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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
hwmon: (ina238) Update documentation and Kconfig entry
Update driver documentation and Kconfig entry to list all chips supported
by the driver.
Reviewed-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # INA780
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Documentation/hwmon/ina238.rst
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Documentation/hwmon/ina238.rst
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Supported chips:
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* Texas Instruments INA228
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Prefix: 'ina228'
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Addresses: I2C 0x40 - 0x4f
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Datasheet:
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https://www.ti.com/lit/gpn/ina228
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* Texas Instruments INA237
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Prefix: 'ina237'
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Addresses: I2C 0x40 - 0x4f
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Datasheet:
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https://www.ti.com/lit/gpn/ina237
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* Texas Instruments INA238
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Prefix: 'ina238'
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Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings if
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device tree is used.
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INA237 is a functionally equivalent variant of INA238 with slightly
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different accuracy. INA228 is another variant of INA238 with higher ADC
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resolution. This chip also reports the energy.
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SQ52206 is a mostly compatible chip from Sylergy. It reports the energy
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as well as the peak power consumption.
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Sysfs entries
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-------------
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···
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power1_input Power measurement (uW)
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power1_max Maximum power threshold (uW)
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power1_max_alarm Maximum power alarm
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power1_input_highest Peak Power (uW)
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(SQ52206 only)
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curr1_input Current measurement (mA)
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energy1_input Energy measurement (uJ)
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(SQ52206 and INA237 only)
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temp1_input Die temperature measurement (mC)
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temp1_max Maximum die temperature threshold (mC)
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temp1_max_alarm Maximum die temperature alarm
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======================= =======================================================
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Additional sysfs entries for sq52206
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------------------------------------
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======================= =======================================================
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energy1_input Energy measurement (uJ)
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power1_input_highest Peak Power (uW)
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======================= =======================================================
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drivers/hwmon/Kconfig
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drivers/hwmon/Kconfig
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will be called ina2xx.
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config SENSORS_INA238
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tristate "Texas Instruments INA238"
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tristate "Texas Instruments INA238 and compatibles"
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depends on I2C
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select REGMAP_I2C
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help
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If you say yes here you get support for the INA238 power monitor
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chip. This driver supports voltage, current, power and temperature
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measurements as well as alarm configuration.
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If you say yes here you get support for INA228, INA237, INA238, and
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SQ52206 power monitor chips. This driver supports voltage, current,
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power, energy, and temperature measurements as well as alarm
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configuration.
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This driver can also be built as a module. If so, the module
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will be called ina238.