summaryrefslogtreecommitdiffstats
path: root/drivers/video
AgeCommit message (Collapse)AuthorLines
13 daysConvert more 'alloc_obj' cases to default GFP_KERNEL argumentsLinus Torvalds-14/+7
This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 daysConvert 'alloc_flex' family to use the new default GFP_KERNEL argumentLinus Torvalds-1/+1
This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 daysConvert 'alloc_obj' family to use the new default GFP_KERNEL argumentLinus Torvalds-64/+64
This was done entirely with mindless brute force, using git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' | xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/' to convert the new alloc_obj() users that had a simple GFP_KERNEL argument to just drop that argument. Note that due to the extreme simplicity of the scripting, any slightly more complex cases spread over multiple lines would not be triggered: they definitely exist, but this covers the vast bulk of the cases, and the resulting diff is also then easier to check automatically. For the same reason the 'flex' versions will be done as a separate conversion. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 daystreewide: Replace kmalloc with kmalloc_obj for non-scalar typesKees Cook-86/+82
This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-20Merge tag 'fbdev-for-7.0-rc1-2' of ↵Linus Torvalds-463/+406
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull more fbdev updates from Helge Deller: "Code cleanups for the au1100fb fbdev driver (Uwe Kleine-König)" * tag 'fbdev-for-7.0-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: au1100fb: Replace license boilerplate by SPDX header fbdev: au1100fb: Fold au1100fb.h into its only user fbdev: au1100fb: Replace custom printk wrappers by pr_* fbdev: au1100fb: Make driver compilable on non-mips platforms fbdev: au1100fb: Use proper conversion specifiers in printk formats fbdev: au1100fb: Mark several local functions as static fbdev: au1100fb: Don't store device specific data in global variables
2026-02-19fbdev: au1100fb: Replace license boilerplate by SPDX headerUwe Kleine-König-20/+1
This also gets rid of an old address of the FSF. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Fold au1100fb.h into its only userUwe Kleine-König-373/+338
This gets rid of a header that is only used once. The copyrights and license specifications are all already covered in the au1100fb.c file. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Replace custom printk wrappers by pr_*Uwe Kleine-König-30/+21
The global wrappers also have the advantage to do stricter format checking, so the pr_devel formats are also checked if DEBUG is not defined. The global variants only check for DEBUG being defined and not its actual value, so the #define to zero is dropped, too. There is only a slight semantic change as the (by default disabled) debug output doesn't contain __FILE__ any more. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Make driver compilable on non-mips platformsUwe Kleine-König-5/+12
The header asm/mach-au1x00/au1000.h is unused apart from pulling in <linux/delay.h> (for mdelay()) and <linux/io.h> (for KSEG1ADDR()). Then the only platform specific part in the driver is the usage of the KSEG1ADDR macro, which for the non-mips case can be stubbed. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Use proper conversion specifiers in printk formatsUwe Kleine-König-3/+3
%zu is the dedicated type for size_t. %d only works on 32bit architectures where size_t is typedef'd to be unsigned int. (And then the signedness doesn't fit, but `gcc -Wformat` doesn't stumble over this. Also the size of dma_addr_t is architecture dependent and it should be printkd using %pad (and the value passed by reference). This prepares allowing this driver to be compiled on non-mips platforms. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Mark several local functions as staticUwe Kleine-König-6/+7
This fixes several (fatal) compiler warnings à la drivers/video/fbdev/au1100fb.c:530:6: error: no previous prototype for ‘au1100fb_drv_remove’ [-Werror=missing-prototypes] 523 | void au1100fb_drv_remove(struct platform_device *dev) | ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-19fbdev: au1100fb: Don't store device specific data in global variablesUwe Kleine-König-36/+34
Using global data to store device specific data is a bad pattern that breaks if there is more than one device. So expand driver data and drop the global variables. While there is probably no machine that has two or more au1100fb devices, this makes the driver a better template for new drivers and saves some memory if there is no such bound device. bloat-o-meter reports (for ARCH=arm allmodconfig + CONFIG_FB_AU1100=y and ignoring the rename of the init function): add/remove: 1/4 grow/shrink: 2/2 up/down: 1360/-4800 (-3440) Function old new delta au1100fb_drv_probe 2648 3328 +680 $a 12808 13484 +676 au1100fb_drv_resume 404 400 -4 au1100fb_fix 68 - -68 au1100fb_var 160 - -160 fbregs 2048 - -2048 $d 9525 7009 -2516 Total: Before=38664, After=35224, chg -8.90% Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-16Merge tag 'backlight-next-6.20' of ↵Linus Torvalds-3/+233
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "New Support & Features: - Add a new driver for the Congatec Board Controller (CGBC) backlight, providing brightness control via the board controller's PWM interface Improvements & Fixes: - Resolve build failures in the Awinic AW99706 driver by switching to the correct GPIO consumer header - Extend the Qualcomm WLED driver to support the specific over-voltage protection (OVP) values required for the PMI8994 and PMI8950 variants Device Tree Bindings Updates: - Document the device-specific over-voltage protection (OVP) millivolt ranges and default values for Qualcomm PMI8994 and PMI8950 WLED controllers" * tag 'backlight-next-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: qcom-wled: Change PM8950 WLED configurations dt-bindings: backlight: qcom-wled: Document ovp values for PMI8950 backlight: qcom-wled: Support ovp values for PMI8994 dt-bindings: backlight: qcom-wled: Document ovp values for PMI8994 backlight: aw99706: Fix build errors caused by wrong gpio header backlight: Add Congatec Board Controller (CGBC) backlight support
2026-02-14fbcon: Remove struct fbcon_display.inverseThomas Zimmermann-1/+0
The field inverse in struct fbcon_display is unused. Remove it. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: <stable@vger.kernel.org> # v6.0+ Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: au1200fb: Fix a memory leak in au1200fb_drv_probe()Felix Gu-2/+4
In au1200fb_drv_probe(), when platform_get_irq fails(), it directly returns from the function with an error code, which causes a memory leak. Replace it with a goto label to ensure proper cleanup. Fixes: 4e88761f5f8c ("fbdev: au1200fb: Fix missing IRQ check in au1200fb_drv_probe") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: ffb: fix corrupted video output on Sun FFB1René Rebe-1/+13
Fix Sun FFB1 corrupted video out ([1] and [2]) by disabling overlay and initializing window mode to a known state. The issue never appeared on my FFB2+/vertical nor Elite3D/M6. It could also depend on the PROM version. /SUNW,ffb@1e,0: FFB at 000001fc00000000, type 11, DAC pnum[236c] rev[10] manuf_rev[4] X (II) /dev/fb0: Detected FFB1, Z-buffer, Single-buffered. X (II) /dev/fb0: BT9068 (PAC1) ramdac detected (with normal cursor control) X (II) /dev/fb0: Detected Creator/Creator3D [1] https://www.instagram.com/p/DUTcSmSjSem/ [2] https://chaos.social/@ReneRebe/116023241660154102 Signed-off-by: René Rebe <rene@exactco.de> Cc: stable@kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: of_display_timing: Fix device node reference leak in ↵Felix Gu-3/+3
of_get_display_timings() Use for_each_child_of_node_scoped instead of for_each_child_of_node to ensure automatic of_node_put on early exit paths, preventing device node reference leak. Fixes: cc3f414cf2e4 ("video: add of helper for display timings/videomode") Signed-off-by: Felix Gu <ustc.gu@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: au1100fb: Check return value of clk_enable() in .resume()Chen Ni-1/+4
Check the return value of clk_enable() in au1100fb_drv_resume() and return the error on failure. This ensures the system is aware of the resume failure and can track its state accurately. Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14printk, vt, fbcon: Remove console_conditional_schedule()Sebastian Andrzej Siewior-6/+0
do_con_write(), fbcon_redraw.*() invoke console_conditional_schedule() which is a conditional scheduling point based on printk's internal variables console_may_schedule. It may only be used if the console lock is acquired for instance via console_lock() or console_trylock(). Prinkt sets the internal variable to 1 (and allows to schedule) if the console lock has been acquired via console_lock(). The trylock does not allow it. The console_conditional_schedule() invocation in do_con_write() is invoked shortly before console_unlock(). The console_conditional_schedule() invocation in fbcon_redraw.*() original from fbcon_scroll() / vt's con_scroll() which originate from a line feed. In console_unlock() the variable is set to 0 (forbids to schedule) and it tries to schedule while making progress printing. This is brand new compared to when console_conditional_schedule() was added in v2.4.9.11. In v2.6.38-rc3, console_unlock() (started its existence) iterated over all consoles and flushed them with disabled interrupts. A scheduling attempt here was not possible, it relied that a long print scheduled before console_unlock(). Since commit 8d91f8b15361d ("printk: do cond_resched() between lines while outputting to consoles"), which appeared in v4.5-rc1, console_unlock() attempts to schedule if it was allowed to schedule while during console_lock(). Each record is idealy one line so after every line feed. This console_conditional_schedule() is also only relevant on PREEMPT_NONE and PREEMPT_VOLUNTARY builds. In other configurations cond_resched() becomes a nop and has no impact. I'm bringing this all up just proof that it is not required anymore. It becomes a problem on a PREEMPT_RT build with debug code enabled because that might_sleep() in cond_resched() remains and triggers a warnings. This is due to legacy_kthread_func-> console_flush_one_record -> vt_console_print-> lf -> con_scroll -> fbcon_scroll and vt_console_print() acquires a spinlock_t which does not allow a voluntary schedule. There is no need to fb_scroll() to schedule since console_flush_one_record() attempts to schedule after each line. !PREEMPT_RT is not affected because the legacy printing thread is only enabled on PREEMPT_RT builds. Therefore I suggest to remove console_conditional_schedule(). Cc: Simona Vetter <simona@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Fixes: 5f53ca3ff83b4 ("printk: Implement legacy printer kthread for PREEMPT_RT") Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Petr Mladek <pmladek@suse.com> # from printk() POV Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: fix fb_pad_unaligned_buffer maskOsama Abdelkader-1/+1
mask is u8, so it should use 0xff instead of 0xfff Signed-off-by: Osama Abdelkader <osama.abdelkader@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: of: display_timing: fix refcount leak in of_get_display_timings()Weigang He-2/+2
of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak. Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup. Fixes: cc3f414cf2e4 ("video: add of helper for display timings/videomode") Cc: stable@vger.kernel.org Signed-off-by: Weigang He <geoffreyhe2@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: vt8500lcdfb: fix missing dma_free_coherent()Thomas Fourier-1/+4
fbi->fb.screen_buffer is allocated with dma_alloc_coherent() but is not freed if the error path is reached. Fixes: e7b995371fe1 ("video: vt8500: Add devicetree support for vt8500-fb and wm8505-fb") Cc: <stable@vger.kernel.org> Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: don't select LOGO_LINUX_MONO and LOGO_LINUX_VGA16 by defaultVincent Mailhol-2/+0
Nowadays, nearly all systems have a color depth of eight or more and are thus able to display the clut224 logo. This means that the monochrome and vga16 logos will never be displayed on an average machine and are thus just a waste of bytes. Set CONFIG_LOGO_LINUX_MONO and CONFIG_LOGO_LINUX_VGA16 configuration symbols to no by default. Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: move logo selection logic to KconfigVincent Mailhol-86/+11
Now that the path to the logo file can be directly entered in Kbuild, there is no more need to handle all the logo file selection in the Makefile and the C files. The only exception is the logo_spe_clut224 which is only used by the Cell processor (found for example in the Playstation 3) [1]. This extra logo uses its own different image which shows up on a separate line just below the normal logo. Because the extra logo uses a different image, it can not be factorized under the custom logo logic. Move all the logo file selection logic to Kbuild (except from the logo_spe_clut224.ppm), this done, clean-up the C code to only leave one entry for each logo type (monochrome, 16-colors and 224-colors). [1] Cell SPE logos Link: https://lore.kernel.org/all/20070710122702.765654000@pademelon.sonytel.be/ Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: remove logo_mac_clut224Vincent Mailhol-1615/+1
The logo_mac_clut224 depends on the runtime value MACH_IS_MAC being true to be displayed. This makes that logo a one-of-a-kind, as it is the only one whose selection can not be decided at compile time. This dynamic logo selection logic conflicts with our upcoming plans to simplify the logo selection code. Considering that the logo_mac_clut224 is only used by the Macintosh 68k, a machine whose sales ended some thirty years ago and which thus represents a very small user base, it is preferable to resolve the conflict in favour of code simplicity. Remove the logo_mac_clut224 so that the logo selection can be statically determined at compile time. The users who wish to continue using that logo can still download it from [1] and add: CONFIG_LOGO_LINUX_CLUT224=y CONFIG_LOGO_LINUX_CLUT224_FILE="/path/to/logo_mac_clut224.ppm" to their configuration file to restore it. [1] logo_mac_clut224.ppm file Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/plain/drivers/video/logo/logo_mac_clut224.ppm?h=v6.18 Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14newport_con: depend on LOGO_LINUX_CLUT224 instead of LOGO_SGI_CLUT224Vincent Mailhol-2/+2
newport_show_logo() is only activated if CONFIG_LOGO_SGI_CLUT224 is set (otherwise it is a NOP). This configuration item will be removed in an upcoming change so instead, make it depend on LOGO_LINUX_CLUT224. Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: allow custom logoVincent Mailhol-1/+51
Some people like to replace the default Tux boot logo by an image of their own. There exist a few tutorials here [1] and there [2]. But this requires modifying the source tree which is a bit cumbersome. Add a string entry in Kbuild for each of the logo categories (monochrome, 16-colors, 224-colors). The string entry takes a path to a .pbm or .ppm image allowing the user to more easily provide a custom logo without having to modify the sources. Add an help entry with a short hint on how to convert images to the portable pixmap file format. Update the Makefile accordingly. When converted to .c file, the logo will have one of these fixed file name: - logo_linux_mono.c - logo_linux_vga16.c - logo_linux_clut224.c: depending on the image type and this regardless of the name of the .pgm/.ppm source filename. This will allow for further simplifications in an upcoming change. [1] ArmadeuS Project wiki -- Linux Boot Logo Link: https://www.armadeus.org/wiki/index.php?title=Linux_Boot_Logo [2] Timesys -- How To Use a Custom Boot Logo / Splash Screen Link: https://linuxlink.timesys.com/docs/wiki/engineering/HOWTO_Use_a_custom_boot_logo Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: add a type parameter to the logo makefile functionVincent Mailhol-4/+7
When translating a portable pixmap file into a .c file, the pnmtologo tool expects to receive the image type (either mono, vga16 or clut224) as an argument under the -t option. Currently, this information is stored in the file name. Because we will allow for custom logo in an upcoming change, it is preferable to decouple the image name from its type. Add a new $2 parameter to the Makefile logo function which contains the image type. Update all the individual targets to provide this new argument. Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14video/logo: remove orphan .pgm Makefile ruleVincent Mailhol-4/+1
The kernel has no actual grey-scale logos. And looking at the git history, it seems that there never was one (or maybe there was in the pre-git history? I did not check that far…) Remove the Makefile rule for the .pgm grey scale images. Signed-off-by: Vincent Mailhol <mailhol@kernel.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: omapfb: remove duplicate check in omapfb_setup_mem()Dan Carpenter-6/+4
We know "size" is non-zero because it is checked on the line before. Delete the duplicate check and pull the code in a tab. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: sh_mobile_lcdc: Make FB_DEVICE dependency optionalChintan Patel-1/+4
The sh_mobile_lcdc driver exposes overlay configuration via sysfs, but the core driver does not require CONFIG_FB_DEVICE. Make overlay sysfs optional so that the driver can build and operate even when FB_DEVICE is disabled. The kernel naturally ignores the missing attribute group, preserving buildability and type safety. Suggested-by: Helge Deller <deller@gmx.de> Signed-off-by: Chintan Patel <chintanlike@gmail.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: omapfb: Make FB_DEVICE dependency optionalChintan Patel-5/+16
omapfb provides several sysfs interfaces for framebuffer configuration and debugging, but these are not required for the core driver. Remove the hard dependency on CONFIG_FB_DEVICE and make sysfs support optional by using dev_of_fbinfo() to obtain the backing device at runtime. When FB_DEVICE is disabled, sysfs operations are skipped while the code still builds and is type-checked. Suggested-by: Helge Deller <deller@gmx.de> Signed-off-by: Chintan Patel <chintanlike@gmail.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbcon: check return value of con2fb_acquire_newinfo()Andrey Vatoropin-1/+2
If fbcon_open() fails when called from con2fb_acquire_newinfo() then info->fbcon_par pointer remains NULL which is later dereferenced. Add check for return value of the function con2fb_acquire_newinfo() to avoid it. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: d1baa4ffa677 ("fbcon: set_con2fb_map fixes") Cc: stable@vger.kernel.org Signed-off-by: Andrey Vatoropin <a.vatoropin@crpt.ru> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: hyperv_fb: Remove hyperv_fb driverPrasanna Kumar T S M-1400/+0
The HyperV DRM driver is available since 5.14. This makes the hyperv_fb driver redundant, remove it. Signed-off-by: Prasanna Kumar T S M <ptsm@linux.microsoft.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: Use device_create_with_groups() to fix sysfs groups registration raceHans de Goede-33/+3
The fbdev sysfs attributes are registered after sending the uevent for the device creation, leaving a race window where e.g. udev rules may not be able to access the sysfs attributes because the registration is not done yet. Fix this by switching to device_create_with_groups(). This also results in a nice cleanup. After switching to device_create_with_groups() all that is left of fb_init_device() is setting the drvdata and that can be passed to device_create[_with_groups]() too. After which fb_init_device() can be completely removed. Dropping fb_init_device() + fb_cleanup_device() in turn allows removing fb_info.class_flag as they were the only user of this field. Fixes: 5fc830d6aca1 ("fbdev: Register sysfs groups through device_add_group") Cc: stable@vger.kernel.org Cc: Shixiong Ou <oushixiong@kylinos.cn> Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: smscufx: properly copy ioctl memory to kernelspaceGreg Kroah-Hartman-2/+6
The UFX_IOCTL_REPORT_DAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid data is passed from userspace. Fix this all up by correctly copying the memory before accessing it within the kernel. Reported-by: Tianchu Chen <flynnnchen@tencent.com> Cc: stable <stable@kernel.org> Cc: Steve Glendinning <steve.glendinning@shawell.net> Cc: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-14fbdev: rivafb: fix divide error in nv3_arb()Guangshuo Li-0/+3
A userspace program can trigger the RIVA NV3 arbitration code by calling the FBIOPUT_VSCREENINFO ioctl on /dev/fb*. When doing so, the driver recomputes FIFO arbitration parameters in nv3_arb(), using state->mclk_khz (derived from the PRAMDAC MCLK PLL) as a divisor without validating it first. In a normal setup, state->mclk_khz is provided by the real hardware and is non-zero. However, an attacker can construct a malicious or misconfigured device (e.g. a crafted/emulated PCI device) that exposes a bogus PLL configuration, causing state->mclk_khz to become zero. Once nv3_get_param() calls nv3_arb(), the division by state->mclk_khz in the gns calculation causes a divide error and crashes the kernel. Fix this by checking whether state->mclk_khz is zero and bailing out before doing the division. The following log reveals it: rivafb: setting virtual Y resolution to 2184 divide error: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 2187 Comm: syz-executor.0 Not tainted 5.18.0-rc1+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:nv3_arb drivers/video/fbdev/riva/riva_hw.c:439 [inline] RIP: 0010:nv3_get_param+0x3ab/0x13b0 drivers/video/fbdev/riva/riva_hw.c:546 Call Trace: nv3CalcArbitration.constprop.0+0x255/0x460 drivers/video/fbdev/riva/riva_hw.c:603 nv3UpdateArbitrationSettings drivers/video/fbdev/riva/riva_hw.c:637 [inline] CalcStateExt+0x447/0x1b90 drivers/video/fbdev/riva/riva_hw.c:1246 riva_load_video_mode+0x8a9/0xea0 drivers/video/fbdev/riva/fbdev.c:779 rivafb_set_par+0xc0/0x5f0 drivers/video/fbdev/riva/fbdev.c:1196 fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1033 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1109 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1188 __x64_sys_ioctl+0x122/0x190 fs/ioctl.c:856 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2026-02-11Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds-25/+0
Pull drm updates from Dave Airlie: "Highlights: - amdgpu support for lots of new IP blocks which means newer GPUs - xe has a lot of SR-IOV and SVM improvements - lots of intel display refactoring across i915/xe - msm has more support for gen8 platforms - Given up on kgdb/kms integration, it's too hard on modern hw core: - drop kgdb support - replace system workqueue with percpu - account for property blobs in memcg - MAINTAINERS updates for xe + buddy rust: - Fix documentation for Registration constructors - Use pin_init::zeroed() for fops initialization - Annotate DRM helpers with __rust_helper - Improve safety documentation for gem::Object::new() - Update AlwaysRefCounted imports - mm: Prevent integer overflow in page_align() atomic: - add drm_device pointer to drm_private_obj - introduce gamma/degamma LUT size check buddy: - fix free_trees memory leak - prevent BUG_ON bridge: - introduce drm_bridge_unplug/enter/exit - add connector argument to .hpd_notify - lots of recounting conversions - convert rockchip inno hdmi to bridge - lontium-lt9611uxc: switch to HDMI audio helpers - dw-hdmi-qp: add support for HPD-less setups - Algoltek AG6311 support panels: - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H - st75751: add SPI support - Sitronix ST7920, Samsung LTL106HL02 - LG LH546WF1-ED01, HannStar HSD156J - BOE NV130WUM-T08 - Innolux G150XGE-L05 - Anbernic RG-DS dma-buf: - improve sg_table debugging - add tracepoints - call clear_page instead of memset - start to introduce cgroup memory accounting in heaps - remove sysfs stats dma-fence: - add new helpers dp: - mst: avoid oob access with vcpi=0 hdmi: - limit infoframes exposure to userspace gem: - reduce page table overhead with THP - fix leak in drm_gem_get_unmapped_area gpuvm: - API sanitation for rust bindings sched: - introduce new helpers panic: - report invalid panic modes - add kunit tests i915/xe display: - Expose sharpness only if num_scalers is >= 2 - Add initial Xe3P_LPD for NVL - BMG FBC support - Add MTL+ platforms to support dpll framework _ fix DIMM_S DRM decoding on ICL - Return to using AUX interrupts - PSR/Panel replay refactoring - use consolidation HDMI tables - Xe3_LPD CD2X dividier changes xe: - vfio: add vfio_pci for intel GPU - multi queue support - dynamic pagemaps and multi-device SVM - expose temp attribs in hwmon - NO_COMPRESSION bo flag - expose MERT OA unit - sysfs survivability refactor - SRIOV PF: add MERT support - enable SR-IOV VF migration - Enable I2C/NVM on Crescent Island - Xe3p page reclaimation support - introduce SRIOV scheduler groups - add SoC remappt support in system controller - insert compiler barriers in GuC code - define NVL GuC firmware - handle GT resume failure - fix drm scheduler layering violations - enable GSC loading and PXP for PTL - disable GuC Power DCC strategy on PTL - unregister drm device on probe error i915: - move to kernel standard fault injection - bump recommended GuC version for DG2 and MTL amdgpu: - SMUIO 15.x, PSP 15.x support - IH 6.1.1/7.1 support - MMHUB 3.4/4.2 support - GC 11.5.4/12.1 support - SDMA 6.1.4/7.1/7.11.4 support - JPEG 5.3 support - UserQ updates - GC 9 gfx queue reset support - TTM memory ops parallelization - convert legacy logging to new helpers - DC analog fixes amdkfd: - GC 11.5.4/12.1 suppport - SDMA 6.1.4/7.1 support - per context support - increase kfd process hash table - Reserved SDMA rework radeon: - convert legacy logging to new helpers - use devm for i2c adapters msm: - GPU - Document a612/RGMU dt bindings - UBWC 6.0 support (for A840 / Kaanapali) - a225 support - DPU: - Switch to use virtual planes by default - Fix DSI CMD panels on DPU 3.x - Rewrite format handling to remove intermediate representation - Fix watchdog on DPU 8.x+ - Fix TE / Vsync source setting on DPU 8.x+ - Add 3D_Mux on SC7280 - Kaanapali platform support - Fix UBWC register programming - Make RM reserve DSPP-enabled mixers for CRTCs with LMs - Gamma correction support - DP: - Enable support for eDP 1.4+ link rate tables - Fix MDSS1 DP indices on SA8775P, making them to work - Fix msm_dp_ctrl_config_msa() to work with LLVM 20 - DSI: - Document QCS8300 as compatible with SA8775P - Kaanapali platform support - DSI PHY: - switch to divider_determine_rate() - MDP5: - Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU) - MDSS: - Kaanapali platform support - Fixed UBWC register programming nova-core: - Prepare for Turing support. This includes parsing and handling Turing-specific firmware headers and sections as well as a Turing Falcon HAL implementation - Get rid of the Result<impl PinInit<T, E>> anti-pattern - Relocate initializer-specific code into the appropriate initializer - Use CStr::from_bytes_until_nul() to remove custom helpers - Improve handling of unexpected firmware values - Clean up redundant debug prints - Replace c_str!() with native Rust C-string literals - Update nova-core task list nova: - Align GEM object size to system page size tyr: - Use generated uAPI bindings for GpuInfo - Replace manual sleeps with read_poll_timeout() - Replace c_str!() with native Rust C-string literals - Suppress warnings for unread fields - Fix incorrect register name in print statement nouveau: - fix big page table support races in PTE management - improve reclocking on tegra 186+ amdxdna: - fix suspend race conditions - improve handling of zero tail pointers - fix cu_idx overwritten during command setup - enable hardware context priority - remove NPU2 support - update message buffer allocation requirements - update firmware version check ast: - support imported cursor buffers - big endian fixes etnaviv: - add PPU flop reset support imagination: - add AM62P support - introduce hw version checks ivpu: - implement warm boot flow panfrost: - add bo sync ioctl - add GPU_PM_RT support for RZ/G3E SoC panthor: - add bo sync ioctl - enable timestamp propagation - scheduler robustness improvements - VM termination fixes - huge page support rockchip: - RK3368 HDMI Support - get rid of atomic_check fixups - RK3506 support - RK3576/RK3588 improved HPD handling rz-du: - RZ/V2H(P) MIPI-DSI Support v3d: - fix DMA segment size - convert to new logging helpers mediatek: - move DP training to hotplug thread - convert logging to new helpers - add support for HS speed DSI - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support atmel-hlcdc: - switch to drmm resource - support nomodeset - use newer helpers hisilicon: - fix various DP bugs renesas: - fix kernel panic on reboot exynos: - fix vidi_connection_ioctl using wrong device - fix vidi_connection deref user ptr - fix concurrency regression with vidi_context vkms: - add configfs support for display configuration * tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits) drm/xe/pm: Disable D3Cold for BMG only on specific platforms drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early drm/xe: Fix kerneldoc for xe_migrate_exec_queue drm/xe/query: Fix topology query pointer advance drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header drm/xe/guc: Fix CFI violation in debugfs access. accel/amdxdna: Move RPM resume into job run function accel/amdxdna: Fix incorrect DPM level after suspend/resume nouveau/vmm: start tracking if the LPT PTE is valid. (v6) nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2) nouveau/vmm: rewrite pte tracker using a struct and bitfields. accel/amdxdna: Fix incorrect error code returned for failed chain command accel/amdxdna: Remove hardware context status drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe() drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc drm/i915/display: fix the pixel normalization handling for xe3p_lpd drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free drm/exynos: vidi: fix to avoid directly dereferencing user pointer drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() ...
2026-02-04backlight: qcom-wled: Change PM8950 WLED configurationsBarnabás Czémán-1/+2
PMI8950 WLED needs same configurations as PMI8994 WLED. Fixes: 10258bf4534b ("backlight: qcom-wled: Add PMI8950 compatible") Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org> Link: https://patch.msgid.link/20260116-pmi8950-wled-v3-4-e6c93de84079@mainlining.org Signed-off-by: Lee Jones <lee@kernel.org>
2026-02-04backlight: qcom-wled: Support ovp values for PMI8994Barnabás Czémán-2/+39
WLED4 found in PMI8994 supports different ovp values. Fixes: 6fc632d3e3e0 ("video: backlight: qcom-wled: Add PMI8994 compatible") Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org> Link: https://patch.msgid.link/20260116-pmi8950-wled-v3-2-e6c93de84079@mainlining.org Signed-off-by: Lee Jones <lee@kernel.org>
2026-01-20backlight: aw99706: Fix build errors caused by wrong gpio headerJunjie Cao-1/+1
The driver uses GPIO descriptor API (devm_gpiod_get, gpiod_set_value_cansleep, GPIOD_OUT_LOW) but includes the legacy <linux/gpio.h> header instead of <linux/gpio/consumer.h>. When CONFIG_GPIOLIB is not set, <linux/gpio.h> does not include <linux/gpio/consumer.h>, causing build errors: error: implicit declaration of function 'gpiod_set_value_cansleep' error: implicit declaration of function 'devm_gpiod_get' error: 'GPIOD_OUT_LOW' undeclared Fix by including the correct header <linux/gpio/consumer.h>. Fixes: 147b38a5ad06 ("backlight: aw99706: Add support for Awinic AW99706 backlight") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202512171631.uKXlYwqu-lkp@intel.com/ Signed-off-by: Junjie Cao <junjie.cao@intel.com> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org> Link: https://patch.msgid.link/20260111130117.5041-1-junjie.cao@intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2026-01-08backlight: Add Congatec Board Controller (CGBC) backlight supportPetri Karhula-0/+192
This driver provides backlight brightness control through the Linux backlight subsystem. It communicates with the board controller to adjust LCD backlight using PWM signals. Communication is done through Congatec Board Controller core driver. Tested-by: Thomas Richard <thomas.richard@bootlin.com> Reviewed-by: Thomas Richard <thomas.richard@bootlin.com> Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org> Signed-off-by: Petri Karhula <petri.karhula@novatron.fi> Link: https://patch.msgid.link/20251205-cgbc-backlight-v6-1-e4175b0bf406@novatron.fi Signed-off-by: Lee Jones <lee@kernel.org>
2025-12-26Merge tag 'drm-misc-next-2025-12-12' of ↵Dave Airlie-25/+0
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for 6.19: UAPI Changes: - panfrost: Add PANFROST_BO_SYNC ioctl - panthor: Add PANTHOR_BO_SYNC ioctl Core Changes: - atomic: Add drm_device pointer to drm_private_obj - bridge: Introduce drm_bridge_unplug, drm_bridge_enter, and drm_bridge_exit - dma-buf: Improve sg_table debugging - dma-fence: Add new helpers, and use them when needed - dp_mst: Avoid out-of-bounds access with VCPI==0 - gem: Reduce page table overhead with transparent huge pages - panic: Report invalid panic modes - sched: Add TODO entries - ttm: Various cleanups - vblank: Various refactoring and cleanups - Kconfig cleanups - Removed support for kdb Driver Changes: - amdxdna: Fix race conditions at suspend, Improve handling of zero tail pointers, Fix cu_idx being overwritten during command setup - ast: Support imported cursor buffers - - panthor: Enable timestamp propagation, Multiple improvements and fixes to improve the overall robustness, notably of the scheduler. - panels: - panel-edp: Support for CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H Signed-off-by: Dave Airlie <airlied@redhat.com> [airlied: fix mm conflict] From: Maxime Ripard <mripard@redhat.com> Link: https://patch.msgid.link/20251212-spectacular-agama-of-abracadabra-aaef32@penduick
2025-12-16efi: Support EDID informationThomas Zimmermann-3/+5
In the EFI config table, rename LINUX_EFI_SCREEN_INFO_TABLE_GUID to LINUX_EFI_PRIMARY_DISPLAY_TABLE_GUID. Read sysfb_primary_display from the entry. In addition to the screen_info, the entry now also contains EDID information. In libstub, replace struct screen_info with struct sysfb_display_info from the kernel's sysfb_primary_display and rename functions accordingly. Transfer it to the runtime kernel using the kernel's global state or the LINUX_EFI_PRIMARY_DISPLAY_TABLE_GUID config-table entry. With CONFIG_FIRMWARE_EDID=y, libstub now transfers the GOP device's EDID information to the kernel. If CONFIG_FIRMWARE_EDID=n, EDID information is disabled. Make the Kconfig symbol CONFIG_FIRMWARE_EDID available with EFI. Setting the value to 'n' disables EDID support. Also rename screen_info.c to primary_display.c and adapt the contained comment according to the changes. Link: https://lore.kernel.org/all/20251126160854.553077-8-tzimmermann@suse.de/ Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> [ardb: depend on EFI_GENERIC_STUB not EFI, fix conflicts after dropping the preceding patch from the series] Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-12-16sysfb: Move edid_info into sysfb_primary_displayThomas Zimmermann-3/+5
Move x86's edid_info into sysfb_primary_display as a new field named edid. Adapt all users. An instance of edid_info has only been defined on x86. With the move into sysfb_primary_display, it becomes available on all architectures. Therefore remove this contraint from CONFIG_FIRMWARE_EDID. x86 fills the EDID data from boot_params.edid_info. DRM drivers pick up the raw data and make it available to DRM clients. Replace the drivers' references to edid_info and instead use the sysfb_display_info as passed from sysfb. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-12-16sysfb: Pass sysfb_primary_display to devicesThomas Zimmermann-11/+17
Instead of screen_info, store a copy of sysfb_primary_display as device data. Pick it up in drivers. Later changes will add additional data to the display info, such as EDID information. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ard Biesheuvel <ardb@kernel.org> Reviewed-by: Richard Lyu <richard.lyu@suse.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-12-16sysfb: Replace screen_info with sysfb_primary_displayThomas Zimmermann-2/+3
Replace the global screen_info with sysfb_primary_display of type struct sysfb_display_info. Adapt all users of screen_info. Instances of screen_info are defined for x86, loongarch and EFI, with only one instance compiled into a specific build. Replace all of them with sysfb_primary_display. All existing users of screen_info are updated by pointing them to sysfb_primary_display.screen instead. This introduces some churn to the code, but has no impact on functionality. Boot parameters and EFI config tables are unchanged. They transfer screen_info as before. The logic in EFI's alloc_screen_info() changes slightly, as it now returns the screen field of sysfb_primary_display. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # drivers/pci/ Reviewed-by: Richard Lyu <richard.lyu@suse.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-12-06Merge tag 'fbdev-for-6.19-rc1' of ↵Linus Torvalds-56/+69
git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev Pull fbdev updates from Helge Deller: "The Termius 10x18 console bitmap font has been added. It is good match for modern 13-16 inch laptop displays with resolutions like 1280x800 and 1440x900 pixels. The gbefb and tcx.c drivers got some fixes to restore X11 support, pxafb was not actually clamping input values and the ssd1307fb driver leaked memory in the failure path. The other patches convert some common drivers to use dev_info() and dev_dbg() instead of printk(). Summary: Framework updates: - fonts: Add Terminus 10x18 console font [Neilay Kharwadkar] Driver fixes: - gbefb: fix to use physical address instead of dma address [René Rebe] - tcx.c fix mem_map to correct smem_start offset [René Rebe] - pxafb: Fix multiple clamped values in pxafb_adjust_timing [Thorsten Blum] - ssd1307fb: fix potential page leak in ssd1307fb_probe() [Abdun Nihaal] Cleanups: - vga16fb: Request memory region [Javier Garcia] - vga16fb: replace printk() with dev_*() in probe [Vivek BalachandharTN] - vesafb, gxt4500fb, tridentfb: Use dev_dbg() instead of printk() [Javier Garcia] - i810: use dev_info() [Shi Hao]" * tag 'fbdev-for-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: ssd1307fb: fix potential page leak in ssd1307fb_probe() fbdev: i810: use appopriate log interface dev_info fbdev: tridentfb: replace printk() with dev_*() in probe lib/fonts: Add Terminus 10x18 console font fbdev: pxafb: Fix multiple clamped values in pxafb_adjust_timing fbdev: tcx.c fix mem_map to correct smem_start offset fbdev: gxt4500fb: Use dev_err instead of printk fbdev: gbefb: fix to use physical address instead of dma address fbdev: vesafb: Use dev_* fn's instead printk fbdev: vga16fb: Request memory region fbdev: vga16fb: replace printk() with dev_*() in probe
2025-12-05fbdev: ssd1307fb: fix potential page leak in ssd1307fb_probe()Abdun Nihaal-1/+3
The page allocated for vmem using __get_free_pages() is not freed on the error paths after it. Fix that by adding a corresponding __free_pages() call to the error path. Fixes: facd94bc458a ("fbdev: ssd1307fb: Allocate page aligned video memory.") Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in> Signed-off-by: Helge Deller <deller@gmx.de>
2025-12-04Merge tag 'backlight-next-6.19' of ↵Linus Torvalds-0/+494
git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight Pull backlight updates from Lee Jones: "Additions: - Add support for Awinic AW99706 backlight driver Fixes: - Add GPIOLIB dependency to backlight ktd2801 driver - Add devlink to LED Backlight's supplier LEDs to enforce correct removal order and prevent NULL pointer dereferences - Fix kernel-doc warnings in lp855x.h Removals: - Do not include <linux/fb.h> in backlight.h - Fix unused function warnings from suspend/resume ops in aw99706.c by switching to DEFINE_SIMPLE_DEV_PM_OPS and using pm_ptr() Bindings: - Add Awinic AW99706 backlight binding to MAINTAINERS - Add Awinic AW99706 backlight binding documentation" * tag 'backlight-next-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: aw99706: Fix unused function warnings from suspend/resume ops backlight: lp855x: Fix lp855x.h kernel-doc warnings dt-bindings: leds: backlight: Add Awinic AW99706 backlight backlight: aw99706: Add support for Awinic AW99706 backlight backlight: led-bl: Add devlink to supplier LEDs backlight: ktd2801: Depend on GPIOLIB backlight: Do not include <linux/fb.h> in header file