From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751812AbbEZXIU (ORCPT ); Tue, 26 May 2015 19:08:20 -0400 Received: from terminus.zytor.com ([198.137.202.10]:56047 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085AbbEZXIP (ORCPT ); Tue, 26 May 2015 19:08:15 -0400 Date: Tue, 26 May 2015 16:07:39 -0700 From: tip-bot for Alexandre Belloni Message-ID: Cc: hpa@zytor.com, alexandre.belloni@free-electrons.com, nicolas.ferre@atmel.com, boris.brezillon@free-electrons.com, maxime.ripard@free-electrons.com, linux-kernel@vger.kernel.org, daniel.lezcano@linaro.org, mingo@kernel.org, tglx@linutronix.de, sylvain.rochet@finsecur.com Reply-To: sylvain.rochet@finsecur.com, tglx@linutronix.de, maxime.ripard@free-electrons.com, boris.brezillon@free-electrons.com, nicolas.ferre@atmel.com, hpa@zytor.com, alexandre.belloni@free-electrons.com, daniel.lezcano@linaro.org, mingo@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <1421399151-26800-1-git-send-email-alexandre.belloni@free-electrons.com> References: <1421399151-26800-1-git-send-email-alexandre.belloni@free-electrons.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:timers/core] clockevents: Do not suspend/resume if unused Git-Commit-ID: ac34ad27fc160b5bd31c731cdaaf6e1d1890ccb2 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: ac34ad27fc160b5bd31c731cdaaf6e1d1890ccb2 Gitweb: http://git.kernel.org/tip/ac34ad27fc160b5bd31c731cdaaf6e1d1890ccb2 Author: Alexandre Belloni AuthorDate: Fri, 16 Jan 2015 10:05:51 +0100 Committer: Thomas Gleixner CommitDate: Wed, 27 May 2015 01:03:38 +0200 clockevents: Do not suspend/resume if unused There is no point in calling suspend/resume for unused clockevents as they are already stopped and disabled. This is really important for AT91 as the hardware is a trainwreck and takes ages to synchronize. Reported-by: Sylvain Rochet Signed-off-by: Alexandre Belloni Cc: Daniel Lezcano Cc: Nicolas Ferre Cc: Boris Brezillon Cc: Maxime Ripard Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1421399151-26800-1-git-send-email-alexandre.belloni@free-electrons.com Signed-off-by: Thomas Gleixner --- kernel/time/clockevents.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c index 4922f1b..2a5c369 100644 --- a/kernel/time/clockevents.c +++ b/kernel/time/clockevents.c @@ -638,7 +638,7 @@ void clockevents_suspend(void) struct clock_event_device *dev; list_for_each_entry_reverse(dev, &clockevent_devices, list) - if (dev->suspend) + if (dev->suspend && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->suspend(dev); } @@ -650,7 +650,7 @@ void clockevents_resume(void) struct clock_event_device *dev; list_for_each_entry(dev, &clockevent_devices, list) - if (dev->resume) + if (dev->resume && dev->mode != CLOCK_EVT_MODE_UNUSED) dev->resume(dev); }