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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-27 00:59:21 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-27 00:59:21 +0300
commit47080f2286110c371b9cf75ac7b34a6f2f1cf4ba (patch)
treefdc9cf3da77cffd1add8a9e7c44df988291837c7 /Documentation
parent55ba0fe059a577fa08f23223991b24564962620f (diff)
parent9049572fb145746725b198a19e27fa2671b80448 (diff)
downloadlinux-47080f2286110c371b9cf75ac7b34a6f2f1cf4ba.tar.xz
Merge tag 'hwmon-for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck: "The most notable change is the removal of the amd_energy driver. It was rendered all but unusable by making its attributes privileged-only to work around a security issue. A suggested remedy was rejected by AMD, so the only real solution was to remove the driver. For the future, we'll have to make sure that no privileged-access-only drivers are accepted into the hwmon subsystem in the first place. The hwmon ABI document was updated accordingly. Other changes: PMBus drivers: - Added driver for MAX15301 - Added driver for BluTek BPA-RS600 - Added driver for fsp-3y PSUs and PDUs - Added driver for Infineon IR36021 - Added driver for ST STPDDC60 - Added support for TI TPS53676 to tps53679 driver - Introduced PMBUS symbol namespace. This was made necessary by a suggestion to use its exported functions from outside the hwmon subsystem. - Minor improvements and bug fixes New drivers: - Driver for NZXT Kraken X42/X52/X62/X72 Driver enhancements: - Added support for Intel D5005 to intel-m10-bmc-hwmon driver - Added support for NCT6686D to nct6683 driver Other: - Converted sch5627 and amd9240 drivers to hwmon_device_register_with_info() - Added support for fan drawers capability and present registers to mlxreg-fan driver - Added Dell Latitude E7440 to fan control whitelist in dell-smm driver - Replaced snprintf in show functions with sysfs_emit. Done with coccinelle script for all drivers to preempt endless per-driver submissions of the same change. - Use kobj_to_dev(). Another coccinelle based change to preempt endless per-driver submissions of the same change. - Various minor fixes and improvements" * tag 'hwmon-for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (38 commits) hwmon: Remove amd_energy driver hwmon: Clarify scope of attribute access hwmon: (pmbus) Introduce PMBUS symbol namespace hwmon: (pmbus) Add pmbus driver for MAX15301 hwmon: (sch5627) Remove unnecessary error path hwmon: (sch5627) Use devres function hwmon: (pmbus/pxe1610) don't bail out when not all pages are active hwmon: Add driver for fsp-3y PSUs and PDUs hwmon: (intel-m10-bmc-hwmon) add sensor support of Intel D5005 card hwmon: (sch5627) Split sch5627_update_device() hwmon: (sch5627) Convert to hwmon_device_register_with_info() hwmon: (nct6683) remove useless function hwmon: (dell-smm) Add Dell Latitude E7440 to fan control whitelist MAINTAINERS: Add keyword pattern for hwmon registration functions hwmon: (mlxreg-fan) Add support for fan drawers capability and present registers hwmon: (pmbus/tps53679) Add support for TI TPS53676 dt-bindings: Add trivial device entry for TPS53676 hwmon: (ftsteutates) Rudimentary typo fixes hwmon: (pmbus) Add driver for BluTek BPA-RS600 dt-bindings: Add vendor prefix and trivial device for BluTek BPA-RS600 ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/trivial-devices.yaml6
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.yaml2
-rw-r--r--Documentation/hwmon/amd_energy.rst119
-rw-r--r--Documentation/hwmon/bpa-rs600.rst74
-rw-r--r--Documentation/hwmon/corsair-psu.rst13
-rw-r--r--Documentation/hwmon/fsp-3y.rst28
-rw-r--r--Documentation/hwmon/index.rst7
-rw-r--r--Documentation/hwmon/ir36021.rst63
-rw-r--r--Documentation/hwmon/max15301.rst87
-rw-r--r--Documentation/hwmon/nzxt-kraken2.rst42
-rw-r--r--Documentation/hwmon/stpddc60.rst90
-rw-r--r--Documentation/hwmon/sysfs-interface.rst8
-rw-r--r--Documentation/hwmon/tps53679.rst13
13 files changed, 429 insertions, 123 deletions
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index a327130d1faa..08e417e2236c 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -50,6 +50,8 @@ properties:
- atmel,atsha204a
# i2c h/w elliptic curve crypto module
- atmel,atecc508a
+ # BPA-RS600: Power Supply
+ - blutek,bpa-rs600
# Bosch Sensortec pressure, temperature, humididty and VOC sensor
- bosch,bme680
# CM32181: Ambient Light Sensor
@@ -102,6 +104,8 @@ properties:
- mps,mp2975
# G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
- gmt,g751
+ # Infineon IR36021 digital POL buck controller
+ - infineon,ir36021
# Infineon IR38064 Voltage Regulator
- infineon,ir38064
# Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
@@ -288,6 +292,8 @@ properties:
- ti,tmp103
# Digital Temperature Sensor
- ti,tmp275
+ # TI Dual channel DCAP+ multiphase controller TPS53676 with AVSBus
+ - ti,tps53676
# TI Dual channel DCAP+ multiphase controller TPS53679
- ti,tps53679
# TI Dual channel DCAP+ multiphase controller TPS53688
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index b6e71a7c56bb..b6e9d78ef00c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -171,6 +171,8 @@ patternProperties:
description: Beckhoff Automation GmbH & Co. KG
"^bitmain,.*":
description: Bitmain Technologies
+ "^blutek,.*":
+ description: BluTek Power
"^boe,.*":
description: BOE Technology Group Co., Ltd.
"^bosch,.*":
diff --git a/Documentation/hwmon/amd_energy.rst b/Documentation/hwmon/amd_energy.rst
deleted file mode 100644
index 9d58cd5ee3da..000000000000
--- a/Documentation/hwmon/amd_energy.rst
+++ /dev/null
@@ -1,119 +0,0 @@
-.. SPDX-License-Identifier: GPL-2.0
-
-Kernel driver amd_energy
-==========================
-
-Supported chips:
-
-* AMD Family 17h Processors: Model 30h
-
-* AMD Family 19h Processors: Model 01h
-
- Prefix: 'amd_energy'
-
- Addresses used: RAPL MSRs
-
- Datasheets:
-
- - Processor Programming Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors
-
- https://developer.amd.com/wp-content/resources/55570-B1_PUB.zip
-
- - Preliminary Processor Programming Reference (PPR) for AMD Family 17h Model 31h, Revision B0 Processors
-
- https://developer.amd.com/wp-content/resources/56176_ppr_Family_17h_Model_71h_B0_pub_Rev_3.06.zip
-
-Author: Naveen Krishna Chatradhi <nchatrad@amd.com>
-
-Description
------------
-
-The Energy driver exposes the energy counters that are
-reported via the Running Average Power Limit (RAPL)
-Model-specific Registers (MSRs) via the hardware monitor
-(HWMON) sysfs interface.
-
-1. Power, Energy and Time Units
- MSR_RAPL_POWER_UNIT/ C001_0299:
- shared with all cores in the socket
-
-2. Energy consumed by each Core
- MSR_CORE_ENERGY_STATUS/ C001_029A:
- 32-bitRO, Accumulator, core-level power reporting
-
-3. Energy consumed by Socket
- MSR_PACKAGE_ENERGY_STATUS/ C001_029B:
- 32-bitRO, Accumulator, socket-level power reporting,
- shared with all cores in socket
-
-These registers are updated every 1ms and cleared on
-reset of the system.
-
-Note: If SMT is enabled, Linux enumerates all threads as cpus.
-Since, the energy status registers are accessed at core level,
-reading those registers from the sibling threads would result
-in duplicate values. Hence, energy counter entries are not
-populated for the siblings.
-
-Energy Caluclation
-------------------
-
-Energy information (in Joules) is based on the multiplier,
-1/2^ESU; where ESU is an unsigned integer read from
-MSR_RAPL_POWER_UNIT register. Default value is 10000b,
-indicating energy status unit is 15.3 micro-Joules increment.
-
-Reported values are scaled as per the formula
-
-scaled value = ((1/2^ESU) * (Raw value) * 1000000UL) in uJoules
-
-Users calculate power for a given domain by calculating
- dEnergy/dTime for that domain.
-
-Energy accumulation
---------------------------
-
-Current, Socket energy status register is 32bit, assuming a 240W
-2P system, the register would wrap around in
-
- 2^32*15.3 e-6/240 * 2 = 547.60833024 secs to wrap(~9 mins)
-
-The Core energy register may wrap around after several days.
-
-To improve the wrap around time, a kernel thread is implemented
-to accumulate the socket energy counters and one core energy counter
-per run to a respective 64-bit counter. The kernel thread starts
-running during probe, wakes up every 100secs and stops running
-when driver is removed.
-
-Frequency of the accumulator thread is set during the probe
-based on the chosen energy unit resolution. For example
-A. fine grain (1.625 micro J)
-B. course grain (0.125 milli J)
-
-A socket and core energy read would return the current register
-value added to the respective energy accumulator.
-
-Sysfs attributes
-----------------
-
-=============== ======== =====================================
-Attribute Label Description
-=============== ======== =====================================
-
-* For index N between [1] and [nr_cpus]
-
-=============== ======== ======================================
-energy[N]_input EcoreX Core Energy X = [0] to [nr_cpus - 1]
- Measured input core energy
-=============== ======== ======================================
-
-* For N between [nr_cpus] and [nr_cpus + nr_socks]
-
-=============== ======== ======================================
-energy[N]_input EsocketX Socket Energy X = [0] to [nr_socks -1]
- Measured input socket energy
-=============== ======== ======================================
-
-Note: To address CVE-2020-12912, the visibility of the energy[N]_input
-attributes is restricted to owner and groups only.
diff --git a/Documentation/hwmon/bpa-rs600.rst b/Documentation/hwmon/bpa-rs600.rst
new file mode 100644
index 000000000000..28313995d4ae
--- /dev/null
+++ b/Documentation/hwmon/bpa-rs600.rst
@@ -0,0 +1,74 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver bpa-rs600
+=======================
+
+Supported chips:
+
+ * BPA-RS600-120
+
+ Datasheet: Publicly available at the BluTek website
+ http://blutekpower.com/wp-content/uploads/2019/01/BPA-RS600-120-07-19-2018.pdf
+
+Authors:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+Description
+-----------
+
+The BPA-RS600 is a compact 600W removable power supply module.
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Sysfs attributes
+----------------
+
+======================= ============================================
+curr1_label "iin"
+curr1_input Measured input current
+curr1_max Maximum input current
+curr1_max_alarm Input current high alarm
+
+curr2_label "iout1"
+curr2_input Measured output current
+curr2_max Maximum output current
+curr2_max_alarm Output current high alarm
+
+fan1_input Measured fan speed
+fan1_alarm Fan warning
+fan1_fault Fan fault
+
+in1_label "vin"
+in1_input Measured input voltage
+in1_max Maximum input voltage
+in1_max_alarm Input voltage high alarm
+in1_min Minimum input voltage
+in1_min_alarm Input voltage low alarm
+
+in2_label "vout1"
+in2_input Measured output voltage
+in2_max Maximum output voltage
+in2_max_alarm Output voltage high alarm
+in2_min Maximum output voltage
+in2_min_alarm Output voltage low alarm
+
+power1_label "pin"
+power1_input Measured input power
+power1_alarm Input power alarm
+power1_max Maximum input power
+
+power2_label "pout1"
+power2_input Measured output power
+power2_max Maximum output power
+power2_max_alarm Output power high alarm
+
+temp1_input Measured temperature around input connector
+temp1_alarm Temperature alarm
+
+temp2_input Measured temperature around output connector
+temp2_alarm Temperature alarm
+======================= ============================================
diff --git a/Documentation/hwmon/corsair-psu.rst b/Documentation/hwmon/corsair-psu.rst
index 396b95c9a76a..e8378e7a1d8c 100644
--- a/Documentation/hwmon/corsair-psu.rst
+++ b/Documentation/hwmon/corsair-psu.rst
@@ -47,19 +47,30 @@ Sysfs entries
======================= ========================================================
curr1_input Total current usage
curr2_input Current on the 12v psu rail
+curr2_crit Current max critical value on the 12v psu rail
curr3_input Current on the 5v psu rail
+curr3_crit Current max critical value on the 5v psu rail
curr4_input Current on the 3.3v psu rail
+curr4_crit Current max critical value on the 3.3v psu rail
fan1_input RPM of psu fan
in0_input Voltage of the psu ac input
in1_input Voltage of the 12v psu rail
+in1_crit Voltage max critical value on the 12v psu rail
+in1_lcrit Voltage min critical value on the 12v psu rail
in2_input Voltage of the 5v psu rail
-in3_input Voltage of the 3.3 psu rail
+in2_crit Voltage max critical value on the 5v psu rail
+in2_lcrit Voltage min critical value on the 5v psu rail
+in3_input Voltage of the 3.3v psu rail
+in3_crit Voltage max critical value on the 3.3v psu rail
+in3_lcrit Voltage min critical value on the 3.3v psu rail
power1_input Total power usage
power2_input Power usage of the 12v psu rail
power3_input Power usage of the 5v psu rail
power4_input Power usage of the 3.3v psu rail
temp1_input Temperature of the psu vrm component
+temp1_crit Temperature max cirtical value of the psu vrm component
temp2_input Temperature of the psu case
+temp2_crit Temperature max critical value of psu case
======================= ========================================================
Usage Notes
diff --git a/Documentation/hwmon/fsp-3y.rst b/Documentation/hwmon/fsp-3y.rst
new file mode 100644
index 000000000000..5693d83a2035
--- /dev/null
+++ b/Documentation/hwmon/fsp-3y.rst
@@ -0,0 +1,28 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver fsp3y
+======================
+Supported devices:
+ * 3Y POWER YH-5151E
+ * 3Y POWER YM-2151E
+
+Author: Václav Kubernát <kubernat@cesnet.cz>
+
+Description
+-----------
+This driver implements limited support for two 3Y POWER devices.
+
+Sysfs entries
+-------------
+ * in1_input input voltage
+ * in2_input 12V output voltage
+ * in3_input 5V output voltage
+ * curr1_input input current
+ * curr2_input 12V output current
+ * curr3_input 5V output current
+ * fan1_input fan rpm
+ * temp1_input temperature 1
+ * temp2_input temperature 2
+ * temp3_input temperature 3
+ * power1_input input power
+ * power2_input output power
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 8d5a2df1ecb6..9ed60fa84cbe 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -39,12 +39,12 @@ Hardware Monitoring Kernel Drivers
adt7475
aht10
amc6821
- amd_energy
asb100
asc7621
aspeed-pwm-tacho
bcm54140
bel-pfe
+ bpa-rs600
bt1-pvt
coretemp
corsair-cpro
@@ -62,6 +62,7 @@ Hardware Monitoring Kernel Drivers
f71805f
f71882fg
fam15h_power
+ fsp-3y
ftsteutates
g760a
g762
@@ -77,6 +78,7 @@ Hardware Monitoring Kernel Drivers
intel-m10-bmc-hwmon
ir35221
ir38064
+ ir36021
isl68137
it87
jc42
@@ -112,6 +114,7 @@ Hardware Monitoring Kernel Drivers
ltc4260
ltc4261
max127
+ max15301
max16064
max16065
max1619
@@ -142,6 +145,7 @@ Hardware Monitoring Kernel Drivers
npcm750-pwm-fan
nsa320
ntc_thermistor
+ nzxt-kraken2
occ
pc87360
pc87427
@@ -168,6 +172,7 @@ Hardware Monitoring Kernel Drivers
smsc47m192
smsc47m1
sparx5-temp
+ stpddc60
tc654
tc74
thmc50
diff --git a/Documentation/hwmon/ir36021.rst b/Documentation/hwmon/ir36021.rst
new file mode 100644
index 000000000000..ca3436b04e20
--- /dev/null
+++ b/Documentation/hwmon/ir36021.rst
@@ -0,0 +1,63 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver ir36021
+=====================
+
+Supported chips:
+
+ * Infineon IR36021
+
+ Prefix: ir36021
+ Addresses scanned: -
+
+ Datasheet: Publicly available at the Infineon website
+ https://www.infineon.com/dgdl/ir36021.pdf?fileId=5546d462533600a4015355d0aa2d1775
+
+Authors:
+ - Chris Packham <chris.packham@alliedtelesis.co.nz>
+
+Description
+-----------
+
+The IR36021 is a dual‐loop digital multi‐phase buck controller designed for
+point of load applications.
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Sysfs attributes
+----------------
+
+======================= ===========================
+curr1_label "iin"
+curr1_input Measured input current
+curr1_alarm Input fault alarm
+
+curr2_label "iout1"
+curr2_input Measured output current
+curr2_alarm Output over-current alarm
+
+in1_label "vin"
+in1_input Measured input voltage
+in1_alarm Input under-voltage alarm
+
+in2_label "vout1"
+in2_input Measured output voltage
+in2_alarm Output over-voltage alarm
+
+power1_label "pin"
+power1_input Measured input power
+power1_alarm Input under-voltage alarm
+
+power2_label "pout1"
+power2_input Measured output power
+
+temp1_input Measured temperature
+temp1_alarm Temperature alarm
+
+temp2_input Measured other loop temperature
+temp2_alarm Temperature alarm
+======================= ===========================
diff --git a/Documentation/hwmon/max15301.rst b/Documentation/hwmon/max15301.rst
new file mode 100644
index 000000000000..e3dc22fe1c6d
--- /dev/null
+++ b/Documentation/hwmon/max15301.rst
@@ -0,0 +1,87 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver max15301
+======================
+
+Supported chips:
+
+ * Maxim MAX15301
+
+ Prefix: 'max15301', 'bmr461'
+
+ Addresses scanned: -
+
+ Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX15301.pdf
+
+Author: Erik Rosen <erik.rosen@metormote.com>
+
+
+Description
+-----------
+
+This driver supports hardware monitoring for Maxim MAX15301 controller chip and
+compatible modules.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details
+on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
+details.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Module parameters
+-----------------
+
+delay
+-----
+
+The controller requires a minimum interval between I2C bus accesses.
+The default interval is set to 100 us. For manual override, the driver
+provides a writeable module parameter, 'delay', which can be used to
+set the interval to a value between 0 and 65,535 microseconds.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Limits are read-write; all other
+attributes are read-only.
+
+======================= ========================================================
+in1_label "vin"
+in1_input Measured input voltage.
+in1_lcrit Critical minimum input voltage.
+in1_crit Critical maximum input voltage.
+in1_lcrit_alarm Input voltage critical low alarm.
+in1_crit_alarm Input voltage critical high alarm.
+
+in2_label "vout1"
+in2_input Measured output voltage.
+in2_lcrit Critical minimum output Voltage.
+in2_crit Critical maximum output voltage.
+in2_lcrit_alarm Critical output voltage critical low alarm.
+in2_crit_alarm Critical output voltage critical high alarm.
+
+curr1_label "iout1"
+curr1_input Measured output current.
+curr1_crit Critical maximum output current.
+curr1_crit_alarm Output current critical high alarm.
+
+temp1_input Measured maximum temperature of all phases.
+temp1_max Maximum temperature limit.
+temp1_max_alarm High temperature alarm.
+temp1_crit Critical maximum temperature limit.
+temp1_crit_alarm Critical maximum temperature alarm.
+======================= ========================================================
diff --git a/Documentation/hwmon/nzxt-kraken2.rst b/Documentation/hwmon/nzxt-kraken2.rst
new file mode 100644
index 000000000000..94025de65a81
--- /dev/null
+++ b/Documentation/hwmon/nzxt-kraken2.rst
@@ -0,0 +1,42 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver nzxt-kraken2
+==========================
+
+Supported devices:
+
+* NZXT Kraken X42
+* NZXT Kraken X52
+* NZXT Kraken X62
+* NZXT Kraken X72
+
+Author: Jonas Malaco
+
+Description
+-----------
+
+This driver enables hardware monitoring support for NZXT Kraken X42/X52/X62/X72
+all-in-one CPU liquid coolers. Three sensors are available: fan speed, pump
+speed and coolant temperature.
+
+Fan and pump control, while supported by the firmware, are not currently
+exposed. The addressable RGB LEDs, present in the integrated CPU water block
+and pump head, are not supported either. But both features can be found in
+existing user-space tools (e.g. `liquidctl`_).
+
+.. _liquidctl: https://github.com/liquidctl/liquidctl
+
+Usage Notes
+-----------
+
+As these are USB HIDs, the driver can be loaded automatically by the kernel and
+supports hot swapping.
+
+Sysfs entries
+-------------
+
+======================= ========================================================
+fan1_input Fan speed (in rpm)
+fan2_input Pump speed (in rpm)
+temp1_input Coolant temperature (in millidegrees Celsius)
+======================= ========================================================
diff --git a/Documentation/hwmon/stpddc60.rst b/Documentation/hwmon/stpddc60.rst
new file mode 100644
index 000000000000..7f7ce7f7871b
--- /dev/null
+++ b/Documentation/hwmon/stpddc60.rst
@@ -0,0 +1,90 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver stpddc60
+======================
+
+Supported chips:
+
+ * ST STPDDC60
+
+ Prefix: 'stpddc60', 'bmr481'
+
+ Addresses scanned: -
+
+ Datasheet: https://flexpowermodules.com/documents/fpm-techspec-bmr481
+
+Author: Erik Rosen <erik.rosen@metormote.com>
+
+
+Description
+-----------
+
+This driver supports hardware monitoring for ST STPDDC60 controller chip and
+compatible modules.
+
+The driver is a client driver to the core PMBus driver. Please see
+Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details
+on PMBus client drivers.
+
+
+Usage Notes
+-----------
+
+This driver does not auto-detect devices. You will have to instantiate the
+devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for
+details.
+
+The vout under- and over-voltage limits are set in relation to the commanded
+output voltage as a positive or negative offset in the interval 50mV to 400mV
+in 50mV steps. This means that the absolute values of the limits will change
+when the commanded output voltage changes. Also, care should be taken when
+writing to those limits since in the worst case the commanded output voltage
+could change at the same time as the limit is written to, wich will lead to
+unpredictable results.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
+
+
+Sysfs entries
+-------------
+
+The following attributes are supported. Vin, iout, pout and temp limits
+are read-write; all other attributes are read-only.
+
+======================= ========================================================
+in1_label "vin"
+in1_input Measured input voltage.
+in1_lcrit Critical minimum input voltage.
+in1_crit Critical maximum input voltage.
+in1_lcrit_alarm Input voltage critical low alarm.
+in1_crit_alarm Input voltage critical high alarm.
+
+in2_label "vout1"
+in2_input Measured output voltage.
+in2_lcrit Critical minimum output voltage.
+in2_crit Critical maximum output voltage.
+in2_lcrit_alarm Critical output voltage critical low alarm.
+in2_crit_alarm Critical output voltage critical high alarm.
+
+curr1_label "iout1"
+curr1_input Measured output current.
+curr1_max Maximum output current.
+curr1_max_alarm Output current high alarm.
+curr1_crit Critical maximum output current.
+curr1_crit_alarm Output current critical high alarm.
+
+power1_label "pout1"
+power1_input Measured output power.
+power1_crit Critical maximum output power.
+power1_crit_alarm Output power critical high alarm.
+
+temp1_input Measured maximum temperature of all phases.
+temp1_max Maximum temperature limit.
+temp1_max_alarm High temperature alarm.
+temp1_crit Critical maximum temperature limit.
+temp1_crit_alarm Critical maximum temperature alarm.
+======================= ========================================================
diff --git a/Documentation/hwmon/sysfs-interface.rst b/Documentation/hwmon/sysfs-interface.rst
index 678c9c60b5a3..13c5acb72d63 100644
--- a/Documentation/hwmon/sysfs-interface.rst
+++ b/Documentation/hwmon/sysfs-interface.rst
@@ -65,6 +65,14 @@ the desired value must be written, note that strings which are not a number
are interpreted as 0! For more on how written strings are interpreted see the
"sysfs attribute writes interpretation" section at the end of this file.
+Attribute access
+----------------
+
+Hardware monitoring sysfs attributes are displayed by unrestricted userspace
+applications. For this reason, all standard ABI attributes shall be world
+readable. Writeable standard ABI attributes shall be writeable only for
+privileged users.
+
-------------------------------------------------------------------------
======= ===========================================
diff --git a/Documentation/hwmon/tps53679.rst b/Documentation/hwmon/tps53679.rst
index c7c589e49789..3b9561648c24 100644
--- a/Documentation/hwmon/tps53679.rst
+++ b/Documentation/hwmon/tps53679.rst
@@ -19,6 +19,14 @@ Supported chips:
Datasheet: https://www.ti.com/lit/gpn/TPS53667
+ * Texas Instruments TPS53676
+
+ Prefix: 'tps53676'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.ti.com/lit/gpn/TPS53676
+
* Texas Instruments TPS53679
Prefix: 'tps53679'
@@ -136,7 +144,7 @@ power1_input Measured input power.
power[N]_label "pout[1-2]".
- TPS53647, TPS53667: N=2
- - TPS53679, TPS53681, TPS53588: N=2,3
+ - TPS53676, TPS53679, TPS53681, TPS53588: N=2,3
power[N]_input Measured output power.
@@ -156,10 +164,11 @@ curr[N]_label "iout[1-2]" or "iout1.[0-5]".
The first digit is the output channel, the second
digit is the phase within the channel. Per-phase
- telemetry supported on TPS53681 only.
+ telemetry supported on TPS53676 and TPS53681 only.
- TPS53647, TPS53667: N=2
- TPS53679, TPS53588: N=2,3
+ - TPS53676: N=2-8
- TPS53681: N=2-9
curr[N]_input Measured output current.