[PATCH v2] firmware: sysfb: Mark CONFIG_SYSFB_SIMPLEFB as deprecated
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2026-06-25 06:57:31
Also in:
dri-devel, lkml, sashiko-reviews
Subsystem:
drm driver for firmware framebuffers, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Thomas Zimmermann, Javier Martinez Canillas, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Linus Torvalds
Mark CONFIG_SYSFB_SIMPLEFB as deprecated. Enabling it allows to run simpledrm and simplefb on EFI/VESA framebuffers. Doing this is discouraged in favor of using efidrm and vesadrm. v2: - resolve conflicting help texts (Sashiko) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> --- drivers/firmware/Kconfig | 32 ++++++++++---------------------- drivers/gpu/drm/sysfb/Kconfig | 7 ++----- 2 files changed, 12 insertions(+), 27 deletions(-)
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index bbd2155d8483..637e3bb5549e 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig@@ -184,32 +184,20 @@ config SYSFB select SCREEN_INFO config SYSFB_SIMPLEFB - bool "Mark VGA/VBE/EFI FB as generic system framebuffer" + bool "Mark VGA/VBE/EFI FB as generic system framebuffer (deprecated)" depends on X86 || EFI select SYSFB help - Firmwares often provide initial graphics framebuffers so the BIOS, + Firmware often provides initial graphics framebuffers so the BIOS, bootloader or kernel can show basic video-output during boot for - user-guidance and debugging. Historically, x86 used the VESA BIOS - Extensions and EFI-framebuffers for this, which are mostly limited - to x86 BIOS or EFI systems. - This option, if enabled, marks VGA/VBE/EFI framebuffers as generic - framebuffers so the new generic system-framebuffer drivers can be - used instead. If the framebuffer is not compatible with the generic - modes, it is advertised as fallback platform framebuffer so legacy - drivers like efifb, vesafb and uvesafb can pick it up. - If this option is not selected, all system framebuffers are always - marked as fallback platform framebuffers as usual. - - Note: Legacy fbdev drivers, including vesafb, efifb, uvesafb, will - not be able to pick up generic system framebuffers if this option - is selected. You are highly encouraged to enable simplefb as - replacement if you select this option. simplefb can correctly deal - with generic system framebuffers. But you should still keep vesafb - and others enabled as fallback if a system framebuffer is - incompatible with simplefb. - - If unsure, say Y. + user-guidance and debugging. + + This option, if enabled, marks VBE/EFI framebuffers as system + framebuffers so the generic simpledrm driver can be used. + + This option is deprecated and will be removed in the near future. If + unsure, say N and select efidrm, vesadrm instead. The dedicated DRM + drivers provide the same functionality plus additional features. config TH1520_AON_PROTOCOL tristate "Always-On firmware protocol"
diff --git a/drivers/gpu/drm/sysfb/Kconfig b/drivers/gpu/drm/sysfb/Kconfig
index 2559ead6cf1f..f7e48178885e 100644
--- a/drivers/gpu/drm/sysfb/Kconfig
+++ b/drivers/gpu/drm/sysfb/Kconfig@@ -67,11 +67,8 @@ config DRM_SIMPLEDRM This driver assumes that the display hardware has been initialized by the firmware or bootloader before the kernel boots. Scanout - buffer, size, and display format must be provided via device tree, - UEFI, VESA, etc. - - On x86 BIOS or UEFI systems, you should also select SYSFB_SIMPLEFB - to use UEFI and VESA framebuffers. + buffer, size, and display format must be provided via device tree's + simple-framebuffer node. config DRM_VESADRM tristate "VESA framebuffer driver"
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2.54.0