--- zzzz-none-000/linux-3.10.107/drivers/rtc/hctosys.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/rtc/hctosys.c	2021-02-04 17:41:59.000000000 +0000
@@ -9,6 +9,8 @@
  * published by the Free Software Foundation.
 */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/rtc.h>
 
 /* IMPORTANT: the RTC only stores whole seconds. It is arbitrary
@@ -26,14 +28,14 @@
 {
 	int err = -ENODEV;
 	struct rtc_time tm;
-	struct timespec tv = {
+	struct timespec64 tv64 = {
 		.tv_nsec = NSEC_PER_SEC >> 1,
 	};
 	struct rtc_device *rtc = rtc_class_open(CONFIG_RTC_HCTOSYS_DEVICE);
 
 	if (rtc == NULL) {
-		pr_err("%s: unable to open rtc device (%s)\n",
-			__FILE__, CONFIG_RTC_HCTOSYS_DEVICE);
+		pr_info("unable to open rtc device (%s)\n",
+			CONFIG_RTC_HCTOSYS_DEVICE);
 		goto err_open;
 	}
 
@@ -45,25 +47,17 @@
 
 	}
 
-	err = rtc_valid_tm(&tm);
-	if (err) {
-		dev_err(rtc->dev.parent,
-			"hctosys: invalid date/time\n");
-		goto err_invalid;
-	}
-
-	rtc_tm_to_time(&tm, &tv.tv_sec);
+	tv64.tv_sec = rtc_tm_to_time64(&tm);
 
-	err = do_settimeofday(&tv);
+	err = do_settimeofday64(&tv64);
 
 	dev_info(rtc->dev.parent,
 		"setting system clock to "
-		"%d-%02d-%02d %02d:%02d:%02d UTC (%u)\n",
+		"%d-%02d-%02d %02d:%02d:%02d UTC (%lld)\n",
 		tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
 		tm.tm_hour, tm.tm_min, tm.tm_sec,
-		(unsigned int) tv.tv_sec);
+		(long long) tv64.tv_sec);
 
-err_invalid:
 err_read:
 	rtc_class_close(rtc);