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=ham 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 1F125C32754 for ; Tue, 6 Aug 2019 02:40:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E46DE2147A for ; Tue, 6 Aug 2019 02:40:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729334AbfHFCkZ (ORCPT ); Mon, 5 Aug 2019 22:40:25 -0400 Received: from aclms3.advantech.com.tw ([125.252.70.86]:62562 "EHLO ACLMS3.advantech.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731387AbfHFCkZ (ORCPT ); Mon, 5 Aug 2019 22:40:25 -0400 X-Greylist: delayed 602 seconds by postgrey-1.27 at vger.kernel.org; Mon, 05 Aug 2019 22:40:23 EDT Received: from taipei08.ADVANTECH.CORP (unverified [172.20.0.235]) by ACLMS3.advantech.com.tw (Clearswift SMTPRS 5.6.0) with ESMTP id ; Tue, 6 Aug 2019 10:31:59 +0800 From: To: CC: , , , Jean Delvare , Guenter Roeck , , Subject: [v4 2/2] hwmon: (nct7904) Fix the confused calculation of case hwmon_fan_min in function "nct7904_write_fan". Date: Tue, 6 Aug 2019 02:31:46 +0000 Message-ID: <83bd9eed7e19ffc8c064648ae00bf1c71b9d2815.1565006479.git.amy.shih@advantech.com.tw> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.17.10.28] X-ClientProxiedBy: ACLDAG.ADVANTECH.CORP (172.20.2.88) To taipei08.ADVANTECH.CORP (172.20.0.235) X-StopIT: No Sender: linux-hwmon-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org From: "amy.shih" Use the macro "DIV_ROUND_CLOSEST" instead. Signed-off-by: amy.shih Changes in v4: - Fix the confused calculation of case hwmon_fan_min in function "nct7904_write_fan". Changes in v3: - Squashed subsequent fixes of below patches into one patch. -- Fix bad fallthrough in various switch statements. -- Fix the wrong declared of tmp as u8 in nct7904_write_in, declared tmp to int. -- Fix incorrect register setting of voltage. -- Fix incorrect register bit mapping of temperature alarm. -- Fix wrong return code 0x1fff in function nct7904_write_fan. -- Delete wrong comment in function nct7904_write_in. -- Fix wrong attribute names for temperature. -- Fix wrong registers setting for temperature. Changes in v2: - Fix bad fallthrough in various switch statements. - Fix the wrong declared of tmp as u8 in nct7904_write_in, declared tmp to int. --- drivers/hwmon/nct7904.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c index 6527b56e4f6c..76372f20d71a 100644 --- a/drivers/hwmon/nct7904.c +++ b/drivers/hwmon/nct7904.c @@ -553,7 +553,7 @@ static int nct7904_write_fan(struct device *dev, u32 attr, int channel, if (val <= 0) return -EINVAL; - val = clamp_val((1350000 + (val >> 1)) / val, 1, 0x1fff); + val = clamp_val(DIV_ROUND_CLOSEST(1350000, val), 1, 0x1fff); tmp = (val >> 5) & 0xff; ret = nct7904_write_reg(data, BANK_1, FANIN1_HV_HL_REG + channel * 2, tmp); -- 2.17.1