From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.bootlin.com ([62.4.15.54]:44964 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754488AbeEaJ5T (ORCPT ); Thu, 31 May 2018 05:57:19 -0400 From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 2/2] rtc: ds1685: Add range Date: Thu, 31 May 2018 11:56:43 +0200 Message-Id: <20180531095643.8581-2-alexandre.belloni@bootlin.com> In-Reply-To: <20180531095643.8581-1-alexandre.belloni@bootlin.com> References: <20180531095643.8581-1-alexandre.belloni@bootlin.com> Sender: linux-rtc-owner@vger.kernel.org List-ID: Useful range is 2000-2099 because leap year fails on centuries. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-ds1685.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index e6390475380f..5c0db6c8134c 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; -- 2.17.0