From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: Thu, 31 May 2018 09:56:43 +0000 (+0200)
Subject: rtc: ds1685: Add range
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c36b52ed18c2b3d84b26cf8bedca0f6649aeb2b8;p=linux.git

rtc: ds1685: Add range

Useful range is 2000-2099 because leap year fails on centuries.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---

diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index e6390475380f3..5c0db6c8134cb 100644
--- a/drivers/rtc/rtc-ds1685.c
+++ b/drivers/rtc/rtc-ds1685.c
@@ -2043,6 +2043,10 @@ ds1685_rtc_probe(struct platform_device *pdev)
 
 	rtc_dev->ops = &ds1685_rtc_ops;
 
+	/* Century bit is useless because leap year fails in 1900 and 2100 */
+	rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_2000;
+	rtc_dev->range_max = RTC_TIMESTAMP_END_2099;
+
 	/* Maximum periodic rate is 8192Hz (0.122070ms). */
 	rtc_dev->max_user_freq = RTC_MAX_USER_FREQ;