+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2001
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/*
*/
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
*
int rtc_get (struct rtc_time *);
int rtc_set (struct rtc_time *);
void rtc_reset (void);
+void rtc_enable_32khz_output(void);
/**
* rtc_read8() - Read an 8-bit register
* 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
*
* @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