linux-kernel - Re: [PATCH 0/6] arch,sysfb: Move screen and edid info into single place

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Message-ID: <CAMj1kXF1Dh0RbuqYc0fhAPf-CM0mdYh8BhenM8-ugKVHfwnhBg@mail.gmail.com>
Date: Fri, 21 Nov 2025 16:16:20 +0100
From: Ard Biesheuvel <ardb@...nel.org>
To: Arnd Bergmann <arnd@...db.de>
Cc: Thomas Zimmermann <tzimmermann@...e.de>, Javier Martinez Canillas <javierm@...hat.com>, x86@...nel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-efi@...r.kernel.org, loongarch@...ts.linux.dev, 
	linux-riscv@...ts.infradead.org, dri-devel@...ts.freedesktop.org, 
	linux-hyperv@...r.kernel.org, linux-pci@...r.kernel.org, 
	linux-fbdev@...r.kernel.org
Subject: Re: [PATCH 0/6] arch,sysfb: Move screen and edid info into single place

On Fri, 21 Nov 2025 at 16:10, Arnd Bergmann <arnd@...db.de> wrote:
>
> On Fri, Nov 21, 2025, at 14:36, Thomas Zimmermann wrote:
> > Replace screen_info and edid_info with sysfb_primary_device of type
> > struct sysfb_display_info. Update all users.
> >
> > Sysfb DRM drivers currently fetch the global edid_info directly, when
> > they should get that information together with the screen_info from their
> > device. Wrapping screen_info and edid_info in sysfb_primary_display and
> > passing this to drivers enables this.
> >
> > Replacing both with sysfb_primary_display has been motivate by the EFI
> > stub. EFI wants to transfer EDID via config table in a single entry.
> > Using struct sysfb_display_info this will become easily possible. Hence
> > accept some churn in architecture code for the long-term improvements.
>
> This all looks good to me,
>
> Acked-by: Arnd Bergmann <arnd@...db.de>
>
> It should also bring us one step closer to eventually
> disconnecting the x86 boot ABI from the kernel-internal
> sysfb_primary_display.
>

Agreed

Acked-by: Ard Biesheuvel <ardb@...nel.org>

I can take patches 1-2 right away, if that helps during the next cycle.