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

From: "Arnd Bergmann" <arnd@arndb.de>
To: "Thomas Zimmermann" <tzimmermann@suse.de>,
	"Ard Biesheuvel" <ardb@kernel.org>,
	"Javier Martinez Canillas" <javierm@redhat.com>
Cc: x86@kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
	loongarch@lists.linux.dev, linux-riscv@lists.infradead.org,
	dri-devel@lists.freedesktop.org, linux-hyperv@vger.kernel.org,
	linux-pci@vger.kernel.org, linux-fbdev@vger.kernel.org
Subject: Re: [PATCH 0/6] arch,sysfb: Move screen and edid info into single place
Date: Fri, 21 Nov 2025 16:09:50 +0100	[thread overview]
Message-ID: <96a8d591-29d5-4764-94f9-6042252e53ff@app.fastmail.com> (raw)
In-Reply-To: <20251121135624.494768-1-tzimmermann@suse.de>

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@arndb.de>

It should also bring us one step closer to eventually
disconnecting the x86 boot ABI from the kernel-internal
sysfb_primary_display.

    Arnd

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