Changes in sysfs-class-backlight

ab93e0dd72c37d378dd936f031ffb83ff2bd87ce - Merge branch 'next' into for-linus

Wed, 06 Aug 2025 19:08:54 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.17 merge window. List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

a7bee4e7f78089c101be2ad51f4b5ec64782053e - Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into next

Mon, 04 Aug 2025 08:28:48 +0200

Merge tag 'ib-mfd-gpio-input-pwm-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd into nextMerge an immutable branch between MFD, GPIO, Input and PWM to resolveconflicts for the merge window pull request. List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

74f1af95820fc2ee580a775a3a17c416db30b38c - Merge remote-tracking branch 'drm/drm-next' into msm-next

Sun, 29 Jun 2025 04:54:49 +0200

Merge remote-tracking branch 'drm/drm-next' into msm-nextBack-merge drm-next to (indirectly) get arm-smmu updates for makingstall-on-fault more reliable.Signed-off-by: Rob Clark List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

86e2d052c2320bf12571a5d96b16c2745e1cfc5e - Merge drm/drm-next into drm-xe-next

Mon, 09 Jun 2025 18:26:55 +0200

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.16Signed-off-by: Thomas Hellström List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

bbfd5594756011167b8f8de9a00e0c946afda1e6 - Merge drm/drm-next into drm-intel-gt-next

Wed, 28 May 2025 09:20:17 +0200

Merge drm/drm-next into drm-intel-gt-nextNeed to pull in a67221b5eb8d ("drm/i915/dp: Return min bpc supported by source instead of 0")in order to fix build breakage on GCC 9.4.0 (from Ubuntu 20.04).Signed-off-by: Joonas Lahtinen List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

db5302ae571beec635c1a96e7f72926a4e65195e - Merge drm/drm-next into drm-intel-next

Fri, 16 May 2025 09:22:36 +0200

Merge drm/drm-next into drm-intel-nextBackmerge to sync with v6.15-rc, xe, and specifically async flip changesin drm-misc.Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

b08494a8f7416e5f09907318c5460ad6f6e2a548 - Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel

Wed, 28 May 2025 18:46:39 +0200

Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernelPull drm updates from Dave Airlie: "As part of building up nova-core/nova-drm pieces we've brought in some rust abstractions through this tree, aux bus being the main one, with devres changes also in the driver-core tree. Along with the drm core abstractions and enough nova-core/nova-drm to use them. This is still all stub work under construction, to build the nova driver upstream. The other big NVIDIA related one is nouveau adds support for Hopper/Blackwell GPUs, this required a new GSP firmware update to 570.144, and a bunch of rework in order to support multiple fw interfaces. There is also the introduction of an asahi uapi header file as a precursor to getting the real driver in later, but to unblock userspace mesa packages while the driver is trapped behind rust enablement. Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe, and msm being the main ones, and some changes to vsprintf. new drivers: - bring in the asahi uapi header standalone - nova-drm: stub driver rust dependencies (for nova-core): - auxiliary - bus abstractions - driver registration - sample driver - devres changes from driver-core - revocable changes core: - add Apple fourcc modifiers - add virtio capset definitions - extend EXPORT_SYNC_FILE for timeline syncobjs - convert to devm_platform_ioremap_resource - refactor shmem helper page pinning - DP powerup/down link helpers - extended %p4cc in vsprintf.c to support fourcc prints - change vsprintf %p4cn to %p4chR, remove %p4cn - Add drm_file_err function - IN_FORMATS_ASYNC property - move sitronix from tiny to their own subdir rust: - add drm core infrastructure rust abstractions (device/driver, ioctl, file, gem) dma-buf: - adjust sg handling to not cache map on attach - allow setting dma-device for import - Add a helper to sort and deduplicate dma_fence arrays docs: - updated drm scheduler docs - fbdev todo update - fb rendering - actual brightness ttm: - fix delayed destroy resv object bridge: - add kunit tests - convert tc358775 to atomic - convert drivers to devm_drm_bridge_alloc - convert rk3066_hdmi to bridge driver scheduler: - add kunit tests panel: - refcount panels to improve lifetime handling - Powertip PH128800T004-ZZA01 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00 - Himax HX8279/HX8279-D DDIC - Visionox G2647FB105 - Sitronix ST7571 - ZOTAC rotation quirk vkms: - allow attaching more displays i915: - xe3lpd display updates - vrr refactor - intel_display struct conversions - xe2hpd memory type identification - add link rate/count to i915_display_info - cleanup VGA plane handling - refactor HDCP GSC - fix SLPC wait boosting reference counting - add 20ms delay to engine reset - fix fence release on early probe errors xe: - SRIOV updates - BMG PCI ID update - support separate firmware for each GT - SVM fix, prelim SVM multi-device work - export fan speed - temp disable d3cold on BMG - backup VRAM in PM notifier instead of suspend/freeze - update xe_ttm_access_memory to use GPU for non-visible access - fix guc_info debugfs for VFs - use copy_from_user instead of __copy_from_user - append PCIe gen5 limitations to xe_firmware document amdgpu: - DSC cleanup - DC Scaling updates - Fused I2C-over-AUX updates - DMUB updates - Use drm_file_err in amdgpu - Enforce isolation updates - Use new dma_fence helpers - USERQ fixes - Documentation updates - SR-IOV updates - RAS updates - PSP 12 cleanups - GC 9.5 updates - SMU 13.x updates - VCN / JPEG SR-IOV updates amdkfd: - Update error messages for SDMA - Userptr updates - XNACK fixes radeon: - CIK doorbell cleanup nouveau: - add support for NVIDIA r570 GSP firmware - enable Hopper/Blackwell support nova-core: - fix task list - register definition infrastructure - move firmware into own rust module - register auxiliary device for nova-drm nova-drm: - initial driver skeleton msm: - GPU: - ACD (adaptive clock distribution) for X1-85 - drop fictional address_space_size - improve GMU HFI response time out robustness - fix crash when throttling during boot - DPU: - use single CTL path for flushing on DPU 5.x+ - improve SSPP allocation code for better sharing - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550 - Added SAR2130P support - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660 - DP: - switch to new audio helpers - better LTTPR handling - DSI: - Added support for SA8775P - Added SAR2130P support - HDMI: - Switched to use new helpers for ACR data - Fixed old standing issue of HPD not working in some cases amdxdna: - add dma-buf support - allow empty command submits renesas: - add dma-buf support - add zpos, alpha, blend support panthor: - fail properly for NO_MMAP bos - add SET_LABEL ioctl - debugfs BO dumping support imagination: - update DT bindings - support TI AM68 GPU hibmc: - improve interrupt handling and HPD support virtio: - add panic handler support rockchip: - add RK3588 support - add DP AUX bus panel support ivpu: - add heartbeat based hangcheck mediatek: - prepares support for MT8195/99 HDMIv2/DDCv2 anx7625: - improve HPD tegra: - speed up firmware loading* tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits) drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr() drm/xe: Default auto_link_downgrade status to false drm/xe/guc: Make creation of SLPC debugfs files conditional drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue() drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read drm/i915/ptl: Use everywhere the correct DDI port clock select mask drm/nouveau/kms: add support for GB20x drm/dp: add option to disable zero sized address only transactions. drm/nouveau: add support for GB20x drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle drm/nouveau: add support for GB10x drm/nouveau/gf100-: track chan progress with non-WFI semaphore release drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos drm/nouveau: add support for GH100 drm/nouveau: improve handling of 64-bit BARs drm/nouveau/gv100-: switch to volta semaphore methods drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM ... List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

f9fa01229339daea915c8f2a3df8d6f6a89f9b84 - Merge tag 'drm-misc-next-2025-05-08' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

Sat, 10 May 2025 08:13:46 +0200

Merge tag 'drm-misc-next-2025-05-08' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-nextdrm-misc-next for v6.16-rc1:Cross-subsystem Changes:- Change vsprintf %p4cn to %p4chR, remove %p4cn.Core Changes:- Documentation updates (fb rendering, actual_brightness)Driver Changes:- Small fixes to appletbdrm, panthor, st7571-i2c, rockchip, renesas, panic handler, gpusvm, vkms, panel timings.- Add AUO B140QAN08.H, BOE NE140WUM-N6S, CSW MNE007QS3-8, BOE TD4320 panels.- Convert rk3066_hdmi to bridge driver.- Improve HPD on anx7625.- Speed up loading tegra firmware, and other small fixes to tegra & host1x.Signed-off-by: Dave Airlie From: Maarten Lankhorst Link: https://lore.kernel.org/r/5428be12-fc08-4e28-8c5f-85d73b8a7e04@linux.intel.com List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

8ecd32b668238a7a79b2f44b66dae8ffb87ac763 - docs: backlight: Clarify `actual_brightness`

Tue, 15 Apr 2025 21:20:59 +0200

docs: backlight: Clarify `actual_brightness`Currently userspace software systemd treats `brightness` and`actual_brightness` identically due to a bug found in an out of treedriver.This however causes problems for in-tree drivers that use brightnessto report user requested `brightness` and `actual_brightness` to reportwhat the hardware actually has programmed.Clarify the documentation to match the behavior described in commit6ca017658b1f9 ("[PATCH] backlight: Backlight Class Improvements").Cc: Lee Jones Cc: Lennart Poettering Cc: richard.purdie@linuxfoundation.orgLink: https://github.com/systemd/systemd/pull/36881Reviewed-by: Harry Wentland Link: https://lore.kernel.org/r/20250415192101.2033518-1-superm1@kernel.orgSigned-off-by: Mario Limonciello List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 10:29:14 +0100

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

36ec807b627b4c0a0a382f0ae48eac7187d14b2b - Merge branch 'next' into for-linus

Fri, 20 Sep 2024 10:24:24 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.12 merge window. List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

f057b57270c2a17d3f45c177e9434fa5745caa48 - Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into next

Fri, 06 Sep 2024 06:49:07 +0200

Merge branch 'ib/6.11-rc6-matrix-keypad-spitz' into nextBring in changes removing support for platform data from matrix-keypaddriver. List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

66e72a01b60ae6950ddbb3585fdc1424d303e14b - Merge tag 'v6.11-rc1' into clk-meson-next

Mon, 29 Jul 2024 16:32:02 +0200

Merge tag 'v6.11-rc1' into clk-meson-nextLinux 6.11-rc1 List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

ee057c8c194b9283f4137b253b70e292693a39f0 - Merge tag 'v6.11-rc3' into trace/ring-buffer/core

Wed, 14 Aug 2024 22:56:42 +0200

Merge tag 'v6.11-rc3' into trace/ring-buffer/coreThe "reserve_mem" kernel command line parameter has been pulled intov6.11. Merge the latest -rc3 to allow the persistent ring buffer memory tobe able to be mapped at the address specified by the "reserve_mem" commandline parameter.Signed-off-by: Steven Rostedt (Google) List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

c8faf11cd192214e231626c3ee973a35d8fc33f2 - Merge tag 'v6.11-rc1' into for-6.12

Tue, 30 Jul 2024 21:30:11 +0200

Merge tag 'v6.11-rc1' into for-6.12Linux 6.11-rc1 List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

ed7171ff9fabc49ae6ed42fbd082a576473836fc - Merge drm/drm-next into drm-xe-next

Fri, 16 Aug 2024 19:05:54 +0200

Merge drm/drm-next into drm-xe-nextGet drm-xe-next on v6.11-rc2 and synchronized with drm-intel-next forthe display side. This resolves the current conflict for theenable_display module parameter and allows further pending refactors.Signed-off-by: Lucas De Marchi List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

5c61f59824b5e46516ea5d0543ad7a8871567416 - Merge drm/drm-next into drm-misc-next

Mon, 12 Aug 2024 14:14:18 +0200

Merge drm/drm-next into drm-misc-nextGet drm-misc-next to the state of v6.11-rc2.Signed-off-by: Thomas Zimmermann List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

3663e2c4bc45fcdc71931fcbfcbfbf9b71f55c83 - Merge drm/drm-next into drm-intel-next

Thu, 01 Aug 2024 12:06:09 +0200

Merge drm/drm-next into drm-intel-nextSync with v6.11-rc1 in general, and specifically get the newBACKLIGHT_POWER_ constants for power states.Signed-off-by: Jani Nikula List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

4436e6da008fee87d54c038e983e5be9a6baf8fb - Merge branch 'linus' into x86/mm

Fri, 02 Aug 2024 14:10:55 +0200

Merge branch 'linus' into x86/mmBring x86 and selftests up to date List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight

a1ff5a7d78a036d6c2178ee5acd6ba4946243800 - Merge drm/drm-fixes into drm-misc-fixes

Tue, 30 Jul 2024 09:09:23 +0200

Merge drm/drm-fixes into drm-misc-fixesLet's start the new drm-misc-fixes cycle by bringing in 6.11-rc1.Signed-off-by: Maxime Ripard List of files: /linux/Documentation/ABI/stable/sysfs-class-backlight