linux-kernel - Re: [PATCH 2/2] Revert "fbcon: Disable accelerated scrolling"

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Date:   Mon, 24 Jan 2022 12:28:52 +0100
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     Helge Deller <deller@....de>, Gerd Hoffmann <kraxel@...hat.com>
Cc:     Thomas Zimmermann <tzimmermann@...e.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-fbdev@...r.kernel.org, Sven Schnelle <svens@...ckframe.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Ilia Mirkin <imirkin@...m.mit.edu>,
        Tomi Valkeinen <tomi.valkeinen@...com>,
        dri-devel@...ts.freedesktop.org,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Pavel Machek <pavel@....cz>, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Sam Ravnborg <sam@...nborg.org>, Claudio Suarez <cssk@...-c.es>
Subject: Re: [PATCH 2/2] Revert "fbcon: Disable accelerated scrolling"

[snip]

> 
> What about this proposal:
> a) adding a Kconfig option like:
>    CONFIG_FB_DRIVERS - enable if you need the fbdev drivers. For DRM-only this should be disabled.
> b) Add to every native fbdev driver a "depends on FB_DRIVERS" in the Kconfig files.
> c) That way we can use "#if defined(CONFIG_FB_DRIVERS).." to exclude code in fbcon which
>    isn't needed by DRM.
>

I proposed something similar in:

https://lore.kernel.org/lkml/20210827100027.1577561-1-javierm@redhat.com/t/

Best regards,
-- 
Javier Martinez Canillas
Linux Engineering
Red Hat