From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: [PATCH v3 3/8] clocksource/drivers/tegra: Reset hardware state on init Date: Fri, 24 May 2019 18:32:48 +0300 Message-ID: <20190524153253.28564-4-digetx@gmail.com> References: <20190524153253.28564-1-digetx@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190524153253.28564-1-digetx@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Daniel Lezcano , Thomas Gleixner , Joseph Lo , Thierry Reding , Jonathan Hunter , Peter De Schrijver Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Nicolas Chauvet List-Id: linux-tegra@vger.kernel.org Reset timer's hardware state to ensure that initially it is in a predictable state. Signed-off-by: Dmitry Osipenko --- drivers/clocksource/timer-tegra20.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clocksource/timer-tegra20.c b/drivers/clocksource/timer-tegra20.c index 57e7aa2b80a3..739f83fdb318 100644 --- a/drivers/clocksource/timer-tegra20.c +++ b/drivers/clocksource/timer-tegra20.c @@ -132,6 +132,9 @@ static int tegra_timer_setup(unsigned int cpu) { struct timer_of *to = per_cpu_ptr(&tegra_to, cpu); + writel(0, timer_of_base(to) + TIMER_PTV); + writel(TIMER_PCR_INTR_CLR, timer_of_base(to) + TIMER_PCR); + irq_force_affinity(to->clkevt.irq, cpumask_of(cpu)); enable_irq(to->clkevt.irq); -- 2.21.0