Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933582AbaJURvI (ORCPT ); Tue, 21 Oct 2014 13:51:08 -0400 Received: from mail-la0-f46.google.com ([209.85.215.46]:51238 "EHLO mail-la0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933383AbaJURo4 (ORCPT ); Tue, 21 Oct 2014 13:44:56 -0400 X-Google-Original-Sender: From: Johan Hovold To: Alessandro Zummo , Tony Lindgren , =?UTF-8?q?Beno=C3=AEt=20Cousson?= , Felipe Balbi Cc: Andrew Morton , Lokesh Vutla , Guenter Roeck , nsekhar@ti.com, t-kristo@ti.com, j-keerthy@ti.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, rtc-linux@googlegroups.com, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH v2 16/20] rtc: omap: enable wake-up from power off Date: Tue, 21 Oct 2014 19:38:02 +0200 Message-Id: <1413913086-12730-17-git-send-email-johan@kernel.org> X-Mailer: git-send-email 2.0.4 In-Reply-To: <1413913086-12730-1-git-send-email-johan@kernel.org> References: <1412881594-25678-1-git-send-email-johan@kernel.org> <1413913086-12730-1-git-send-email-johan@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ALARM interrupt must not be disabled during shutdown in order to be able to power up the system using an RTC alarm. Signed-off-by: Johan Hovold --- drivers/rtc/rtc-omap.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index f6c93f877857..cb5ef3c845d1 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -687,8 +687,15 @@ static SIMPLE_DEV_PM_OPS(omap_rtc_pm_ops, omap_rtc_suspend, omap_rtc_resume); static void omap_rtc_shutdown(struct platform_device *pdev) { struct omap_rtc *rtc = platform_get_drvdata(pdev); + u8 mask; - rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0); + /* + * Keep the ALARM interrupt enabled to allow the system to power up on + * alarm events. + */ + mask = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG); + mask &= OMAP_RTC_INTERRUPTS_IT_ALARM; + rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, mask); } static struct platform_driver omap_rtc_driver = { -- 2.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/