Merge tag 'hwmon-for-v6.9' of git://git.kernel.org/pub/scm/linux/kern…

…el/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New drivers:
   - Amphenol ChipCap 2
   - ASPEED g6 PWM/Fan tach
   - Astera Labs PT5161L retimer
   - ASUS ROG RYUJIN II 360 AIO cooler
   - LTC4282
   - Microsoft Surface devices
   - MPS MPQ8785 Synchronous Step-Down Converter
   - NZXT Kraken X and Z series AIO CPU coolers

  Additional chip support in existing drivers:
   - Ayaneo Air Plus 7320u (oxp-sensors)
   - INA260 (ina2xx)
   - XPS 9315 (dell-smm)
   - MSI customer ID (nct6683)

  Devicetree bindings updates:
   - Common schema for hardware monitoring devices
   - Common schema for fans
   - Update chip descriptions to use common schema
   - Document regulator properties in several drivers
   - Explicit bindings for infineon buck converters

  Other improvements:
   - Replaced rbtree with maple tree register cache in several drivers
   - Added support for humidity min/max alarm and volatage fault
     attributes to hwmon core
   - Dropped non-functional I2C_CLASS_HWMON support for drivers w/o
     detect()
   - Dropped obsolete and redundant entried from MAINTAINERS
   - Cleaned up axi-fan-control and coretemp drivers
   - Minor fixes and improvements in several other drivers"

* tag 'hwmon-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (70 commits)
  hwmon: (dell-smm) Add XPS 9315 to fan control whitelist
  hwmon: (aspeed-g6-pwm-tacho): Support for ASPEED g6 PWM/Fan tach
  dt-bindings: hwmon: Support Aspeed g6 PWM TACH Control
  dt-bindings: hwmon: fan: Add fan binding to schema
  dt-bindings: hwmon: tda38640: Add interrupt & regulator properties
  hwmon: (amc6821) add of_match table
  dt-bindings: hwmon: lm75: use common hwmon schema
  hwmon: (sis5595) drop unused DIV_TO_REG function
  dt-bindings: hwmon: reference common hwmon schema
  dt-bindings: hwmon: lltc,ltc4286: use common hwmon schema
  dt-bindings: hwmon: adi,adm1275: use common hwmon schema
  dt-bindings: hwmon: ti,ina2xx: use common hwmon schema
  dt-bindings: hwmon: add common properties
  hwmon: (pmbus/ir38064) Use PMBUS_REGULATOR_ONE to declare regulator
  hwmon: (pmbus/lm25066) Use PMBUS_REGULATOR_ONE to declare regulator
  hwmon: (pmbus/tda38640) Use PMBUS_REGULATOR_ONE to declare regulator
  regulator: dt-bindings: promote infineon buck converters to their own binding
  dt-bindings: hwmon/pmbus: ti,lm25066: document regulators
  dt-bindings: hwmon: nuvoton,nct6775: Add compatible value for NCT6799
  MAINTAINERS: Drop redundant hwmon entries
  ...

Documentation/ABI/testing/sysfs-class-hwmon

@@ -149,6 +149,15 @@ Description:
 
 		RW
 
+What:		/sys/class/hwmon/hwmonX/inY_fault
+Description:
+		Reports a voltage hard failure (eg: shorted component)
+
+		- 1: Failed
+		- 0: Ok
+
+		RO
+
 What:		/sys/class/hwmon/hwmonX/cpuY_vid
 Description:
 		CPU core reference voltage.
@@ -968,6 +977,15 @@ Description:
 
 		RW
 
+What:		/sys/class/hwmon/hwmonX/humidityY_max_alarm
+Description:
+		Maximum humidity detection
+
+		- 0: OK
+		- 1: Maximum humidity detected
+
+		RO
+
 What:		/sys/class/hwmon/hwmonX/humidityY_max_hyst
 Description:
 		Humidity hysteresis value for max limit.
@@ -987,6 +1005,15 @@ Description:
 
 		RW
 
+What:		/sys/class/hwmon/hwmonX/humidityY_min_alarm
+Description:
+		Minimum humidity detection
+
+		- 0: OK
+		- 1: Minimum humidity detected
+
+		RO
+
 What:		/sys/class/hwmon/hwmonX/humidityY_min_hyst
 Description:
 		Humidity hysteresis value for min limit.

Documentation/devicetree/bindings/hwmon/adi,adm1177.yaml

@@ -46,7 +46,10 @@ required:
   - compatible
   - reg
 
-additionalProperties: false
+allOf:
+  - $ref: hwmon-common.yaml#
+
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/hwmon/adi,adm1275.yaml

@@ -33,10 +33,6 @@ properties:
   reg:
     maxItems: 1
 
-  shunt-resistor-micro-ohms:
-    description:
-      Shunt resistor value in micro-Ohm.
-
   adi,volt-curr-sample-average:
     description: |
       Number of samples to be used to report voltage and current values.
@@ -50,6 +46,7 @@ properties:
     enum: [1, 2, 4, 8, 16, 32, 64, 128]
 
 allOf:
+  - $ref: hwmon-common.yaml#
   - if:
       properties:
         compatible:
@@ -107,7 +104,7 @@ required:
   - compatible
   - reg
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/hwmon/adi,ltc2945.yaml

@@ -31,7 +31,10 @@ required:
   - compatible
   - reg
 
-additionalProperties: false
+allOf:
+  - $ref: hwmon-common.yaml#
+
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/hwmon/adi,ltc4282.yaml

@@ -0,0 +1,159 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/adi,ltc4282.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices LTC4282 I2C High Current Hot Swap Controller over I2C
+
+maintainers:
+  - Nuno Sa <nuno.sa@analog.com>
+
+description: |
+  Analog Devices LTC4282 I2C High Current Hot Swap Controller over I2C.
+
+  https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4282.pdf
+
+properties:
+  compatible:
+    enum:
+      - adi,ltc4282
+
+  reg:
+    maxItems: 1
+
+  vdd-supply: true
+
+  clocks:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 0
+
+  adi,rsense-nano-ohms:
+    description: Value of the sense resistor.
+
+  adi,vin-mode-microvolt:
+    description:
+      Selects operating range for the Undervoltage, Overvoltage and Foldback
+      pins. Also for the ADC. Should be set to the nominal input voltage.
+    enum: [3300000, 5000000, 12000000, 24000000]
+    default: 12000000
+
+  adi,fet-bad-timeout-ms:
+    description:
+      From the moment a FET bad conditions is present, this property selects the
+      wait time/timeout for a FET-bad fault to be signaled. Setting this to 0,
+      disables FET bad faults to be reported.
+    default: 255
+    maximum: 255
+
+  adi,overvoltage-dividers:
+    description: |
+      Select which dividers to use for VDD Overvoltage detection. Note that
+      when the internal dividers are used the threshold is referenced to VDD.
+      The percentages in the datasheet are misleading since the actual values
+      to look for are in the "Absolute Maximum Ratings" table in the
+      "Comparator Inputs" section. In there there's a line for each of the 5%,
+      10% and 15% settings with the actual min, typical and max tolerances.
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [external, vdd_5_percent, vdd_10_percent, vdd_15_percent]
+    default: external
+
+  adi,undervoltage-dividers:
+    description: |
+      Select which dividers to use for VDD Overvoltage detection. Note that
+      when the internal dividers are used the threshold is referenced to VDD.
+      The percentages in the datasheet are misleading since the actual values
+      to look for are in the "Absolute Maximum Ratings" table in the
+      "Comparator Inputs" section. In there there's a line for each of the 5%,
+      10% and 15% settings with the actual min, typical and max tolerances.
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [external, vdd_5_percent, vdd_10_percent, vdd_15_percent]
+    default: external
+
+  adi,current-limit-sense-microvolt:
+    description:
+      The current limit sense voltage of the chip is adjustable between
+      12.5mV and 34.4mV in 3.1mV steps. This effectively limits the current
+      on the load.
+    enum: [12500, 15625, 18750, 21875, 25000, 28125, 31250, 34375]
+    default: 25000
+
+  adi,overcurrent-retry:
+    description:
+      If set, enables the chip to auto-retry 256 timer cycles after an
+      Overcurrent fault.
+    type: boolean
+
+  adi,overvoltage-retry-disable:
+    description:
+      If set, disables the chip to auto-retry 50ms after an Overvoltage fault.
+      It's enabled by default.
+    type: boolean
+
+  adi,undervoltage-retry-disable:
+    description:
+      If set, disables the chip to auto-retry 50ms after an Undervoltage fault.
+      It's enabled by default.
+    type: boolean
+
+  adi,fault-log-enable:
+    description:
+      If set, enables the FAULT_LOG and ADC_ALERT_LOG registers to be written
+      to the EEPROM when a fault bit transitions high and hence, will be
+      available after a power cycle (the chip loads the contents of
+      the EE_FAULT_LOG register - the one in EEPROM - into FAULT_LOG at boot).
+    type: boolean
+
+  adi,gpio1-mode:
+    description: Defines the function of the Pin. It can indicate that power is
+      good (PULL the pin low when power is not good) or that power is bad (Go
+      into high-z when power is not good).
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [power_bad, power_good]
+    default: power_good
+
+  adi,gpio2-mode:
+    description: Defines the function of the Pin. It can be set as the input for
+      the ADC or indicating that the MOSFET is in stress (dissipating power).
+    $ref: /schemas/types.yaml#/definitions/string
+    enum: [adc_input, stress_fet]
+    default: adc_input
+
+  adi,gpio3-monitor-enable:
+    description: If set, gpio3 is set as input for the ADC instead of gpio2.
+    type: boolean
+
+allOf:
+  - if:
+      required:
+        - adi,gpio3-monitor-enable
+    then:
+      properties:
+        adi,gpio2-mode:
+          const: stress_fet
+
+required:
+  - compatible
+  - reg
+  - adi,rsense-nano-ohms
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        hwmon@50 {
+            compatible = "adi,ltc4282";
+            reg = <0x50>;
+            adi,rsense-nano-ohms = <500>;
+
+            adi,gpio1-mode = "power_good";
+            adi,gpio2-mode = "adc_input";
+        };
+    };
+...

Documentation/devicetree/bindings/hwmon/amphenol,chipcap2.yaml

@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/amphenol,chipcap2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ChipCap 2 humidity and temperature iio sensor
+
+maintainers:
+  - Javier Carrasco <javier.carrasco.cruz@gmail.com>
+
+description: |
+  Relative humidity and temperature sensor on I2C bus.
+
+  Datasheets:
+    https://www.amphenol-sensors.com/en/telaire/humidity/527-humidity-sensors/3095-chipcap-2
+
+properties:
+  compatible:
+    oneOf:
+      - const: amphenol,cc2d23
+      - items:
+          - enum:
+              - amphenol,cc2d23s
+              - amphenol,cc2d25
+              - amphenol,cc2d25s
+              - amphenol,cc2d33
+              - amphenol,cc2d33s
+              - amphenol,cc2d35
+              - amphenol,cc2d35s
+          - const: amphenol,cc2d23
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: measurement ready indicator
+      - description: low humidity alarm
+      - description: high humidity alarm
+
+  interrupt-names:
+    items:
+      - const: ready
+      - const: low
+      - const: high
+
+  vdd-supply:
+    description:
+      Dedicated, controllable supply-regulator to reset the device and
+      enter in command mode.
+
+required:
+  - compatible
+  - reg
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        humidity@28 {
+            compatible = "amphenol,cc2d23s", "amphenol,cc2d23";
+            reg = <0x28>;
+            interrupt-parent = <&gpio>;
+            interrupts = <4 IRQ_TYPE_EDGE_RISING>,
+                         <5 IRQ_TYPE_EDGE_RISING>,
+                         <6 IRQ_TYPE_EDGE_RISING>;
+            interrupt-names = "ready", "low", "high";
+            vdd-supply = <&reg_vdd>;
+        };
+    };