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SubjectRE: [PATCH v1 3/3] ARM: tegra: cpuidle driver for tegra
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On Thu, Jan 26, 2012 at 21:52:03, Peter De Schrijver wrote:
[...]
> +static int tegra_idle_enter_lp3(struct cpuidle_device *dev,
> + struct cpuidle_driver *drv, int index)
> +{
> + ktime_t enter, exit;
> + s64 us;
> +
> + local_irq_disable();
> + local_fiq_disable();
> +
> + enter = ktime_get();
> +
> + tegra_cpu_wfi();
> +
> + exit = ktime_sub(ktime_get(), enter);
> + us = ktime_to_us(exit);
> +
> + local_fiq_enable();
> + local_irq_enable();
> +
> + dev->last_residency = us;
> +
> + return index;
> +}

You can probably drop local_irq_disable() and local_irq_enable().


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