On Thursday 18 July 2013 11:54 AM, Greg KH wrote:
> On Thu, Jul 18, 2013 at 11:33:17AM +0530, Kishon Vijay Abraham I wrote:
>>>> Wanted to group all the PHY drivers to be used by different subsystems
>>>> (SATA/USB/PCIE/HDMI/VIDEO) into a single entity. There were some comments 
>>>> in my
>>>> initial version [3] on using a bus_type instead of class but then it was
>>>> decided to go with class itself.
>>>>
>>>> [3] -> http://lkml.indiana.edu/hypermail/linux/kernel/1302.2/01389.html
>>>
>>> Ok, but what does the class usage get you?
>>
>> hmm.. actually I use class only to iterate through the list of devices in 
>> *phy*
>> class which could very well be implemented using list. Just that I wont have 
>> a
>> /sys/class/phy/ entry to find the list of phys added in the system. I dont
>> think I want to add any other stuff to expose to the user space at this point
>> of time.
>>>
>>>>> When modifying/adding new sysfs stuff, you need a Documentation/ABI/
>>>>> entry as well.
>>>>
>>>> I'm not actually adding any new sysfs entry other than what a 
>>>> *class_create*
>>>> must have created. Do I need to add one for that?
>>>
>>> If you are not creating anything in sysfs at all, why use the driver
>>> model?  (hint, I think you need to do something here to justify it...)
>>
>> Well.. it helps me to use pm_runtime to enable clocks utilizing the
>> parent-child relationship.
> 
> Ok, that's a good reason for this, nevermind then.  Care to send the
> latest patches you have in emails so I can review them?

Sure.

Thanks
Kishon
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