Re: [PATCH v5 0/4] Allow disabling all native fbdev drivers and only keeping DRM emulation

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On Fri, Jul 14, 2023, at 19:16, Javier Martinez Canillas wrote:
> This patch series splits the fbdev core support in two different Kconfig
> symbols: FB and FB_CORE. The motivation for this is to allow CONFIG_FB to
> be disabled, while still having the the core fbdev support needed for the
> CONFIG_DRM_FBDEV_EMULATION to be enabled. The motivation is automatically
> disabling all fbdev drivers instead of having to be disabled individually.
>
> The reason for doing this is that now with simpledrm, there's no need for
> the legacy fbdev (e.g: efifb or vesafb) drivers anymore and many distros
> now disable them. But it would simplify the config a lot fo have a single
> Kconfig symbol to disable all fbdev drivers.
>
> I've built tested with possible combinations of CONFIG_FB, CONFIG_FB_CORE,
> CONFIG_DRM_FBDEV_EMULATION and CONFIG_FB_DEVICE symbols set to 'y' or 'n'.
>
> Patch #1 moves the auxdisplay drivers to "Graphics support" Kconfig menu,
> patch #2 moves the core fbdev Kconfig symbols to a separate Kconfig file,
> patch #3 does the FB symbol split and introduces the FB_CORE symbol and
> finally patch #4 makes the DRM symbol to select FB_CORE if the DRM fbdev
> emualtion support was enabled.
>
> Since this series touches three subsystems (auxdisplay, fbdev and DRM),
> I would like to merge it through DRM with the acks of these maintainers.
>
> This is a v5 of the patch-set that addresses issues pointed out by Arnd
> Bergmann, Thomas Zimmermann and Geert Uytterhoeven in the previous v4:
>
> https://lists.freedesktop.org/archives/dri-devel/2023-July/411842.html

Looks all good to me, except for two minor things I found in build testing
and replied to separately. With those fixed:

Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
Tested-by: Arnd Bergmann <arnd@xxxxxxxx>



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