This driver requires REGMAP_I2C to be selected in order to get access to regmap_config and devm_regmap_init_i2c. Add the missing dependency. Fixes: 07830d9ab34c ("hwmon: add initial NXP MC34VR500 PMIC monitoring support") Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx> --- This issue can be easily reproduced with a simple config that includes I2C, HWMON and the affected driver, but not REGMAP_I2C. --- drivers/hwmon/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index ecf09cd2510c..0e7029d0176e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -1275,6 +1275,7 @@ config SENSORS_MAX31790 config SENSORS_MC34VR500 tristate "NXP MC34VR500 hardware monitoring driver" depends on I2C + select REGMAP_I2C help If you say yes here you get support for the temperature and input voltage sensors of the NXP MC34VR500. --- base-commit: 77df9e4bb2224d8ffbddec04c333a9d7965dad6c change-id: 20241002-mc34vr500-select-regmap_i2c-da2b335f27d3 Best regards, -- Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>