[RFC PATCH 1/8] ARM: Add commonly used cpuidle init code
broonie at opensource.wolfsonmicro.com
Tue Dec 6 06:47:37 EST 2011
On Mon, Dec 05, 2011 at 10:38:04PM -0600, Robert Lee wrote:
> +static int arm_enter_idle(struct cpuidle_device *dev,
> + struct cpuidle_driver *drv, int index)
> + ktime_t time_start, time_end;
> + local_irq_disable();
> + local_fiq_disable();
Apart from the IRQ disables this code isn't really ARM specific at all
and I bet it'd be useful on a lot of other architectures.
> + time_start = ktime_get();
> + index = mach_cpuidle(dev, drv, index);
Given the number of systems that at least start off with just a call to
cpu_do_idle() here shouldn't we have a defualt mach_cpu_idle() which
does that? Currently the code requires the caller to provide one.
Please CC me on any iterations, I've got a S3C64xx implementation I'm
pushing which could probably use this.
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