964356938f
Added driver to support the 14F021P00 BMC Hardware Monitoring. The BMC is a Board Management Controller including monitoring of the board voltages. Signed-off-by: Andreas Werner <andreas.werner@men.de> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
1.2 KiB
Kernel driver menf21bmc_hwmon
Supported chips: * MEN 14F021P00 Prefix: 'menf21bmc_hwmon' Adresses scanned: -
Author: Andreas Werner andreas.werner@men.de
Description
The menf21bmc is a Board Management Controller (BMC) which provides an I2C interface to the host to access the features implemented in the BMC.
This driver gives access to the voltage monitoring feature of the main voltages of the board. The voltage sensors are connected to the ADC inputs of the BMC which is a PIC16F917 Mikrocontroller.
Usage Notes
This driver is part of the MFD driver named "menf21bmc" and does not auto-detect devices. You will have to instantiate the MFD driver explicitly. Please see Documentation/i2c/instantiating-devices for details.
Sysfs entries
The following attributes are supported. All attributes are read only The Limits are read once by the driver.
in0_input +3.3V input voltage in1_input +5.0V input voltage in2_input +12.0V input voltage in3_input +5V Standby input voltage in4_input VBAT (on board battery)
in[0-4]_min Minimum voltage limit in[0-4]_max Maximum voltage limit
in0_label "MON_3_3V" in1_label "MON_5V" in2_label "MON_12V" in3_label "5V_STANDBY" in4_label "VBAT"