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rtc: Add useful timestamp definitions 

Add commonly used timestamps for range definition.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
hifive-unleashed-5.1
Alexandre Belloni 2018-03-08 00:13:52 +01:00
parent 989515647e
commit 83bbc5ac63
1 changed files with 5 additions and 0 deletions
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5
include/linux/rtc.h
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@ -169,6 +169,11 @@ struct rtc_device {
};
#define to_rtc_device(d) container_of(d, struct rtc_device, dev)
/* useful timestamps */
#define RTC_TIMESTAMP_BEGIN_1900 -2208989361LL /* 1900-01-01 00:00:00 */
#define RTC_TIMESTAMP_BEGIN_2000 946684800LL /* 2000-01-01 00:00:00 */
#define RTC_TIMESTAMP_END_2099 4102444799LL /* 2099-12-31 23:59:59 */
extern struct rtc_device *rtc_device_register(const char *name,
struct device *dev,
const struct rtc_class_ops *ops,