	int (*alarm_irq_enable)(struct device *, unsigned int enabled);
 	int (*read_offset)(struct device *, long *offset);
 	int (*set_offset)(struct device *, long offset);