From patchwork Wed Mar 20 11:30:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 10861427 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C75A717E9 for ; Wed, 20 Mar 2019 11:30:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A41A128C7B for ; Wed, 20 Mar 2019 11:30:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 97F2129B4F; Wed, 20 Mar 2019 11:30:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 3718228C7B for ; Wed, 20 Mar 2019 11:30:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vT28vfTp8qv3EEYxv26E6Sv9KhMS6vXdfPYPRm7Gy+Q=; b=vBYMRNM2yVCyvJ 5qgqH/FIygZct193IXvbcltfe0yxuw7/89FTugdQH4Muq4J4ExJkqdi+SX95GKndWehYBJ///5Lf8 NYRFeOhrywcS/oZguLU4At4oRSQBcCYd32dCzFgH6ih8BVL6axxXSv2T8cLVz1OF4UPx8GSryF9zJ eiuabS8IBCZJ51kWKQLCwFgxEmI3g2AriDw0OWxFiG4oqXW7mXJDWP5gHfbQ4QggnoNhA1sZjnpa6 Bs7X441wt0zaJqU2bmlrKjgNOdj+e5OwyNVP3BiywUcWpIfM71ZTehmbBPrZ8FAbDy1KWo9T+zT8Y aDD+l9mCMAxnhogD+lqw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1h6ZQj-0002eh-Qv; Wed, 20 Mar 2019 11:30:45 +0000 Received: from relay6-d.mail.gandi.net ([217.70.183.198]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1h6ZQV-0002Iq-5I for linux-arm-kernel@lists.infradead.org; Wed, 20 Mar 2019 11:30:34 +0000 X-Originating-IP: 182.72.246.220 Received: from localhost (unknown [182.72.246.220]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id 34B38C0012; Wed, 20 Mar 2019 11:30:25 +0000 (UTC) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Subject: [PATCH 3/3] rtc: sh: set range Date: Wed, 20 Mar 2019 12:30:10 +0100 Message-Id: <20190320113010.8955-3-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190320113010.8955-1-alexandre.belloni@bootlin.com> References: <20190320113010.8955-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190320_043031_619999_30EBA38E X-CRM114-Status: GOOD ( 11.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-renesas-soc@vger.kernel.org, Alexandre Belloni , Chris Brandt , Geert Uytterhoeven , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The SH RTC is a BCD RTC with some version having 4 digits for the year. The range for the RTCs with only 2 digits for the year was unfortunately shifted to handle 1999 to 2098. Signed-off-by: Alexandre Belloni Reviewed-by: Geert Uytterhoeven --- drivers/rtc/rtc-sh.c | 8 ++++++++ include/linux/rtc.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index b582af10ddb5..37964a867de7 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -601,6 +601,14 @@ static int __init sh_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->ops = &sh_rtc_ops; rtc->rtc_dev->max_user_freq = 256; + if (rtc->capabilities & RTC_CAP_4_DIGIT_YEAR) { + rtc->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_1900; + rtc->rtc_dev->range_max = RTC_TIMESTAMP_END_9999; + } else { + rtc->rtc_dev->range_min = mktime64(1999, 1, 1, 0, 0, 0); + rtc->rtc_dev->range_max = mktime64(2098, 12, 31, 23, 59, 59); + } + ret = rtc_register_device(rtc->rtc_dev); if (ret) goto err_unmap; diff --git a/include/linux/rtc.h b/include/linux/rtc.h index f89bfbb54902..588120ba372c 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -165,6 +165,7 @@ struct rtc_device { #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 */ +#define RTC_TIMESTAMP_END_9999 253402300799LL /* 9999-12-31 23:59:59 */ extern struct rtc_device *devm_rtc_device_register(struct device *dev, const char *name,