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=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,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 8E303C4360F for ; Sat, 23 Feb 2019 13:08:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6323F20675 for ; Sat, 23 Feb 2019 13:08:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="qSVc/DD1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727876AbfBWNID (ORCPT ); Sat, 23 Feb 2019 08:08:03 -0500 Received: from mail-wr1-f65.google.com ([209.85.221.65]:42739 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727832AbfBWNIB (ORCPT ); Sat, 23 Feb 2019 08:08:01 -0500 Received: by mail-wr1-f65.google.com with SMTP id r5so5168863wrg.9 for ; Sat, 23 Feb 2019 05:08:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=1aU82OCB8EaU5gSyx1GLNfzRZ/n+CtM0wF3xQO3ltdE=; b=qSVc/DD17GWnUdCpaw7WaO089XVB4WI0aYdiodmu3f4mRuCbyMNJjLWac5g+UrKCQH z5WOU7kh32bdNH1BYvU5e73cwM1JmBOGIArhuhbVUZPeYPVjs7OhbIfQPSm06yXJmvZC 7MePrRJ/7paUPIdNOEjGgDt+YrxchIsvPmno26wEolNiHDFzqNalM2LxtzZhTPHmBoJg zlCMZ9qGohEvCxa25K/jTtMRzVF8icL/EeS3xumqm7Bi95oUXE+uABbAD+HAPAZ6W+Z0 Q22ZJV1TK8DE1kk4ypHu5Pqu3PS/UYih/I0c8u53EQvgweT2Wcg1dwoNOkCMJX9HTkNG E/EA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=1aU82OCB8EaU5gSyx1GLNfzRZ/n+CtM0wF3xQO3ltdE=; b=Y/uz6KLtEyuzGKYFFTl61eRdD1AdoNTpvh4zOQHoHtt8p6IwJsf1CpoSkCs8i5DfF/ 8qo0PUNhI86ZXkTtDC+o6TYG+zj9YBYWSvwY/MmS0V3zL5Z0yxzJ0l7WUqaeTIeafgC2 9r8npDpJH+IzTV6ZYCJakxYYA2GV6xHqT76Sc8qc5MzgDW+7Xoola5IkiJuOSC0kMqCE s9d7nytsmX5TqNQGiIH9wHHUK/c+Ph1xvTyHp73OyBTEQhoaiTXrhTYz4xHR7Gs2T/Wi NF0e2Ja+5ECv8fTjyaPZa0paxrmWYEBdfCPd4uaWBV9u5EiMgasXn+ffwZqs/ABQLb4N C9HA== X-Gm-Message-State: AHQUAubnFjkgtP0APMjgKRlHwBDSbMOiDguoHnD/f50wq48by3VyptzQ 81YX6EpWyTM6MgdxlsPwwJUoJA== X-Google-Smtp-Source: AHgI3IbVSKg4gdtbIp6JL/bIu4AfzpxP6z3ySoB1CaQgud8u8kuxTeg7pUq6c1WhDyxFvU9/cajSHQ== X-Received: by 2002:a5d:4985:: with SMTP id r5mr6191029wrq.90.1550927279831; Sat, 23 Feb 2019 05:07:59 -0800 (PST) Received: from clegane.local (189.126.130.77.rev.sfr.net. [77.130.126.189]) by smtp.gmail.com with ESMTPSA id i12sm7830746wrq.21.2019.02.23.05.07.58 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 23 Feb 2019 05:07:59 -0800 (PST) From: Daniel Lezcano To: tglx@linutronix.de Cc: linux-kernel@vger.kernel.org, Stuart Menefy , stable@vger.kernel.org, Marek Szyprowski , Kukjin Kim , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org (moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES), linux-samsung-soc@vger.kernel.org (moderated list:ARM/SAMSUNG EXYNOS ARM ARCHITECTURES) Subject: [PATCH 04/18] clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown Date: Sat, 23 Feb 2019 14:06:52 +0100 Message-Id: <20190223130707.16704-4-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190223130707.16704-1-daniel.lezcano@linaro.org> References: <20190223130707.16704-1-daniel.lezcano@linaro.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stuart Menefy When shutting down the timer, ensure that after we have stopped the timer any pending interrupts are cleared. This fixes a problem when suspending, as interrupts are disabled before the timer is stopped, so the timer interrupt may still be asserted, preventing the system entering a low power state when the wfi is executed. Signed-off-by: Stuart Menefy Reviewed-by: Krzysztof Kozlowski Tested-by: Marek Szyprowski Cc: # v4.3+ Signed-off-by: Daniel Lezcano --- drivers/clocksource/exynos_mct.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index 1e325f89d408..d55c30f6981d 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -411,6 +411,7 @@ static int set_state_shutdown(struct clock_event_device *evt) mevt = container_of(evt, struct mct_clock_event_device, evt); exynos4_mct_tick_stop(mevt); + exynos4_mct_tick_clear(mevt); return 0; } -- 2.17.1