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-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/systohc.c61
2 files changed, 0 insertions, 62 deletions
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index bfb57464118d..bb8f319b09fb 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -6,7 +6,6 @@
ccflags-$(CONFIG_RTC_DEBUG) := -DDEBUG
obj-$(CONFIG_RTC_LIB) += lib.o
-obj-$(CONFIG_RTC_SYSTOHC) += systohc.o
obj-$(CONFIG_RTC_CLASS) += rtc-core.o
obj-$(CONFIG_RTC_MC146818_LIB) += rtc-mc146818-lib.o
rtc-core-y := class.o interface.o
diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
deleted file mode 100644
index 8b70f0520e13..000000000000
--- a/drivers/rtc/systohc.c
+++ /dev/null
@@ -1,61 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/rtc.h>
-#include <linux/time.h>
-
-/**
- * rtc_set_ntp_time - Save NTP synchronized time to the RTC
- * @now: Current time of day
- * @target_nsec: pointer for desired now->tv_nsec value
- *
- * Replacement for the NTP platform function update_persistent_clock64
- * that stores time for later retrieval by rtc_hctosys.
- *
- * Returns 0 on successful RTC update, -ENODEV if a RTC update is not
- * possible at all, and various other -errno for specific temporary failure
- * cases.
- *
- * -EPROTO is returned if now.tv_nsec is not close enough to *target_nsec.
- *
- * If temporary failure is indicated the caller should try again 'soon'
- */
-int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec)
-{
- struct rtc_device *rtc;
- struct rtc_time tm;
- struct timespec64 to_set;
- int err = -ENODEV;
- bool ok;
-
- rtc = rtc_class_open(CONFIG_RTC_SYSTOHC_DEVICE);
- if (!rtc)
- goto out_err;
-
- if (!rtc->ops || !rtc->ops->set_time)
- goto out_close;
-
- /* Compute the value of tv_nsec we require the caller to supply in
- * now.tv_nsec. This is the value such that (now +
- * set_offset_nsec).tv_nsec == 0.
- */
- set_normalized_timespec64(&to_set, 0, -rtc->set_offset_nsec);
- *target_nsec = to_set.tv_nsec;
-
- /* The ntp code must call this with the correct value in tv_nsec, if
- * it does not we update target_nsec and return EPROTO to make the ntp
- * code try again later.
- */
- ok = rtc_tv_nsec_ok(rtc->set_offset_nsec, &to_set, &now);
- if (!ok) {
- err = -EPROTO;
- goto out_close;
- }
-
- rtc_time64_to_tm(to_set.tv_sec, &tm);
-
- err = rtc_set_time(rtc, &tm);
-
-out_close:
- rtc_class_close(rtc);
-out_err:
- return err;
-}