Commit-ID: 77d57d1d8016696daaf5614c070ac01c9652f4ce
Gitweb: https://git.kernel.org/tip/77d57d1d8016696daaf5614c070ac01c9652f4ce
Author: Dmitry Osipenko <digetx@xxxxxxxxx>
AuthorDate: Mon, 3 Jun 2019 21:59:41 +0300
Committer: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
CommitDate: Tue, 25 Jun 2019 19:49:18 +0200
clocksource/drivers/tegra: Reset hardware state on init
Reset timer's hardware state to ensure that initially it is in a
predictable state.
Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
Acked-By: Peter De Schrijver <pdeschrijver@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
---
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 acd68c77fa91..3e4f12aee8df 100644
--- a/drivers/clocksource/timer-tegra20.c
+++ b/drivers/clocksource/timer-tegra20.c
@@ -123,6 +123,9 @@ 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);
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