Merge tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Obsolete driver removals:

   - Removed obsolete adm1021 and max6642 drivers

  New drivers:

   - MPS MP2891, MP2993, MP9941, and MP5920

   - SPD5118 (Temperature Sensor and EEPROM)

  Added device support to existing drivers:

   - g762: G761

   - dell-smm: Dell OptiPlex 7060

   - asus-ec-sensors: ProArt X670E-CREATOR WIFI

   - corsair-psu: HX1200i Series 2023 psu

   - nzxt-smart2: Additional USB IS for NZXT RGB & Fan Controller

  Notable enhancements and fixes:

   - Removed use of i2c_match_id()

   - Constified struct regmap_config where feasible

   - Cleaned up amc6821 driver, and converted to use regmap and
     with_info API

   - Converted max6639 driver to use with_info API; added support for
     additional sysfs attributes

   - Fixed various sysfs attribute underflows

   - Added PEC support to hwmon core, and use in lm90 and max31827
     drivers

  And various other minor fixes and improvements"

* tag 'hwmon-for-v6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (103 commits)
  hwmon: (max6697) Fix swapped temp{1,8} critical alarms
  hwmon: (max6697) Fix underflow when writing limit attributes
  hwmon: Remove obsolete adm1021 and max6642 drivers
  hwmon: (pmbus/ltc4286) Drop unused i2c device ids
  hwmon: (g762) Initialize fans after configuring clock
  hwmon: (amc6821) Add support for pwm1_mode attribute
  hwmon: (amc6821) Convert to with_info API
  hwmon: (amc6821) Convert to use regmap
  hwmon: (amc6821) Drop unnecessary enum chips
  hwmon: (amc6821) Use BIT() and GENMASK()
  hwmon: (amc6821) Use tabs for column alignment in defines
  hwmon: (amc6821) Reorder include files, drop unnecessary ones
  hwmon: (amc6821) Add support for fan1_target and pwm1_enable mode 4
  hwmon: (amc6821) Rename fan1_div to fan1_pulses
  hwmon: (amc6821) Make reading and writing fan speed limits consistent
  hwmon: (amc6821) Stop accepting invalid pwm values
  hwmon: (w83627ehf) Fix underflows seen when writing limit attributes
  hwmon: (nct6775-core) Fix underflows seen when writing limit attributes
  hwmon: (lm95234) Fix underflows seen when writing limit attributes
  hwmon: (adc128d818) Fix underflows seen when writing limit attributes
  ...

14 files changed, 610 insertions, 189 deletions

diff --git a/Documentation/hwmon/adm1021.rst b/Documentation/hwmon/adm1021.rst
deleted file mode 100644
index 116fb2019956..000000000000
--- a/Documentation/hwmon/adm1021.rst
+++ /dev/null
@@ -1,153 +0,0 @@
-Kernel driver adm1021
-=====================
-
-Supported chips:
-
-  * Analog Devices ADM1021
-
-    Prefix: 'adm1021'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Analog Devices website
-
-  * Analog Devices ADM1021A/ADM1023
-
-    Prefix: 'adm1023'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Analog Devices website
-
-  * Genesys Logic GL523SM
-
-    Prefix: 'gl523sm'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet:
-
-  * Maxim MAX1617
-
-    Prefix: 'max1617'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Maxim website
-
-  * Maxim MAX1617A
-
-    Prefix: 'max1617a'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Maxim website
-
-  * National Semiconductor LM84
-
-    Prefix: 'lm84'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the National Semiconductor website
-
-  * Philips NE1617
-
-    Prefix: 'max1617' (probably detected as a max1617)
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Philips website
-
-  * Philips NE1617A
-
-    Prefix: 'max1617' (probably detected as a max1617)
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Philips website
-
-  * TI THMC10
-
-    Prefix: 'thmc10'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the TI website
-
-  * Onsemi MC1066
-
-    Prefix: 'mc1066'
-
-    Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
-
-    Datasheet: Publicly available at the Onsemi website
-
-
-Authors:
-	- Frodo Looijaard <frodol@dds.nl>,
-	- Philip Edelbrock <phil@netroedge.com>
-
-Module Parameters
------------------
-
-* read_only: int
-  Don't set any values, read only mode
-
-
-Description
------------
-
-The chips supported by this driver are very similar. The Maxim MAX1617 is
-the oldest; it has the problem that it is not very well detectable. The
-MAX1617A solves that. The ADM1021 is a straight clone of the MAX1617A.
-Ditto for the THMC10. From here on, we will refer to all these chips as
-ADM1021-clones.
-
-The ADM1021 and MAX1617A reports a die code, which is a sort of revision
-code. This can help us pinpoint problems; it is not very useful
-otherwise.
-
-ADM1021-clones implement two temperature sensors. One of them is internal,
-and measures the temperature of the chip itself; the other is external and
-is realised in the form of a transistor-like device. A special alarm
-indicates whether the remote sensor is connected.
-
-Each sensor has its own low and high limits. When they are crossed, the
-corresponding alarm is set and remains on as long as the temperature stays
-out of range. Temperatures are measured in degrees Celsius. Measurements
-are possible between -65 and +127 degrees, with a resolution of one degree.
-
-If an alarm triggers, it will remain triggered until the hardware register
-is read at least once. This means that the cause for the alarm may already
-have disappeared!
-
-This driver only updates its values each 1.5 seconds; reading it more often
-will do no harm, but will return 'old' values. It is possible to make
-ADM1021-clones do faster measurements, but there is really no good reason
-for that.
-
-
-Netburst-based Xeon support
----------------------------
-
-Some Xeon processors based on the Netburst (early Pentium 4, from 2001 to
-2003) microarchitecture had real MAX1617, ADM1021, or compatible chips
-within them, with two temperature sensors. Other Xeon processors of this
-era (with 400 MHz FSB) had chips with only one temperature sensor.
-
-If you have such an old Xeon, and you get two valid temperatures when
-loading the adm1021 module, then things are good.
-
-If nothing happens when loading the adm1021 module, and you are certain
-that your specific Xeon processor model includes compatible sensors, you
-will have to explicitly instantiate the sensor chips from user-space. See
-method 4 in Documentation/i2c/instantiating-devices.rst. Possible slave
-addresses are 0x18, 0x1a, 0x29, 0x2b, 0x4c, or 0x4e. It is likely that
-only temp2 will be correct and temp1 will have to be ignored.
-
-Previous generations of the Xeon processor (based on Pentium II/III)
-didn't have these sensors. Next generations of Xeon processors (533 MHz
-FSB and faster) lost them, until the Core-based generation which
-introduced integrated digital thermal sensors. These are supported by
-the coretemp driver.
diff --git a/Documentation/hwmon/amc6821.rst b/Documentation/hwmon/amc6821.rst
index 5ddb2849da90..dbd544cd1160 100644
--- a/Documentation/hwmon/amc6821.rst
+++ b/Documentation/hwmon/amc6821.rst
@@ -47,13 +47,18 @@ fan1_input		ro	tachometer speed
 fan1_min		rw	"
 fan1_max		rw	"
 fan1_fault		ro	"
-fan1_div		rw	Fan divisor can be either 2 or 4.
+fan1_pulses		rw	Pulses per revolution can be either 2 or 4.
+fan1_target		rw	Target fan speed, to be used with pwm1_enable
+				mode 4.
 
 pwm1			rw	pwm1
 pwm1_enable		rw	regulator mode, 1=open loop, 2=fan controlled
 				by remote temperature, 3=fan controlled by
 				combination of the on-chip temperature and
 				remote-sensor temperature,
+				4=fan controlled by target rpm set with
+				fan1_target attribute.
+pwm1_mode		rw	Fan duty control mode (0=DC, 1=PWM)
 pwm1_auto_channels_temp ro	1 if pwm_enable==2, 3 if pwm_enable==3
 pwm1_auto_point1_pwm	ro	Hardwired to 0, shared for both
 				temperature channels.
diff --git a/Documentation/hwmon/asus_ec_sensors.rst b/Documentation/hwmon/asus_ec_sensors.rst
index 0bf99ba406dd..ca38922f4ec5 100644
--- a/Documentation/hwmon/asus_ec_sensors.rst
+++ b/Documentation/hwmon/asus_ec_sensors.rst
@@ -8,6 +8,7 @@ Supported boards:
  * PRIME X570-PRO
  * Pro WS X570-ACE
  * ProArt X570-CREATOR WIFI
+ * ProArt X670E-CREATOR WIFI
  * ProArt B550-CREATOR
  * ROG CROSSHAIR VIII DARK HERO
  * ROG CROSSHAIR VIII HERO (WI-FI)
diff --git a/Documentation/hwmon/corsair-cpro.rst b/Documentation/hwmon/corsair-cpro.rst
index 751f95476b57..15077203a2f8 100644
--- a/Documentation/hwmon/corsair-cpro.rst
+++ b/Documentation/hwmon/corsair-cpro.rst
@@ -39,3 +39,11 @@ fan[1-6]_target		Sets fan speed target rpm.
 pwm[1-6]		Sets the fan speed. Values from 0-255. Can only be read if pwm
 			was set directly.
 ======================= =====================================================================
+
+Debugfs entries
+---------------
+
+======================= ===================
+firmware_version	Firmware version
+bootloader_version	Bootloader version
+======================= ===================
diff --git a/Documentation/hwmon/corsair-psu.rst b/Documentation/hwmon/corsair-psu.rst
index 16db34d464dd..7ed794087f84 100644
--- a/Documentation/hwmon/corsair-psu.rst
+++ b/Documentation/hwmon/corsair-psu.rst
@@ -15,11 +15,11 @@ Supported devices:
 
   Corsair HX850i
 
-  Corsair HX1000i (Series 2022 and 2023)
+  Corsair HX1000i (Legacy and Series 2023)
 
-  Corsair HX1200i
+  Corsair HX1200i (Legacy and Series 2023)
 
-  Corsair HX1500i (Series 2022 and 2023)
+  Corsair HX1500i (Legacy and Series 2023)
 
   Corsair RM550i
 
diff --git a/Documentation/hwmon/dell-smm-hwmon.rst b/Documentation/hwmon/dell-smm-hwmon.rst
index 977263cb57a8..74905675d71f 100644
--- a/Documentation/hwmon/dell-smm-hwmon.rst
+++ b/Documentation/hwmon/dell-smm-hwmon.rst
@@ -360,6 +360,8 @@ Firmware Bug                                            Affected Machines
 ======================================================= =================
 Reading of fan states return spurious errors.           Precision 490
 
+                                                        OptiPlex 7060
+
 Reading of fan types causes erratic fan behaviour.      Studio XPS 8000
 
                                                         Studio XPS 8100
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 342ea5deba24..913c11390a45 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -25,7 +25,6 @@ Hardware Monitoring Kernel Drivers
    acpi_power_meter
    ad7314
    adc128d818
-   adm1021
    adm1025
    adm1026
    adm1031
@@ -155,7 +154,6 @@ Hardware Monitoring Kernel Drivers
    max34440
    max6620
    max6639
-   max6642
    max6650
    max6697
    max8688
@@ -166,9 +164,13 @@ Hardware Monitoring Kernel Drivers
    mlxreg-fan
    mp2856
    mp2888
+   mp2891
    mp2975
+   mp2993
    mp5023
+   mp5920
    mp5990
+   mp9941
    mpq8785
    nct6683
    nct6775
@@ -216,6 +218,7 @@ Hardware Monitoring Kernel Drivers
    smsc47m192
    smsc47m1
    sparx5-temp
+   spd5118
    stpddc60
    surface_fan
    sy7636a-hwmon
diff --git a/Documentation/hwmon/max31827.rst b/Documentation/hwmon/max31827.rst
index 44ab9dc064cb..9c11a9518c67 100644
--- a/Documentation/hwmon/max31827.rst
+++ b/Documentation/hwmon/max31827.rst
@@ -131,7 +131,14 @@ The Fault Queue bits select how many consecutive temperature faults must occur
 before overtemperature or undertemperature faults are indicated in the
 corresponding status bits.
 
-Notes
------
+PEC Support
+-----------
+
+When reading a register value, the PEC byte is computed and sent by the chip.
+
+PEC on word data transaction respresents a signifcant increase in bandwitdh
+usage (+33% for both write and reads) in normal conditions.
 
-PEC is not implemented.
+Since this operation implies there will be an extra delay to each
+transaction, PEC can be disabled or enabled through sysfs.
+Just write 1  to the "pec" file for enabling PEC and 0 for disabling it.
diff --git a/Documentation/hwmon/max6642.rst b/Documentation/hwmon/max6642.rst
deleted file mode 100644
index 7e5b7d4f9492..000000000000
--- a/Documentation/hwmon/max6642.rst
+++ /dev/null
@@ -1,27 +0,0 @@
-Kernel driver max6642
-=====================
-
-Supported chips:
-
-  * Maxim MAX6642
-
-    Prefix: 'max6642'
-
-    Addresses scanned: I2C 0x48-0x4f
-
-    Datasheet: Publicly available at the Maxim website
-
-	       http://datasheets.maxim-ic.com/en/ds/MAX6642.pdf
-
-Authors:
-
-	Per Dalen <per.dalen@appeartv.com>
-
-Description
------------
-
-The MAX6642 is a digital temperature sensor. It senses its own temperature as
-well as the temperature on one external diode.
-
-All temperature values are given in degrees Celsius. Resolution
-is 0.25 degree for the local temperature and for the remote temperature.
diff --git a/Documentation/hwmon/mp2891.rst b/Documentation/hwmon/mp2891.rst
new file mode 100644
index 000000000000..55944d1b5457
--- /dev/null
+++ b/Documentation/hwmon/mp2891.rst
@@ -0,0 +1,179 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver mp2891
+====================
+
+Supported chips:
+
+  * MPS mp2891
+
+    Prefix: 'mp2891'
+
+  * Datasheet
+
+    Publicly available at the MPS website : https://www.monolithicpower.com/en/mp2891.html
+
+Author:
+
+	Noah Wang <noahwang.wang@outlook.com>
+
+Description
+-----------
+
+This driver implements support for Monolithic Power Systems, Inc. (MPS)
+MP2891 Multi-phase Digital VR Controller.
+
+Device compliant with:
+
+- PMBus rev 1.3 interface.
+
+Device supports direct and linear format for reading input voltage,
+output voltage, input current, output current, input power, output
+power, and temperature.
+
+The driver exports the following attributes via the 'sysfs' files
+for input voltage:
+
+**in1_input**
+
+**in1_label**
+
+**in1_crit**
+
+**in1_crit_alarm**
+
+**in1_lcrit**
+
+**in1_lcrit_alarm**
+
+**in1_min**
+
+**in1_min_alarm**
+
+The driver provides the following attributes for output voltage:
+
+**in2_input**
+
+**in2_label**
+
+**in2_crit**
+
+**in2_crit_alarm**
+
+**in2_lcrit**
+
+**in2_lcrit_alarm**
+
+**in2_min**
+
+**in2_min_alarm**
+
+**in3_input**
+
+**in3_label**
+
+**in3_crit**
+
+**in3_crit_alarm**
+
+**in3_lcrit**
+
+**in3_lcrit_alarm**
+
+**in3_min**
+
+**in3_min_alarm**
+
+The driver provides the following attributes for input current:
+
+**curr1_input**
+
+**curr1_label**
+
+**curr1_max**
+
+**curr1_max_alarm**
+
+**curr2_input**
+
+**curr2_label**
+
+**curr2_max**
+
+**curr2_max_alarm**
+
+The driver provides the following attributes for output current:
+
+**curr3_input**
+
+**curr3_label**
+
+**curr3_crit**
+
+**curr3_crit_alarm**
+
+**curr3_max**
+
+**curr3_max_alarm**
+
+**curr4_input**
+
+**curr4_label**
+
+**curr4_crit**
+
+**curr4_crit_alarm**
+
+**curr4_max**
+
+**curr4_max_alarm**
+
+The driver provides the following attributes for input power:
+
+**power1_input**
+
+**power1_label**
+
+**power1_max**
+
+**power1_alarm**
+
+**power2_input**
+
+**power2_label**
+
+**power2_max**
+
+**power2_alarm**
+
+The driver provides the following attributes for output power:
+
+**power3_input**
+
+**power3_label**
+
+**power4_input**
+
+**power4_label**
+
+The driver provides the following attributes for temperature:
+
+**temp1_input**
+
+**temp1_crit**
+
+**temp1_crit_alarm**
+
+**temp1_max**
+
+**temp1_max_alarm**
+
+**temp2_input**
+
+**temp2_crit**
+
+**temp2_crit_alarm**
+
+**temp2_max**
+
+**temp2_max_alarm**
diff --git a/Documentation/hwmon/mp2993.rst b/Documentation/hwmon/mp2993.rst
new file mode 100644
index 000000000000..7a4fe0d946e0
--- /dev/null
+++ b/Documentation/hwmon/mp2993.rst
@@ -0,0 +1,150 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver mp2993
+====================
+
+Supported chips:
+
+  * MPS mp2993
+
+    Prefix: 'mp2993'
+
+  * Datasheet
+    https://scnbwymvp-my.sharepoint.com/:f:/g/personal/admin_scnbwy_com/Eth4kX1_J1hMsaASHiOYL4QBHU5a75r-tRfLKbHnJFdKLQ?e=vxj3DF
+
+Author:
+
+	Noah Wang <noahwang.wang@outlook.com>
+
+Description
+-----------
+
+This driver implements support for Monolithic Power Systems, Inc. (MPS)
+MP2993 Dual Loop Digital Multi-phase Controller.
+
+Device compliant with:
+
+- PMBus rev 1.3 interface.
+
+The driver exports the following attributes via the 'sysfs' files
+for input voltage:
+
+**in1_input**
+
+**in1_label**
+
+**in1_crit**
+
+**in1_crit_alarm**
+
+**in1_lcrit**
+
+**in1_lcrit_alarm**
+
+**in1_max**
+
+**in1_max_alarm**
+
+**in1_min**
+
+**in1_min_alarm**
+
+The driver provides the following attributes for output voltage:
+
+**in2_input**
+
+**in2_label**
+
+**in2_crit**
+
+**in2_crit_alarm**
+
+**in2_lcrit**
+
+**in2_lcrit_alarm**
+
+**in3_input**
+
+**in3_label**
+
+**in3_crit**
+
+**in3_crit_alarm**
+
+**in3_lcrit**
+
+**in3_lcrit_alarm**
+
+The driver provides the following attributes for input current:
+
+**curr1_input**
+
+**curr1_label**
+
+**curr1_max**
+
+**curr1_max_alarm**
+
+The driver provides the following attributes for output current:
+
+**curr2_input**
+
+**curr2_label**
+
+**curr2_crit**
+
+**curr2_crit_alarm**
+
+**curr2_max**
+
+**curr2_max_alarm**
+
+**curr3_input**
+
+**curr3_label**
+
+**curr3_crit**
+
+**curr3_crit_alarm**
+
+**curr3_max**
+
+**curr3_max_alarm**
+
+The driver provides the following attributes for input power:
+
+**power1_input**
+
+**power1_label**
+
+The driver provides the following attributes for output power:
+
+**power2_input**
+
+**power2_label**
+
+**power3_input**
+
+**power3_label**
+
+The driver provides the following attributes for temperature:
+
+**temp1_input**
+
+**temp1_crit**
+
+**temp1_crit_alarm**
+
+**temp1_max**
+
+**temp1_max_alarm**
+
+**temp2_input**
+
+**temp2_crit**
+
+**temp2_crit_alarm**
+
+**temp2_max**
+
+**temp2_max_alarm**
diff --git a/Documentation/hwmon/mp5920.rst b/Documentation/hwmon/mp5920.rst
new file mode 100644
index 000000000000..98946e7cf54e
--- /dev/null
+++ b/Documentation/hwmon/mp5920.rst
@@ -0,0 +1,91 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver mp5920
+====================
+
+Supported chips:
+
+  * MPS MP5920
+
+    Prefix: 'mp5920'
+
+  * Datasheet
+
+    Publicly available at the MPS website : https://www.monolithicpower.com/en/mp5920.html
+
+Authors:
+
+	Tony Ao <tony_ao@wiwynn.com>
+	Alex Vdovydchenko <xzeol@yahoo.com>
+
+Description
+-----------
+
+This driver implements support for Monolithic Power Systems, Inc. (MPS)
+MP5920 Hot-Swap Controller.
+
+Device compliant with:
+
+- PMBus rev 1.3 interface.
+
+Device supports direct and linear format for reading input voltage,
+output voltage, output current, input power and temperature.
+
+The driver exports the following attributes via the 'sysfs' files
+for input voltage:
+
+**in1_input**
+
+**in1_label**
+
+**in1_rated_max**
+
+**in1_rated_min**
+
+**in1_crit**
+
+**in1_alarm**
+
+The driver provides the following attributes for output voltage:
+
+**in2_input**
+
+**in2_label**
+
+**in2_rated_max**
+
+**in2_rated_min**
+
+**in2_alarm**
+
+The driver provides the following attributes for output current:
+
+**curr1_input**
+
+**curr1_label**
+
+**curr1_crit**
+
+**curr1_alarm**
+
+**curr1_rated_max**
+
+The driver provides the following attributes for input power:
+
+**power1_input**
+
+**power1_label**
+
+**power1_max**
+
+**power1_rated_max**
+
+The driver provides the following attributes for temperature:
+
+**temp1_input**
+
+**temp1_max**
+
+**temp1_crit**
+
+**temp1_alarm**
diff --git a/Documentation/hwmon/mp9941.rst b/Documentation/hwmon/mp9941.rst
new file mode 100644
index 000000000000..1274fa20e256
--- /dev/null
+++ b/Documentation/hwmon/mp9941.rst
@@ -0,0 +1,92 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver mp9941
+====================
+
+Supported chips:
+
+  * MPS mp9941
+
+    Prefix: 'mp9941'
+
+  * Datasheet
+    https://scnbwymvp-my.sharepoint.com/:f:/g/personal/admin_scnbwy_com/Eth4kX1_J1hMsaASHiOYL4QBHU5a75r-tRfLKbHnJFdKLQ?e=vxj3DF
+
+Author:
+
+	Noah Wang <noahwang.wang@outlook.com>
+
+Description
+-----------
+
+This driver implements support for Monolithic Power Systems, Inc. (MPS)
+MP9941 digital step-down converter.
+
+Device compliant with:
+
+- PMBus rev 1.3 interface.
+
+The driver exports the following attributes via the 'sysfs' files
+for input voltage:
+
+**in1_input**
+
+**in1_label**
+
+**in1_crit**
+
+**in1_crit_alarm**
+
+The driver provides the following attributes for output voltage:
+
+**in2_input**
+
+**in2_label**
+
+**in2_lcrit**
+
+**in2_lcrit_alarm**
+
+**in2_rated_max**
+
+**in2_rated_min**
+
+The driver provides the following attributes for input current:
+
+**curr1_input**
+
+**curr1_label**
+
+**curr1_max**
+
+**curr1_max_alarm**
+
+The driver provides the following attributes for output current:
+
+**curr2_input**
+
+**curr2_label**
+
+The driver provides the following attributes for input power:
+
+**power1_input**
+
+**power1_label**
+
+The driver provides the following attributes for output power:
+
+**power2_input**
+
+**power2_label**
+
+The driver provides the following attributes for temperature:
+
+**temp1_input**
+
+**temp1_crit**
+
+**temp1_crit_alarm**
+
+**temp1_max**
+
+**temp1_max_alarm**
diff --git a/Documentation/hwmon/spd5118.rst b/Documentation/hwmon/spd5118.rst
new file mode 100644
index 000000000000..ef7338f46575
--- /dev/null
+++ b/Documentation/hwmon/spd5118.rst
@@ -0,0 +1,63 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver spd5118
+=====================
+
+Supported chips:
+
+  * SPD5118 (JEDEC JESD300) compliant temperature sensor chips
+
+    JEDEC standard download:
+	https://www.jedec.org/standards-documents/docs/jesd300-5b01
+	(account required)
+
+
+    Prefix: 'spd5118'
+
+    Addresses scanned: I2C 0x50 - 0x57
+
+Author:
+	Guenter Roeck <linux@roeck-us.net>
+
+
+Description
+-----------
+
+This driver implements support for SPD5118 (JEDEC JESD300) compliant temperature
+sensors, which are used on many DDR5 memory modules. Some systems use the sensor
+to prevent memory overheating by automatically throttling the memory controller.
+
+The driver auto-detects SPD5118 compliant chips, but can also be instantiated
+using devicetree/firmware nodes.
+
+A SPD5118 compliant chip supports a single temperature sensor. Critical minimum,
+minimum, maximum, and critical temperature can be configured. There are alarms
+for low critical, low, high, and critical thresholds.
+
+
+Hardware monitoring sysfs entries
+---------------------------------
+
+======================= ==================================
+temp1_input		Temperature (RO)
+temp1_lcrit		Low critical high temperature (RW)
+temp1_min		Minimum temperature (RW)
+temp1_max		Maximum temperature (RW)
+temp1_crit		Critical high temperature (RW)
+
+temp1_lcrit_alarm	Temperature low critical alarm
+temp1_min_alarm		Temperature low alarm
+temp1_max_alarm		Temperature high alarm
+temp1_crit_alarm	Temperature critical alarm
+======================= ==================================
+
+Alarm attributes are sticky until read and will be cleared afterwards
+unless the alarm condition still applies.
+
+
+SPD (Serial Presence Detect) support
+------------------------------------
+
+The driver also supports reading the SPD NVRAM on SPD5118 compatible chips.
+SPD data is available from the 'eeprom' binary attribute file attached to the
+chip's I2C device.