kernel/linux.git/drivers/power/supply, branch v7.2-rc6

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

2026-07-30T23:50:17+00:00

Pull power supply fixes from Sebastian Reichel: - Documentation build fix for bd71828 - max17040: handle missing status supplier - macsmc: Support macOS 27 SMC firmware - bq25890: fix the -10 C NTC lookup entry * tag 'for-v7.2-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power: supply: bq25890: fix the -10 C NTC lookup entry power: supply: macsmc: Support macOS 27 SMC firmware power: supply: max17040: handle missing status supplier power: supply: bd71828: add a terminating table border

power: supply: bq25890: fix the -10 C NTC lookup entry

2026-07-23T15:07:24+00:00

The TSPCT lookup table is monotonically decreasing except for ADC code 121, where the sequence reads -9.0 C, -1.0 C, -12.0 C. This makes the reported battery temperature jump upward by eight degrees for one code and then downward by eleven degrees for the next code. The entry is a missing zero: use -10.0 C so the sequence remains monotonic between -9.0 C and -12.0 C. Fixes: 9652c02428f3 ("power: bq25890: add POWER_SUPPLY_PROP_TEMP") Cc: stable@vger.kernel.org Signed-off-by: Xu Rao Link: https://patch.msgid.link/0619C8BF15F43B7C+20260723065444.1796002-1-raoxu@uniontech.com Signed-off-by: Sebastian Reichel

power: supply: macsmc: Support macOS 27 SMC firmware

2026-07-20T23:09:12+00:00

The SMC firmware included in macOS 27 changed the size of BCF0 key from 4 to 1 bytes. This key is used for indicating that battery state is critically low. In addition, B0RM key has changed endianness. Reviewed-by: Sven Peter Reviewed-by: Joshua Peisach Reviewed-by: Janne Grunau Cc: stable@vger.kernel.org Fixes: 0ebf821cf6c7 ("power: supply: Add macsmc-power driver for Apple Silicon") Signed-off-by: Sasha Finkelstein Link: https://patch.msgid.link/20260712-gate-power-v4-1-aa59c6583247@chaosmail.tech Signed-off-by: Sebastian Reichel

power: supply: max17040: handle missing status supplier

2026-07-20T22:30:12+00:00

MAX17040 does not report charger state itself, so the driver forwards POWER_SUPPLY_PROP_STATUS to a supplier power supply. If no supplier is registered, power_supply_get_property_from_supplier() returns -ENODEV and leaves the output value untouched. max17040_get_property() currently ignores that error and returns success, so userspace can read an uninitialized status value from the battery power supply. This happens on systems that use the fuel gauge without a charger supplier relationship in firmware. Return POWER_SUPPLY_STATUS_UNKNOWN when no supplier provides STATUS, and propagate other supplier lookup errors. Fixes: f4b782af61ae ("power: max17040: pass status property from supplier") Cc: stable@vger.kernel.org # 6.7+ Signed-off-by: Jianing Li Link: https://patch.msgid.link/20260701061042.1008-1-m13940358460@163.com Signed-off-by: Sebastian Reichel

Replace by more specific (c files)

2026-07-03T05:38:17+00:00

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

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