Re: [PATCH 5/5][RFC] cpuidle : add cpuidle_register_states function

[Daniel Lezcano <daniel.lezcano@linaro.org>]

On 09/03/2012 03:22 PM, Peter De Schrijver wrote:
> On Wed, Jul 25, 2012 at 12:46:02PM +0200, Daniel Lezcano wrote:
>> The tegra3 and big.LITTLE architecture have different cpu latencies.
>> This API allows to specify a different cpu latency for a specific cpu.
>>
>> With the previous patches, we use the per cpuidle device states pointer,
>> this function overrides this pointer.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
>> ---
>>  drivers/cpuidle/cpuidle.c |   17 +++++++++++++++++
>>  include/linux/cpuidle.h   |   10 +++++++---
>>  2 files changed, 24 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
>> index 199878a..3b21b68 100644
>> --- a/drivers/cpuidle/cpuidle.c
>> +++ b/drivers/cpuidle/cpuidle.c
>> @@ -456,6 +456,23 @@ void cpuidle_unregister_device(struct cpuidle_device *dev)
>>  
>>  EXPORT_SYMBOL_GPL(cpuidle_unregister_device);
>>  
>> +int cpuidle_register_states(struct cpuidle_device *dev,
>> +			    struct cpuidle_state *states,
>> +			    int state_count)
>> +{
>> +	if (!dev || !states)
>> +		return -EINVAL;
>> +
>> +	if (state_count <= 0)
>> +		return -EINVAL;
>> +
>> +	dev->states = states;
>> +	dev->state_count = state_count;
>> +
>> +	return 0;
>> +}
>> +EXPORT_SYMBOL_GPL(cpuidle_register_state);
>> +
>>  #ifdef CONFIG_SMP
>>  
> 
> Looks good... apart from the fact that the function definition says
> cpuidle_register_stateS and the exported symbol is cpuidle_register_state...


Ok, fixed. Thanks !

  -- Daniel


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