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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, 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 BF1C2C38A2A for ; Fri, 8 May 2020 05:54:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A96AD20870 for ; Fri, 8 May 2020 05:54:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725971AbgEHFyJ (ORCPT ); Fri, 8 May 2020 01:54:09 -0400 Received: from inva020.nxp.com ([92.121.34.13]:50658 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725865AbgEHFyJ (ORCPT ); Fri, 8 May 2020 01:54:09 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 7B7731A12CB; Fri, 8 May 2020 07:54:06 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id F06EA1A077F; Fri, 8 May 2020 07:54:01 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 0A06A40288; Fri, 8 May 2020 13:53:55 +0800 (SGT) From: Biwen Li To: leoyang.li@nxp.com, robh+dt@kernel.org, mpe@ellerman.id.au, benh@kernel.crashing.org, a.zummo@towertech.it, alexandre.belloni@bootlin.com Cc: devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-rtc@vger.kernel.org, Biwen Li Subject: [PATCH 1/3] rtc: ds1374: add uie_unsupported property to drop warning Date: Fri, 8 May 2020 13:49:23 +0800 Message-Id: <20200508054925.48237-1-biwen.li@oss.nxp.com> X-Mailer: git-send-email 2.17.1 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org From: Biwen Li Add uie_unsupported property to drop warning as follows: - $ hwclock.util-linux hwclock.util-liux: select() /dev/rtc0 to wait for clock tick timed out My case: - RTC ds1374's INT pin is connected to VCC on T4240RDB, then the RTC cannot inform cpu about the alarm interrupt Signed-off-by: Biwen Li --- drivers/rtc/rtc-ds1374.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c index 9c51a12cf70f..e530e887a17e 100644 --- a/drivers/rtc/rtc-ds1374.c +++ b/drivers/rtc/rtc-ds1374.c @@ -651,6 +651,10 @@ static int ds1374_probe(struct i2c_client *client, if (ret) return ret; + if (of_property_read_bool(client->dev.of_node, + "uie_unsupported")) + ds1374->rtc->uie_unsupported = true; + #ifdef CONFIG_RTC_DRV_DS1374_WDT save_client = client; ret = misc_register(&ds1374_miscdev); -- 2.17.1