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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2018-03-08 02:13:52 +0300
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2018-03-17 16:20:55 +0300
commit83bbc5ac63326433755592829caf02920b3d8dc0 (patch)
tree377fb7f37532d24d581e27b6f51b10fd3978f42c /include/linux/rtc.h
parent989515647e783221f9737ed1cf519573d26ce99b (diff)
downloadlinux-83bbc5ac63326433755592829caf02920b3d8dc0.tar.xz
rtc: Add useful timestamp definitions
Add commonly used timestamps for range definition. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'include/linux/rtc.h')
-rw-r--r--include/linux/rtc.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 82a3038f16ab..4c007f69082f 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -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,