kernel/linux.git/drivers/power/supply/test_power.c, branch linux-7.1.y

power: supply: test-power: Test access to extended power supply

2025-07-07T12:19:49+00:00

Test that power supply extensions can access properties of their power supply using power_supply_get_property_direct(). This both ensures that the functionality works and serves as an example for future driver developers. Signed-off-by: Armin Wolf Acked-by: Sebastian Reichel Link: https://lore.kernel.org/r/20250627205124.250433-2-W_Armin@gmx.de Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge tag 'platform-drivers-x86-v6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2025-05-29T17:19:22+00:00

Pull x86 platform drivers updates from Ilpo Järvinen: "The changes are mostly business as usual. Besides pdx86 changes, there are a few power supply changes needed for related pdx86 features, move of oxpec driver from hwmon (oxp-sensors) to pdx86, and one FW version warning to hid-asus. Highlights: - alienware-wmi-wmax: - Add HWMON support - Add ABI and admin-guide documentation - Expose GPIO debug methods through debug FS - Support manual fan control and "custom" thermal profile - amd/hsmp: - Add sysfs files to show HSMP telemetry - Report power readings and limits via hwmon - amd/isp4: Add AMD ISP platform config for OV05C10 - asus-wmi: - Refactor Ally suspend/resume to work better with older FW - hid-asus: check ROG Ally MCU version and warn about old FW versions - dasharo-acpi: - Add driver for Dasharo devices supporting fans and temperatures monitoring - dell-ddv: - Expose the battery health and manufacture date to userspace using power supply extensions - Implement the battery matching algorithm - dell-pc: - Improve error propagation - Use faux device - int3472: - Add delays to avoid GPIO regulator spikes - Add handshake pin support - Make regulator supply name configurable and allow registering more than 1 GPIO regulator - Map mt9m114 powerdown pin to powerenable - intel/pmc: Add separate SSRAM Telemetry driver - intel-uncore-freq: Add attributes to show agent types and die ID - ISST: - Support SST-TF revision 2 (allows more cores per bucket) - Support SST-PP revision 2 (fabric 1 frequencies) - Remove unnecessary SST MSRs restore (the package retains MSRs despite CPU offlining) - mellanox: Add support for SN2201, SN4280, SN5610, and SN5640 - mellanox: mlxbf-pmc: Support additional PMC blocks - oxpec: - Add OneXFly variants - Add support for charge limit, charge thresholds, and turbo LED - Distinguish current X1 variants to avoid unwanted matching to new variants - Follow hwmon conventions - Move from hwmon/oxp-sensors to platform/x86 to match the enlarged scope - power supply: - Add inhibit-charge-awake (needed by oxpec) - Add additional battery health status values ("blown fuse" and "cell imbalance") (needed by dell-ddv) - powerwell-ec: Add driver for Portwell EC supporting GPIO and watchdog - thinkpad-acpi: Support camera shutter switch hotkey - tuxedo: Add virtual LampArray for TUXEDO NB04 devices - tools/power/x86/intel-speed-select: - Support displaying SST-PP revision 2 fields - Skip uncore frequency update on newer generations of CPUs - Miscellaneous cleanups / refactoring / improvements" * tag 'platform-drivers-x86-v6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (112 commits) thermal/drivers/acerhdf: Constify struct thermal_zone_device_ops platform/x86/amd/hsmp: fix building with CONFIG_HWMON=m platform/x86: asus-wmi: fix build without CONFIG_SUSPEND docs: ABI: Fix "aassociated" to "associated" platform/x86: Add AMD ISP platform config for OV05C10 Documentation: admin-guide: pm: Add documentation for die_id platform/x86/intel-uncore-freq: Add attributes to show die_id platform/x86/intel: power-domains: Add interface to get Linux die ID Documentation: admin-guide: pm: Add documentation for agent_types platform/x86/intel-uncore-freq: Add attributes to show agent types platform/x86/tuxedo: Prevent invalid Kconfig state platform/x86: dell-ddv: Expose the battery health to userspace platform/x86: dell-ddv: Expose the battery manufacture date to userspace platform/x86: dell-ddv: Implement the battery matching algorithm power: supply: core: Add additional health status values platform/x86/amd/hsmp: acpi: Add sysfs files to display HSMP telemetry platform/x86/amd/hsmp: Report power via hwmon sensors platform/x86/amd/hsmp: Use a single DRIVER_VERSION for all hsmp modules platform/mellanox: mlxreg-dpu: Fix smatch warnings platform: mellanox: nvsw-sn2200: Fix .items in nvsw_sn2201_busbar_hotplug ...

power: supply: add inhibit-charge-awake to charge_behaviour

2025-04-30T11:05:42+00:00

OneXPlayer devices have a charge inhibit feature that allows the user to select between it being active always or only when the device is on. Therefore, add attribute inhibit-charge-awake to charge_behaviour to allow the user to select that charge should be paused only when the device is awake. Reviewed-by: Hans de Goede Reviewed-by: Thomas Weißschuh Reviewed-by: Derek J. Clark Signed-off-by: Antheas Kapenekakis Link: https://lore.kernel.org/r/20250425111821.88746-14-lkml@antheas.dev Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

power: supply: support charge_types in extensions

2025-04-28T23:05:53+00:00

Similar to charge_behaviour, charge_types is an enum option where reading the property shows the supported values, with the active value surrounded by brackets. To be able to use it with a power_supply extension a bitmask with the supported charge_Types values has to be added to power_supply_ext. Signed-off-by: Jelle van der Waa Reviewed-by: Hans de Goede Link: https://lore.kernel.org/r/20250414131840.382756-2-jvanderwaa@redhat.com Signed-off-by: Sebastian Reichel

power: supply: core: add UAPI to discover currently used extensions

2024-12-14T21:50:17+00:00

Userspace wants to now about the used power supply extensions, for example to handle a device extended by a certain extension differently or to discover information about the extending device. Add a sysfs directory to the power supply device. This directory contains links which are named after the used extension and point to the device implementing that extension. Signed-off-by: Thomas Weißschuh Reviewed-by: Armin Wolf Link: https://lore.kernel.org/r/20241211-power-supply-extensions-v6-4-9d9dc3f3d387@weissschuh.net Signed-off-by: Sebastian Reichel

power: supply: test-power: implement a power supply extension

2024-12-14T03:22:05+00:00

Allow easy testing of the new power supply extension functionality. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20241211-power-supply-extensions-v6-2-9d9dc3f3d387@weissschuh.net Signed-off-by: Sebastian Reichel

power: supply: test-power: implement charge_behaviour property

2024-03-25T22:29:06+00:00

To validate the special formatting of the "charge_behaviour" sysfs property add it to the example driver. Signed-off-by: Thomas Weißschuh Link: https://lore.kernel.org/r/20240306-power_supply-charge_behaviour_prop-v3-1-d04cf1f5f0af@weissschuh.net Signed-off-by: Sebastian Reichel

power: supply: test-power: use strscpy() instead of strncpy()

2023-02-03T12:43:48+00:00

The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL-terminated strings. Signed-off-by: Xu Panda Signed-off-by: Yang Yang Signed-off-by: Sebastian Reichel

power: supply: test-power: revise parameter printing to use sprintf

2020-10-08T23:02:30+00:00

Simplify code by using sprintf instead of strcpy+strcat+strlen. Signed-off-by: Harley A.W. Lorenzo Suggested-by: Joe Perches Signed-off-by: Sebastian Reichel

power: supply: test_power: add missing newlines when printing parameters by sysfs

2020-10-03T21:22:20+00:00

When I cat some module parameters by sysfs, it displays as follows. It's better to add a newline for easy reading. root@syzkaller:~# cd /sys/module/test_power/parameters/ root@syzkaller:/sys/module/test_power/parameters# cat ac_online onroot@syzkaller:/sys/module/test_power/parameters# cat battery_present trueroot@syzkaller:/sys/module/test_power/parameters# cat battery_health goodroot@syzkaller:/sys/module/test_power/parameters# cat battery_status dischargingroot@syzkaller:/sys/module/test_power/parameters# cat battery_technology LIONroot@syzkaller:/sys/module/test_power/parameters# cat usb_online onroot@syzkaller:/sys/module/test_power/parameters# Signed-off-by: Xiongfeng Wang Signed-off-by: Sebastian Reichel