On 2016년 03월 28일 11:54, MyungJoo Ham wrote:
>>
>> This patch adds the new DEVFREQ_TRANSITION_NOTIFIER notifier to send
>> the notification when the frequency of device is changed.
>> This notifier has two state as following:
>> - DEVFREQ_PRECHANGE : Notify it before chaning the frequency of device
>> - DEVFREQ_POSTCHANGE : Notify it after changed the frequency of device
>>
>> And this patch adds the resourced-managed function to release the resource
>> automatically when error happen.
>>
>> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
>> [m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
>> Tested-by: Markus Reichl <m.reichl@xxxxxxxxxxxxx>
>> Tested-by: Anand Moon <linux.amoon@xxxxxxxxx>
>> ---
>> drivers/devfreq/devfreq.c | 163 +++++++++++++++++++++++++++++++++++++++++++++-
>> include/linux/devfreq.h | 58 ++++++++++++++++-
>> 2 files changed, 219 insertions(+), 2 deletions(-)
>
> []
>
>> diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
>> index aa0b8424ebc3..152ea342529c 100644
>> --- a/include/linux/devfreq.h
>> +++ b/include/linux/devfreq.h
>> @@ -19,6 +19,13 @@
>>
>> #define DEVFREQ_NAME_LEN 16
>>
>> +/* DEVFREQ notifier interface */
>> +#define DEVFREQ_TRANSITION_NOTIFIER (0)
>> +
>> +/* Transition notifiers of DEVFREQ_TRANSITION_NOTIFIER */
>> +#define DEVFREQ_PRECHANGE (0)
>> +#define DEVFREQ_POSTCHANGE (1)
>> +
>> struct devfreq;
>>
>> /**
>> @@ -177,6 +184,13 @@ struct devfreq {
>> unsigned int *trans_table;
>> unsigned long *time_in_state;
>> unsigned long last_stat_updated;
>> +
>> + struct srcu_notifier_head transition_notifier_list;
>> +};
>
> Like other properties of struct devfreq, please add
> descriptions above. Other than that, it looks good.
OK. I was missing the description. I'll add it.
Best Regards,
Chanwoo Choi
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