diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2019-06-10 19:43:57 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2019-06-14 16:08:05 +0200 |
| commit | 38adabf512350630a19b8f1f37229e2c80266c45 (patch) | |
| tree | 8fade1d3b3373944fa28c5a1eefde90f9b44e8f3 | |
| parent | 1fefe1f724975e7b089e3b306aad661bb05b43b9 (diff) | |
clocksource/drivers/tegra: Set and use timer's period
The of_clk structure has a period field that is set up initially by
timer_of_clk_init(), that period value need to be adjusted for a case of
TIMER1-9 that are running at a fixed rate that doesn't match the clock's
rate. Note that the period value is currently used only by some of the
clocksource drivers internally and hence this is just a minor cleanup
change that doesn't fix anything.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
| -rw-r--r-- | drivers/clocksource/timer-tegra.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/clocksource/timer-tegra.c b/drivers/clocksource/timer-tegra.c index f172a57cc5fe..091b738ab99b 100644 --- a/drivers/clocksource/timer-tegra.c +++ b/drivers/clocksource/timer-tegra.c @@ -73,9 +73,9 @@ static int tegra_timer_shutdown(struct clock_event_device *evt) static int tegra_timer_set_periodic(struct clock_event_device *evt) { void __iomem *reg_base = timer_of_base(to_timer_of(evt)); + unsigned long period = timer_of_period(to_timer_of(evt)); - writel_relaxed(TIMER_PTV_EN | TIMER_PTV_PER | - ((timer_of_rate(to_timer_of(evt)) / HZ) - 1), + writel_relaxed(TIMER_PTV_EN | TIMER_PTV_PER | (period - 1), reg_base + TIMER_PTV); return 0; @@ -299,6 +299,7 @@ static int __init tegra_init_timer(struct device_node *np, bool tegra20, cpu_to->clkevt.rating = rating; cpu_to->clkevt.cpumask = cpumask_of(cpu); cpu_to->of_base.base = timer_reg_base + base; + cpu_to->of_clk.period = DIV_ROUND_UP(rate, HZ); cpu_to->of_clk.rate = rate; irq_set_status_flags(cpu_to->clkevt.irq, IRQ_NOAUTOEN); |