From patchwork Wed Mar 7 23:13:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 882862 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-rtc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=bootlin.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zxTwj1gW7z9sgr for ; Thu, 8 Mar 2018 10:13:56 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754709AbeCGXN4 (ORCPT ); Wed, 7 Mar 2018 18:13:56 -0500 Received: from mail.bootlin.com ([62.4.15.54]:57173 "EHLO mail.bootlin.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754706AbeCGXNz (ORCPT ); Wed, 7 Mar 2018 18:13:55 -0500 Received: by mail.bootlin.com (Postfix, from userid 110) id 0D25C206FB; Thu, 8 Mar 2018 00:13:53 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on mail.bootlin.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT, URIBL_BLOCKED shortcircuit=ham autolearn=disabled version=3.4.0 Received: from localhost (unknown [88.191.26.124]) by mail.bootlin.com (Postfix) with ESMTPSA id BBAAB2037F; Thu, 8 Mar 2018 00:13:52 +0100 (CET) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH] rtc: Add useful timestamp definitions Date: Thu, 8 Mar 2018 00:13:52 +0100 Message-Id: <20180307231352.21840-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.16.2 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org Add commonly used timestamps for range definition. Signed-off-by: Alexandre Belloni --- include/linux/rtc.h | 5 +++++ 1 file changed, 5 insertions(+) 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,