From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 875AEC282E0 for ; Fri, 19 Apr 2019 18:59:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5EBBF20643 for ; Fri, 19 Apr 2019 18:59:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728730AbfDSS7k (ORCPT ); Fri, 19 Apr 2019 14:59:40 -0400 Received: from mslow2.mail.gandi.net ([217.70.178.242]:36960 "EHLO mslow2.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727636AbfDSS7j (ORCPT ); Fri, 19 Apr 2019 14:59:39 -0400 Received: from relay10.mail.gandi.net (unknown [217.70.178.230]) by mslow2.mail.gandi.net (Postfix) with ESMTP id C6B953A7CBA; Fri, 19 Apr 2019 08:25:06 +0000 (UTC) Received: from localhost (alyon-652-1-176-226.w109-212.abo.wanadoo.fr [109.212.207.226]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay10.mail.gandi.net (Postfix) with ESMTPSA id D384A240007; Fri, 19 Apr 2019 08:25:05 +0000 (UTC) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 1/6] rtc: ds2404: set range Date: Fri, 19 Apr 2019 10:24:56 +0200 Message-Id: <20190419082501.17549-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The real-time clock is a 5-byte binary counter. It is incremented 256 times per second. The least significant byte is a count of fractional seconds. The upper four bytes are a count of seconds. The realtime clock can accumulate 136 years of seconds before rolling over. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-ds2404.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c index b886b6a5c178..7b36c09bed10 100644 --- a/drivers/rtc/rtc-ds2404.c +++ b/drivers/rtc/rtc-ds2404.c @@ -234,6 +234,10 @@ static int rtc_probe(struct platform_device *pdev) chip->ops = &ds2404_gpio_ops; + chip->rtc = devm_rtc_allocate_device(&pdev->dev); + if (IS_ERR(chip->rtc)) + return PTR_ERR(chip->rtc); + retval = chip->ops->map_io(chip, pdev, pdata); if (retval) goto err_chip; @@ -244,12 +248,12 @@ static int rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, chip); - chip->rtc = devm_rtc_device_register(&pdev->dev, "ds2404", - &ds2404_rtc_ops, THIS_MODULE); - if (IS_ERR(chip->rtc)) { - retval = PTR_ERR(chip->rtc); + chip->rtc->ops = &ds2404_rtc_ops; + chip->rtc->range_max = U32_MAX; + + retval = rtc_register_device(chip->rtc); + if (retval) goto err_io; - } ds2404_enable_osc(&pdev->dev); return 0; -- 2.20.1