Re: [PATCH v3 1/3] drm/amd/display: Add module parameter for freesync video mode

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On Thu, 2021-01-14 at 11:14 +0200, Pekka Paalanen wrote:
> 
> Hi,
> 
> please document somewhere that ends up in git history (commit
> message,
> code comments, description of the parameter would be the best but
> maybe
> there isn't enough space?) what Christian König explained in
> 
>  
> https://lists.freedesktop.org/archives/dri-devel/2020-December/291254.html
> 
> that this is a stop-gap feature intended to be removed as soon as
> possible (when a better solution comes up, which could be years).
> 
> So far I have not seen a single mention of this intention in your
> patch
> submissions, and I think it is very important to make known.

Hi,

Thanks for the headsup, I shall add the relevant info in the next
verison.

> 
> I also did not see an explanation of why this instead of
> manufacturing
> these video modes in userspace (an idea mentioned by Christian in the
> referenced email). I think that too should be part of a commit
> message.

This is an opt-in feature, which shall be superseded by a better
solution. We also add a set of common modes for scaling similarly.
Userspace can still add whatever mode they want. So I dont see a reason
why this cant be in the kernel.

--

Regards,
Aurabindo Pillai

> 
> 
> Thanks,
> pq


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