Re: No more new fbdev drivers, please

From	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Newsgroups	linux.kernel
Subject	Re: No more new fbdev drivers, please
Date	2015-09-26 09:20 +0200
Message-ID	<qcRW2-1mS-1@gated-at.bofh.it> (permalink)
References	<qcdOV-2V8-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Thu, Sep 24, 2015 at 03:27:01PM +0300, Tomi Valkeinen wrote:
> Hi all,
> 
> fbdev is (more or less) maintained, but it's a deprecated framework. All
> new Linux display drivers should be done on DRM.
<snip>
> 
> SM750 hardware seems to support multiple outputs, hardware overlays, 2D
> accelerator... I think it's pointless to write an fbdev driver for such
> a HW, as it's not possible to use those features with fbdev (without
> custom API).
Yes, it supports these and even SM712 which was recently moved out of
staging to fbdev area (which is the main reason that this thread
started) also supports dual display and 2D acceleration but those
features are not yet done in that driver.
SM750 will also have its code cleaned in few months so that it will be
ready to be moved out of staging. Right now we only have the framebuffer
driver and this hardware is being used in many laptops and notebooks. As
of now drm driver is not there for both SM712 and SM750. So then what
happens after SM750 is ready to be moved out? Will it be accepted in
fbdev or it will have to stay in staging untill a drm driver is ready?

BTW, I had a doubt about drm drivers. Is there any library or test suite
to test the driver? I am almost halfway in making a KMS driver for SM712
but still don't know how to test it properly. I was thinkig of asking
Daniel offlist but since this thread came up so asking here.

regards
sudip
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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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