Changes in Kconfig

37a91b995952a556a6eb90c31736ee773b86999c - fbdev: remove Hercules monochrome ISA graphics adapter driver

Sun, 03 May 2026 06:56:34 +0200

fbdev: remove Hercules monochrome ISA graphics adapter driverThe hgafb driver supports graphics adapters compatible with the Herculesadapter from 1984. These were ISA cards or onboard devices that supportedmonochrome 720x348 graphics. This driver was created in 1999 by Ferenc Bakonyi.In the entire Git history (since Linux 2.6.12-rc2), there has only been onecommit in 2010 which indicated that the driver was in use, commit 529ed806d454("video: Fix the HGA framebuffer driver"). The commit message states: Only tested with fbcon, since most fbdev-based software appears to only support 12bpp and up. It does not appear that this driver has worked for at least the entire 2.6.x series, perhaps since 2002.Given the age and limited capabilities of the hardware and the lack ofusers, remove this driver and move the former maintainer to CREDITS.Signed-off-by: Ethan Nelson-Moore Acked-by: Thomas Zimmermann Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

ea11284a2be6ce44d4c091d737a4440504cff33d - fbdev: update help text for CONFIG_FB_NVIDIA

Thu, 12 Mar 2026 21:55:07 +0100

fbdev: update help text for CONFIG_FB_NVIDIAThe help text for CONFIG_FB_NVIDIA refers to obsolete hardware andincorrect default behaviour. This patch updates the description toreflect the current state of the driver and supported devices.Signed-off-by: robgithub Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

6f366e86481a7503a821de82930df517dddd4047 - fbdev: au1100fb: Make driver compilable on non-mips platforms

Mon, 16 Feb 2026 00:33:20 +0100

fbdev: au1100fb: Make driver compilable on non-mips platformsThe header asm/mach-au1x00/au1000.h is unused apart from pulling in (for mdelay()) and (for KSEG1ADDR()). Thenthe only platform specific part in the driver is the usage of the KSEG1ADDRmacro, which for the non-mips case can be stubbed.Signed-off-by: Uwe Kleine-König Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

40227f2efcfb7148fdee8d69ba52301951ef8a32 - fbdev: hyperv_fb: Remove hyperv_fb driver

Sat, 27 Dec 2025 05:24:46 +0100

fbdev: hyperv_fb: Remove hyperv_fb driverThe HyperV DRM driver is available since 5.14. This makes the hyperv_fbdriver redundant, remove it.Signed-off-by: Prasanna Kumar T S M Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

6200442de089468ff283becb81382d6ac23c25e9 - Merge tag 'drm-misc-next-2025-10-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Tue, 21 Oct 2025 10:16:34 +0200

Merge tag 'drm-misc-next-2025-10-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-nextdrm-misc-next for v6.19:UAPI Changes:Cross-subsystem Changes:- fbcon cleanups.- Make drivers depend on FB_TILEBLITTING instead of selecting it, and hide FB_MODE_HELPERS.Core Changes:- More preparations for rust.- Throttle dirty worker with vblank- Use drm_for_each_bridge_in_chain_scoped in drm's bridge code and assorted fixes.- Ensure drm_client_modeset tests are enabled in UML.- Rename ttm_bo_put to ttm_bo_fini, as a further step in removing the TTM bo refcount.- Add POST_LT_ADJ_REQ training sequence.- Show list of removed but still allocated bridges.- Add a simulated vblank interrupt for hardware without it, and add some helpers to use them in vkms and hypervdrm.Driver Changes:- Assorted small fixes, cleanups and updates to host1x, tegra, panthor, amdxdna, gud, vc4, ssd130x, ivpu, panfrost, panthor, sysfb, bridge/sn65dsi86, solomon, ast, tidss.- Convert drivers from using .round_rate() to .determine_rate()- Add support for KD116N3730A07/A12, chromebook mt8189, JT101TM023, LQ079L1SX01, raspberrypi 5" panels.- Improve reclocking on tegra186+ with nouveau.- Improve runtime pm in amdxdna.- Add support for HTX_PAI in imx.- Use a helper to calculate dumb buffer sizes in most drivers.Signed-off-by: Simona Vetter From: Maarten Lankhorst Link: https://lore.kernel.org/r/b412fb91-8545-466a-8102-d89c0f2758a7@linux.intel.com List of files: /linux/drivers/video/fbdev/Kconfig

06a88f47990974f1322c2bf2e8c5125f8a2f69fe - Merge tag 'fbdev-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Fri, 10 Oct 2025 18:36:23 +0200

Merge tag 'fbdev-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevPull fbdev updates from Helge Deller: "Beside the usual bunch of smaller bug fixes, the majority of changes were by Zsolt Kajtar to improve the s3fb driver. Bug fixes: - Bounds checking to fix vmalloc-out-of-bounds (Albin Babu Varghese) - Fix logic error in "offb" name match (Finn Thain) - simplefb: Fix use after free in (Janne Grunau) - s3fb: Various fixes and powersave improvements (Zsolt Kajtar) Enhancements & code cleanups: - Various fixes in the documentation (Bagas Sanjaya) - Use string choices helpers (Chelsy Ratnawat) - xenfb: Use vmalloc_array to simplify code (Qianfeng Rong) - mb862xxfb: use signed type for error codes (Qianfeng Rong) - Make drivers depend on LCD_CLASS_DEVICE (Thomas Zimmermann) - radeonfb: Remove stale product link in Kconfig (Sukrut Heroorkar)"* tag 'fbdev-for-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: Fix logic error in "offb" name match fbdev: Add bounds checking in bit_putcs to fix vmalloc-out-of-bounds fbdev: Make drivers depend on LCD_CLASS_DEVICE fbdev: radeonfb: Remove stale product link in Kconfig Documentation: fb: Retitle driver docs Documentation: fb: ep93xx: Demote section headings Documentation: fb: Split toctree fbdev: simplefb: Fix use after free in simplefb_detach_genpds() fbdev: s3fb: Revert mclk stop in suspend fbdev: mb862xxfb: Use int type to store negative error codes fbdev: Use string choices helpers fbdev: core: Fix ubsan warning in pixel_to_pat fbdev: s3fb: Implement 1 and 2 BPP modes, improve 4 BPP fbdev: s3fb: Implement powersave for S3 FB fbdev: xenfb: Use vmalloc_array to simplify code List of files: /linux/drivers/video/fbdev/Kconfig

34b4620349fe4776babf9c735e1c68e620784763 - fbdev/hyperv_fb: deprecate this in favor of Hyper-V DRM driver

Thu, 02 Oct 2025 23:10:36 +0200

fbdev/hyperv_fb: deprecate this in favor of Hyper-V DRM driverThe Hyper-V DRM driver is available since kernel version 5.14 and itprovides full KMS support and fbdev emulation via the DRM fbdev helpers.Deprecate this driver in favor of Hyper-V DRM driver.Signed-off-by: Prasanna Kumar T S M Acked-by: Thomas Zimmermann Reviewed-by: Michael Kelley Reviewed-by: Saurabh Sengar Signed-off-by: Wei Liu List of files: /linux/drivers/video/fbdev/Kconfig

c8fee6a7c5cbde4908804aafc469391c22e72be9 - fbdev: Make drivers depend on LCD_CLASS_DEVICE

Wed, 24 Sep 2025 10:33:40 +0200

fbdev: Make drivers depend on LCD_CLASS_DEVICELCD_CLASS_DEVICE is the user-controlled option that enables the LCDdisplay subsystem. Do not select it from fbdev drivers. Selecting itfrom drivers can lead to cyclic dependencies within the config.Some guidelines for using select can be found in the kernel docs at [1].Signed-off-by: Thomas Zimmermann Link: https://elixir.bootlin.com/linux/v6.16/source/Documentation/kbuild/kconfig-language.rst#L147 # [1]Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

c3073f1da0517b63cf3e561d79c346e15bd8c5a8 - fbdev: radeonfb: Remove stale product link in Kconfig

Tue, 23 Sep 2025 19:14:04 +0200

fbdev: radeonfb: Remove stale product link in KconfigThe product page referenced in the FB_RADEON is no longer valid.Remove it to avoid pointing to an invalid link.Signed-off-by: Sukrut Heroorkar Acked-by: Alex Deucher Acked-by: Thomas Zimmermann Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

94b04355e6397a0a70b69c2571fa5c7d9990b835 - Drivers: hv: Add CONFIG_HYPERV_VMBUS option

Tue, 16 Sep 2025 01:46:03 +0200

Drivers: hv: Add CONFIG_HYPERV_VMBUS optionAt present VMBus driver is hinged off of CONFIG_HYPERV which entailslot of builtin code and encompasses too much. It's not always clearwhat depends on builtin hv code and what depends on VMBus. SettingCONFIG_HYPERV as a module and fudging the Makefile to switch to builtinadds even more confusion. VMBus is an independent module and should haveits own config option. Also, there are scenarios like baremetal dom0/rootwhere support is built in with CONFIG_HYPERV but without VMBus. Lastly,there are more features coming down that use CONFIG_HYPERV and add moredependencies on it.So, create a fine grained HYPERV_VMBUS option and update Kconfigs fordependency on VMBus.Signed-off-by: Mukesh Rathor Acked-by: Bjorn Helgaas # drivers/pciSigned-off-by: Wei Liu List of files: /linux/drivers/video/fbdev/Kconfig

69c9820d40892f7c10db03c5364795f5bb12aced - fbdev: s3fb: Implement 1 and 2 BPP modes, improve 4 BPP

Mon, 18 Aug 2025 22:44:26 +0200

fbdev: s3fb: Implement 1 and 2 BPP modes, improve 4 BPPWith the right setup S3 cards can display 1 and 2 BPP packed pixelmodes, even in high resolutions. So this patch makes them available.The 4 BPP packed pixel mode had one pixel column of garbage on theleft side due to how the shift register works, this is fixed now.There was a limitation that only 8 pixel wide fonts could be used at 4BPP. Since the CFB routines were updated to handle reverse pixelordering correctly that limitation doesn't exists and was removed now.In 4 BPP interleaved planes mode font widths of multiply of 8 areaccepted now, not just 8 pixels.The horizontal screen position will not move as much between modes as itused to. That was caused by the various amount of pipeline delay whichis compensated now as much as possible.While adjusting the code direct port access of PEL registers wascorrected. Should work now on systems where these are memory mapped.I've noticed that when in 1 BPP mode the console is used with Unicodefonts erasing might be done with non-blanks. That's a bug in the VT codeand so not part of this patch.Signed-off-by: Zsolt Kajtar Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

b9247c4e3f70a614fe0dcfcc919ad3f3deb8dd62 - fbdev: Make drivers depend on FB_TILEBLITTING

Tue, 09 Sep 2025 15:19:30 +0200

fbdev: Make drivers depend on FB_TILEBLITTINGThe option CONFIG_FB_TILEBLITTING is controlled by the user. Selectingit from drivers can lead to cyclic dependencies within the config. Infbcon, there's special handling for tile blitting, which currentlycannot be disabled without first disabling the relevant fbdev drivers.Fix the Kconfig dependency to make it work.Some guidelines for using select can be found in the kernel docs at [1].Signed-off-by: Thomas Zimmermann Link: https://elixir.bootlin.com/linux/v6.16/source/Documentation/kbuild/kconfig-language.rst#L147 # [1]Acked-by: Arnd Bergmann Link: https://lore.kernel.org/r/20250909132047.152612-2-tzimmermann@suse.de List of files: /linux/drivers/video/fbdev/Kconfig

ecdd7df997fd992f0ec70b788e3b12258008a2bf - fbdev: nvidiafb: add depends on HAS_IOPORT

Sun, 15 Jun 2025 20:36:51 +0200

fbdev: nvidiafb: add depends on HAS_IOPORTThe nvidiafb driver uses inb()/outb() without depending on HAS_IOPORT,which leads to build errors since kernel v6.13-rc1:commit 6f043e757445 ("asm-generic/io.h: Remove I/O port accessorsfor HAS_IOPORT=n")Add the HAS_IOPORT dependency to prevent the build errors.(Found in ARCH=um allmodconfig builds)drivers/video/fbdev/nvidia/nv_accel.c: In function ‘NVDmaWait’:include/asm-generic/io.h:596:15: error: call to ‘_outb’ declared with attribute error: outb() requires CONFIG_HAS_IOPORT 596 | #define _outb _outbSigned-off-by: Randy Dunlap Cc: Arnd Bergmann Cc: Niklas Schnelle Cc: Antonino Daplas Cc: Helge Deller Cc: linux-fbdev@vger.kernel.orgCc: dri-devel@lists.freedesktop.orgCc: stable@vger.kernel.org # v6.13+Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

8fc38062be3f692ff8816da84fde71972530bcc4 - fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICE

Mon, 16 Dec 2024 08:42:47 +0100

fbdev: Fix recursive dependencies wrt BACKLIGHT_CLASS_DEVICEDo not select BACKLIGHT_CLASS_DEVICE from FB_BACKLIGHT. The latteronly controls backlight support within fbdev core code and datastructures.Make fbdev drivers depend on BACKLIGHT_CLASS_DEVICE and let usersselect it explicitly. Fixes warnings about recursive dependencies,such aserror: recursive dependency detected! symbol BACKLIGHT_CLASS_DEVICE is selected by FB_BACKLIGHT symbol FB_BACKLIGHT is selected by FB_SH_MOBILE_LCDC symbol FB_SH_MOBILE_LCDC depends on FB_DEVICE symbol FB_DEVICE depends on FB_CORE symbol FB_CORE is selected by DRM_GEM_DMA_HELPER symbol DRM_GEM_DMA_HELPER is selected by DRM_PANEL_ILITEK_ILI9341 symbol DRM_PANEL_ILITEK_ILI9341 depends on BACKLIGHT_CLASS_DEVICEBACKLIGHT_CLASS_DEVICE is user-selectable, so making drivers adapt toit is the correct approach in any case. For most drivers, backlightsupport is also configurable separately.v3:- Select BACKLIGHT_CLASS_DEVICE in PowerMac defconfigs (Christophe)- Fix PMAC_BACKLIGHT module dependency corner cases (Christophe)v2:- s/BACKLIGHT_DEVICE_CLASS/BACKLIGHT_CLASS_DEVICE (Helge)- Fix fbdev driver-dependency corner case (Arnd)Signed-off-by: Thomas Zimmermann Reviewed-by: Arnd Bergmann Link: https://patchwork.freedesktop.org/patch/msgid/20241216074450.8590-2-tzimmermann@suse.de List of files: /linux/drivers/video/fbdev/Kconfig

51521d2e2c35959cc70a62ccddf694965e29c950 - fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPS

Fri, 18 Oct 2024 17:12:49 +0200

fbdev: wm8505fb: select CONFIG_FB_IOMEM_FOPSThe fb_io_mmap() function is used in the file operations butnot enabled in all configurations unless FB_IOMEM_FOPS getsselected:ld.lld-20: error: undefined symbol: fb_io_mmap referenced by wm8505fb.c drivers/video/fbdev/wm8505fb.o:(wm8505fb_ops) in archive vmlinux.aFixes: 11754a504608 ("fbdev/wm8505fb: Initialize fb_ops to fbdev I/O-memory helpers")Signed-off-by: Arnd Bergmann Reviewed-by: Thomas Zimmermann Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

bb94f56b9cfa4a946a43492b2a13ecb5b9b571bc - fbdev: da8xx: remove the driver

Tue, 15 Oct 2024 08:53:29 +0200

fbdev: da8xx: remove the driverThis driver is no longer used on any platform. It has been replaced bytilcdc on the two DaVinci boards we still support and can be removed.Signed-off-by: Bartosz Golaszewski Acked-by: Thomas Zimmermann Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

447794e44744aff3c0f11942b83b878b8bb6f72b - fbdev: sstfb: Make CONFIG_FB_DEVICE optional

Fri, 04 Oct 2024 17:24:29 +0200

fbdev: sstfb: Make CONFIG_FB_DEVICE optionalThe sstfb driver currently depends on CONFIG_FB_DEVICE to create sysfsentries and access info->dev. This patch wraps the relevant code blockswith #ifdef CONFIG_FB_DEVICE, allowing the driver to be built and usedeven if CONFIG_FB_DEVICE is not selected.The sysfs setting only controls the VGA pass-through state and is notrequired for the display to work correctly.(See: http://vogonswiki.com/index.php/VGA_passthrough_cablefor more information.)Added some fixes from Thomas Zimmermann.Signed-off-by: Gonzalo Silvalde Blanco Signed-off-by: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

d34672777da3ea919e8adb0670ab91ddadf7dea0 - Merge tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Wed, 15 May 2024 18:53:06 +0200

Merge tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevPull fbdev updates from Helge Deller: "Code cleanups for offb, shmobile, sisfb, savage, au1200fb, uvesafb, omap2 and sh7760fb, as well as the addition of some HAS_IOPORT dependencies and adjustment of generated logo file to make build reproducible"* tag 'fbdev-for-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: offb: replace of_node_put with __free(device_node) fbdev: savage: Handle err return when savagefb_check_var failed video: hdmi: prefer length specifier in format over string copying fbdev: uvesafb: replace deprecated strncpy with strscpy_pad fbdev: au1200fb: replace deprecated strncpy with strscpy fbdev: fsl-diu-fb: replace deprecated strncpy with strscpy_pad video: logo: Drop full path of the input filename in generated file fbdev: add HAS_IOPORT dependencies fbdev: sh7760fb: allow modular build fbdev: sisfb: hide unused variables fbdev: shmobile: fix snprintf truncation fbdev: omap2: replace of_graph_get_next_endpoint() List of files: /linux/drivers/video/fbdev/Kconfig

536a82d8362b4e3801cf3ea04767c4dc715cfa1f - fbdev: add HAS_IOPORT dependencies

Wed, 10 Apr 2024 12:56:26 +0200

fbdev: add HAS_IOPORT dependenciesIn a future patch HAS_IOPORT=n will disable inb()/outb() and friends atcompile time. We thus need to add HAS_IOPORT as dependency for thosedrivers using them.Co-developed-by: Arnd Bergmann Signed-off-by: Arnd Bergmann Signed-off-by: Niklas Schnelle Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig

51084f89d687e14d96278241e5200cde4b0985c7 - fbdev: sh7760fb: allow modular build

Sat, 10 Feb 2024 06:39:38 +0100

fbdev: sh7760fb: allow modular buildThere is no reason to prohibit sh7760fb from being built as aloadable module as suggested by Geert, so change the config symbolfrom bool to tristate to allow that and change the FB dependency asneeded.Fixes: f75f71b2c418 ("fbdev/sh7760fb: Depend on FB=y")Suggested-by: Geert Uytterhoeven Signed-off-by: Randy Dunlap Cc: Thomas Zimmermann Cc: Javier Martinez Canillas Cc: John Paul Adrian Glaubitz Cc: Sam Ravnborg Cc: Helge Deller Cc: linux-fbdev@vger.kernel.orgCc: dri-devel@lists.freedesktop.orgAcked-by: John Paul Adrian Glaubitz Acked-by: Javier Martinez Canillas Signed-off-by: Helge Deller List of files: /linux/drivers/video/fbdev/Kconfig