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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 70EA7C43381 for ; Fri, 22 Mar 2019 11:36:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4095C21916 for ; Fri, 22 Mar 2019 11:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553254605; bh=zIf3H3NQHQ/V8DZP6agMe5ctNOflHsJP6oqSOaY1qnE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=jWp6aiNRvjHMwLXSK1O52RTl4D2bZAPyCjXTl/nEoQJK63poNPee2VW+CxSosFUto 7j3TiJTWD8fGBFv8X5vt1tLJ15aFaeBW8e+JjrsKQn9h9fC6/hb3OAkd2s7lfbF1N8 dAvW6unCHboYCVgiuplUmmZ2jmP3oJsf1iMW6Nj8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730745AbfCVLgn (ORCPT ); Fri, 22 Mar 2019 07:36:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:38016 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730729AbfCVLgi (ORCPT ); Fri, 22 Mar 2019 07:36:38 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E75B2082C; Fri, 22 Mar 2019 11:36:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553254597; bh=zIf3H3NQHQ/V8DZP6agMe5ctNOflHsJP6oqSOaY1qnE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Q67MS+sTqD2uCmS7PhZN+q34xKh5Ug6Va3wFT8FbcHQ/jJtTUrBF8BZZVWSpqb34p G8z7mtcHyVcL0ZsvCXKbwsDm2l5218Gr1F2Z4BqLj8fy5dNu5Uu4WEN7T9aYKrysIW 7wsST9Tvv2/iQ3HJYdclJipq3l6txENb9LzOXKwE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stuart Menefy , Krzysztof Kozlowski , Marek Szyprowski , Daniel Lezcano Subject: [PATCH 4.4 185/230] clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown Date: Fri, 22 Mar 2019 12:15:23 +0100 Message-Id: <20190322111249.763966401@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190322111236.796964179@linuxfoundation.org> References: <20190322111236.796964179@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stuart Menefy commit d2f276c8d3c224d5b493c42b6cf006ae4e64fb1c upstream. 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 Signed-off-by: Greg Kroah-Hartman --- drivers/clocksource/exynos_mct.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -402,6 +402,7 @@ static int set_state_shutdown(struct clo mevt = container_of(evt, struct mct_clock_event_device, evt); exynos4_mct_tick_stop(mevt); + exynos4_mct_tick_clear(mevt); return 0; }