kernel/linux.git/Documentation/power, branch v7.0-rc7

Merge tag 'for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

2026-02-13T02:24:37+00:00

Pull power supply and reset updates from Sebastian Reichel: "power-supply core: - sysfs: constify pointer passed to dev_attr_psp - extend DT binding documentation for battery cells to allow describing voltage drop behaviour power-supply drivers: - multiple: Remove unused gpio include header - multiple: Fix potential IRQ use-after-free on driver unload - bd71828: Add support for ROHM BD72720 - misc small fixes reset drivers: - tdx-ec-poweroff: fix restart" * tag 'for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (30 commits) power: supply: bd71828: Use dev_err_probe() dt-bindings: power: supply: google,goldfish-battery: Convert to DT schema power: supply: qcom_battmgr: Recognize "LiP" as lithium-polymer power: supply: wm97xx: Use devm_power_supply_register() power: supply: wm97xx: Use devm_kcalloc() power: supply: pm8916_lbc: Fix use-after-free for extcon in IRQ handler power: reset: tdx-ec-poweroff: fix restart docs: power: update documentation about removed function power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed() MAINTAINERS: adjust file entry in ROHM BD71828 CHARGER power: supply: ab8500_chargalg: improve kernel-doc power: supply: sysfs: Constify pointer passed to dev_attr_psp() power: supply: bq27xxx: fix wrong errno when bus ops are unsupported power: reset: nvmem-reboot-mode: respect cell size for nvmem_cell_write power: supply: sbs-battery: Fix use-after-free in power_supply_changed() power: supply: rt9455: Fix use-after-free in power_supply_changed() power: supply: pm8916_lbc: Fix use-after-free in power_supply_changed() power: supply: pm8916_bms_vm: Fix use-after-free in power_supply_changed() power: supply: pf1550: Fix use-after-free in power_supply_changed() power: supply: goldfish: Fix use-after-free in power_supply_changed() ...

Merge tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

2026-02-10T04:53:18+00:00

Pull documentation updates from Jonathan Corbet: "A slightly calmer cycle for docs this time around, though there is still a fair amount going on, including: - Some signs of life on the long-moribund Japanese translation - Documentation on policies around the use of generative tools for patch submissions, and a separate document intended for consumption by generative tools - The completion of the move of the documentation tools to tools/docs. For now we're leaving a /scripts/kernel-doc symlink behind to avoid breaking scripts - Ongoing build-system work includes the incorporation of documentation in Python code, better support for documenting variables, and lots of improvements and fixes - Automatic linking of man-page references -- cat(1), for example -- to the online pages in the HTML build ...and the usual array of typo fixes and such" * tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (107 commits) doc: development-process: add notice on testing tools: sphinx-build-wrapper: improve its help message docs: sphinx-build-wrapper: allow -v override -q docs: kdoc: Fix pdfdocs build for tools docs: ja_JP: process: translate 'Obtain a current source tree' docs: fix 're-use' -> 'reuse' in documentation docs: ioctl-number: fix a typo in ioctl-number.rst docs: filesystems: ensure proc pid substitutable is complete docs: automarkup.py: Skip common English words as C identifiers Documentation: use a source-read extension for the index link boilerplate docs: parse_features: make documentation more consistent docs: add parse_features module documentation docs: jobserver: do some documentation improvements docs: add jobserver module documentation docs: kabi: helpers: add documentation for each "enum" value docs: kabi: helpers: add helper for debug bits 7 and 8 docs: kabi: system_symbols: end docstring phrases with a dot docs: python: abi_regex: do some improvements at documentation docs: python: abi_parser: do some improvements at documentation docs: add kabi modules documentation ...

Merge branches 'pm-powercap', 'pm-opp' and 'pm-em'

2026-02-04T20:06:22+00:00

Merge power capping updates, OPP (operating performance points) updates and energy model management documentation updates for 6.20-rc1/7.0-rc1: - Add PL4 support for Ice Lake to the Intel RAPL power capping driver (Daniel Tang) - Replace sprintf() with sysfs_emit() in power capping sysfs show functions (Sumeet Pawnikar) - Make dev_pm_opp_get_level() return value match the documentation after a previous update of the latter (Aleks Todorov) - Use scoped for each OF child loop in the OPP code (Krzysztof Kozlowski) - Fix a bug in an example code snippet and correct typos in the energy model management documentation (Patrick Little) * pm-powercap: powercap: intel_rapl: Add PL4 support for Ice Lake powercap: Replace sprintf() with sysfs_emit() in sysfs show functions * pm-opp: OPP: Return correct value in dev_pm_opp_get_level OPP: of: Simplify with scoped for each OF child loop * pm-em: PM: EM: Documentation: Fix bug in example code snippet Documentation: Fix typos in energy model documentation

PM: EM: Documentation: Fix bug in example code snippet

2026-01-30T19:23:01+00:00

A semicolon was mistakenly placed at the end of 'if' statements. If example is copied as-is, it would lead to the subsequent return being executed unconditionally, which is incorrect, and the rest of the function would never be reached. Signed-off-by: Patrick Little Acked-by: Randy Dunlap [ rjw: Subject adjustment ] Link: https://patch.msgid.link/20260128-documentation-fix-grammar-v1-2-39238dc471f9@gmail.com Signed-off-by: Rafael J. Wysocki

Documentation: Fix typos in energy model documentation

2026-01-30T19:23:01+00:00

Fix typos in documentation related to energy model management. Signed-off-by: Patrick Little Acked-by: Randy Dunlap [ rjw: Subject and changelog edits ] Link: https://patch.msgid.link/20260128-documentation-fix-grammar-v1-1-39238dc471f9@gmail.com Signed-off-by: Rafael J. Wysocki

Documentation: use a source-read extension for the index link boilerplate

2026-01-23T18:59:34+00:00

The root document usually has a special :ref:`genindex` link to the generated index. This is also the case for Documentation/index.rst. The other index.rst files deeper in the directory hierarchy usually don't. For SPHINXDIRS builds, the root document isn't Documentation/index.rst, but some other index.rst in the hierarchy. Currently they have a ".. only::" block to add the index link when doing SPHINXDIRS html builds. This is obviously very tedious and repetitive. The link is also added to all index.rst files in the hierarchy for SPHINXDIRS builds, not just the root document. Put the boilerplate in a sphinx-includes/subproject-index.rst file, and include it at the end of the root document for subproject builds in an ad-hoc source-read extension defined in conf.py. For now, keep having the boilerplate in translations, because this approach currently doesn't cover translated index link headers. Cc: Jonathan Corbet Cc: Mauro Carvalho Chehab Cc: Randy Dunlap Signed-off-by: Jani Nikula Tested-by: Mauro Carvalho Chehab Reviewed-by: Mauro Carvalho Chehab [jc: did s/doctree/kern_doc_dir/ ] Signed-off-by: Jonathan Corbet Message-ID: <20260123143149.2024303-1-jani.nikula@intel.com>

docs: power: update documentation about removed function

2026-01-12T01:52:32+00:00

The function cm_notify_event() was removed in commit 9584051f3cf3 ("power: supply: charger-manager: Remove cm_notify_event function"). Remove the documentation that suggests how it can be used. Signed-off-by: Julia Lawall Link: https://patch.msgid.link/20260104171644.292437-1-Julia.Lawall@inria.fr Signed-off-by: Sebastian Reichel

PM: sleep: Do not flag runtime PM workqueue as freezable

2025-12-15T11:20:02+00:00

Till now, the runtime PM workqueue has been flagged as freezable, so it does not process work items during system-wide PM transitions like system suspend and resume. The original reason to do that was to reduce the likelihood of runtime PM getting in the way of system-wide PM processing, but now it is mostly an optimization because (1) runtime suspend of devices is prevented by bumping up their runtime PM usage counters in device_prepare() and (2) device drivers are expected to disable runtime PM for the devices handled by them before they embark on system-wide PM activities that may change the state of the hardware or otherwise interfere with runtime PM. However, it prevents asynchronous runtime resume of devices from working during system-wide PM transitions, which is confusing because synchronous runtime resume is not prevented at the same time, and it also sometimes turns out to be problematic. For example, it has been reported that blk_queue_enter() may deadlock during a system suspend transition because of the pm_request_resume() usage in it [1]. It may also deadlock during a system resume transition in a similar way. That happens because the asynchronous runtime resume of the given device is not processed due to the freezing of the runtime PM workqueue. While it may be better to address this particular issue in the block layer, the very presence of it means that similar problems may be expected to occur elsewhere. For this reason, remove the WQ_FREEZABLE flag from the runtime PM workqueue and make device_suspend_late() use the generic variant of pm_runtime_disable() that will carry out runtime PM of the device synchronously if there is pending resume work for it. Also update the comment before the pm_runtime_disable() call in device_suspend_late(), to document the fact that the runtime PM should not be expected to work for the device until the end of device_resume_early(), and update the related documentation. This change may, even though it is not expected to, uncover some latent issues related to queuing up asynchronous runtime resume work items during system suspend or hibernation. However, they should be limited to the interference between runtime resume and system-wide PM callbacks in the cases when device drivers start to handle system-wide PM before disabling runtime PM as described above. Link: https://lore.kernel.org/linux-pm/20251126101636.205505-2-yang.yang@vivo.com/ Signed-off-by: Rafael J. Wysocki Reviewed-by: Ulf Hansson Link: https://patch.msgid.link/12794222.O9o76ZdvQC@rafael.j.wysocki

Merge tag 'pm-6.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2025-12-09T21:29:40+00:00

Pull more power management updates from Rafael Wysocki: "Fix a runtime PM unit test added during the 6.18 development cycle and change the pm_runtime_barrier() return type to void (Brian Norris)" * tag 'pm-6.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: coccinelle: Drop pm_runtime_barrier() error code checks PM: runtime: Make pm_runtime_barrier() return void PM: runtime: Stop checking pm_runtime_barrier() return code

Merge tag 'for-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

2025-12-05T00:12:03+00:00

Pull power supply and reset updates from Sebastian Reichel: "Power-supply core: - documentation fixes power-supply drivers: - add BD71828 charger driver - add Richtek RT9756 driver - max77705: add adaptive input current support - max77705: add support for multiple devices - misc small fixes reset drivers: - add spacemit-p1 poweroff/reboot driver" * tag 'for-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: Revert "power: supply: qcom_battmgr: support disabling charge control" Documentation: power: rt9756: Document exported sysfs entries power: supply: rt9756: Add Richtek RT9756 smart cap divider charger dt-bindings: power: supply: Add Richtek RT9756 smart cap divider charger driver: reset: spacemit-p1: add driver for poweroff/reboot power: supply: apm_power: only unset own apm_get_power_status power: supply: use ktime_divns() to avoid 64-bit division docs: power: clean up power_supply_class.rst power: supply: qcom_battmgr: support disabling charge control power: supply: qcom_battmgr: clamp charge control thresholds power: supply: wm831x: Check wm831x_set_bits() return value power: supply: rt9467: Prevent using uninitialized local variable in rt9467_set_value_from_ranges() power: supply: rt9467: Return error on failure in rt9467_set_value_from_ranges() power: supply: max17040: Check iio_read_channel_processed() return code power: supply: cw2015: Check devm_delayed_work_autocancel() return code power: supply: rt5033_charger: Fix device node reference leaks power: supply: max77705: Fix potential IRQ chip conflict when probing two devices power: supply: max77705_charger: implement aicl feature MAINTAINERS: Add entry for BD71828 charger power: supply: Add bd718(15/28/78) charger driver