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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,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 0AAFFC47258 for ; Tue, 5 May 2020 20:14:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DFB242068E for ; Tue, 5 May 2020 20:14:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729213AbgEEUO1 (ORCPT ); Tue, 5 May 2020 16:14:27 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:46625 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727785AbgEEUO1 (ORCPT ); Tue, 5 May 2020 16:14:27 -0400 Received: from localhost (lfbn-lyo-1-9-35.w86-202.abo.wanadoo.fr [86.202.105.35]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay12.mail.gandi.net (Postfix) with ESMTPSA id C7098200006; Tue, 5 May 2020 20:14:00 +0000 (UTC) From: Alexandre Belloni To: linux-rtc@vger.kernel.org Cc: Rasmus Villemoes , =?UTF-8?q?Per=20N=C3=B8rgaard=20Christensen?= , linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 5/5] rtc: pcf2127: report battery switch over Date: Tue, 5 May 2020 22:13:10 +0200 Message-Id: <20200505201310.255145-5-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200505201310.255145-1-alexandre.belloni@bootlin.com> References: <20200505201310.255145-1-alexandre.belloni@bootlin.com> 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 Add support for the RTC_VL_BACKUP_SWITCH flag to report battery switch over events. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-pcf2127.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 039078029bd4..967de68e1b03 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -188,18 +188,27 @@ static int pcf2127_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { struct pcf2127 *pcf2127 = dev_get_drvdata(dev); - int touser; + int val, touser = 0; int ret; switch (cmd) { case RTC_VL_READ: - ret = regmap_read(pcf2127->regmap, PCF2127_REG_CTRL3, &touser); + ret = regmap_read(pcf2127->regmap, PCF2127_REG_CTRL3, &val); if (ret) return ret; - touser = touser & PCF2127_BIT_CTRL3_BLF ? RTC_VL_BACKUP_LOW : 0; + if (val & PCF2127_BIT_CTRL3_BLF) + touser = RTC_VL_BACKUP_LOW; + + if (val & PCF2127_BIT_CTRL3_BF) + touser |= RTC_VL_BACKUP_SWITCH; return put_user(touser, (unsigned int __user *)arg); + + case RTC_VL_CLR: + return regmap_update_bits(pcf2127->regmap, PCF2127_REG_CTRL3, + PCF2127_BIT_CTRL3_BF, 0); + default: return -ENOIOCTLCMD; } @@ -493,7 +502,6 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, */ ret = regmap_update_bits(pcf2127->regmap, PCF2127_REG_CTRL3, PCF2127_BIT_CTRL3_BTSE | - PCF2127_BIT_CTRL3_BF | PCF2127_BIT_CTRL3_BIE | PCF2127_BIT_CTRL3_BLIE, 0); if (ret) { -- 2.26.2