[PATCH v2] PCI: dra7xx: Fix reset behaviour

[Luca Ceresoli]

Hi Pali,

On 22/06/21 13:06, Pali Rohár wrote:
> Hello!
> 
> On Tuesday 22 June 2021 12:57:22 Luca Ceresoli wrote:
>> Nothing happened after a few weeks... I understand that knowing the
>> correct reset timings is relevant, but unfortunately I cannot help much
>> in finding out the correct values.
>>
>> However I'm wondering what should happen to this patch. It *does* fix a
>> real bug, but potentially with an incorrect or non-optimal usleep range.
>> Do we really want to ignore a bugfix because we are not sure about how
>> long this delay should be?
> 
> As there is no better solution right now, I'm fine with your patch. But
> patch needs to be approved by Lorenzo, so please wait for his final
> answer.
> 
> I would suggest to add a comment for call "usleep_range(1000, 2000);"
> that you have chosen some "random" values which worked fine on your
> setup and that they fix mentioned bug. Comment just to mark this sleep
> code that is suboptimal / not-so-correct and to prevent other people to
> copy+paste this code into other (new) drivers...

Sure, good idea.

I'm following this thread and will send v3 after a direction is agreed upon.

-- 
Luca