mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 22:25:37 +07:00
ccf988b66d
Convert each file at I2C subsystem, renaming them to .rst and adding to the driver-api book. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
149 lines
4.4 KiB
ReStructuredText
149 lines
4.4 KiB
ReStructuredText
Kernel driver adm1275
|
|
=====================
|
|
|
|
Supported chips:
|
|
|
|
* Analog Devices ADM1075
|
|
|
|
Prefix: 'adm1075'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf
|
|
|
|
* Analog Devices ADM1272
|
|
|
|
Prefix: 'adm1272'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf
|
|
|
|
* Analog Devices ADM1275
|
|
|
|
Prefix: 'adm1275'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1275.pdf
|
|
|
|
* Analog Devices ADM1276
|
|
|
|
Prefix: 'adm1276'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1276.pdf
|
|
|
|
* Analog Devices ADM1278
|
|
|
|
Prefix: 'adm1278'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1278.pdf
|
|
|
|
* Analog Devices ADM1293/ADM1294
|
|
|
|
Prefix: 'adm1293', 'adm1294'
|
|
|
|
Addresses scanned: -
|
|
|
|
Datasheet: http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1293_1294.pdf
|
|
|
|
Author: Guenter Roeck <linux@roeck-us.net>
|
|
|
|
|
|
Description
|
|
-----------
|
|
|
|
This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272,
|
|
ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and
|
|
Digital Power Monitors.
|
|
|
|
ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap
|
|
controllers that allow a circuit board to be removed from or inserted into
|
|
a live backplane. They also feature current and voltage readback via an
|
|
integrated 12 bit analog-to-digital converter (ADC), accessed using a
|
|
PMBus interface.
|
|
|
|
The driver is a client driver to the core PMBus driver. Please see
|
|
Documentation/hwmon/pmbus.rst 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 ADM1075, unlike many other PMBus devices, does not support internal voltage
|
|
or current scaling. Reported voltages, currents, and power are raw measurements,
|
|
and will typically have to be scaled.
|
|
|
|
The shunt value in micro-ohms can be set via device tree at compile-time. Please
|
|
refer to the Documentation/devicetree/bindings/hwmon/adm1275.txt for bindings
|
|
if the device tree is used.
|
|
|
|
Platform data support
|
|
---------------------
|
|
|
|
The driver supports standard PMBus driver platform data. Please see
|
|
Documentation/hwmon/pmbus.rst for details.
|
|
|
|
|
|
Sysfs entries
|
|
-------------
|
|
|
|
The following attributes are supported. Limits are read-write, history reset
|
|
attributes are write-only, all other attributes are read-only.
|
|
|
|
======================= =======================================================
|
|
inX_label "vin1" or "vout1" depending on chip variant and
|
|
configuration. On ADM1075, ADM1293, and ADM1294,
|
|
vout1 reports the voltage on the VAUX pin.
|
|
inX_input Measured voltage.
|
|
inX_min Minimum Voltage.
|
|
inX_max Maximum voltage.
|
|
inX_min_alarm Voltage low alarm.
|
|
inX_max_alarm Voltage high alarm.
|
|
inX_highest Historical maximum voltage.
|
|
inX_reset_history Write any value to reset history.
|
|
|
|
curr1_label "iout1"
|
|
curr1_input Measured current.
|
|
curr1_max Maximum current.
|
|
curr1_max_alarm Current high alarm.
|
|
curr1_lcrit Critical minimum current. Depending on the chip
|
|
configuration, either curr1_lcrit or curr1_crit is
|
|
supported, but not both.
|
|
curr1_lcrit_alarm Critical current low alarm.
|
|
curr1_crit Critical maximum current. Depending on the chip
|
|
configuration, either curr1_lcrit or curr1_crit is
|
|
supported, but not both.
|
|
curr1_crit_alarm Critical current high alarm.
|
|
curr1_highest Historical maximum current.
|
|
curr1_reset_history Write any value to reset history.
|
|
|
|
power1_label "pin1"
|
|
power1_input Input power.
|
|
power1_input_lowest Lowest observed input power. ADM1293 and ADM1294 only.
|
|
power1_input_highest Highest observed input power.
|
|
power1_reset_history Write any value to reset history.
|
|
|
|
Power attributes are supported on ADM1075, ADM1272,
|
|
ADM1276, ADM1293, and ADM1294.
|
|
|
|
temp1_input Chip temperature.
|
|
temp1_max Maximum chip temperature.
|
|
temp1_max_alarm Temperature alarm.
|
|
temp1_crit Critical chip temperature.
|
|
temp1_crit_alarm Critical temperature high alarm.
|
|
temp1_highest Highest observed temperature.
|
|
temp1_reset_history Write any value to reset history.
|
|
|
|
Temperature attributes are supported on ADM1272 and
|
|
ADM1278.
|
|
======================= =======================================================
|