From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760798AbcBYNij (ORCPT ); Thu, 25 Feb 2016 08:38:39 -0500 Received: from mail-wm0-f51.google.com ([74.125.82.51]:33345 "EHLO mail-wm0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760763AbcBYNiA (ORCPT ); Thu, 25 Feb 2016 08:38:00 -0500 From: Daniel Lezcano To: tglx@linutronix.de Cc: Viresh Kumar , Kukjin Kim , Krzysztof Kozlowski , linux-kernel@vger.kernel.org (open list:CLOCKSOURCE, CLOC...), linux-arm-kernel@lists.infradead.org (moderated list:ARM/SAMSUNG EXYNO...), linux-samsung-soc@vger.kernel.org (moderated list:ARM/SAMSUNG EXYNO...) Subject: [PATCH 9/9] clockevents/drivers/exynos_mct: Implement ->set_state_oneshot_stopped() Date: Thu, 25 Feb 2016 14:37:17 +0100 Message-Id: <1456407438-6131-9-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1456407438-6131-1-git-send-email-daniel.lezcano@linaro.org> References: <56CF00F6.9010301@linaro.org> <1456407438-6131-1-git-send-email-daniel.lezcano@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Viresh Kumar set_state_oneshot_stopped() is called by the clkevt core, when the next event is required at an expiry time of 'KTIME_MAX'. This normally happens with NO_HZ_{IDLE|FULL} in both LOWRES/HIGHRES modes. This patch makes the clockevent device to stop on such an event, to avoid spurious interrupts, as explained by: commit 8fff52fd5093 ("clockevents: Introduce CLOCK_EVT_STATE_ONESHOT_STOPPED state"). Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano --- drivers/clocksource/exynos_mct.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c index ff44082..be09bc0 100644 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@ -313,6 +313,7 @@ static struct clock_event_device mct_comp_device = { .set_state_periodic = mct_set_state_periodic, .set_state_shutdown = mct_set_state_shutdown, .set_state_oneshot = mct_set_state_shutdown, + .set_state_oneshot_stopped = mct_set_state_shutdown, .tick_resume = mct_set_state_shutdown, }; @@ -452,6 +453,7 @@ static int exynos4_local_timer_setup(struct mct_clock_event_device *mevt) evt->set_state_periodic = set_state_periodic; evt->set_state_shutdown = set_state_shutdown; evt->set_state_oneshot = set_state_shutdown; + evt->set_state_oneshot_stopped = set_state_shutdown; evt->tick_resume = set_state_shutdown; evt->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; evt->rating = 450; -- 1.9.1