linux-kernel - Re: [linux-sunxi] Cedrus driver

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Message-ID: <20171128122648.akxe7ro2mxmliedw@flea.home>
Date:   Tue, 28 Nov 2017 13:26:48 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Thomas van Kleef <thomas@...sch.nl>
Cc:     Giulio Benetti <giulio.benetti@...ronovasrl.com>,
        Hans Verkuil <hverkuil@...all.nl>,
        Andreas Baierl <list@...reisrum.de>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        linux@...linux.org.uk, wens@...e.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Subject: Re: [linux-sunxi] Cedrus driver

On Tue, Nov 28, 2017 at 12:20:59PM +0100, Thomas van Kleef wrote:
> > So, I have been rebasing to 4.14.0 and have the cedrus driver working.
> I have pulled linux-mainline 4.14.0. Then pulled the requests2 branch from Hans
> Verkuil's media_tree. I have a patch available of the merge between these 2
> branches.
> After this I pulled the sunxi-cedrus repository from Florent Revests github. I
> believe this one is the same as the ones you are cloning right now.
> I have merged this and have a patch available for this as well.
> 
> So to summarize:
>  o pulled linux 4.14 from:
>     https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>  o pulled requests2 from:
>     https://git.linuxtv.org/hverkuil/media_tree.git?h=requests2
>     will be replaced with the work, when it is done, in:
>      https://git.linuxtv.org/hverkuil/media_tree.git?h=ctrl-req-v2
>  o pulled linux-sunxi-cedrus from:
>     https://github.com/FlorentRevest/linux-sunxi-cedrus
> 
>  o merged and made patch between linux4.14 and requests2
>  o merged and made patch with linux-sunxi-cedrus
>  o Verified that the video-engine is decofing mpeg-2 on the Allwinner A20.
> 
> So maybe if someone is interested in this, I could place the patches somewhere?
> Just let me know.

Please create a pull request on the github repo. The point we set it
up was to share code. Forking repos and so on is kind of pointless.

> It would be nice to be able to play a file, so I would have to prepare our
> custom player and make a patch between the current sunxi-cedrus-drv-video and
> the one on https://github.com/FlorentRevest/sunxi-cedrus-drv-video.
> So I will start with this if there is any interest.
> 
> Should I be working in sunxi-next I wonder?

I'd rather stick on 4.14. sunxi-next wouldn't bring any benefit, and
we want to provide something that works first, and always merging next
will always distract us from the actual code.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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