kernel/linux.git/drivers/power/supply, branch v7.2-rc1

Merge tag 'for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

2026-06-20T01:13:09+00:00

Pull power supply and reset updates from Sebastian Reichel: "Power-supply drivers: - New EC driver providing battery info for Microsoft Surface RT - New driver for battery charger in Samsung S2M PMICs - Rework max17042 driver - sysfs control for bd71828 auto input current limitation All over: - Use named fields for struct platform_device_id and of_device_id entries - Misc small cleanups and fixes" * tag 'for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (33 commits) Documentation: ABI: sysfs-class-reboot-mode-reboot_modes: fix doc warnings power: supply: charger-manager: fix refcount leak in is_full_charged() power: supply: core: fix supplied_from allocations power: supply: max17042_battery: Use modern PM ops to clear up warning power: supply: add support for Samsung S2M series PMIC charger device power: supply: Add support for Surface RT battery and charger dt-bindings: embedded-controller: Document Surface RT EC power: supply: bd71828: sysfs for auto input current limitation power: supply: cpcap-charger: include missing power: supply: cros_charge-control: Move MODULE_DEVICE_TABLE next to the table itself power: supply: ab8500_fg: Fix typos in comments power: supply: Use named initializers for arrays of i2c_device_data power: supply: Remove unused jz4740-battery.h power: reset: st-poweroff: Use of_device_get_match_data() power: supply: bq257xx: Add fields for 'charging' and 'overvoltage' states power: supply: bq257xx: Consistently use indirect get/set helpers power: supply: bq257xx: Make the default current limit a per-chip attribute power: supply: bq257xx: Fix VSYSMIN clamping logic power: supply: cpcap-battery: Fix missing nvmem_device_put() causing reference leak power: supply: max17042: fix OF node reference imbalance ...

power: supply: charger-manager: fix refcount leak in is_full_charged()

2026-06-12T22:00:56+00:00

In is_full_charged(), power_supply_get_by_name() is called to obtain a reference to the fuel_gauge power supply. If the voltage check (uV >= desc->fullbatt_uV) succeeds, the function returns true directly without releasing the reference, leaking the refcount. Fix this by setting a flag and jumping to the out label where power_supply_put() properly drops the reference. Cc: stable@vger.kernel.org Fixes: e132fc6bb89b ("power: supply: charger-manager: Make decisions focussed on battery status") Signed-off-by: WenTao Liang Link: https://patch.msgid.link/20260611005322.53096-1-vulab@iscas.ac.cn Signed-off-by: Sebastian Reichel

power: supply: core: fix supplied_from allocations

2026-06-12T21:58:08+00:00

If dts property power-supplies has multiple values, then accessing to psy->supplied_from[i-1] in __power_supply_populate_supplied_from will overrun supplied_from array. Fixes: f6e0b081fb30 ("power_supply: Populate supplied_from hierarchy from the device tree") Signed-off-by: Lucas Tsai Link: https://patch.msgid.link/20260609114403.3896073-1-lucas_tsai@richtek.com Signed-off-by: Sebastian Reichel

power: supply: max17042_battery: Use modern PM ops to clear up warning

2026-06-05T19:45:25+00:00

When building for a platform that does not have power management, such as s390, there is an unused function warning, as max17042_suspend_soc_alerts() is only used in max17042_suspend(), which is under a CONFIG_PM_SLEEP #ifdef. drivers/power/supply/max17042_battery.c:957:13: error: 'max17042_suspend_soc_alerts' defined but not used [-Werror=unused-function] 957 | static void max17042_suspend_soc_alerts(struct max17042_chip *chip) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ Use the modern DEFINE_SIMPLE_DEV_PM_OPS(), which allows the compiler to see the functions as used while allowing it to eliminate them as unused during the optimization phase. Use pm_ptr() to allow the compiler to drop max17042_pm_ops when there is no PM support. Fixes: 601885ffb5e9 ("power: supply: max17042_battery: Keep only critical alerts during suspend") Signed-off-by: Nathan Chancellor Link: https://patch.msgid.link/20260604-max17042_battery-fix-unused-suspend_soc_alerts-v1-1-3562a68e6f36@kernel.org Signed-off-by: Sebastian Reichel

power: supply: add support for Samsung S2M series PMIC charger device

2026-06-04T16:04:56+00:00

Add a driver for charger controllers found in certain Samsung S2M series PMICs. The driver has very basic support for the device, with only charger online reporting working, and USB 2.0 device negotiations working. The driver includes initial support for the S2MU005 PMIC charger. Co-developed-by: Łukasz Lebiedziński Signed-off-by: Łukasz Lebiedziński Signed-off-by: Kaustabh Chakraborty Link: https://patch.msgid.link/20260516-s2mu005-pmic-v7-10-73f9702fb461@disroot.org Signed-off-by: Sebastian Reichel

power: supply: Add support for Surface RT battery and charger

2026-06-04T14:41:14+00:00

Add support for Embedded Controller found in the Microsoft Surface RT and used to monitor battery cell and charger input status and properties. Controller works both for UEFI and APX booting. [wmjb: added POWER_SUPPLY_PROP_CHARGE_NOW support] Signed-off-by: Jethro Bull Signed-off-by: Jonas Schwöbel Signed-off-by: Svyatoslav Ryhel Link: https://patch.msgid.link/20260507134608.76222-3-clamor95@gmail.com Signed-off-by: Sebastian Reichel

power: supply: bd71828: sysfs for auto input current limitation

2026-06-03T21:25:40+00:00

Add the possibility to disable the auto adjustment for input current limitation via sysfs because it gives strange results under certain circumstances e.g. when powering the device with solar panels resulting in no input power usage at all. Signed-off-by: Andreas Kemnade Reviewed-by: Matti Vaittinen Link: https://patch.msgid.link/20260504164017.467679-1-andreas@kemnade.info Signed-off-by: Sebastian Reichel

power: supply: cpcap-charger: include missing

2026-06-03T21:23:30+00:00

This file uses dev_fwnode() without including the proper header for it, relying on transitive header inclusion from: drivers/power/supply/cpcap-charger.c - include/linux/phy/omap_usb.h - include/linux/usb/phy_companion.h - include/linux/usb/otg.h - include/linux/phy/phy.h - drivers/phy/phy-provider.h - include/linux/of.h - include/linux/property.h With the future removal of drivers/phy/phy-provider.h from include/linux/phy/phy.h, this transitive inclusion would break. Signed-off-by: Vladimir Oltean Link: https://patch.msgid.link/20260505100523.1922388-27-vladimir.oltean@nxp.com Signed-off-by: Sebastian Reichel

power: supply: cros_charge-control: Move MODULE_DEVICE_TABLE next to the table itself

2026-06-03T21:21:45+00:00

By convention MODULE_DEVICE_TABLE() immediately follows the ID table it exports, because this is easier to read and verify. It also makes more sense since #ifdef for ACPI or OF could hide both of them. Most of the privers already have this correctly placed, so adjust the missing ones. No functional impact. Signed-off-by: Krzysztof Kozlowski Acked-by: Thomas Weißschuh Reviewed-by: Tzung-Bi Shih Link: https://patch.msgid.link/20260505102752.182089-2-krzysztof.kozlowski@oss.qualcomm.com Signed-off-by: Sebastian Reichel

power: supply: ab8500_fg: Fix typos in comments

2026-06-03T21:21:41+00:00

Fix spelling mistake in comments: - occured -> occurred (twice) Acked-by: Linus Walleij Signed-off-by: Md Shofiqul Islam Link: https://patch.msgid.link/20260507191840.25941-1-shofiqtest@gmail.com Signed-off-by: Sebastian Reichel