Re: [PATCH 0/2] Allow disabling all native fbdev drivers and only keeping DRM emulation

Andy Shevchenko
2023-06-30T17:31:29Z

On Fri, Jun 30, 2023 at 12:51:02AM +0200, 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

How does simpledrm works with earlycon=efi?

> now disable them. But it would simplify the config a lot fo have a single
> Kconfig symbol to disable all fbdev drivers.
>
> I've build 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 1/2 makes the CONFIG_FB split that is mentioned above and patch 2/2
> makes DRM fbdev emulation depend on the new FB_CORE symbol instead of FB.

--
With Best Regards,
Andy Shevchenko