Changes in Kconfig

a29a1f0ec8d69ee917a9d4c84b844df0decff0ef - drm/sysfb: corebootdrm: Add DRM driver for coreboot framebuffers

Tue, 17 Feb 2026 16:56:21 +0100

drm/sysfb: corebootdrm: Add DRM driver for coreboot framebuffersAdd corebootdrm, a DRM driver for coreboot framebuffers. The driversupports a pre-initialized framebuffer with various packed RGB formats.The driver code is fairly small and uses the same logic as the othersysfb drivers. Most of the implementation comes from existing sysfbhelpers.Until now, coreboot relied on simpledrm or simplefb for boot-up graphicsoutput. Initialize the platform device for corebootdrm in the same placein framebuffer_probe(). With a later commit, the simple-framebuffer shouldbe removed.v4:- sort include statements (Tzung-Bi)v3:- comment on _HAS_LFB semantics (Tzung-Bi)- fix typo in commit description (Tzung-Bi)- comment on simple-framebuffer being obsolete for corebootv2:- reimplement as platform driver- limit resources and mappings to known framebuffer memory; no page alignment- create corebootdrm device from coreboot framebuffer codeSigned-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Acked-by: Julius Werner Acked-by: Tzung-Bi Shih # corebootLink: https://patch.msgid.link/20260217155836.96267-12-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig

e8bf4a1bdaeadb28d13b9a2bcfd5910fda06eede - drm/sysfb: efidrm: Support module builds

Tue, 08 Apr 2025 11:17:05 +0200

drm/sysfb: efidrm: Support module buildsMake CONFIG_DRM_EFIDRM a tristate to enable module builds.Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250408091837.407401-3-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig

a84eb6abe2b6a7201610645749275c8ac999fd1a - drm/sysfb: Add vesadrm for VESA displays

Tue, 01 Apr 2025 11:37:19 +0200

drm/sysfb: Add vesadrm for VESA displaysAdd support for screen_info setups with VIDEO_TYPE_VLFB. Provide theminimum functionality of reading modes, updating and clearing the display.There is existing support for these displays provided by simpledrm withCONFIG_SYSFB_SIMPLEFB=y. Using vesadrm over simpledrm will allow for theuse of additional functionality provided by VESA, such as EDID information,gamma correction and palette modes. This enhances the user experience andadds support for more display configuratons.v4:- depend on CONFIG_X86v3:- depend on !SYSFB_SIMPLEFB (Javier)Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250401094056.32904-17-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig

32ae90c66fb62e4f6ae859422f733dfb249f10cf - drm/sysfb: Add efidrm for EFI displays

Tue, 01 Apr 2025 11:37:17 +0200

drm/sysfb: Add efidrm for EFI displaysAdd support for screen_info setups with VIDEO_TYPE_EFI. Provide theminimum functionality of reading modes, updating and clearing the display.There is existing support for these displays provided by simpledrm withCONFIG_SYSFB_SIMPLEFB=y. Using efidrm over simpledrm will allows for themapping of video memory with correct caching. Simpledrm always assumes WCcaching, while fully cached memory is possible with efidrm. Efidrm willalso allow for the use of additional functionality provided by EFI, suchas EDID information.In addition to efidrm, add struct pixel_format plus initializer macros.The type and macros describe pixel formats in a generic way on order tofind the DRM format from the screen_info settings. Similar existing codein SIMPLEFB_FORMATS and fbdev is not really what is needed in efidrm,but SIMPLEFB_FORMATS can later be converted to struct pixel_format.v4:- depend on CONFIG_EFI- disallow module for now as efi_mem_desc_lookup() is not exportedv3:- depend on !SYSFB_SIMPLEFB (Javier)Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250401094056.32904-15-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig

b5626f6f8f4db2f1dd354f70dfe8e747cb3cbcc9 - drm/sysfb: Add struct drm_sysfb_device

Tue, 01 Apr 2025 11:37:08 +0200

drm/sysfb: Add struct drm_sysfb_deviceAdd struct drm_sysfb_device that stores the system display's hardwaresettings. Further helpers for the mode-setting pipeline will use thesefields. Convert ofdrm and simpledrm by embedding the sysfb device intheir device structs.Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250401094056.32904-6-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig

319251c5e3840410d4bef27b17aa2c2573d28edd - drm: Move sysfb drivers into separate subdirectory

Tue, 01 Apr 2025 11:37:07 +0200

drm: Move sysfb drivers into separate subdirectoryThe ofdrm and simpledrm drivers are special as they operate onexternally provided framebuffers. Move them into their own sub-directory. Will let them share common code.Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250401094056.32904-5-tzimmermann@suse.de List of files: /linux/drivers/gpu/drm/sysfb/Kconfig