Re: [PATCH v2 07/10] rtc: Introduce RTC_TIMESTAMP_END_2255
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: 2020-09-08 09:39:56
Also in:
linux-devicetree, linux-pwm, linux-rtc, lkml
On 05/09/2020 15:32:27+0200, Jonathan Neuschäfer wrote:
quoted hunk ↗ jump to hunk
Some RTCs store the year as an 8-bit number relative to the year 2000. This results in a maximum timestamp of 2255-12-31 23:59:59. Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> --- v2: - New patch --- include/linux/rtc.h | 1 + 1 file changed, 1 insertion(+)diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 22d1575e4991b..fcc086084a603 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h@@ -154,6 +154,7 @@ struct rtc_device { #define RTC_TIMESTAMP_END_2079 3471292799LL /* 2079-12-31 23:59:59 */ #define RTC_TIMESTAMP_END_2099 4102444799LL /* 2099-12-31 23:59:59 */ #define RTC_TIMESTAMP_END_2199 7258118399LL /* 2199-12-31 23:59:59 */ +#define RTC_TIMESTAMP_END_2255 9025257599LL /* 2255-12-31 23:59:59 */
Honestly, I wouldn't bother adding that one unless you have examples of other RTCs endng at the same date, I'm fine having the value and comment directly in the probe function.
#define RTC_TIMESTAMP_END_9999 253402300799LL /* 9999-12-31 23:59:59 */ extern struct rtc_device *devm_rtc_device_register(struct device *dev, -- 2.28.0
-- Alexandre Belloni, Bootlin Embedded Linux and Kernel engineering https://bootlin.com _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel