linux-kernel - Re: No more new fbdev drivers, please

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Message-ID: <CAMuHMdWx1Fpf9FJ1wkc1_qmrhJb-k+MFui5EwsBx_-3jVdam+w@mail.gmail.com>
Date:	Sat, 26 Sep 2015 11:03:17 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Kamil Lulko <kamil.lulko@...il.com>
Cc:	Tomi Valkeinen <tomi.valkeinen@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux Fbdev development list <linux-fbdev@...r.kernel.org>,
	DRI Development <dri-devel@...ts.freedesktop.org>
Subject: Re: No more new fbdev drivers, please

On Fri, Sep 25, 2015 at 12:41 PM, Kamil Lulko <kamil.lulko@...il.com> wrote:
>> fbdev is (more or less) maintained, but it's a deprecated framework. All
>> new Linux display drivers should be done on DRM.
>
>
> What about no-mmu platforms? DRM has a big fat MMU dependency in the
> kconfig, is there a way to write DRM driver for such devices?

That would indeed be a showstopper...

I dropped the dependency, and gave it a quick try for m68knommu.
Seems like DRM currently needs pgprot_writecombine() and pte_wrprotect().
Probably that can be fixed easily.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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