Hi Srinivas,

> On May 26, 2015, at 12:12 , Srinivas Kandagatla 
> <srinivas.kandaga...@linaro.org> wrote:
> 
> Hi Pantelis,
> 
> On 25/05/15 17:51, Pantelis Antoniou wrote:
>> Hi Srinivas,
>> 
>>> On May 21, 2015, at 19:42 , Srinivas Kandagatla 
>>> <srinivas.kandaga...@linaro.org> wrote:
>>> 
>>> Thankyou all for providing inputs and comments on previous versions of this 
>>> patchset.
>>> Here is the v5 of the patchset addressing all the issues raised as
>>> part of previous versions review.
>>> 
>> 
>>> 
>> 
>> [snip]
>> 
>> I tried to use the updated patchset with my at24 & beaglebone capemanager 
>> patches.
> Thanks for trying it out and migrating at24 to it.
> 

Don’t mention it…

>> 
>> I have a big problem with the removal of the raw of_* access APIs.
> Ok,
>> 
>> Take for instance the case where you have multiple slot accessing different 
>> EEPROMs.
>> 
>>> slots {
>>>     slot@0 {
>>>             eeprom = <&cape0_data>;
>>>     };
>>> 
>>>     slot@1 {
>>>             eeprom = <&cape1_data>;
>>>     };
>>> };
> 
> Can I ask you why should the slots be in sub-nodes?
> Do you expect to have more properties associated with each slot in future?
> Or is it just to get hold of eeprom data?
> 

For now I don’t have any more properties besides the eeprom phandle.
I’ve reworked capemanager to work with the API as it is, but it’s not very 
intuitive IMHO.

The problem is that I have both the baseboard and the slot eeproms in a single 
property list.

If more per-slot properties are required, I’ll have to add again the slots node 
and
then the nvmem eeprom handles would stick out like a sore thumb.

>> 
>> In that case there is no per-device node mapping; it’s a per-sub node.
>> 
>> For now I’m exporting the of_* accessors again, please consider exposing the 
>> of_* API again.
> Sure, we can export of_nvmem_cell_get symbol for usecases like this.
> 
> Having said that, I got one comment on the way the nvmem is used in your 
> case. You should try to use nvmem_device_get() and then use 
> nvmem_device_read() apis, These apis are for consumers like this one. The 
> advantage of this would be you do not need read and store all data in the 
> driver and parse them internally. Basically your ee_field_get would just do 
> nvmem_device_read(); Does it make sense?
> 

Hmm, good idea; I’ll give it a shot.

> We can work on how to get the of_*based once you decide to move to this api.
> 
> 

OK, thanks a lot for taking the time to think about this Srinivas.

> 
> --srini
>> 

Regards

— Pantelis

>>> --
>>> 1.9.1
>>> 
>> 
>> Regards
>> 
>> — Pantelis
>> 
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