Re: [PATCH V8 2/2] mmc: OCTEON: Add host driver for OCTEON MMC controller.

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On 23 August 2016 at 21:59, David Daney <ddaney@xxxxxxxxxxxxxxxxxx> wrote:
> On 08/23/2016 12:46 PM, Ulf Hansson wrote:
>>
>> On 23 August 2016 at 19:41, David Daney <ddaney@xxxxxxxxxxxxxxxxxx> wrote:
>>>
>>> On 08/23/2016 07:53 AM, Ulf Hansson wrote:
>>>>
>>>>
>>>> On 12 July 2016 at 20:18, Steven J. Hill <steven.hill@xxxxxxxxxx> wrote:
>>>
>>>
>>> [...]
>>>
>>>>> +#include <asm/byteorder.h>
>>>>> +#include <asm/octeon/octeon.h>
>>>>
>>>>
>>>>
>>>
>>> OK, we will duplicate any needed definitions from octeon.h into the
>>> driver
>>> source file.
>>
>>
>> Why can't you share it via a platfrom data header at
>> include/linux/platform_data/* ?
>>
>
> It isn't "platform_data", it is register layout definitions (thousands of
> lines of them), so I don't think it it appropriate to place in
> include/linux.
>
> I think the cleanest approach is to put the register definitions in the
> driver file, which is the only user, and delete the definition header files
> in arch/mips/include/...
>
> David.

I guess we are not looking at the same header file. :-)

arch/mips/include/asm/octeon/octeon.h contains declarations of
functions/structs and even globally exported variables.

At a closer look this header need a serious cleanup anyway...

* Some of the functions/structs are not used or even implemented.
** Some of the functions/structs is used only internally by the SoC
specific code, thus should be moved to a local header.
*** Some of the functions/structs/exported variables is being used by
several clients. The cavium mmc driver is only one of them.

Kind regards
Uffe




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