From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754173AbcEYJuj (ORCPT ); Wed, 25 May 2016 05:50:39 -0400 Received: from mail-pa0-f68.google.com ([209.85.220.68]:35944 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753190AbcEYJue (ORCPT ); Wed, 25 May 2016 05:50:34 -0400 From: Caesar Wang To: daniel.lezcano@linaro.org, Heiko Stuebner Cc: dianders@chromium.org, briannorris@google.com, smbarber@google.com, linux-rockchip@lists.infradead.org, Thomas Gleixner , cf@rock-chips.com, huangtao@rock-chips.com, Caesar Wang , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/5] clocksource: rockchip: add dynamic irq flag to the timer Date: Wed, 25 May 2016 17:50:00 +0800 Message-Id: <1464169802-6033-4-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1464169802-6033-1-git-send-email-wxt@rock-chips.com> References: <1464169802-6033-1-git-send-email-wxt@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Huang Tao The rockchip timer is broadcast timer. Add CLOCK_EVT_FEAT_DYNIRQ flag and set cpumask to all cpu to save power by avoid unnecessary wakeups and IPIs. Signed-off-by: Huang Tao Cc: Daniel Lezcano Cc: Thomas Gleixner Cc: Heiko Stuebner Tested-by: Jianqun Xu Signed-off-by: Caesar Wang --- drivers/clocksource/rockchip_timer.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c index b93fed6..f3dfb1a 100644 --- a/drivers/clocksource/rockchip_timer.c +++ b/drivers/clocksource/rockchip_timer.c @@ -150,12 +150,13 @@ static void __init rk_timer_init(struct device_node *np) } ce->name = TIMER_NAME; - ce->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT; + ce->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_DYNIRQ; ce->set_next_event = rk_timer_set_next_event; ce->set_state_shutdown = rk_timer_shutdown; ce->set_state_periodic = rk_timer_set_periodic; ce->irq = irq; - ce->cpumask = cpumask_of(0); + ce->cpumask = cpu_all_mask; ce->rating = 250; ret = request_irq(irq, rk_timer_interrupt, IRQF_TIMER, TIMER_NAME, ce); -- 1.9.1