X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Frtc.h;h=0d964d56d5b1c208c3692f2efc778d7309c85357;hb=81b8e96511610b97eb86de42a76615e73ae78e95;hp=69fe8d4db05316703ad6e48fa36843185e099f45;hpb=850f788709cef8f7d53d571aec3bfb73b14c5531;p=oweals%2Fu-boot.git

diff --git a/include/rtc.h b/include/rtc.h
index 69fe8d4db0..0d964d56d5 100644
--- a/include/rtc.h
+++ b/include/rtc.h
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2001
  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
@@ -127,6 +126,26 @@ int rtc_read8(struct udevice *dev, unsigned int reg);
  */
 int rtc_write8(struct udevice *dev, unsigned int reg, int val);
 
+/**
+ * rtc_read16() - Read a 16-bit value from the RTC
+ *
+ * @dev:	Device to read from
+ * @reg:	Offset to start reading from
+ * @valuep:	Place to put the value that is read
+ * @return 0 if OK, -ve on error
+ */
+int rtc_read16(struct udevice *dev, unsigned int reg, u16 *valuep);
+
+/**
+ * rtc_write16() - Write a 16-bit value to the RTC
+ *
+ * @dev:	Device to write to
+ * @reg:	Register to start writing to
+ * @value:	Value to write
+ * @return 0 if OK, -ve on error
+ */
+int rtc_write16(struct udevice *dev, unsigned int reg, u16 value);
+
 /**
  * rtc_read32() - Read a 32-bit value from the RTC
  *
@@ -189,7 +208,18 @@ void rtc_write32(int reg, u32 value);
  * rtc_init() - Set up the real time clock ready for use
  */
 void rtc_init(void);
-#endif
+#endif /* CONFIG_DM_RTC */
+
+/**
+ * is_leap_year - Check if year is a leap year
+ *
+ * @year	Year
+ * @return	1 if leap year
+ */
+static inline bool is_leap_year(unsigned int year)
+{
+	return (!(year % 4) && (year % 100)) || !(year % 400);
+}
 
 /**
  * rtc_calc_weekday() - Work out the weekday from a time
@@ -212,9 +242,8 @@ int rtc_calc_weekday(struct rtc_time *time);
  *
  * @time_t:	Number of seconds since 1970-01-01 00:00:00
  * @time:	Place to put the broken-out time
- * @return 0 if OK, -EINVAL if the weekday could not be determined
  */
-int rtc_to_tm(int time_t, struct rtc_time *time);
+void rtc_to_tm(u64 time_t, struct rtc_time *time);
 
 /**
  * rtc_mktime() - Convert a broken-out time into a time_t value