[PATCH v6 09/11] firmware: xilinx: Add debugfs for clock control APIs

Sudeep Holla sudeep.holla at arm.com
Tue May 15 01:57:49 PDT 2018



On 14/05/18 20:18, Jolly Shah wrote:
> Hi Sudeep,

[..]

>> 
>> As I mentioned in earlier patch, I don't see the need for this
>> debugfs interface. Clock lay has read-only interface in debugfs
>> already. Also if you want to debug clocks, you can do so using the
>> driver which uses these clocks. Do you really want to manage clocks
>> in user-space ? The whole idea of EEMI kind of interface is to
>> abstract and hide the fine details even from non-trusted rich OS
>> like Linux kernel, but by providing this you are doing exactly
>> opposite.
> 
> No we don't want to manage clocks in user-space. This debugfs is
> meant for developer who wants to debug APIs behavior in case
> something doesn't work as expected. Debugfs should be off by default
> in production images.
> 

Good that it's not used in production image. The clock layer has
*sufficient* debugfs support that will *help in debugging*. So please
drop this Xilinx specific clock debugfs.

-- 
Regards,
Sudeep




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