Support FIRMWARE_EDID on non-x86 [LWN.net]

From:		Ard Biesheuvel
To:		linux-efi-AT-vger.kernel.org
Subject:		[PATCH 0/3] video/efi: Support FIRMWARE_EDID on non-x86
Date:		Wed, 19 Nov 2025 13:30:12 +0100
Message-ID:		<[email protected]>
Cc:		linux-kernel-AT-vger.kernel.org, Ard Biesheuvel , Thomas Zimmermann , Javier Martinez Canillas
Archive-link:		Article

From: Ard Biesheuvel 

Refactor the screen_info handling so non-x86 platforms booting via the
EFI stub also have access to the EDID data exposed by the EFI boot
services.

Cc: Thomas Zimmermann 
Cc: Javier Martinez Canillas 

Ard Biesheuvel (3):
  efi: Wrap screen_info in efi_screen_info so edid_info can be added
    later
  video/edid: Use getter function for edid_info
  efi: Add FIRMWARE_EDID support

 arch/x86/kernel/setup.c                       |  8 ++++++--
 drivers/firmware/efi/earlycon.c               |  1 -
 drivers/firmware/efi/efi-init.c               | 19 ++++++++++++++-----
 drivers/firmware/efi/libstub/efi-stub-entry.c |  3 +--
 drivers/firmware/efi/libstub/efi-stub.c       | 16 ++++++++++------
 drivers/firmware/efi/libstub/efistub.h        |  9 +++------
 drivers/firmware/efi/libstub/gop.c            |  1 -
 drivers/firmware/efi/libstub/screen_info.c    |  7 +++----
 drivers/firmware/efi/libstub/zboot.c          |  2 +-
 drivers/firmware/efi/sysfb_efi.c              |  1 -
 drivers/gpu/drm/sysfb/efidrm.c                |  4 ++--
 drivers/gpu/drm/sysfb/vesadrm.c               |  4 ++--
 drivers/video/Kconfig                         |  2 +-
 drivers/video/fbdev/core/fbmon.c              |  4 ++--
 include/linux/efi.h                           | 10 +++++++++-
 include/video/edid.h                          |  2 +-
 16 files changed, 55 insertions(+), 38 deletions(-)

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2.52.0.rc1.455.g30608eb744-goog