Re: [PATCHv2 06/10] mmc: core: move the cookie's enum values from sdhci.h to mmc.h

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On 11/16/2016 05:28 PM, Adrian Hunter wrote:
> On 16/11/16 10:25, Jaehoon Chung wrote:
>> On 11/16/2016 05:09 PM, Adrian Hunter wrote:
>>> On 16/11/16 09:53, Jaehoon Chung wrote:
>>>> Added Adrian for sdhci.h
>>>>
>>>> On 11/15/2016 07:12 PM, Jaehoon Chung wrote:
>>>>> It's not for only sdhci controller.
>>>>> So it can be moved from sdhci.h to mmc.h. And renamed from sdhci_cookie
>>>>> to mmc_cookie.
>>>
>>> The cookie is currently host private data, so I don't understand the
>>> motivation behind this.
>>
>> dwmmc controller can also use the data->host_cookie. because it's working with post/pre_req().
>>
>> So i think it can be used about both sdhci and dwmmc.
>> Is there no reason that add the private dwmmc data?
>>
>> With these cookie value, update the dwmmc controller for post/pre_req().
>>
>> https://patchwork.kernel.org/patch/9429287/
> 
> So why not define dwmmc cookies in dw_mmc.c ?

Because I understood that it's not sdhci specific cookies. It can be used generally, doesn't?

Role of post/pre_req() in host controller is the doing dma_map/unmap().
And data's cookies only needs to notice whether dma is mapped or unmapped, etc.

Well, If it's really private value and should be added other cookies values in future, i will put cookies in dw_mmc.h.
(it should be duplicated in sdhci and dwmmc.)

Best Regards,
Jaehoon Chung

> 
> 
> 
> 

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