Merge tag 'for-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 "Power-supply core:

   - introduce power supply extensions, which allows adding properties
     to a power supply device from a separate driver. This will be used
     initially to extend the generic ACPI charger/battery driver with
     vendor extensions for charge thresholds.

   - convert all drivers from power_supply_for_each_device to new
     power_supply_for_each_psy(), which avoids lots of casting being
     done in the drivers.

   - avoid LED trigger like values in uevent for
     POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR

   - introduce POWER_SUPPLY_PROP_CHARGE_TYPES, which is similar to the
     POWER_SUPPLY_PROP_CHARGE_TYPE property, but also lists the
     available options on the specific platform

  Power-supply drivers

   - dell-laptop: use new power_supply_charge_types_show/_parse helpers

   - stc3117: new driver for equally named fuel gauge chip

   - bq24190: add support for new POWER_SUPPLY_PROP_CHARGE_TYPES

   - bq24190: add BQ24297 support

   - bq27xxx: add voltage min design for bq27000/bq27200

   - cros_charge-control: convert to new power supply extension API

   - multiple drivers: constify 'struct bin_attribute'

   - ds2782: convert to device managed resources

   - max1720x: add charge full property

   - max1720x: support extra thermistor temperatures

   - max17042: add max77705 support

   - ip5xxx-power: add support for IP5306

   - ltc4162-l-charger: add ltc4162-f/s and ltc4015 support

   - gpio-charger: support for default charge current limit

   - misc small cleanups and fixes

  Reset drivers:

   - at91-poweroff: add sam9x7 support"

* tag 'for-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (77 commits)
  power: supply: max1720x: add support for reading internal and thermistor temperatures
  power: supply: ltc4162l: Use GENMASK macro in bitmask operation
  power: supply: max17042: add max77705 fuel gauge support
  dt-bindings: power: supply: max17042: add max77705 support
  power: supply: add undervoltage health status property
  power: supply: max17042: add platform driver variant
  power: supply: max17042: make interrupt shared
  power: reset: keystone: Use syscon_regmap_lookup_by_phandle_args
  power: supply: Use str_enable_disable-like helpers
  platform/x86: dell-laptop: Use power_supply_charge_types_show/_parse() helpers
  power: supply: bq2415x_charger: Immediately reschedule delayed work on notifier events
  power: supply: Add STC3117 fuel gauge unit driver
  dt-bindings: power: supply: Add STC3117 Fuel Gauge
  power: supply: ug3105_battery: Let the core handle POWER_SUPPLY_PROP_TECHNOLOGY
  power: supply: gpio-charger: add support for default charge current limit
  dt-bindings: power: supply: gpio-charger: add support for default charge current limit
  power: supply: Use power_supply_external_power_changed() in __power_supply_changed_work()
  power: supply: core: fix build of extension sysfs group if CONFIG_SYSFS=n
  power: supply: bq2415x_charger: report charging state changes to userspace
  bq27xxx: add voltage min design for bq27000 and bq27200
  ...

Author: torvalds

Documentation/ABI/testing/sysfs-class-power

@@ -407,10 +407,30 @@ Description:
 
 		Access: Read, Write
 
+		Reading this returns the current active value, e.g. 'Standard'.
+		Check charge_types to get the values supported by the battery.
+
 		Valid values:
 			      "Unknown", "N/A", "Trickle", "Fast", "Standard",
 			      "Adaptive", "Custom", "Long Life", "Bypass"
 
+What:		/sys/class/power_supply/<supply_name>/charge_types
+Date:		December 2024
+Contact:	[email protected]
+Description:
+		Identical to charge_type but reading returns a list of supported
+		charge-types with the currently active type surrounded by square
+		brackets, e.g.: "Fast [Standard] Long_Life".
+
+		power_supply class devices may support both charge_type and
+		charge_types for backward compatibility. In this case both will
+		always have the same active value and the active value can be
+		changed by writing either property.
+
+		Note charge-types which contain a space such as "Long Life" will
+		have the space replaced by a '_' resulting in e.g. "Long_Life".
+		When writing charge-types both variants are accepted.
+
 What:		/sys/class/power_supply/<supply_name>/charge_term_current
 Date:		July 2014
 Contact:	[email protected]
@@ -433,7 +453,7 @@ Description:
 
 		Valid values:
 			      "Unknown", "Good", "Overheat", "Dead",
-			      "Over voltage", "Unspecified failure", "Cold",
+			      "Over voltage", "Under voltage", "Unspecified failure", "Cold",
 			      "Watchdog timer expire", "Safety timer expire",
 			      "Over current", "Calibration required", "Warm",
 			      "Cool", "Hot", "No battery"
@@ -793,3 +813,12 @@ Description:
 
 		Access: Read
 		Valid values: 1-31
+
+What:		/sys/class/power_supply/<supply_name>/extensions/<extension_name>
+Date:		March 2025
+Contact:	[email protected]
+Description:
+		Reports the extensions registered to the power supply.
+		Each entry is a link to the device which registered the extension.
+
+		Access: Read

Documentation/ABI/testing/sysfs-class-power-max1720x

@@ -0,0 +1,32 @@
+What:		/sys/class/power_supply/max1720x/temp_ain1
+Date:		January 2025
+KernelVersion:	6.14
+Contact:	Dimitri Fedrau <[email protected]>
+Description:
+		Reports the current temperature reading from AIN1 thermistor.
+
+		Access: Read
+
+		Valid values: Represented in 1/10 Degrees Celsius
+
+What:		/sys/class/power_supply/max1720x/temp_ain2
+Date:		January 2025
+KernelVersion:	6.14
+Contact:	Dimitri Fedrau <[email protected]>
+Description:
+		Reports the current temperature reading from AIN2 thermistor.
+
+		Access: Read
+
+		Valid values: Represented in 1/10 Degrees Celsius
+
+What:		/sys/class/power_supply/max1720x/temp_int
+Date:		January 2025
+KernelVersion:	6.14
+Contact:	Dimitri Fedrau <[email protected]>
+Description:
+		Reports the current temperature reading from internal die.
+
+		Access: Read
+
+		Valid values: Represented in 1/10 Degrees Celsius

Documentation/devicetree/bindings/power/reset/atmel,sama5d2-shdwc.yaml

@@ -22,6 +22,9 @@ properties:
       - enum:
           - atmel,sama5d2-shdwc
           - microchip,sam9x60-shdwc
+      - items:
+          - const: microchip,sam9x7-shdwc
+          - const: microchip,sam9x60-shdwc
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/power/supply/bq24190.yaml

@@ -21,6 +21,7 @@ properties:
       - ti,bq24192i
       - ti,bq24196
       - ti,bq24296
+      - ti,bq24297
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/power/supply/gpio-charger.yaml

@@ -58,6 +58,10 @@ properties:
             charge-current-limit-gpios property. Bit 1 second to last
             GPIO and so on.
 
+  charge-current-limit-default-microamp:
+    description: Default charge current limit. Must be listed in
+      charge-current-limit-mapping.
+
 required:
   - compatible
 
@@ -72,6 +76,7 @@ anyOf:
 dependencies:
   charge-current-limit-gpios: [ charge-current-limit-mapping ]
   charge-current-limit-mapping: [ charge-current-limit-gpios ]
+  charge-current-limit-default-microamp: [charge-current-limit-mapping]
 
 additionalProperties: false
 
@@ -91,4 +96,5 @@ examples:
       charge-current-limit-mapping = <2500000 0x00>, // 2.5 A => both GPIOs low
                                      <700000 0x01>, // 700 mA => GPIO A.12 high
                                      <0 0x02>; // 0 mA => GPIO A.11 high
+      charge-current-limit-default-microamp = <700000>;
     };

Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml

@@ -17,12 +17,18 @@ description: |
   panels, etc., and a rechargeable Lithium-Ion/Polymer battery.
 
   Specifications about the charger can be found at:
+    https://www.analog.com/en/products/ltc4162-l.html
+    https://www.analog.com/en/products/ltc4162-f.html
     https://www.analog.com/en/products/ltc4162-s.html
+    https://www.analog.com/en/products/ltc4015.html
 
 properties:
   compatible:
     enum:
+      - lltc,ltc4015
+      - lltc,ltc4162-f
       - lltc,ltc4162-l
+      - lltc,ltc4162-s
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/power/supply/maxim,max17042.yaml

@@ -19,6 +19,7 @@ properties:
       - maxim,max17047
       - maxim,max17050
       - maxim,max17055
+      - maxim,max77705-battery
       - maxim,max77849-battery
 
   reg:

Documentation/devicetree/bindings/power/supply/st,stc3117.yaml

@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/supply/st,stc3117.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics STC3117 Fuel Gauge Unit Power Supply
+
+maintainers:
+  - Hardevsinh Palaniya <[email protected]>
+  - Bhavin Sharma <[email protected]>
+
+description: |
+  The STC3117 includes the STMicroelectronics OptimGauge algorithm.
+  It provides accurate battery state-of-charge (SOC) monitoring, tracks
+  battery parameter changes with operation conditions, temperature,
+  and aging, and allows the application to get a battery state-of-health
+  (SOH) indication.
+
+  An alarm output signals low SOC or low voltage conditions and also
+  indicates fault conditions like a missing or swapped battery.
+
+  Datasheet is available at
+  https://www.st.com/resource/en/datasheet/stc3117.pdf
+
+allOf:
+  - $ref: power-supply.yaml#
+
+properties:
+  compatible:
+    enum:
+      - st,stc3117
+
+  reg:
+    maxItems: 1
+
+  monitored-battery:
+    description: |
+      The fuel gauge uses the following battery properties:
+      - charge-full-design-microamp-hours
+      - voltage-min-design-microvolt
+      - voltage-max-design-microvolt
+
+  shunt-resistor-micro-ohms:
+    description: Current sense resistor
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - monitored-battery
+  - shunt-resistor-micro-ohms
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      battery@70 {
+        compatible = "st,stc3117";
+        reg = <0x70>;
+        interrupt-parent = <&gpio0>;
+        interrupts = <31 IRQ_TYPE_LEVEL_LOW>;
+        monitored-battery = <&bat>;
+        shunt-resistor-micro-ohms = <10000>;
+      };
+    };

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -147,6 +147,8 @@ properties:
           - injoinic,ip5207
             # Injoinic IP5209 2.4A Power Bank IC with I2C
           - injoinic,ip5209
+            # Injoinic IP5306 2.1A Power Bank IC with I2C option
+          - injoinic,ip5306
             # Inspur Power System power supply unit version 1
           - inspur,ipsps1
             # Intel common redudant power supply crps185

MAINTAINERS

@@ -22309,6 +22309,14 @@ T:	git git://linuxtv.org/media.git
 F:	Documentation/devicetree/bindings/media/i2c/st,st-mipid02.yaml
 F:	drivers/media/i2c/st-mipid02.c
 
+ST STC3117 FUEL GAUGE DRIVER
+M:	Hardevsinh Palaniya <[email protected]>
+M:	Bhavin Sharma <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	Documentation/devicetree/bindings/power/supply/st,stc3117.yaml
+F:	drivers/power/supply/stc3117_fuel_gauge.c
+
 ST STM32 FIREWALL
 M:	Gatien Chevallier <[email protected]>
 S:	Maintained