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Re: No more new fbdev drivers, please

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Hello,

On Thu, 24 Sep 2015 15:27:01 +0300, Tomi Valkeinen wrote:

> fbdev is (more or less) maintained, but it's a deprecated framework. All
> new Linux display drivers should be done on DRM.
> 
> So let's not add any more new fbdev drivers.
> 
> I will continue to maintain the current fbdev drivers, and I don't mind
> adding some new features to those current drivers, as long as the amount
> of code required to add the features stays sensible.
> 
> I see we have three fbdev drivers in staging: xgifb, fbtft and sm750fb,
> and the question is what to do with those.
> 
> xgifb was added in 2010, and is still in staging.
> 
> fbtft looks like maybe some kind of framework on top of fbdev, with
> fbtft specific subdrivers... I didn't look at it in detail, but my gut
> says "never".

fbtft mainly drives some very simple I2C-based or SPI-based displays,
and DRM is I believe overkill for such displays. Last time I talked
with Laurent Pinchart about such drivers, I believe he said that such
simple drivers could probably continue to use the fbdev subsystem.

Or are there some plans to make the writing of DRM drivers for very
simple/trivial devices a bit simpler?

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Thread

No more new fbdev drivers, please Tomi Valkeinen <tomi.valkeinen@ti.com> - 2015-09-24 14:30 +0200
  Re: No more new fbdev drivers, please Thomas Petazzoni <thomas.petazzoni@free-electrons.com> - 2015-09-24 14:50 +0200
    Re: No more new fbdev drivers, please Austin S Hemmelgarn <ahferroin7@gmail.com> - 2015-09-24 17:30 +0200
      Re: No more new fbdev drivers, please Alex Deucher <alexdeucher@gmail.com> - 2015-09-24 17:40 +0200
      Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-24 18:00 +0200
        Re: No more new fbdev drivers, please Austin S Hemmelgarn <ahferroin7@gmail.com> - 2015-09-24 18:20 +0200
        Re: No more new fbdev drivers, please Ondrej Zary <linux@rainbow-software.org> - 2015-09-24 19:20 +0200
          Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-24 20:10 +0200
    Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-24 17:30 +0200
      Re: No more new fbdev drivers, please Geert Uytterhoeven <geert@linux-m68k.org> - 2015-09-26 10:30 +0200
        Re: No more new fbdev drivers, please Alex Deucher <alexdeucher@gmail.com> - 2015-09-26 19:10 +0200
          Re: No more new fbdev drivers, please Geert Uytterhoeven <geert@linux-m68k.org> - 2015-09-26 20:10 +0200
            Re: No more new fbdev drivers, please David Herrmann <dh.herrmann@gmail.com> - 2015-09-26 20:20 +0200
              Re: No more new fbdev drivers, please Geert Uytterhoeven <geert@linux-m68k.org> - 2015-09-26 20:50 +0200
                Re: No more new fbdev drivers, please Rob Clark <robdclark@gmail.com> - 2015-09-26 22:50 +0200
                Re: No more new fbdev drivers, please Dave Airlie <airlied@gmail.com> - 2015-09-27 00:00 +0200
                Re: No more new fbdev drivers, please Emil Velikov <emil.l.velikov@gmail.com> - 2015-09-30 14:00 +0200
              Re: No more new fbdev drivers, please Gerd Hoffmann <kraxel@redhat.com> - 2015-09-28 09:50 +0200
                Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-28 14:40 +0200
                Re: No more new fbdev drivers, please Gerd Hoffmann <kraxel@redhat.com> - 2015-09-29 10:30 +0200
                Re: No more new fbdev drivers, please Laurent Pinchart <laurent.pinchart@ideasonboard.com> - 2015-09-29 10:40 +0200
            Re: No more new fbdev drivers, please Bernie Thompson <bernie@plugable.com> - 2015-09-28 23:00 +0200
            Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-29 09:10 +0200
  Re: No more new fbdev drivers, please Aaro Koskinen <aaro.koskinen@iki.fi> - 2015-09-25 11:00 +0200
    Re: No more new fbdev drivers, please Ondrej Zary <linux@rainbow-software.org> - 2015-09-25 13:10 +0200
  Re: No more new fbdev drivers, please Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2015-09-26 09:20 +0200
    Re: No more new fbdev drivers, please Ilia Mirkin <imirkin@alum.mit.edu> - 2015-09-26 09:40 +0200
  Re: No more new fbdev drivers, please Noralf Trønnes <noralf@tronnes.org> - 2015-09-27 15:20 +0200
    Re: No more new fbdev drivers, please Emil Velikov <emil.l.velikov@gmail.com> - 2015-09-27 18:10 +0200
      Re: No more new fbdev drivers, please Noralf Trønnes <noralf@tronnes.org> - 2015-09-29 01:00 +0200
        Re: No more new fbdev drivers, please Daniel Vetter <daniel@ffwll.ch> - 2015-09-29 09:10 +0200

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