linux-kernel - Re: [PATCH 0/8] fbdev: sm712fb: implement 2D acceleration w/ cleanups.

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Date:   Tue, 5 Feb 2019 10:02:46 +0100
From:   Daniel Vetter <daniel@...ll.ch>
To:     Tom Li <tomli@...li.me>
Cc:     Daniel Vetter <daniel@...ll.ch>, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sudip Mukherjee <sudipm.mukherjee@...il.com>,
        Teddy Wang <teddy.wang@...iconmotion.com>
Subject: Re: [PATCH 0/8] fbdev: sm712fb: implement 2D acceleration w/
 cleanups.

On Tue, Feb 05, 2019 at 06:06:50AM +0800, Tom Li wrote:
> > Since you care about this driver, considered converting it to a drm
> > display driver? You can still have all the acceleration and stuff, the
> > fbdev compat mode in drm is rather flexible.
> > -Daniel
> 
> Yes, I know fbdev is now in maintenance-only mode, reimplementing it
> on top of DRM is on my roadmap, including rewriting a saner version
> of the modesetting code. The current version is beyond repair. I'll
> start working on it once I managed to purchase the hardware for testing.
> 
> But currently my objectively is to have something usable during the
> transitional period. The major user of the chipset was Yeeloong 8089D
> laptop - a choice for many non-x86 and MIPS hobbyists for experimentation.
> Getting the current version of the patch merged would solve the immediate
> usability issues, and then trying to get some platform drivers merged.
> And after completing the preliminary upstreaming process, since then,
> can start working on a DRM version of the driver, and possibly eventually
> remove the fbdev version of sm712fb entirely. 
> 
> The 2D acceleration implementation is strictly no more than 200 lines,
> the vast majority of the code insertions are comments and documentation
> changes ranting about the known issues of the driver/hardware, nothing
> non-trivial is added and I think the changeset is manageable and would
> not be a burden for the fbdev maintainers, and I can grarantee that I will
> not add any other new features to this driver.

Awesome, and I think as a gradual plan this makes tons of sense.

Cheers, Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch