[RFC][PATCH 4/9] ARM: OMAP3: define cpuidle statically
Daniel Lezcano
daniel.lezcano at linaro.org
Fri Mar 23 08:41:48 EDT 2012
On 03/23/2012 01:35 PM, Jean Pihet wrote:
> On Fri, Mar 23, 2012 at 10:26 AM, Daniel Lezcano
> <daniel.lezcano at linaro.org> wrote:
>> Use the new cpuidle API and define in the driver the states.
>>
>> Signed-off-by: Daniel Lezcano<daniel.lezcano at linaro.org>
>> ---
[ ... ]
>> /*
>> * Erratum i583: implementation for ES rev< Es1.2 on 3630. We cannot
> C7 is enabled only if the errata does not apply.
> This causes a problem with the statically defined C-states and also
> with the per C-state sysfs disable knob. A consistency check should be
> performed before trying to enter a state.
In the patch 5/9, I decrement the state_count if the errata applies. I
believe it is still compatible with the static C-states.
>> @@ -338,7 +372,6 @@ int __init omap3_idle_init(void)
>> drv->state_count = OMAP3_NUM_STATES;
>> cpuidle_register_driver(&omap3_idle_driver);
>>
>> - dev->state_count = OMAP3_NUM_STATES;
>> if (cpuidle_register_device(dev)) {
>> printk(KERN_ERR "%s: CPUidle register device failed\n",
>> __func__);
>> --
>> 1.7.5.4
>>
>
> Thanks!
> Jean
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
More information about the linux-arm-kernel
mailing list