From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755874AbcBWXFd (ORCPT ); Tue, 23 Feb 2016 18:05:33 -0500 Received: from down.free-electrons.com ([37.187.137.238]:53794 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755069AbcBWXFc (ORCPT ); Tue, 23 Feb 2016 18:05:32 -0500 From: Alexandre Belloni To: rtc-linux@googlegroups.com Cc: Alessandro Zummo , Juergen Borleis , linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH] rtc: pcf85063: remove useless century handling Date: Wed, 24 Feb 2016 00:05:28 +0100 Message-Id: <1456268728-343-1-git-send-email-alexandre.belloni@free-electrons.com> X-Mailer: git-send-email 2.7.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org pcf85063_get_datetime() tries to handle a century bit but that bit is not documented and the final value is never used anywhere else in the kernel. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-pcf85063.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c index c5db231f14de..2b3b99b094b5 100644 --- a/drivers/rtc/rtc-pcf85063.c +++ b/drivers/rtc/rtc-pcf85063.c @@ -31,13 +31,10 @@ #define PCF85063_REG_MO 0x09 #define PCF85063_REG_YR 0x0A -#define PCF85063_MO_C 0x80 /* century */ - static struct i2c_driver pcf85063_driver; struct pcf85063 { struct rtc_device *rtc; - int c_polarity; /* 0: MO_C=1 means 19xx, otherwise MO_C=1 means 20xx */ int voltage_low; /* indicates if a low_voltage was detected */ }; @@ -103,9 +100,6 @@ static int pcf85063_get_datetime(struct i2c_client *client, struct rtc_time *tm) tm->tm_year = bcd2bin(regs[6]); if (tm->tm_year < 70) tm->tm_year += 100; /* assume we are in 1970...2069 */ - /* detect the polarity heuristically. see note above. */ - pcf85063->c_polarity = (regs[5] & PCF85063_MO_C) ? - (tm->tm_year >= 100) : (tm->tm_year < 100); return rtc_valid_tm(tm); } -- 2.7.0