Re: [PATCH v6 0/7] ZPODD patches

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On 09/13/2012 04:15 PM, Jack Wang wrote:
>>> For hard disk runtime power off, Is there (hardware?) requirement for
> hard
>>> drive to support similar feature?
>>
>> No requirement for hard drive, as it does not need to remote wake up
>> itself while powered off.
>>
>> Please note that there is a v7 sent yesterday, you may want to take a
>> look at that instead of v6.
>>
>> And the runtime power off of hard drive is dropped from that patch set,
>> I'll submit it in another patch set(pretty small changes needed).
>>
>> Thanks,
>> Aaron
> [Jack Wang] Thanks Aaron for quick replay, for disk runtime power off, will
> it   a different proach from block runtime power management patch set from
> Lin Ming? 

I suppose you mean the "block layer runtime pm" from Lin Ming?
No, they are different things.

That patch set introduced a mechanism to decide when a device can enter
runtime suspend based on block layer request, while my patch cares about
when it is runtime suspended, how to remove its power.

Thanks,
Aaron
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