linux-kernel - Re: [PATCH 1/4] vgacon: rework Kconfig dependencies

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Date:   Tue, 1 Aug 2023 18:05:52 +0100
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Thomas Zimmermann <tzimmermann@...e.de>, javierm@...hat.com,
        linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, Ard Biesheuvel <ardb@...nel.org>,
        Helge Deller <deller@....de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>, Guo Ren <guoren@...nel.org>,
        linux-riscv@...ts.infradead.org, linux-csky@...r.kernel.org
Subject: Re: [PATCH 1/4] vgacon: rework Kconfig dependencies

On Fri, Jul 07, 2023 at 11:52:23AM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The list of dependencies here is phrased as an opt-out, but this is missing
> a lot of architectures that don't actually support VGA consoles, and some
> of the entries are stale:
> 
>  - powerpc used to support VGA consoles in the old arch/ppc codebase, but
>    the merged arch/powerpc never did
> 
>  - arm lists footbridge, integrator and netwinder, but netwinder is actually
>    part of footbridge, and integrator does not appear to have an actual
>    VGA hardware, or list it in its ATAG or DT.

Integrator/AP has PCI, and I have had PCI VGA cards plugged in to that
hardware when I've had it.

Provided any platform sets up PCI in a compatible way, and can run the
VGA's BIOS to initialise the card, then vgacon is supportable.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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