linux-kernel - [PATCH 2/5] clocksource: rockchip: remove unnecessary clear irq before request

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Message-Id: <1464169802-6033-3-git-send-email-wxt@rock-chips.com>
Date:	Wed, 25 May 2016 17:49:59 +0800
From:	Caesar Wang <wxt@...k-chips.com>
To:	daniel.lezcano@...aro.org, Heiko Stuebner <heiko@...ech.de>
Cc:	dianders@...omium.org, briannorris@...gle.com, smbarber@...gle.com,
	linux-rockchip@...ts.infradead.org,
	Thomas Gleixner <tglx@...utronix.de>, cf@...k-chips.com,
	huangtao@...k-chips.com, Caesar Wang <wxt@...k-chips.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/5] clocksource: rockchip: remove unnecessary clear irq before request_irq

From: Huang Tao <huangtao@...k-chips.com>

rk_timer_interrupt_clear and rk_timer_disable is unnecessary before
request_irq. Timer should keep disabled before booting Linux.

Signed-off-by: Huang Tao <huangtao@...k-chips.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Heiko Stuebner <heiko@...ech.de>
Tested-by: Jianqun Xu <jay.xu@...k-chips.com>
Signed-off-by: Caesar Wang <wxt@...k-chips.com>
---

 drivers/clocksource/rockchip_timer.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
index b991b28..b93fed6 100644
--- a/drivers/clocksource/rockchip_timer.c
+++ b/drivers/clocksource/rockchip_timer.c
@@ -158,9 +158,6 @@ static void __init rk_timer_init(struct device_node *np)
 	ce->cpumask = cpumask_of(0);
 	ce->rating = 250;
 
-	rk_timer_interrupt_clear(ce);
-	rk_timer_disable(ce);
-
 	ret = request_irq(irq, rk_timer_interrupt, IRQF_TIMER, TIMER_NAME, ce);
 	if (ret) {
 		pr_err("Failed to initialize '%s': %d\n", TIMER_NAME, ret);
-- 
1.9.1