From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752779AbbJLBVh (ORCPT ); Sun, 11 Oct 2015 21:21:37 -0400 Received: from nasmtp02.atmel.com ([204.2.163.16]:53439 "EHLO SJOEDG01.corp.atmel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752451AbbJLBVg (ORCPT ); Sun, 11 Oct 2015 21:21:36 -0400 From: Wenyou Yang To: Alessandro Zummo , Alexandre Belloni CC: Nicolas Ferre , Ludovic Desroches , , , , Wenyou Yang Subject: [PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending Date: Mon, 12 Oct 2015 09:17:57 +0800 Message-ID: <1444612677-26178-1-git-send-email-wenyou.yang@atmel.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is to clear the RTC alarm status flag prior to suspending to avoid the erroneous wake-up activity. Signed-off-by: Wenyou Yang --- drivers/rtc/rtc-at91rm9200.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index cb62e21..b60fd47 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -495,6 +495,8 @@ static int at91_rtc_suspend(struct device *dev) /* this IRQ is shared with DBGU and other hardware which isn't * necessarily doing PM like we are... */ + at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); + at91_rtc_imr = at91_rtc_read_imr() & (AT91_RTC_ALARM|AT91_RTC_SECEV); if (at91_rtc_imr) { -- 1.7.9.5