From: Ian Ray Date: Fri, 20 Feb 2026 11:20:22 +0000 (+0200) Subject: hwmon: (ina2xx) Add support for INA234 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=88a928eebccdc5445d874ddcbf1683b76c9f1431;p=thirdparty%2Fkernel%2Flinux.git hwmon: (ina2xx) Add support for INA234 INA234 is register compatible to INA226 (excepting manufacturer and die or device id registers) but has different scaling. Signed-off-by: Ian Ray Reviewed-by: Bence Csókás # v2 Tested-by: Jens Almer Tested-by: Jonas Rebmann Link: https://lore.kernel.org/r/20260220112024.97446-4-ian.ray@gehealthcare.com Signed-off-by: Guenter Roeck --- diff --git a/Documentation/hwmon/ina2xx.rst b/Documentation/hwmon/ina2xx.rst index a4ddf4bd2b081..d64e7af46a124 100644 --- a/Documentation/hwmon/ina2xx.rst +++ b/Documentation/hwmon/ina2xx.rst @@ -74,6 +74,16 @@ Supported chips: https://us1.silergy.com/ + * Texas Instruments INA234 + + Prefix: 'ina234' + + Addresses: I2C 0x40 - 0x43 + + Datasheet: Publicly available at the Texas Instruments website + + https://www.ti.com/ + Author: Lothar Felten Description @@ -89,7 +99,7 @@ interface. The INA220 monitors both shunt drop and supply voltage. The INA226 is a current shunt and power monitor with an I2C interface. The INA226 monitors both a shunt voltage drop and bus supply voltage. -INA230 and INA231 are high or low side current shunt and power monitors +INA230, INA231, and INA234 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. @@ -132,6 +142,7 @@ Additional entries are available for the following chips: * ina226 * ina230 * ina231 + * ina234 * ina260 * sy24655 diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 27088850a0637..817a0bfad8c75 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -2247,7 +2247,7 @@ config SENSORS_INA2XX select REGMAP_I2C help If you say yes here you get support for INA219, INA220, INA226, - INA230, INA231, INA260, and SY24655 power monitor chips. + INA230, INA231, INA234, INA260, and SY24655 power monitor chips. The INA2xx driver is configured for the default configuration of the part as described in the datasheet. diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index cd0d39ee7616c..836e15a5a780a 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -138,6 +138,7 @@ static const struct regmap_config ina2xx_regmap_config = { enum ina2xx_ids { ina219, ina226, + ina234, ina260, sy24655 }; @@ -191,6 +192,18 @@ static const struct ina2xx_config ina2xx_config[] = { .has_power_average = false, .has_update_interval = true, }, + [ina234] = { + .config_default = INA226_CONFIG_DEFAULT, + .calibration_value = 2048, + .shunt_div = 400, /* 2.5 µV/LSB raw ADC reading from INA2XX_SHUNT_VOLTAGE */ + .bus_voltage_shift = 4, + .bus_voltage_lsb = 25600, + .power_lsb_factor = 32, + .has_alerts = true, + .has_ishunt = false, + .has_power_average = false, + .has_update_interval = true, + }, [ina260] = { .config_default = INA260_CONFIG_DEFAULT, .shunt_div = 400, @@ -992,6 +1005,7 @@ static const struct i2c_device_id ina2xx_id[] = { { "ina226", ina226 }, { "ina230", ina226 }, { "ina231", ina226 }, + { "ina234", ina234 }, { "ina260", ina260 }, { "sy24655", sy24655 }, { } @@ -1023,6 +1037,10 @@ static const struct of_device_id __maybe_unused ina2xx_of_match[] = { .compatible = "ti,ina231", .data = (void *)ina226 }, + { + .compatible = "ti,ina234", + .data = (void *)ina234 + }, { .compatible = "ti,ina260", .data = (void *)ina260