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| author | Guenter Roeck <linux@roeck-us.net> | 2024-08-27 10:23:10 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2024-11-10 14:48:06 -0800 |
| commit | 70fb84a109c639637f0636281dbdb21ed8ffb000 (patch) | |
| tree | 0d56d07f25a91b8f7116dfc13764f39c0ad8b020 /Documentation | |
| parent | de0da6ae1908b43b23782d64b4564b5ca3119f7f (diff) | |
| download | linux-stable-70fb84a109c639637f0636281dbdb21ed8ffb000.tar.gz linux-stable-70fb84a109c639637f0636281dbdb21ed8ffb000.tar.bz2 linux-stable-70fb84a109c639637f0636281dbdb21ed8ffb000.zip | |
hwmon: (ina2xx) Add support for INA260
INA260 is similar to other chips of the series, except it has an internal
shunt resistor. The calibration register is therefore not present. Also,
the current register address was changed, though that does not matter for
the driver since the shunt voltage register (which is now the current
register) value is already used to read the current.
Cc: Loic Guegan <loic.guegan@mailbox.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/hwmon/ina2xx.rst | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst index 7f1939b40f74..1ce161e6c0bf 100644 --- a/Documentation/hwmon/ina2xx.rst +++ b/Documentation/hwmon/ina2xx.rst @@ -53,6 +53,16 @@ Supported chips: https://www.ti.com/ + * Texas Instruments INA260 + + Prefix: 'ina260' + + Addresses: I2C 0x40 - 0x4f + + Datasheet: Publicly available at the Texas Instruments website + + https://www.ti.com/ + Author: Lothar Felten <lothar.felten@gmail.com> Description @@ -72,6 +82,9 @@ INA230 and INA231 are high or low side current shunt and power monitors with an I2C interface. The chips monitor both a shunt voltage drop and bus supply voltage. +INA260 is a high or low side current and power monitor with integrated shunt +resistor. + The shunt value in micro-ohms can be set via platform data or device tree at compile-time or via the shunt_resistor attribute in sysfs at run-time. Please refer to the Documentation/devicetree/bindings/hwmon/ti,ina2xx.yaml for bindings @@ -87,16 +100,16 @@ The actual programmed interval may vary from the desired value. General sysfs entries --------------------- -======================= =============================== +======================= =============================================== in0_input Shunt voltage(mV) channel in1_input Bus voltage(mV) channel curr1_input Current(mA) measurement channel power1_input Power(uW) measurement channel -shunt_resistor Shunt resistance(uOhm) channel -======================= =============================== +shunt_resistor Shunt resistance(uOhm) channel (not for ina260) +======================= =============================================== -Sysfs entries for ina226, ina230 and ina231 only ------------------------------------------------- +Additional sysfs entries for ina226, ina230, ina231, and ina260 +--------------------------------------------------------------- ======================= ==================================================== curr1_lcrit Critical low current |